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Advanced global options:
-cpuflags flags     force specific cpu flags
-hide_banner hide_banner  do not show program banner
-copy_unknown       Copy unknown stream types
-benchmark          add timings for benchmarking
-benchmark_all      add timings for each task
-progress url       write program-readable progress information
-stdin              enable or disable interaction on standard input
-timelimit limit    set max runtime in seconds
-dump               dump each input packet
-hex                when dumping packets, also dump the payload
-vsync              video sync method
-frame_drop_threshold   frame drop threshold
-async              audio sync method
-adrift_threshold threshold  audio drift threshold
-copyts             copy timestamps
-start_at_zero      shift input timestamps to start at 0 when using copyts
-copytb mode        copy input stream time base when stream copying
-dts_delta_threshold threshold  timestamp discontinuity delta threshold
-dts_error_threshold threshold  timestamp error delta threshold
-xerror error       exit on error
-abort_on flags     abort on the specified condition flags
-filter_complex graph_description  create a complex filtergraph
-lavfi graph_description  create a complex filtergraph
-filter_complex_script filename  read complex filtergraph description from a file
-debug_ts           print timestamp debugging info
-intra              deprecated use -g 1
-sameq              Removed
-same_quant         Removed
-deinterlace        this option is deprecated, use the yadif filter instead
-psnr               calculate PSNR of compressed frames
-vstats             dump video coding statistics to file
-vstats_file file   dump video coding statistics to file
-vstats_version     Version of the vstats format to use.
-qphist             show QP histogram
-vc channel         deprecated, use -channel
-tvstd standard     deprecated, use -standard
-isync              this option is deprecated and does nothing
-sdp_file file      specify a file in which to print sdp information
-qsv_device device  set QSV hardware device (DirectX adapter index, DRM path or X11 display name)
-init_hw_device args  initialise hardware device
-filter_hw_device device  set hardware device used when filtering
-gui_hwnd           gui hWnd

Per-file main options:
-f fmt              force format
-c codec            codec name
-codec codec        codec name
-pre preset         preset name
-map_metadata outfile[,metadata]:infile[,metadata]  set metadata information of outfile from infile
-t duration         record or transcode "duration" seconds of audio/video
-to time_stop       record or transcode stop time
-fs limit_size      set the limit file size in bytes
-ss time_off        set the start time offset
-sseof time_off     set the start time offset relative to EOF
-seek_timestamp     enable/disable seeking by timestamp with -ss
-timestamp time     set the recording timestamp ('now' to set the current time)
-metadata string=string  add metadata
-program title=string:st=number...  add program with specified streams
-target type        specify target file type ("vcd", "svcd", "dvd", "dv" or "dv50" with optional prefixes "pal-", "ntsc-" or "film-")
-apad               audio pad
-frames number      set the number of frames to output
-filter filter_graph  set stream filtergraph
-filter_script filename  read stream filtergraph description from a file
-reinit_filter      reinit filtergraph on input parameter changes
-discard            discard
-disposition        disposition

Advanced per-file options:
-map [-]input_file_id[:stream_specifier][,sync_file_id[:stream_s  set input stream mapping
-map_channel file.stream.channel[:syncfile.syncstream]  map an audio channel from one stream to another
-map_chapters input_file_index  set chapters mapping
-accurate_seek      enable/disable accurate seeking with -ss
-itsoffset time_off  set the input ts offset
-itsscale scale     set the input ts scale
-dframes number     set the number of data frames to output
-re                 read input at native frame rate
-shortest           finish encoding within shortest input
-bitexact           bitexact mode
-copyinkf           copy initial non-keyframes
-copypriorss        copy or discard frames before start time
-tag fourcc/tag     force codec tag/fourcc
-q q                use fixed quality scale (VBR)
-qscale q           use fixed quality scale (VBR)
-profile profile    set profile
-attach filename    add an attachment to the output file
-dump_attachment filename  extract an attachment into a file
-stream_loop loop count  set number of times input stream shall be looped
-thread_queue_size  set the maximum number of queued packets from the demuxer
-find_stream_info   read and decode the streams to fill missing information with heuristics
-autorotate         automatically insert correct rotate filters
-muxdelay seconds   set the maximum demux-decode delay
-muxpreload seconds  set the initial demux-decode delay
-time_base ratio    set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)
-enc_time_base ratio  set the desired time base for the encoder (1:24, 1:48000 or 0.04166, 2.0833e-5). two special values are defined - 0 = use frame rate (video) or sample rate (audio),-1 = match source time base
-bsf bitstream_filters  A comma-separated list of bitstream filters
-fpre filename      set options from indicated preset file
-max_muxing_queue_size packets  maximum number of packets that can be buffered while waiting for all streams to initialize
-dcodec codec       force data codec ('copy' to copy stream)

Video options:
-vframes number     set the number of video frames to output
-r rate             set frame rate (Hz value, fraction or abbreviation)
-s size             set frame size (WxH or abbreviation)
-aspect aspect      set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)
-bits_per_raw_sample number  set the number of bits per raw sample
-vn                 disable video
-vcodec codec       force video codec ('copy' to copy stream)
-timecode hh:mm:ss[:;.]ff  set initial TimeCode value.
-pass n             select the pass number (1 to 3)
-vf filter_graph    set video filters
-ab bitrate         audio bitrate (please use -b:a)
-b bitrate          video bitrate (please use -b:v)
-dn                 disable data

Advanced Video options:
-pix_fmt format     set pixel format
-intra              deprecated use -g 1
-rc_override override  rate control override for specific intervals
-sameq              Removed
-same_quant         Removed
-passlogfile prefix  select two pass log file name prefix
-deinterlace        this option is deprecated, use the yadif filter instead
-psnr               calculate PSNR of compressed frames
-vstats             dump video coding statistics to file
-vstats_file file   dump video coding statistics to file
-vstats_version     Version of the vstats format to use.
-intra_matrix matrix  specify intra matrix coeffs
-inter_matrix matrix  specify inter matrix coeffs
-chroma_intra_matrix matrix  specify intra matrix coeffs
-top                top=1/bottom=0/auto=-1 field first
-vtag fourcc/tag    force video tag/fourcc
-qphist             show QP histogram
-force_fps          force the selected framerate, disable the best supported framerate selection
-streamid streamIndex:value  set the value of an outfile streamid
-force_key_frames timestamps  force key frames at specified timestamps
-hwaccel hwaccel name  use HW accelerated decoding
-hwaccel_device devicename  select a device for HW acceleration
-hwaccel_output_format format  select output format used with HW accelerated decoding
-vc channel         deprecated, use -channel
-tvstd standard     deprecated, use -standard
-vbsf video bitstream_filters  deprecated
-vpre preset        set the video options to the indicated preset

Audio options:
-aframes number     set the number of audio frames to output
-aq quality         set audio quality (codec-specific)
-ar rate            set audio sampling rate (in Hz)
-ac channels        set number of audio channels
-an                 disable audio
-acodec codec       force audio codec ('copy' to copy stream)
-vol volume         change audio volume (256=normal)
-af filter_graph    set audio filters

Advanced Audio options:
-atag fourcc/tag    force audio tag/fourcc
-sample_fmt format  set sample format
-channel_layout layout  set channel layout
-guess_layout_max   set the maximum number of channels to try to guess the channel layout
-absf audio bitstream_filters  deprecated
-apre preset        set the audio options to the indicated preset

Subtitle options:
-s size             set frame size (WxH or abbreviation)
-sn                 disable subtitle
-scodec codec       force subtitle codec ('copy' to copy stream)
-stag fourcc/tag    force subtitle tag/fourcc
-fix_sub_duration   fix subtitles duration
-canvas_size size   set canvas size (WxH or abbreviation)
-spre preset        set the subtitle options to the indicated preset


AVCodecContext AVOptions:
  -b                 <int64>      E..VA.... set bitrate (in bits/s) (from 0 to I64_MAX) (default 200000)
  -ab                <int64>      E...A.... set bitrate (in bits/s) (from 0 to INT_MAX) (default 128000)
  -bt                <int>        E..V..... Set video bitrate tolerance (in bits/s). In 1-pass mode, bitrate tolerance specifies how far ratecontrol is willing to deviate from the target average bitrate value. This is not related to minimum/maximum bitrate. Lowering tolerance too much has an adverse effect on quality. (from 1 to INT_MAX) (default 4e+006)
  -flags             <flags>      ED.VAS... (default 0)
     unaligned                    .D.V..... allow decoders to produce unaligned output
     mv4                          E..V..... use four motion vectors per macroblock (MPEG-4)
     qpel                         E..V..... use 1/4-pel motion compensation
     loop                         E..V..... use loop filter
     gray                         ED.V..... only decode/encode grayscale
     psnr                         E..V..... error[?] variables will be set during encoding
     truncated                    .D.V..... Input bitstream might be randomly truncated
     ildct                        E..V..... use interlaced DCT
     low_delay                    ED.V..... force low delay
     global_header                E..VA.... place global headers in extradata instead of every keyframe
     bitexact                     ED.VAS... use only bitexact functions (except (I)DCT)
     aic                          E..V..... H.263 advanced intra coding / MPEG-4 AC prediction
     ilme                         E..V..... interlaced motion estimation
     cgop                         E..V..... closed GOP
     output_corrupt               .D.V..... Output even potentially corrupted frames
  -g                 <int>        E..V..... set the group of picture (GOP) size (from INT_MIN to INT_MAX) (default 12)
  -ar                <int>        ED..A.... set audio sampling rate (in Hz) (from 0 to INT_MAX) (default 0)
  -ac                <int>        ED..A.... set number of audio channels (from 0 to INT_MAX) (default 0)
  -cutoff            <int>        E...A.... set cutoff bandwidth (from INT_MIN to INT_MAX) (default 0)
  -frame_size        <int>        E...A.... (from 0 to INT_MAX) (default 0)
  -qcomp             <float>      E..V..... video quantizer scale compression (VBR). Constant of ratecontrol equation. Recommended range for default rc_eq: 0.0-1.0 (from -FLT_MAX to FLT_MAX) (default 0.5)
  -qblur             <float>      E..V..... video quantizer scale blur (VBR) (from -1 to FLT_MAX) (default 0.5)
  -qmin              <int>        E..V..... minimum video quantizer scale (VBR) (from -1 to 69) (default 2)
  -qmax              <int>        E..V..... maximum video quantizer scale (VBR) (from -1 to 1024) (default 31)
  -qdiff             <int>        E..V..... maximum difference between the quantizer scales (VBR) (from INT_MIN to INT_MAX) (default 3)
  -bf                <int>        E..V..... set maximum number of B-frames between non-B-frames (from -1 to INT_MAX) (default 0)
  -b_qfactor         <float>      E..V..... QP factor between P- and B-frames (from -FLT_MAX to FLT_MAX) (default 1.25)
  -b_strategy        <int>        E..V..... strategy to choose between I/P/B-frames (from INT_MIN to INT_MAX) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -bug               <flags>      .D.V..... work around not autodetected encoder bugs (default autodetect)
     autodetect                   .D.V.....
     xvid_ilace                   .D.V..... Xvid interlacing bug (autodetected if FOURCC == XVIX)
     ump4                         .D.V..... (autodetected if FOURCC == UMP4)
     no_padding                   .D.V..... padding bug (autodetected)
     amv                          .D.V.....
     qpel_chroma                  .D.V.....
     std_qpel                     .D.V..... old standard qpel (autodetected per FOURCC/version)
     qpel_chroma2                 .D.V.....
     direct_blocksize              .D.V..... direct-qpel-blocksize bug (autodetected per FOURCC/version)
     edge                         .D.V..... edge padding bug (autodetected per FOURCC/version)
     hpel_chroma                  .D.V.....
     dc_clip                      .D.V.....
     ms                           .D.V..... work around various bugs in Microsoft's broken decoders
     trunc                        .D.V..... truncated frames
     iedge                        .D.V.....
  -strict            <int>        ED.VA.... how strictly to follow the standards (from INT_MIN to INT_MAX) (default normal)
     very                         ED.VA.... strictly conform to a older more strict version of the spec or reference software
     strict                       ED.VA.... strictly conform to all the things in the spec no matter what the consequences
     normal                       ED.VA....
     unofficial                   ED.VA.... allow unofficial extensions
     experimental                 ED.VA.... allow non-standardized experimental things
  -b_qoffset         <float>      E..V..... QP offset between P- and B-frames (from -FLT_MAX to FLT_MAX) (default 1.25)
  -err_detect        <flags>      .D.VA.... set error detection flags (default 0)
     crccheck                     .D.VA.... verify embedded CRCs
     bitstream                    .D.VA.... detect bitstream specification deviations
     buffer                       .D.VA.... detect improper bitstream length
     explode                      .D.VA.... abort decoding on minor error detection
     ignore_err                   .D.VA.... ignore errors
     careful                      .D.VA.... consider things that violate the spec, are fast to check and have not been seen in the wild as errors
     compliant                    .D.VA.... consider all spec non compliancies as errors
     aggressive                   .D.VA.... consider things that a sane encoder should not do as an error
  -mpeg_quant        <int>        E..V..... use MPEG quantizers instead of H.263 (from INT_MIN to INT_MAX) (default 0)
  -maxrate           <int64>      E..VA.... maximum bitrate (in bits/s). Used for VBV together with bufsize. (from 0 to INT_MAX) (default 0)
  -minrate           <int64>      E..VA.... minimum bitrate (in bits/s). Most useful in setting up a CBR encode. It is of little use otherwise. (from INT_MIN to INT_MAX) (default 0)
  -bufsize           <int>        E..VA.... set ratecontrol buffer size (in bits) (from INT_MIN to INT_MAX) (default 0)
  -i_qfactor         <float>      E..V..... QP factor between P- and I-frames (from -FLT_MAX to FLT_MAX) (default -0.8)
  -i_qoffset         <float>      E..V..... QP offset between P- and I-frames (from -FLT_MAX to FLT_MAX) (default 0)
  -dct               <int>        E..V..... DCT algorithm (from 0 to INT_MAX) (default auto)
     auto                         E..V..... autoselect a good one
     fastint                      E..V..... fast integer
     int                          E..V..... accurate integer
     mmx                          E..V.....
     altivec                      E..V.....
     faan                         E..V..... floating point AAN DCT
  -lumi_mask         <float>      E..V..... compresses bright areas stronger than medium ones (from -FLT_MAX to FLT_MAX) (default 0)
  -tcplx_mask        <float>      E..V..... temporal complexity masking (from -FLT_MAX to FLT_MAX) (default 0)
  -scplx_mask        <float>      E..V..... spatial complexity masking (from -FLT_MAX to FLT_MAX) (default 0)
  -p_mask            <float>      E..V..... inter masking (from -FLT_MAX to FLT_MAX) (default 0)
  -dark_mask         <float>      E..V..... compresses dark areas stronger than medium ones (from -FLT_MAX to FLT_MAX) (default 0)
  -idct              <int>        ED.V..... select IDCT implementation (from 0 to INT_MAX) (default auto)
     auto                         ED.V.....
     int                          ED.V.....
     simple                       ED.V.....
     simplemmx                    ED.V.....
     arm                          ED.V.....
     altivec                      ED.V.....
     simplearm                    ED.V.....
     simplearmv5te                ED.V.....
     simplearmv6                  ED.V.....
     simpleneon                   ED.V.....
     xvid                         ED.V.....
     xvidmmx                      ED.V..... deprecated, for compatibility only
     faani                        ED.V..... floating point AAN IDCT
     simpleauto                   ED.V.....
  -ec                <flags>      .D.V..... set error concealment strategy (default guess_mvs+deblock)
     guess_mvs                    .D.V..... iterative motion vector (MV) search (slow)
     deblock                      .D.V..... use strong deblock filter for damaged MBs
     favor_inter                  .D.V..... favor predicting from the previous frame
  -pred              <int>        E..V..... prediction method (from INT_MIN to INT_MAX) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....
  -aspect            <rational>   E..V..... sample aspect ratio (from 0 to 10) (default 0/1)
  -sar               <rational>   E..V..... sample aspect ratio (from 0 to 10) (default 0/1)
  -debug             <flags>      ED.VAS... print specific debug info (default 0)
     pict                         .D.V..... picture info
     rc                           E..V..... rate control
     bitstream                    .D.V.....
     mb_type                      .D.V..... macroblock (MB) type
     qp                           .D.V..... per-block quantization parameter (QP)
     mv                           .D.V..... motion vector
     dct_coeff                    .D.V.....
     green_metadata               .D.V.....
     skip                         .D.V.....
     startcode                    .D.V.....
     er                           .D.V..... error recognition
     mmco                         .D.V..... memory management control operations (H.264)
     bugs                         .D.V.....
     vis_qp                       .D.V..... visualize quantization parameter (QP), lower QP are tinted greener
     vis_mb_type                  .D.V..... visualize block types
     buffers                      .D.V..... picture buffer allocations
     thread_ops                   .D.VA.... threading operations
     nomc                         .D.VA.... skip motion compensation
  -cmp               <int>        E..V..... full-pel ME compare function (from INT_MIN to INT_MAX) (default sad)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -subcmp            <int>        E..V..... sub-pel ME compare function (from INT_MIN to INT_MAX) (default sad)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -mbcmp             <int>        E..V..... macroblock compare function (from INT_MIN to INT_MAX) (default sad)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -ildctcmp          <int>        E..V..... interlaced DCT compare function (from INT_MIN to INT_MAX) (default vsad)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -dia_size          <int>        E..V..... diamond type & size for motion estimation (from INT_MIN to INT_MAX) (default 0)
  -last_pred         <int>        E..V..... amount of motion predictors from the previous frame (from INT_MIN to INT_MAX) (default 0)
  -preme             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)
  -precmp            <int>        E..V..... pre motion estimation compare function (from INT_MIN to INT_MAX) (default sad)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -pre_dia_size      <int>        E..V..... diamond type & size for motion estimation pre-pass (from INT_MIN to INT_MAX) (default 0)
  -subq              <int>        E..V..... sub-pel motion estimation quality (from INT_MIN to INT_MAX) (default 8)
  -me_range          <int>        E..V..... limit motion vectors range (1023 for DivX player) (from INT_MIN to INT_MAX) (default 0)
  -global_quality    <int>        E..VA.... (from INT_MIN to INT_MAX) (default 0)
  -coder             <int>        E..V..... (from INT_MIN to INT_MAX) (default vlc)
     vlc                          E..V..... variable length coder / Huffman coder
     ac                           E..V..... arithmetic coder
     raw                          E..V..... raw (no encoding)
     rle                          E..V..... run-length coder
  -context           <int>        E..V..... context model (from INT_MIN to INT_MAX) (default 0)
  -mbd               <int>        E..V..... macroblock decision algorithm (high quality mode) (from 0 to 2) (default simple)
     simple                       E..V..... use mbcmp
     bits                         E..V..... use fewest bits
     rd                           E..V..... use best rate distortion
  -sc_threshold      <int>        E..V..... scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -nr                <int>        E..V..... noise reduction (from INT_MIN to INT_MAX) (default 0)
  -rc_init_occupancy <int>        E..V..... number of bits which should be loaded into the rc buffer before decoding starts (from INT_MIN to INT_MAX) (default 0)
  -flags2            <flags>      ED.VA.... (default 0)
     fast                         E..V..... allow non-spec-compliant speedup tricks
     noout                        E..V..... skip bitstream encoding
     ignorecrop                   .D.V..... ignore cropping information from sps
     local_header                 E..V..... place global headers at every keyframe instead of in extradata
     chunks                       .D.V..... Frame data might be split into multiple chunks
     showall                      .D.V..... Show all frames before the first keyframe
     export_mvs                   .D.V..... export motion vectors through frame side data
     skip_manual                  .D.V..... do not skip samples and export skip information as frame side data
     ass_ro_flush_noop              .D...S... do not reset ASS ReadOrder field on flush
  -threads           <int>        ED.VA.... set the number of threads (from 0 to INT_MAX) (default 1)
     auto                         ED.V..... autodetect a suitable number of threads to use
  -dc                <int>        E..V..... intra_dc_precision (from -8 to 16) (default 0)
  -nssew             <int>        E..V..... nsse weight (from INT_MIN to INT_MAX) (default 8)
  -skip_top          <int>        .D.V..... number of macroblock rows at the top which are skipped (from INT_MIN to INT_MAX) (default 0)
  -skip_bottom       <int>        .D.V..... number of macroblock rows at the bottom which are skipped (from INT_MIN to INT_MAX) (default 0)
  -profile           <int>        E..VA.... (from INT_MIN to INT_MAX) (default unknown)
     unknown                      E..VA....
     aac_main                     E...A....
     aac_low                      E...A....
     aac_ssr                      E...A....
     aac_ltp                      E...A....
     aac_he                       E...A....
     aac_he_v2                    E...A....
     aac_ld                       E...A....
     aac_eld                      E...A....
     mpeg2_aac_low                E...A....
     mpeg2_aac_he                 E...A....
     dts                          E...A....
     dts_es                       E...A....
     dts_96_24                    E...A....
     dts_hd_hra                   E...A....
     dts_hd_ma                    E...A....
     mpeg4_sp                     E..V.....
     mpeg4_core                   E..V.....
     mpeg4_main                   E..V.....
     mpeg4_asp                    E..V.....
     main10                       E..V.....
     msbc                         E...A....
  -level             <int>        E..VA.... (from INT_MIN to INT_MAX) (default unknown)
     unknown                      E..VA....
  -lowres            <int>        .D.VA.... decode at 1= 1/2, 2=1/4, 3=1/8 resolutions (from 0 to INT_MAX) (default 0)
  -skip_threshold    <int>        E..V..... frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skipcmp           <int>        E..V..... frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... sum of absolute differences, fast
     sse                          E..V..... sum of squared errors
     satd                         E..V..... sum of absolute Hadamard transformed differences
     dct                          E..V..... sum of absolute DCT transformed differences
     psnr                         E..V..... sum of squared quantization errors (avoid, low quality)
     bit                          E..V..... number of bits needed for the block
     rd                           E..V..... rate distortion optimal, slow
     zero                         E..V..... 0
     vsad                         E..V..... sum of absolute vertical differences
     vsse                         E..V..... sum of squared vertical differences
     nsse                         E..V..... noise preserving sum of squared differences
     w53                          E..V..... 5/3 wavelet, only used in snow
     w97                          E..V..... 9/7 wavelet, only used in snow
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... sum of absolute differences, median predicted
  -mblmin            <int>        E..V..... minimum macroblock Lagrange factor (VBR) (from 1 to 32767) (default 236)
  -mblmax            <int>        E..V..... maximum macroblock Lagrange factor (VBR) (from 1 to 32767) (default 3658)
  -mepc              <int>        E..V..... motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -skip_loop_filter  <int>        .D.V..... skip loop filtering process for the selected frames (from INT_MIN to INT_MAX) (default default)
     none                         .D.V..... discard no frame
     default                      .D.V..... discard useless frames
     noref                        .D.V..... discard all non-reference frames
     bidir                        .D.V..... discard all bidirectional frames
     nokey                        .D.V..... discard all frames except keyframes
     nointra                      .D.V..... discard all frames except I frames
     all                          .D.V..... discard all frames
  -skip_idct         <int>        .D.V..... skip IDCT/dequantization for the selected frames (from INT_MIN to INT_MAX) (default default)
     none                         .D.V..... discard no frame
     default                      .D.V..... discard useless frames
     noref                        .D.V..... discard all non-reference frames
     bidir                        .D.V..... discard all bidirectional frames
     nokey                        .D.V..... discard all frames except keyframes
     nointra                      .D.V..... discard all frames except I frames
     all                          .D.V..... discard all frames
  -skip_frame        <int>        .D.V..... skip decoding for the selected frames (from INT_MIN to INT_MAX) (default default)
     none                         .D.V..... discard no frame
     default                      .D.V..... discard useless frames
     noref                        .D.V..... discard all non-reference frames
     bidir                        .D.V..... discard all bidirectional frames
     nokey                        .D.V..... discard all frames except keyframes
     nointra                      .D.V..... discard all frames except I frames
     all                          .D.V..... discard all frames
  -bidir_refine      <int>        E..V..... refine the two motion vectors used in bidirectional macroblocks (from 0 to 4) (default 1)
  -brd_scale         <int>        E..V..... downscale frames for dynamic B-frame decision (from 0 to 10) (default 0)
  -keyint_min        <int>        E..V..... minimum interval between IDR-frames (from INT_MIN to INT_MAX) (default 25)
  -refs              <int>        E..V..... reference frames to consider for motion compensation (from INT_MIN to INT_MAX) (default 1)
  -chromaoffset      <int>        E..V..... chroma QP offset from luma (from INT_MIN to INT_MAX) (default 0)
  -trellis           <int>        E..VA.... rate-distortion optimal quantization (from INT_MIN to INT_MAX) (default 0)
  -mv0_threshold     <int>        E..V..... (from 0 to INT_MAX) (default 256)
  -b_sensitivity     <int>        E..V..... adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -compression_level <int>        E..VA.... (from INT_MIN to INT_MAX) (default -1)
  -min_prediction_order <int>        E...A.... (from INT_MIN to INT_MAX) (default -1)
  -max_prediction_order <int>        E...A.... (from INT_MIN to INT_MAX) (default -1)
  -timecode_frame_start <int64>      E..V..... GOP timecode frame start number, in non-drop-frame format (from -1 to I64_MAX) (default -1)
  -channel_layout    <uint64>     ED..A.... (from 0 to 1.84467e+019) (default 0)
  -request_channel_layout <uint64>     .D..A.... (from 0 to 1.84467e+019) (default 0)
  -rc_max_vbv_use    <float>      E..V..... (from 0 to FLT_MAX) (default 0)
  -rc_min_vbv_use    <float>      E..V..... (from 0 to FLT_MAX) (default 3)
  -ticks_per_frame   <int>        ED.VA.... (from 1 to INT_MAX) (default 1)
  -color_primaries   <int>        ED.V..... color primaries (from 1 to INT_MAX) (default unknown)
     bt709                        ED.V..... BT.709
     unknown                      ED.V..... Unspecified
     bt470m                       ED.V..... BT.470 M
     bt470bg                      ED.V..... BT.470 BG
     smpte170m                    ED.V..... SMPTE 170 M
     smpte240m                    ED.V..... SMPTE 240 M
     film                         ED.V..... Film
     bt2020                       ED.V..... BT.2020
     smpte428                     ED.V..... SMPTE 428-1
     smpte428_1                   ED.V..... SMPTE 428-1
     smpte431                     ED.V..... SMPTE 431-2
     smpte432                     ED.V..... SMPTE 422-1
     jedec-p22                    ED.V..... JEDEC P22
     unspecified                  ED.V..... Unspecified
  -color_trc         <int>        ED.V..... color transfer characteristics (from 1 to INT_MAX) (default unknown)
     bt709                        ED.V..... BT.709
     unknown                      ED.V..... Unspecified
     gamma22                      ED.V..... BT.470 M
     gamma28                      ED.V..... BT.470 BG
     smpte170m                    ED.V..... SMPTE 170 M
     smpte240m                    ED.V..... SMPTE 240 M
     linear                       ED.V..... Linear
     log100                       ED.V..... Log
     log316                       ED.V..... Log square root
     iec61966-2-4                 ED.V..... IEC 61966-2-4
     bt1361e                      ED.V..... BT.1361
     iec61966-2-1                 ED.V..... IEC 61966-2-1
     bt2020-10                    ED.V..... BT.2020 - 10 bit
     bt2020-12                    ED.V..... BT.2020 - 12 bit
     smpte2084                    ED.V..... SMPTE 2084
     smpte428                     ED.V..... SMPTE 428-1
     arib-std-b67                 ED.V..... ARIB STD-B67
     unspecified                  ED.V..... Unspecified
     log                          ED.V..... Log
     log_sqrt                     ED.V..... Log square root
     iec61966_2_4                 ED.V..... IEC 61966-2-4
     bt1361                       ED.V..... BT.1361
     iec61966_2_1                 ED.V..... IEC 61966-2-1
     bt2020_10bit                 ED.V..... BT.2020 - 10 bit
     bt2020_12bit                 ED.V..... BT.2020 - 12 bit
     smpte428_1                   ED.V..... SMPTE 428-1
  -colorspace        <int>        ED.V..... color space (from 0 to INT_MAX) (default unknown)
     rgb                          ED.V..... RGB
     bt709                        ED.V..... BT.709
     unknown                      ED.V..... Unspecified
     fcc                          ED.V..... FCC
     bt470bg                      ED.V..... BT.470 BG
     smpte170m                    ED.V..... SMPTE 170 M
     smpte240m                    ED.V..... SMPTE 240 M
     ycgco                        ED.V..... YCGCO
     bt2020nc                     ED.V..... BT.2020 NCL
     bt2020c                      ED.V..... BT.2020 CL
     smpte2085                    ED.V..... SMPTE 2085
     unspecified                  ED.V..... Unspecified
     ycocg                        ED.V..... YCGCO
     bt2020_ncl                   ED.V..... BT.2020 NCL
     bt2020_cl                    ED.V..... BT.2020 CL
  -color_range       <int>        ED.V..... color range (from 0 to INT_MAX) (default unknown)
     unknown                      ED.V..... Unspecified
     tv                           ED.V..... MPEG (219*2^(n-8))
     pc                           ED.V..... JPEG (2^n-1)
     unspecified                  ED.V..... Unspecified
     mpeg                         ED.V..... MPEG (219*2^(n-8))
     jpeg                         ED.V..... JPEG (2^n-1)
  -chroma_sample_location <int>        ED.V..... chroma sample location (from 0 to INT_MAX) (default unknown)
     unknown                      ED.V..... Unspecified
     left                         ED.V..... Left
     center                       ED.V..... Center
     topleft                      ED.V..... Top-left
     top                          ED.V..... Top
     bottomleft                   ED.V..... Bottom-left
     bottom                       ED.V..... Bottom
     unspecified                  ED.V..... Unspecified
  -slices            <int>        E..V..... set the number of slices, used in parallelized encoding (from 0 to INT_MAX) (default 0)
  -thread_type       <flags>      ED.VA.... select multithreading type (default slice+frame)
     slice                        ED.V.....
     frame                        ED.V.....
  -audio_service_type <int>        E...A.... audio service type (from 0 to 8) (default ma)
     ma                           E...A.... Main Audio Service
     ef                           E...A.... Effects
     vi                           E...A.... Visually Impaired
     hi                           E...A.... Hearing Impaired
     di                           E...A.... Dialogue
     co                           E...A.... Commentary
     em                           E...A.... Emergency
     vo                           E...A.... Voice Over
     ka                           E...A.... Karaoke
  -request_sample_fmt <sample_fmt> .D..A.... sample format audio decoders should prefer (default none)
  -sub_charenc       <string>     .D...S... set input text subtitles character encoding
  -sub_charenc_mode  <flags>      .D...S... set input text subtitles character encoding mode (default 0)
     do_nothing                   .D...S...
     auto                         .D...S...
     pre_decoder                  .D...S...
     ignore                       .D...S...
  -sub_text_format   <int>        .D...S... set decoded text subtitle format (from 0 to 1) (default ass_with_timings)
     ass                          .D...S...
     ass_with_timings              .D...S...
  -refcounted_frames <boolean>    .D.VA.... (default false)
  -side_data_only_packets <boolean>    E..VA.... (default true)
  -apply_cropping    <boolean>    .D.V..... (default true)
  -skip_alpha        <boolean>    .D.V..... Skip processing alpha (default false)
  -field_order       <int>        ED.V..... Field order (from 0 to 5) (default 0)
     progressive                  ED.V.....
     tt                           ED.V.....
     bb                           ED.V.....
     tb                           ED.V.....
     bt                           ED.V.....
  -dump_separator    <string>     ED.VAS... set information dump field separator
  -codec_whitelist   <string>     .D.VAS... List of decoders that are allowed to be used
  -max_pixels        <int64>      ED.VAS... Maximum number of pixels (from 0 to INT_MAX) (default INT_MAX)
  -hwaccel_flags     <flags>      .D.V..... (default ignore_level)
     ignore_level                 .D.V..... ignore level even if the codec level used is unknown or higher than the maximum supported level reported by the hardware driver
     allow_high_depth              .D.V..... allow to output YUV pixel formats with a different chroma sampling than 4:2:0 and/or other than 8 bits per component
     allow_profile_mismatch              .D.V..... attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream
  -extra_hw_frames   <int>        .D.V..... Number of extra hardware frames to allocate for the user (from -1 to INT_MAX) (default -1)

amv encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)
  -pred              <int>        E..V..... Prediction method (from 1 to 3) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....
  -huffman           <int>        E..V..... Huffman table strategy (from 0 to 1) (default optimal)
     default                      E..V.....
     optimal                      E..V.....

APNG encoder AVOptions:
  -dpi               <int>        E..V..... Set image resolution (in dots per inch) (from 0 to 65536) (default 0)
  -dpm               <int>        E..V..... Set image resolution (in dots per meter) (from 0 to 65536) (default 0)
  -pred              <int>        E..V..... Prediction method (from 0 to 5) (default none)
     none                         E..V.....
     sub                          E..V.....
     up                           E..V.....
     avg                          E..V.....
     paeth                        E..V.....
     mixed                        E..V.....

cinepak AVOptions:
  -max_extra_cb_iterations <int>        E..V..... Max extra codebook recalculation passes, more is better and slower (from 0 to INT_MAX) (default 2)
  -skip_empty_cb     <boolean>    E..V..... Avoid wasting bytes, ignore vintage MacOS decoder (default false)
  -max_strips        <int>        E..V..... Limit strips/frame, vintage compatible is 1..3, otherwise the more the better (from 1 to 32) (default 3)
  -min_strips        <int>        E..V..... Enforce min strips/frame, more is worse and faster, must be <= max_strips (from 1 to 32) (default 1)
  -strip_number_adaptivity <int>        E..V..... How fast the strip number adapts, more is slightly better, much slower (from 0 to 31) (default 0)

cljr encoder AVOptions:
  -dither_type       <int>        E..V..... Dither type (from 0 to 2) (default 1)

dnxhd AVOptions:
  -nitris_compat     <boolean>    E..V..... encode with Avid Nitris compatibility (default false)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 0)
  -profile           <int>        E..V..... (from 0 to 5) (default dnxhd)
     dnxhd                        E..V.....
     dnxhr_444                    E..V.....
     dnxhr_hqx                    E..V.....
     dnxhr_hq                     E..V.....
     dnxhr_sq                     E..V.....
     dnxhr_lb                     E..V.....

dvvideo encoder AVOptions:
  -quant_deadzone    <int>        E..V..... Quantizer dead zone (from 0 to 1024) (default 7)

ffv1 encoder AVOptions:
  -slicecrc          <boolean>    E..V..... Protect slices with CRCs (default auto)
  -coder             <int>        E..V..... Coder type (from -2 to 2) (default rice)
     rice                         E..V..... Golomb rice
     range_def                    E..V..... Range with default table
     range_tab                    E..V..... Range with custom table
     ac                           E..V..... Range with custom table (the ac option exists for compatibility and is deprecated)
  -context           <int>        E..V..... Context model (from 0 to 1) (default 0)

ffvhuff AVOptions:
  -non_deterministic <boolean>    E..V..... Allow multithreading for e.g. context=1 at the expense of determinism (default true)
  -pred              <int>        E..V..... Prediction method (from 0 to 2) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....
  -context           <int>        E..V..... Set per-frame huffman tables (from 0 to 1) (default 0)

flv encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

GIF encoder AVOptions:
  -gifflags          <flags>      E..V..... set GIF flags (default offsetting+transdiff)
     offsetting                   E..V..... enable picture offsetting
     transdiff                    E..V..... enable transparency detection between frames

h261 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

H.263 encoder AVOptions:
  -obmc              <boolean>    E..V..... use overlapped block motion compensation. (default false)
  -mb_info           <int>        E..V..... emit macroblock info for RFC 2190 packetization, the parameter value is the maximum payload size (from 0 to INT_MAX) (default 0)
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

H.263p encoder AVOptions:
  -umv               <boolean>    E..V..... Use unlimited motion vectors. (default false)
  -aiv               <boolean>    E..V..... Use alternative inter VLC. (default false)
  -obmc              <boolean>    E..V..... use overlapped block motion compensation. (default false)
  -structured_slices <boolean>    E..V..... Write slice start position at every GOB header instead of just GOB number. (default false)
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

huffyuv AVOptions:
  -non_deterministic <boolean>    E..V..... Allow multithreading for e.g. context=1 at the expense of determinism (default true)
  -pred              <int>        E..V..... Prediction method (from 0 to 2) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....

jpeg 2000 encoder AVOptions:
  -format            <int>        E..V..... Codec Format (from 0 to 1) (default jp2)
     j2k                          E..V.....
     jp2                          E..V.....
  -tile_width        <int>        E..V..... Tile Width (from 1 to 1.07374e+009) (default 256)
  -tile_height       <int>        E..V..... Tile Height (from 1 to 1.07374e+009) (default 256)
  -pred              <int>        E..V..... DWT Type (from 0 to 1) (default dwt97int)
     dwt97int                     E..V.....
     dwt53                        E..V.....

jpegls AVOptions:
  -pred              <int>        E..V..... Prediction method (from 0 to 2) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....

ljpeg AVOptions:
  -pred              <int>        E..V..... Prediction method (from 1 to 3) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....

magicyuv AVOptions:
  -pred              <int>        E..V..... Prediction method (from 1 to 3) (default left)
     left                         E..V.....
     gradient                     E..V.....
     median                       E..V.....

mjpeg encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)
  -pred              <int>        E..V..... Prediction method (from 1 to 3) (default left)
     left                         E..V.....
     plane                        E..V.....
     median                       E..V.....
  -huffman           <int>        E..V..... Huffman table strategy (from 0 to 1) (default optimal)
     default                      E..V.....
     optimal                      E..V.....

mpeg1video encoder AVOptions:
  -gop_timecode      <string>     E..V..... MPEG GOP Timecode in hh:mm:ss[:;.]ff format. Overrides timecode_frame_start.
  -intra_vlc         <boolean>    E..V..... Use MPEG-2 intra VLC table. (default false)
  -drop_frame_timecode <boolean>    E..V..... Timecode is in drop frame format. (default false)
  -scan_offset       <boolean>    E..V..... Reserve space for SVCD scan offset user data. (default false)
  -timecode_frame_start <int64>      E..V..... GOP timecode frame start number, in non-drop-frame format (from -1 to I64_MAX) (default -1)
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

mpeg2video encoder AVOptions:
  -gop_timecode      <string>     E..V..... MPEG GOP Timecode in hh:mm:ss[:;.]ff format. Overrides timecode_frame_start.
  -intra_vlc         <boolean>    E..V..... Use MPEG-2 intra VLC table. (default false)
  -drop_frame_timecode <boolean>    E..V..... Timecode is in drop frame format. (default false)
  -scan_offset       <boolean>    E..V..... Reserve space for SVCD scan offset user data. (default false)
  -timecode_frame_start <int64>      E..V..... GOP timecode frame start number, in non-drop-frame format (from -1 to I64_MAX) (default -1)
  -non_linear_quant  <boolean>    E..V..... Use nonlinear quantizer. (default false)
  -alternate_scan    <boolean>    E..V..... Enable alternate scantable. (default false)
  -seq_disp_ext      <int>        E..V..... Write sequence_display_extension blocks. (from -1 to 1) (default auto)
     auto                         E..V.....
     never                        E..V.....
     always                       E..V.....
  -video_format      <int>        E..V..... Video_format in the sequence_display_extension indicating the source of the video. (from 0 to 7) (default unspecified)
     component                    E..V.....
     pal                          E..V.....
     ntsc                         E..V.....
     secam                        E..V.....
     mac                          E..V.....
     unspecified                  E..V.....
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

MPEG4 encoder AVOptions:
  -data_partitioning <boolean>    E..V..... Use data partitioning. (default false)
  -alternate_scan    <boolean>    E..V..... Enable alternate scantable. (default false)
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

msmpeg4v2 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

msmpeg4v3 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

PNG encoder AVOptions:
  -dpi               <int>        E..V..... Set image resolution (in dots per inch) (from 0 to 65536) (default 0)
  -dpm               <int>        E..V..... Set image resolution (in dots per meter) (from 0 to 65536) (default 0)
  -pred              <int>        E..V..... Prediction method (from 0 to 5) (default none)
     none                         E..V.....
     sub                          E..V.....
     up                           E..V.....
     avg                          E..V.....
     paeth                        E..V.....
     mixed                        E..V.....

ProRes encoder AVOptions:
  -mbs_per_slice     <int>        E..V..... macroblocks per slice (from 1 to 8) (default 8)
  -profile           <int>        E..V..... (from -1 to 5) (default auto)
     auto                         E..V.....
     proxy                        E..V.....
     lt                           E..V.....
     standard                     E..V.....
     hq                           E..V.....
     4444                         E..V.....
     4444xq                       E..V.....
  -vendor            <string>     E..V..... vendor ID (default "Lavc")
  -bits_per_mb       <int>        E..V..... desired bits per macroblock (from 0 to 8192) (default 0)
  -quant_mat         <int>        E..V..... quantiser matrix (from -1 to 4) (default auto)
     auto                         E..V.....
     proxy                        E..V.....
     lt                           E..V.....
     standard                     E..V.....
     hq                           E..V.....
     default                      E..V.....
  -alpha_bits        <int>        E..V..... bits for alpha plane (from 0 to 16) (default 16)

RoQ AVOptions:
  -quake3_compat     <boolean>    E..V..... Whether to respect known limitations in Quake 3 decoder (default true)

rv10 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

rv20 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

sgi AVOptions:
  -rle               <int>        E..V..... Use run-length compression (from 0 to 1) (default 1)

snow encoder AVOptions:
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 3) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
     iter                         E..V.....
  -memc_only         <boolean>    E..V..... Only do ME/MC (I frames -> ref, P frame -> ME+MC). (default false)
  -no_bitstream      <boolean>    E..V..... Skip final bitstream writeout. (default false)
  -intra_penalty     <int>        E..V..... Penalty for intra blocks in block decission (from 0 to INT_MAX) (default 0)
  -iterative_dia_size <int>        E..V..... Dia size for the iterative ME (from 0 to INT_MAX) (default 0)
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -pred              <int>        E..V..... Spatial decomposition type (from 0 to 1) (default dwt97)
     dwt97                        E..V.....
     dwt53                        E..V.....

sunrast AVOptions:
  -rle               <int>        E..V..... Use run-length compression (from 0 to 1) (default 1)

svq1enc AVOptions:
  -motion-est        <int>        E..V..... Motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....

targa AVOptions:
  -rle               <int>        E..V..... Use run-length compression (from 0 to 1) (default 1)

TIFF encoder AVOptions:
  -dpi               <int>        E..V..... set the image resolution (in dpi) (from 1 to 65536) (default 72)
  -compression_algo  <int>        E..V..... (from 1 to 32946) (default packbits)
     packbits                     E..V.....
     raw                          E..V.....
     lzw                          E..V.....
     deflate                      E..V.....

utvideo AVOptions:
  -pred              <int>        E..V..... Prediction method (from 0 to 3) (default left)
     none                         E..V.....
     left                         E..V.....
     gradient                     E..V.....
     median                       E..V.....

SMPTE VC-2 encoder AVOptions:
  -tolerance         <double>     E..V..... Max undershoot in percent (from 0 to 45) (default 5)
  -slice_width       <int>        E..V..... Slice width (from 32 to 1024) (default 32)
  -slice_height      <int>        E..V..... Slice height (from 8 to 1024) (default 16)
  -wavelet_depth     <int>        E..V..... Transform depth (from 1 to 5) (default 4)
  -wavelet_type      <int>        E..V..... Transform type (from 0 to 7) (default 9_7)
     9_7                          E..V..... Deslauriers-Dubuc (9,7)
     5_3                          E..V..... LeGall (5,3)
     haar                         E..V..... Haar (with shift)
     haar_noshift                 E..V..... Haar (without shift)
  -qm                <int>        E..V..... Custom quantization matrix (from 0 to 3) (default default)
     default                      E..V..... Default from the specifications
     color                        E..V..... Prevents low bitrate discoloration
     flat                         E..V..... Optimize for PSNR

wmv1 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

wmv2 encoder AVOptions:
  -mpv_flags         <flags>      E..V..... Flags common for all mpegvideo-based encoders. (default 0)
     skip_rd                      E..V..... RD optimal MB level residual skipping
     strict_gop                   E..V..... Strictly enforce gop size
     qp_rd                        E..V..... Use rate distortion optimization for qp selection
     cbp_rd                       E..V..... use rate distortion optimization for CBP
     naq                          E..V..... normalize adaptive quantization
     mv0                          E..V..... always try a mb with mv=<0,0>
  -luma_elim_threshold <int>        E..V..... single coefficient elimination threshold for luminance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -chroma_elim_threshold <int>        E..V..... single coefficient elimination threshold for chrominance (negative values also consider dc coefficient) (from INT_MIN to INT_MAX) (default 0)
  -quantizer_noise_shaping <int>        E..V..... (from 0 to INT_MAX) (default 0)
  -error_rate        <int>        E..V..... Simulate errors in the bitstream to test error concealment. (from 0 to INT_MAX) (default 0)
  -qsquish           <float>      E..V..... how to keep quantizer between qmin and qmax (0 = clip, 1 = use differentiable function) (from 0 to 99) (default 0)
  -rc_qmod_amp       <float>      E..V..... experimental quantizer modulation (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_qmod_freq      <int>        E..V..... experimental quantizer modulation (from INT_MIN to INT_MAX) (default 0)
  -rc_eq             <string>     E..V..... Set rate control equation. When computing the expression, besides the standard functions defined in the section 'Expression Evaluation', the following functions are available: bits2qp(bits), qp2bits(qp). Also the following constants are available: iTex pTex tex mv fCode iCount mcVar var isI isP isB avgQP qComp avgIITex avgPITex avgPPTex avgBPTex avgTex.
  -rc_init_cplx      <float>      E..V..... initial complexity for 1-pass encoding (from -FLT_MAX to FLT_MAX) (default 0)
  -rc_buf_aggressivity <float>      E..V..... currently useless (from -FLT_MAX to FLT_MAX) (default 1)
  -border_mask       <float>      E..V..... increase the quantizer for macroblocks close to borders (from -FLT_MAX to FLT_MAX) (default 0)
  -lmin              <int>        E..V..... minimum Lagrange factor (VBR) (from 0 to INT_MAX) (default 236)
  -lmax              <int>        E..V..... maximum Lagrange factor (VBR) (from 0 to INT_MAX) (default 3658)
  -ibias             <int>        E..V..... intra quant bias (from INT_MIN to INT_MAX) (default 999999)
  -pbias             <int>        E..V..... inter quant bias (from INT_MIN to INT_MAX) (default 999999)
  -rc_strategy       <int>        E..V..... ratecontrol method (from 0 to 1) (default ffmpeg)
     ffmpeg                       E..V..... default native rate control
     xvid                         E..V..... libxvid (2 pass only)
  -motion_est        <int>        E..V..... motion estimation algorithm (from 0 to 2) (default epzs)
     zero                         E..V.....
     epzs                         E..V.....
     xone                         E..V.....
  -force_duplicated_matrix <boolean>    E..V..... Always write luma and chroma matrix for mjpeg, useful for rtp streaming. (default false)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -b_sensitivity     <int>        E..V..... Adjust sensitivity of b_frame_strategy 1 (from 1 to INT_MAX) (default 40)
  -brd_scale         <int>        E..V..... Downscale frames for dynamic B-frame decision (from 0 to 3) (default 0)
  -skip_threshold    <int>        E..V..... Frame skip threshold (from INT_MIN to INT_MAX) (default 0)
  -skip_factor       <int>        E..V..... Frame skip factor (from INT_MIN to INT_MAX) (default 0)
  -skip_exp          <int>        E..V..... Frame skip exponent (from INT_MIN to INT_MAX) (default 0)
  -skip_cmp          <int>        E..V..... Frame skip compare function (from INT_MIN to INT_MAX) (default dctmax)
     sad                          E..V..... Sum of absolute differences, fast
     sse                          E..V..... Sum of squared errors
     satd                         E..V..... Sum of absolute Hadamard transformed differences
     dct                          E..V..... Sum of absolute DCT transformed differences
     psnr                         E..V..... Sum of squared quantization errors, low quality
     bit                          E..V..... Number of bits needed for the block
     rd                           E..V..... Rate distortion optimal, slow
     zero                         E..V..... Zero
     vsad                         E..V..... Sum of absolute vertical differences
     vsse                         E..V..... Sum of squared vertical differences
     nsse                         E..V..... Noise preserving sum of squared differences
     dct264                       E..V.....
     dctmax                       E..V.....
     chroma                       E..V.....
     msad                         E..V..... Sum of absolute differences, median predicted
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default 0)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)
  -ps                <int>        E..V..... RTP payload size in bytes (from INT_MIN to INT_MAX) (default 0)
  -mepc              <int>        E..V..... Motion estimation bitrate penalty compensation (1.0 = 256) (from INT_MIN to INT_MAX) (default 256)
  -mepre             <int>        E..V..... pre motion estimation (from INT_MIN to INT_MAX) (default 0)

AAC encoder AVOptions:
  -aac_coder         <int>        E...A.... Coding algorithm (from 0 to 2) (default fast)
     anmr                         E...A.... ANMR method
     twoloop                      E...A.... Two loop searching method
     fast                         E...A.... Default fast search
  -aac_ms            <boolean>    E...A.... Force M/S stereo coding (default auto)
  -aac_is            <boolean>    E...A.... Intensity stereo coding (default true)
  -aac_pns           <boolean>    E...A.... Perceptual noise substitution (default true)
  -aac_tns           <boolean>    E...A.... Temporal noise shaping (default true)
  -aac_ltp           <boolean>    E...A.... Long term prediction (default false)
  -aac_pred          <boolean>    E...A.... AAC-Main prediction (default false)
  -aac_pce           <boolean>    E...A.... Forces the use of PCEs (default false)

AC-3 Encoder AVOptions:
  -per_frame_metadata <boolean>    E...A.... Allow Changing Metadata Per-Frame (default false)
  -center_mixlev     <float>      E...A.... Center Mix Level (from 0 to 1) (default 0.594604)
  -surround_mixlev   <float>      E...A.... Surround Mix Level (from 0 to 1) (default 0.5)
  -mixing_level      <int>        E...A.... Mixing Level (from -1 to 111) (default -1)
  -room_type         <int>        E...A.... Room Type (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     large                        E...A.... Large Room
     small                        E...A.... Small Room
  -copyright         <int>        E...A.... Copyright Bit (from -1 to 1) (default -1)
  -dialnorm          <int>        E...A.... Dialogue Level (dB) (from -31 to -1) (default -31)
  -dsur_mode         <int>        E...A.... Dolby Surround Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround Encoded
     off                          E...A.... Not Dolby Surround Encoded
  -original          <int>        E...A.... Original Bit Stream (from -1 to 1) (default -1)
  -dmix_mode         <int>        E...A.... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     ltrt                         E...A.... Lt/Rt Downmix Preferred
     loro                         E...A.... Lo/Ro Downmix Preferred
     dplii                        E...A.... Dolby Pro Logic II Downmix Preferred
  -ltrt_cmixlev      <float>      E...A.... Lt/Rt Center Mix Level (from -1 to 2) (default -1)
  -ltrt_surmixlev    <float>      E...A.... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)
  -loro_cmixlev      <float>      E...A.... Lo/Ro Center Mix Level (from -1 to 2) (default -1)
  -loro_surmixlev    <float>      E...A.... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)
  -dsurex_mode       <int>        E...A.... Dolby Surround EX Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround EX Encoded
     off                          E...A.... Not Dolby Surround EX Encoded
     dpliiz                       E...A.... Dolby Pro Logic IIz-encoded
  -dheadphone_mode   <int>        E...A.... Dolby Headphone Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Headphone Encoded
     off                          E...A.... Not Dolby Headphone Encoded
  -ad_conv_type      <int>        E...A.... A/D Converter Type (from -1 to 1) (default -1)
     standard                     E...A.... Standard (default)
     hdcd                         E...A.... HDCD
  -stereo_rematrixing <boolean>    E...A.... Stereo Rematrixing (default true)
  -channel_coupling  <int>        E...A.... Channel Coupling (from -1 to 1) (default auto)
     auto                         E...A.... Selected by the Encoder
  -cpl_start_band    <int>        E...A.... Coupling Start Band (from -1 to 15) (default auto)
     auto                         E...A.... Selected by the Encoder

Fixed-Point AC-3 Encoder AVOptions:
  -per_frame_metadata <boolean>    E...A.... Allow Changing Metadata Per-Frame (default false)
  -center_mixlev     <float>      E...A.... Center Mix Level (from 0 to 1) (default 0.594604)
  -surround_mixlev   <float>      E...A.... Surround Mix Level (from 0 to 1) (default 0.5)
  -mixing_level      <int>        E...A.... Mixing Level (from -1 to 111) (default -1)
  -room_type         <int>        E...A.... Room Type (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     large                        E...A.... Large Room
     small                        E...A.... Small Room
  -copyright         <int>        E...A.... Copyright Bit (from -1 to 1) (default -1)
  -dialnorm          <int>        E...A.... Dialogue Level (dB) (from -31 to -1) (default -31)
  -dsur_mode         <int>        E...A.... Dolby Surround Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround Encoded
     off                          E...A.... Not Dolby Surround Encoded
  -original          <int>        E...A.... Original Bit Stream (from -1 to 1) (default -1)
  -dmix_mode         <int>        E...A.... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     ltrt                         E...A.... Lt/Rt Downmix Preferred
     loro                         E...A.... Lo/Ro Downmix Preferred
     dplii                        E...A.... Dolby Pro Logic II Downmix Preferred
  -ltrt_cmixlev      <float>      E...A.... Lt/Rt Center Mix Level (from -1 to 2) (default -1)
  -ltrt_surmixlev    <float>      E...A.... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)
  -loro_cmixlev      <float>      E...A.... Lo/Ro Center Mix Level (from -1 to 2) (default -1)
  -loro_surmixlev    <float>      E...A.... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)
  -dsurex_mode       <int>        E...A.... Dolby Surround EX Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround EX Encoded
     off                          E...A.... Not Dolby Surround EX Encoded
     dpliiz                       E...A.... Dolby Pro Logic IIz-encoded
  -dheadphone_mode   <int>        E...A.... Dolby Headphone Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Headphone Encoded
     off                          E...A.... Not Dolby Headphone Encoded
  -ad_conv_type      <int>        E...A.... A/D Converter Type (from -1 to 1) (default -1)
     standard                     E...A.... Standard (default)
     hdcd                         E...A.... HDCD
  -stereo_rematrixing <boolean>    E...A.... Stereo Rematrixing (default true)
  -channel_coupling  <int>        E...A.... Channel Coupling (from -1 to 1) (default auto)
     auto                         E...A.... Selected by the Encoder
  -cpl_start_band    <int>        E...A.... Coupling Start Band (from -1 to 15) (default auto)
     auto                         E...A.... Selected by the Encoder

alacenc AVOptions:
  -min_prediction_order <int>        E...A.... (from 1 to 30) (default 4)
  -max_prediction_order <int>        E...A.... (from 1 to 30) (default 6)

DCA (DTS Coherent Acoustics) AVOptions:
  -dca_adpcm         <boolean>    E...A.... Use ADPCM encoding (default false)

E-AC-3 Encoder AVOptions:
  -per_frame_metadata <boolean>    E...A.... Allow Changing Metadata Per-Frame (default false)
  -mixing_level      <int>        E...A.... Mixing Level (from -1 to 111) (default -1)
  -room_type         <int>        E...A.... Room Type (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     large                        E...A.... Large Room
     small                        E...A.... Small Room
  -copyright         <int>        E...A.... Copyright Bit (from -1 to 1) (default -1)
  -dialnorm          <int>        E...A.... Dialogue Level (dB) (from -31 to -1) (default -31)
  -dsur_mode         <int>        E...A.... Dolby Surround Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround Encoded
     off                          E...A.... Not Dolby Surround Encoded
  -original          <int>        E...A.... Original Bit Stream (from -1 to 1) (default -1)
  -dmix_mode         <int>        E...A.... Preferred Stereo Downmix Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     ltrt                         E...A.... Lt/Rt Downmix Preferred
     loro                         E...A.... Lo/Ro Downmix Preferred
     dplii                        E...A.... Dolby Pro Logic II Downmix Preferred
  -ltrt_cmixlev      <float>      E...A.... Lt/Rt Center Mix Level (from -1 to 2) (default -1)
  -ltrt_surmixlev    <float>      E...A.... Lt/Rt Surround Mix Level (from -1 to 2) (default -1)
  -loro_cmixlev      <float>      E...A.... Lo/Ro Center Mix Level (from -1 to 2) (default -1)
  -loro_surmixlev    <float>      E...A.... Lo/Ro Surround Mix Level (from -1 to 2) (default -1)
  -dsurex_mode       <int>        E...A.... Dolby Surround EX Mode (from -1 to 3) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Surround EX Encoded
     off                          E...A.... Not Dolby Surround EX Encoded
     dpliiz                       E...A.... Dolby Pro Logic IIz-encoded
  -dheadphone_mode   <int>        E...A.... Dolby Headphone Mode (from -1 to 2) (default -1)
     notindicated                 E...A.... Not Indicated (default)
     on                           E...A.... Dolby Headphone Encoded
     off                          E...A.... Not Dolby Headphone Encoded
  -ad_conv_type      <int>        E...A.... A/D Converter Type (from -1 to 1) (default -1)
     standard                     E...A.... Standard (default)
     hdcd                         E...A.... HDCD
  -stereo_rematrixing <boolean>    E...A.... Stereo Rematrixing (default true)
  -channel_coupling  <int>        E...A.... Channel Coupling (from -1 to 1) (default auto)
     auto                         E...A.... Selected by the Encoder
  -cpl_start_band    <int>        E...A.... Coupling Start Band (from -1 to 15) (default auto)
     auto                         E...A.... Selected by the Encoder

FLAC encoder AVOptions:
  -lpc_coeff_precision <int>        E...A.... LPC coefficient precision (from 0 to 15) (default 15)
  -lpc_type          <int>        E...A.... LPC algorithm (from -1 to 3) (default -1)
     none                         E...A....
     fixed                        E...A....
     levinson                     E...A....
     cholesky                     E...A....
  -lpc_passes        <int>        E...A.... Number of passes to use for Cholesky factorization during LPC analysis (from 1 to INT_MAX) (default 2)
  -min_partition_order <int>        E...A.... (from -1 to 8) (default -1)
  -max_partition_order <int>        E...A.... (from -1 to 8) (default -1)
  -prediction_order_method <int>        E...A.... Search method for selecting prediction order (from -1 to 5) (default -1)
     estimation                   E...A....
     2level                       E...A....
     4level                       E...A....
     8level                       E...A....
     search                       E...A....
     log                          E...A....
  -ch_mode           <int>        E...A.... Stereo decorrelation mode (from -1 to 3) (default auto)
     auto                         E...A....
     indep                        E...A....
     left_side                    E...A....
     right_side                   E...A....
     mid_side                     E...A....
  -exact_rice_parameters <boolean>    E...A.... Calculate rice parameters exactly (default false)
  -multi_dim_quant   <boolean>    E...A.... Multi-dimensional quantization (default false)
  -min_prediction_order <int>        E...A.... (from -1 to 32) (default -1)
  -max_prediction_order <int>        E...A.... (from -1 to 32) (default -1)

Opus encoder AVOptions:
  -opus_delay        <float>      E...A.... Maximum delay in milliseconds (from 2.5 to 360) (default 360)

sbc encoder AVOptions:
  -sbc_delay         <duration>   E...A.... set maximum algorithmic latency (default 0.013)
  -msbc              <boolean>    E...A.... use mSBC mode (wideband speech mono SBC) (default false)

WavPack encoder AVOptions:
  -joint_stereo      <boolean>    E...A....  (default auto)
  -optimize_mono     <boolean>    E...A....  (default false)

g726 AVOptions:
  -code_size         <int>        E...A.... Bits per code (from 2 to 5) (default 4)

g726le AVOptions:
  -code_size         <int>        E...A.... Bits per code (from 2 to 5) (default 4)

VOBSUB subtitle encoder AVOptions:
  -even_rows_fix     <boolean>    E....S... Make number of rows even (workaround for some players) (default false)

libfdk_aac AVOptions:
  -afterburner       <int>        E...A.... Afterburner (improved quality) (from 0 to 1) (default 1)
  -eld_sbr           <int>        E...A.... Enable SBR for ELD (for SBR in other configurations, use the -profile parameter) (from 0 to 1) (default 0)
  -signaling         <int>        E...A.... SBR/PS signaling style (from -1 to 2) (default default)
     default                      E...A.... Choose signaling implicitly (explicit hierarchical by default, implicit if global header is disabled)
     implicit                     E...A.... Implicit backwards compatible signaling
     explicit_sbr                 E...A.... Explicit SBR, implicit PS signaling
     explicit_hierarchical              E...A.... Explicit hierarchical signaling
  -latm              <int>        E...A.... Output LATM/LOAS encapsulated data (from 0 to 1) (default 0)
  -header_period     <int>        E...A.... StreamMuxConfig and PCE repetition period (in frames) (from 0 to 65535) (default 0)
  -vbr               <int>        E...A.... VBR mode (1-5) (from 0 to 5) (default 0)

libmp3lame encoder AVOptions:
  -reservoir         <boolean>    E...A.... use bit reservoir (default true)
  -lamebtmode        <int>        E...A.... Set bitrate mode (from -1 to 5) (default auto)
     auto                         E...A....
     cbr                          E...A....
     abr                          E...A....
     vbr(rh)                      E...A....
     vbr(mt)                      E...A....
     vbr(mtrh)                    E...A....
     vbr(default)                 E...A....
  -lamechmode        <int>        E...A.... Set channel mode (from -1 to 3) (default auto)
     auto                         E...A....
     stereo                       E...A....
     joint_stereo                 E...A....
     dual_channel                 E...A....
     mono                         E...A....

libopencore_amrnb AVOptions:
  -dtx               <int>        E...A.... Allow DTX (generate comfort noise) (from 0 to 1) (default 0)

libopenjpeg AVOptions:
  -format            <int>        E..V..... Codec Format (from 0 to 2) (default jp2)
     j2k                          E..V.....
     jp2                          E..V.....
  -profile           <int>        E..V..... (from 0 to 4) (default jpeg2000)
     jpeg2000                     E..V.....
     cinema2k                     E..V.....
     cinema4k                     E..V.....
  -cinema_mode       <int>        E..V..... Digital Cinema (from 0 to 3) (default off)
     off                          E..V.....
     2k_24                        E..V.....
     2k_48                        E..V.....
     4k_24                        E..V.....
  -prog_order        <int>        E..V..... Progression Order (from 0 to 4) (default lrcp)
     lrcp                         E..V.....
     rlcp                         E..V.....
     rpcl                         E..V.....
     pcrl                         E..V.....
     cprl                         E..V.....
  -numresolution     <int>        E..V..... (from 0 to 33) (default 6)
  -irreversible      <int>        E..V..... (from 0 to 1) (default 0)
  -disto_alloc       <int>        E..V..... (from 0 to 1) (default 1)
  -fixed_quality     <int>        E..V..... (from 0 to 1) (default 0)

libopus AVOptions:
  -application       <int>        E...A.... Intended application type (from 2048 to 2051) (default audio)
     voip                         E...A.... Favor improved speech intelligibility
     audio                        E...A.... Favor faithfulness to the input
     lowdelay                     E...A.... Restrict to only the lowest delay modes
  -frame_duration    <float>      E...A.... Duration of a frame in milliseconds (from 2.5 to 60) (default 20)
  -packet_loss       <int>        E...A.... Expected packet loss percentage (from 0 to 100) (default 0)
  -vbr               <int>        E...A.... Variable bit rate mode (from 0 to 2) (default on)
     off                          E...A.... Use constant bit rate
     on                           E...A.... Use variable bit rate
     constrained                  E...A.... Use constrained VBR
  -mapping_family    <int>        E...A.... Channel Mapping Family (from -1 to 255) (default -1)
  -apply_phase_inv   <boolean>    E...A.... Apply intensity stereo phase inversion (default true)

libspeex AVOptions:
  -abr               <int>        E...A.... Use average bit rate (from 0 to 1) (default 0)
  -cbr_quality       <int>        E...A.... Set quality value (0 to 10) for CBR (from 0 to 10) (default 8)
  -frames_per_packet <int>        E...A.... Number of frames to encode in each packet (from 1 to 8) (default 1)
  -vad               <int>        E...A.... Voice Activity Detection (from 0 to 1) (default 0)
  -dtx               <int>        E...A.... Discontinuous Transmission (from 0 to 1) (default 0)

libtwolame encoder AVOptions:
  -mode              <int>        E...A.... Mpeg Mode (from -1 to 3) (default auto)
     auto                         E...A....
     stereo                       E...A....
     joint_stereo                 E...A....
     dual_channel                 E...A....
     mono                         E...A....
  -psymodel          <int>        E...A.... Psychoacoustic Model (from -1 to 4) (default 3)
  -energy_levels     <int>        E...A.... enable energy levels (from 0 to 1) (default 0)
  -error_protection  <int>        E...A.... enable CRC error protection (from 0 to 1) (default 0)
  -copyright         <int>        E...A.... set MPEG Audio Copyright flag (from 0 to 1) (default 0)
  -original          <int>        E...A.... set MPEG Audio Original flag (from 0 to 1) (default 0)
  -verbosity         <int>        E...A.... set library optput level (0-10) (from 0 to 10) (default 0)

libvo_amrwbenc AVOptions:
  -dtx               <int>        E...A.... Allow DTX (generate comfort noise) (from 0 to 1) (default 0)

libvorbis AVOptions:
  -iblock            <double>     E...A.... Sets the impulse block bias (from -15 to 0) (default 0)

libvpx-vp8 encoder AVOptions:
  -auto-alt-ref      <int>        E..V..... Enable use of alternate reference frames (2-pass only) (from -1 to 2) (default -1)
  -lag-in-frames     <int>        E..V..... Number of frames to look ahead for alternate reference frame selection (from -1 to INT_MAX) (default -1)
  -arnr-maxframes    <int>        E..V..... altref noise reduction max frame count (from -1 to INT_MAX) (default -1)
  -arnr-strength     <int>        E..V..... altref noise reduction filter strength (from -1 to INT_MAX) (default -1)
  -arnr-type         <int>        E..V..... altref noise reduction filter type (from -1 to INT_MAX) (default -1)
     backward                     E..V.....
     forward                      E..V.....
     centered                     E..V.....
  -tune              <int>        E..V..... Tune the encoding to a specific scenario (from -1 to INT_MAX) (default -1)
     psnr                         E..V.....
     ssim                         E..V.....
  -deadline          <int>        E..V..... Time to spend encoding, in microseconds. (from INT_MIN to INT_MAX) (default good)
     best                         E..V.....
     good                         E..V.....
     realtime                     E..V.....
  -error-resilient   <flags>      E..V..... Error resilience configuration (default 0)
     default                      E..V..... Improve resiliency against losses of whole frames
     partitions                   E..V..... The frame partitions are independently decodable by the bool decoder, meaning that partitions can be decoded even though earlier partitions have been lost. Note that intra predicition is still done over the partition boundary.
  -max-intra-rate    <int>        E..V..... Maximum I-frame bitrate (pct) 0=unlimited (from -1 to INT_MAX) (default -1)
  -crf               <int>        E..V..... Select the quality for constant quality mode (from -1 to 63) (default -1)
  -static-thresh     <int>        E..V..... A change threshold on blocks below which they will be skipped by the encoder (from 0 to INT_MAX) (default 0)
  -drop-threshold    <int>        E..V..... Frame drop threshold (from INT_MIN to INT_MAX) (default 0)
  -noise-sensitivity <int>        E..V..... Noise sensitivity (from 0 to 4) (default 0)
  -undershoot-pct    <int>        E..V..... Datarate undershoot (min) target (%) (from -1 to 100) (default -1)
  -overshoot-pct     <int>        E..V..... Datarate overshoot (max) target (%) (from -1 to 1000) (default -1)
  -cpu-used          <int>        E..V..... Quality/Speed ratio modifier (from -16 to 16) (default 1)
  -speed             <int>        E..V.....  (from -16 to 16) (default 1)
  -quality           <int>        E..V.....  (from INT_MIN to INT_MAX) (default good)
     best                         E..V.....
     good                         E..V.....
     realtime                     E..V.....
  -vp8flags          <flags>      E..V.....  (default 0)
     error_resilient              E..V..... enable error resilience
     altref                       E..V..... enable use of alternate reference frames (VP8/2-pass only)
  -arnr_max_frames   <int>        E..V..... altref noise reduction max frame count (from 0 to 15) (default 0)
  -arnr_strength     <int>        E..V..... altref noise reduction filter strength (from 0 to 6) (default 3)
  -arnr_type         <int>        E..V..... altref noise reduction filter type (from 1 to 3) (default 3)
  -rc_lookahead      <int>        E..V..... Number of frames to look ahead for alternate reference frame selection (from 0 to 25) (default 25)

libvpx-vp9 encoder AVOptions:
  -auto-alt-ref      <int>        E..V..... Enable use of alternate reference frames (2-pass only) (from -1 to 2) (default -1)
  -lag-in-frames     <int>        E..V..... Number of frames to look ahead for alternate reference frame selection (from -1 to INT_MAX) (default -1)
  -arnr-maxframes    <int>        E..V..... altref noise reduction max frame count (from -1 to INT_MAX) (default -1)
  -arnr-strength     <int>        E..V..... altref noise reduction filter strength (from -1 to INT_MAX) (default -1)
  -arnr-type         <int>        E..V..... altref noise reduction filter type (from -1 to INT_MAX) (default -1)
     backward                     E..V.....
     forward                      E..V.....
     centered                     E..V.....
  -tune              <int>        E..V..... Tune the encoding to a specific scenario (from -1 to INT_MAX) (default -1)
     psnr                         E..V.....
     ssim                         E..V.....
  -deadline          <int>        E..V..... Time to spend encoding, in microseconds. (from INT_MIN to INT_MAX) (default good)
     best                         E..V.....
     good                         E..V.....
     realtime                     E..V.....
  -error-resilient   <flags>      E..V..... Error resilience configuration (default 0)
     default                      E..V..... Improve resiliency against losses of whole frames
     partitions                   E..V..... The frame partitions are independently decodable by the bool decoder, meaning that partitions can be decoded even though earlier partitions have been lost. Note that intra predicition is still done over the partition boundary.
  -max-intra-rate    <int>        E..V..... Maximum I-frame bitrate (pct) 0=unlimited (from -1 to INT_MAX) (default -1)
  -crf               <int>        E..V..... Select the quality for constant quality mode (from -1 to 63) (default -1)
  -static-thresh     <int>        E..V..... A change threshold on blocks below which they will be skipped by the encoder (from 0 to INT_MAX) (default 0)
  -drop-threshold    <int>        E..V..... Frame drop threshold (from INT_MIN to INT_MAX) (default 0)
  -noise-sensitivity <int>        E..V..... Noise sensitivity (from 0 to 4) (default 0)
  -undershoot-pct    <int>        E..V..... Datarate undershoot (min) target (%) (from -1 to 100) (default -1)
  -overshoot-pct     <int>        E..V..... Datarate overshoot (max) target (%) (from -1 to 1000) (default -1)
  -cpu-used          <int>        E..V..... Quality/Speed ratio modifier (from -8 to 8) (default 1)
  -lossless          <int>        E..V..... Lossless mode (from -1 to 1) (default -1)
  -tile-columns      <int>        E..V..... Number of tile columns to use, log2 (from -1 to 6) (default -1)
  -tile-rows         <int>        E..V..... Number of tile rows to use, log2 (from -1 to 2) (default -1)
  -frame-parallel    <boolean>    E..V..... Enable frame parallel decodability features (default auto)
  -aq-mode           <int>        E..V..... adaptive quantization mode (from -1 to 4) (default -1)
     none                         E..V..... Aq not used
     variance                     E..V..... Variance based Aq
     complexity                   E..V..... Complexity based Aq
     cyclic                       E..V..... Cyclic Refresh Aq
     equator360                   E..V..... 360 video Aq
  -level             <float>      E..V..... Specify level (from -1 to 6.2) (default -1)
  -tune-content      <int>        E..V..... Tune content type (from -1 to 1) (default -1)
     default                      E..V..... Regular video content
     screen                       E..V..... Screen capture content
  -speed             <int>        E..V.....  (from -16 to 16) (default 1)
  -quality           <int>        E..V.....  (from INT_MIN to INT_MAX) (default good)
     best                         E..V.....
     good                         E..V.....
     realtime                     E..V.....
  -vp8flags          <flags>      E..V.....  (default 0)
     error_resilient              E..V..... enable error resilience
     altref                       E..V..... enable use of alternate reference frames (VP8/2-pass only)
  -arnr_max_frames   <int>        E..V..... altref noise reduction max frame count (from 0 to 15) (default 0)
  -arnr_strength     <int>        E..V..... altref noise reduction filter strength (from 0 to 6) (default 3)
  -arnr_type         <int>        E..V..... altref noise reduction filter type (from 1 to 3) (default 3)
  -rc_lookahead      <int>        E..V..... Number of frames to look ahead for alternate reference frame selection (from 0 to 25) (default 25)

libwebp AVOptions:
  -lossless          <int>        E..V..... Use lossless mode (from 0 to 1) (default 0)
  -preset            <int>        E..V..... Configuration preset (from -1 to 5) (default none)
     none                         E..V..... do not use a preset
     default                      E..V..... default preset
     picture                      E..V..... digital picture, like portrait, inner shot
     photo                        E..V..... outdoor photograph, with natural lighting
     drawing                      E..V..... hand or line drawing, with high-contrast details
     icon                         E..V..... small-sized colorful images
     text                         E..V..... text-like
  -cr_threshold      <int>        E..V..... Conditional replenishment threshold (from 0 to INT_MAX) (default 0)
  -cr_size           <int>        E..V..... Conditional replenishment block size (from 0 to 256) (default 16)
  -quality           <float>      E..V..... Quality (from 0 to 100) (default 75)

libx264 AVOptions:
  -preset            <string>     E..V..... Set the encoding preset (cf. x264 --fullhelp) (default "medium")
  -tune              <string>     E..V..... Tune the encoding params (cf. x264 --fullhelp)
  -profile           <string>     E..V..... Set profile restrictions (cf. x264 --fullhelp)
  -fastfirstpass     <boolean>    E..V..... Use fast settings when encoding first pass (default true)
  -level             <string>     E..V..... Specify level (as defined by Annex A)
  -passlogfile       <string>     E..V..... Filename for 2 pass stats
  -wpredp            <string>     E..V..... Weighted prediction for P-frames
  -a53cc             <boolean>    E..V..... Use A53 Closed Captions (if available) (default false)
  -x264opts          <string>     E..V..... x264 options
  -crf               <float>      E..V..... Select the quality for constant quality mode (from -1 to FLT_MAX) (default -1)
  -crf_max           <float>      E..V..... In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT_MAX) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to INT_MAX) (default -1)
  -aq-mode           <int>        E..V..... AQ method (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     variance                     E..V..... Variance AQ (complexity mask)
     autovariance                 E..V..... Auto-variance AQ
     autovariance-biased              E..V..... Auto-variance AQ with bias to dark scenes
  -aq-strength       <float>      E..V..... AQ strength. Reduces blocking and blurring in flat and textured areas. (from -1 to FLT_MAX) (default -1)
  -psy               <boolean>    E..V..... Use psychovisual optimizations. (default auto)
  -psy-rd            <string>     E..V..... Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for frametype and ratecontrol (from -1 to INT_MAX) (default -1)
  -weightb           <boolean>    E..V..... Weighted prediction for B-frames. (default auto)
  -weightp           <int>        E..V..... Weighted prediction analysis method. (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     simple                       E..V.....
     smart                        E..V.....
  -ssim              <boolean>    E..V..... Calculate and print SSIM stats. (default auto)
  -intra-refresh     <boolean>    E..V..... Use Periodic Intra Refresh instead of IDR frames. (default auto)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds. (default auto)
  -b-bias            <int>        E..V..... Influences how often B-frames are used (from INT_MIN to INT_MAX) (default INT_MIN)
  -b-pyramid         <int>        E..V..... Keep some B-frames as references. (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     strict                       E..V..... Strictly hierarchical pyramid
     normal                       E..V..... Non-strict (not Blu-ray compatible)
  -mixed-refs        <boolean>    E..V..... One reference per partition, as opposed to one reference per macroblock (default auto)
  -8x8dct            <boolean>    E..V..... High profile 8x8 transform. (default auto)
  -fast-pskip        <boolean>    E..V..... (default auto)
  -aud               <boolean>    E..V..... Use access unit delimiters. (default auto)
  -mbtree            <boolean>    E..V..... Use macroblock tree ratecontrol. (default auto)
  -deblock           <string>     E..V..... Loop filter parameters, in <alpha:beta> form.
  -cplxblur          <float>      E..V..... Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX) (default -1)
  -partitions        <string>     E..V..... A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all
  -direct-pred       <int>        E..V..... Direct MV prediction mode (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     spatial                      E..V.....
     temporal                     E..V.....
     auto                         E..V.....
  -slice-max-size    <int>        E..V..... Limit the size of each slice in bytes (from -1 to INT_MAX) (default -1)
  -stats             <string>     E..V..... Filename for 2 pass stats
  -nal-hrd           <int>        E..V..... Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     vbr                          E..V.....
     cbr                          E..V.....
  -avcintra-class    <int>        E..V..... AVC-Intra class 50/100/200 (from -1 to 200) (default -1)
  -me_method         <int>        E..V..... Set motion estimation method (from -1 to 4) (default -1)
     dia                          E..V.....
     hex                          E..V.....
     umh                          E..V.....
     esa                          E..V.....
     tesa                         E..V.....
  -motion-est        <int>        E..V..... Set motion estimation method (from -1 to 4) (default -1)
     dia                          E..V.....
     hex                          E..V.....
     umh                          E..V.....
     esa                          E..V.....
     tesa                         E..V.....
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -coder             <int>        E..V..... Coder type (from -1 to 1) (default default)
     default                      E..V.....
     cavlc                        E..V.....
     cabac                        E..V.....
     vlc                          E..V.....
     ac                           E..V.....
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from -1 to 2) (default -1)
  -chromaoffset      <int>        E..V..... QP difference between chroma and luma (from INT_MIN to INT_MAX) (default -1)
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default -1)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default -1)
  -x264-params       <string>     E..V..... Override the x264 configuration using a :-separated list of key=value parameters

libx264rgb AVOptions:
  -preset            <string>     E..V..... Set the encoding preset (cf. x264 --fullhelp) (default "medium")
  -tune              <string>     E..V..... Tune the encoding params (cf. x264 --fullhelp)
  -profile           <string>     E..V..... Set profile restrictions (cf. x264 --fullhelp)
  -fastfirstpass     <boolean>    E..V..... Use fast settings when encoding first pass (default true)
  -level             <string>     E..V..... Specify level (as defined by Annex A)
  -passlogfile       <string>     E..V..... Filename for 2 pass stats
  -wpredp            <string>     E..V..... Weighted prediction for P-frames
  -a53cc             <boolean>    E..V..... Use A53 Closed Captions (if available) (default false)
  -x264opts          <string>     E..V..... x264 options
  -crf               <float>      E..V..... Select the quality for constant quality mode (from -1 to FLT_MAX) (default -1)
  -crf_max           <float>      E..V..... In CRF mode, prevents VBV from lowering quality beyond this point. (from -1 to FLT_MAX) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to INT_MAX) (default -1)
  -aq-mode           <int>        E..V..... AQ method (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     variance                     E..V..... Variance AQ (complexity mask)
     autovariance                 E..V..... Auto-variance AQ
     autovariance-biased              E..V..... Auto-variance AQ with bias to dark scenes
  -aq-strength       <float>      E..V..... AQ strength. Reduces blocking and blurring in flat and textured areas. (from -1 to FLT_MAX) (default -1)
  -psy               <boolean>    E..V..... Use psychovisual optimizations. (default auto)
  -psy-rd            <string>     E..V..... Strength of psychovisual optimization, in <psy-rd>:<psy-trellis> format.
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for frametype and ratecontrol (from -1 to INT_MAX) (default -1)
  -weightb           <boolean>    E..V..... Weighted prediction for B-frames. (default auto)
  -weightp           <int>        E..V..... Weighted prediction analysis method. (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     simple                       E..V.....
     smart                        E..V.....
  -ssim              <boolean>    E..V..... Calculate and print SSIM stats. (default auto)
  -intra-refresh     <boolean>    E..V..... Use Periodic Intra Refresh instead of IDR frames. (default auto)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds. (default auto)
  -b-bias            <int>        E..V..... Influences how often B-frames are used (from INT_MIN to INT_MAX) (default INT_MIN)
  -b-pyramid         <int>        E..V..... Keep some B-frames as references. (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     strict                       E..V..... Strictly hierarchical pyramid
     normal                       E..V..... Non-strict (not Blu-ray compatible)
  -mixed-refs        <boolean>    E..V..... One reference per partition, as opposed to one reference per macroblock (default auto)
  -8x8dct            <boolean>    E..V..... High profile 8x8 transform. (default auto)
  -fast-pskip        <boolean>    E..V..... (default auto)
  -aud               <boolean>    E..V..... Use access unit delimiters. (default auto)
  -mbtree            <boolean>    E..V..... Use macroblock tree ratecontrol. (default auto)
  -deblock           <string>     E..V..... Loop filter parameters, in <alpha:beta> form.
  -cplxblur          <float>      E..V..... Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX) (default -1)
  -partitions        <string>     E..V..... A comma-separated list of partitions to consider. Possible values: p8x8, p4x4, b8x8, i8x8, i4x4, none, all
  -direct-pred       <int>        E..V..... Direct MV prediction mode (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     spatial                      E..V.....
     temporal                     E..V.....
     auto                         E..V.....
  -slice-max-size    <int>        E..V..... Limit the size of each slice in bytes (from -1 to INT_MAX) (default -1)
  -stats             <string>     E..V..... Filename for 2 pass stats
  -nal-hrd           <int>        E..V..... Signal HRD information (requires vbv-bufsize; cbr not allowed in .mp4) (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     vbr                          E..V.....
     cbr                          E..V.....
  -avcintra-class    <int>        E..V..... AVC-Intra class 50/100/200 (from -1 to 200) (default -1)
  -me_method         <int>        E..V..... Set motion estimation method (from -1 to 4) (default -1)
     dia                          E..V.....
     hex                          E..V.....
     umh                          E..V.....
     esa                          E..V.....
     tesa                         E..V.....
  -motion-est        <int>        E..V..... Set motion estimation method (from -1 to 4) (default -1)
     dia                          E..V.....
     hex                          E..V.....
     umh                          E..V.....
     esa                          E..V.....
     tesa                         E..V.....
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -coder             <int>        E..V..... Coder type (from -1 to 1) (default default)
     default                      E..V.....
     cavlc                        E..V.....
     cabac                        E..V.....
     vlc                          E..V.....
     ac                           E..V.....
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from -1 to 2) (default -1)
  -chromaoffset      <int>        E..V..... QP difference between chroma and luma (from INT_MIN to INT_MAX) (default -1)
  -sc_threshold      <int>        E..V..... Scene change threshold (from INT_MIN to INT_MAX) (default -1)
  -noise_reduction   <int>        E..V..... Noise reduction (from INT_MIN to INT_MAX) (default -1)
  -x264-params       <string>     E..V..... Override the x264 configuration using a :-separated list of key=value parameters

libx265 AVOptions:
  -crf               <float>      E..V..... set the x265 crf (from -1 to FLT_MAX) (default -1)
  -forced-idr        <boolean>    E..V..... if forcing keyframes, force them as IDR frames (default false)
  -preset            <string>     E..V..... set the x265 preset
  -tune              <string>     E..V..... set the x265 tune parameter
  -profile           <string>     E..V..... set the x265 profile
  -x265-params       <string>     E..V..... set the x265 configuration using a :-separated list of key=value parameters

libxavs AVOptions:
  -crf               <float>      E..V..... Select the quality for constant quality mode (from -1 to FLT_MAX) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to INT_MAX) (default -1)
  -b-bias            <int>        E..V..... Influences how often B-frames are used (from INT_MIN to INT_MAX) (default INT_MIN)
  -cplxblur          <float>      E..V..... Reduce fluctuations in QP (before curve compression) (from -1 to FLT_MAX) (default -1)
  -direct-pred       <int>        E..V..... Direct MV prediction mode (from -1 to INT_MAX) (default -1)
     none                         E..V.....
     spatial                      E..V.....
     temporal                     E..V.....
     auto                         E..V.....
  -aud               <boolean>    E..V..... Use access unit delimiters. (default auto)
  -mbtree            <boolean>    E..V..... Use macroblock tree ratecontrol. (default auto)
  -mixed-refs        <boolean>    E..V..... One reference per partition, as opposed to one reference per macroblock (default auto)
  -fast-pskip        <boolean>    E..V..... (default auto)
  -motion-est        <int>        E..V..... Set motion estimation method (from -1 to 4) (default dia)
     dia                          E..V.....
     hex                          E..V.....
     umh                          E..V.....
     esa                          E..V.....
     tesa                         E..V.....
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from 0 to 2) (default 0)
  -chromaoffset      <int>        E..V..... QP difference between chroma and luma (from INT_MIN to INT_MAX) (default 0)
  -sc_threshold      <int>        E..V..... Scene change threshold (from 0 to INT_MAX) (default 0)
  -noise_reduction   <int>        E..V..... Noise reduction (from 0 to INT_MAX) (default 0)

libxvid AVOptions:
  -lumi_aq           <int>        E..V..... Luminance masking AQ (from 0 to 1) (default 0)
  -variance_aq       <int>        E..V..... Variance AQ (from 0 to 1) (default 0)
  -ssim              <int>        E..V..... Show SSIM information to stdout (from 0 to 2) (default off)
     off                          E..V.....
     avg                          E..V.....
     frame                        E..V.....
  -ssim_acc          <int>        E..V..... SSIM accuracy (from 0 to 4) (default 2)
  -gmc               <int>        E..V..... use GMC (from 0 to 1) (default 0)
  -me_quality        <int>        E..V..... Motion estimation quality (from 0 to 6) (default 4)
  -mpeg_quant        <int>        E..V..... Use MPEG quantizers instead of H.263 (from 0 to 1) (default 0)

h264_nvenc AVOptions:
  -preset            <int>        E..V..... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.....
     slow                         E..V..... hq 2 passes
     medium                       E..V..... hq 1 pass
     fast                         E..V..... hp 1 pass
     hp                           E..V.....
     hq                           E..V.....
     bd                           E..V.....
     ll                           E..V..... low latency
     llhq                         E..V..... low latency hq
     llhp                         E..V..... low latency hp
     lossless                     E..V.....
     losslesshp                   E..V.....
  -profile           <int>        E..V..... Set the encoding profile (from 0 to 3) (default main)
     baseline                     E..V.....
     main                         E..V.....
     high                         E..V.....
     high444p                     E..V.....
  -level             <int>        E..V..... Set the encoding level restriction (from 0 to 51) (default auto)
     auto                         E..V.....
     1                            E..V.....
     1.0                          E..V.....
     1b                           E..V.....
     1.0b                         E..V.....
     1.1                          E..V.....
     1.2                          E..V.....
     1.3                          E..V.....
     2                            E..V.....
     2.0                          E..V.....
     2.1                          E..V.....
     2.2                          E..V.....
     3                            E..V.....
     3.0                          E..V.....
     3.1                          E..V.....
     3.2                          E..V.....
     4                            E..V.....
     4.0                          E..V.....
     4.1                          E..V.....
     4.2                          E..V.....
     5                            E..V.....
     5.0                          E..V.....
     5.1                          E..V.....
  -rc                <int>        E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V..... Constant QP mode
     vbr                          E..V..... Variable bitrate mode
     cbr                          E..V..... Constant bitrate mode
     vbr_minqp                    E..V..... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V..... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V..... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V..... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V..... Constant bitrate low delay high quality mode
     cbr_hq                       E..V..... Constant bitrate high quality mode
     vbr_hq                       E..V..... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V..... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V..... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V..... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V..... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V..... Pick the first device available
     list                         E..V..... List the available devices
  -delay             <int>        E..V..... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V..... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -b_adapt           <boolean>    E..V..... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)
  -spatial-aq        <boolean>    E..V..... set to 1 to enable Spatial AQ (default false)
  -temporal-aq       <boolean>    E..V..... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V..... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V..... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V..... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V..... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V..... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V..... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V..... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V..... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V..... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V..... Set 1 to enable weighted prediction (from 0 to 1) (default 0)
  -coder             <int>        E..V..... Coder type (from -1 to 2) (default default)
     default                      E..V.....
     auto                         E..V.....
     cabac                        E..V.....
     cavlc                        E..V.....
     ac                           E..V.....
     vlc                          E..V.....
  -b_ref_mode        <int>        E..V..... Use B frames as references (from 0 to 2) (default disabled)
     disabled                     E..V..... B frames will not be used for reference
     each                         E..V..... Each B frame will be used for reference
     middle                       E..V..... Only (number of B frames)/2 will be used for reference

h264_qsv encoder AVOptions:
  -async_depth       <int>        E..V..... Maximum processing parallelism (from 0 to INT_MAX) (default 4)
  -avbr_accuracy     <int>        E..V..... Accuracy of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -avbr_convergence  <int>        E..V..... Convergence of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -preset            <int>        E..V..... (from 1 to 7) (default medium)
     veryfast                     E..V.....
     faster                       E..V.....
     fast                         E..V.....
     medium                       E..V.....
     slow                         E..V.....
     slower                       E..V.....
     veryslow                     E..V.....
  -vcm               <int>        E..V..... Use the video conferencing mode ratecontrol (from 0 to 1) (default 0)
  -rdo               <int>        E..V..... Enable rate distortion optimization (from -1 to 1) (default -1)
  -max_frame_size    <int>        E..V..... Maximum encoded frame size in bytes (from -1 to 65535) (default -1)
  -max_slice_size    <int>        E..V..... Maximum encoded slice size in bytes (from -1 to 65535) (default -1)
  -bitrate_limit     <int>        E..V..... Toggle bitrate limitations (from -1 to 1) (default -1)
  -mbbrc             <int>        E..V..... MB level bitrate control (from -1 to 1) (default -1)
  -extbrc            <int>        E..V..... Extended bitrate control (from -1 to 1) (default -1)
  -adaptive_i        <int>        E..V..... Adaptive I-frame placement (from -1 to 1) (default -1)
  -adaptive_b        <int>        E..V..... Adaptive B-frame placement (from -1 to 1) (default -1)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from -1 to 1) (default -1)
  -cavlc             <int>        E..V..... Enable CAVLC (from 0 to 1) (default 0)
  -idr_interval      <int>        E..V..... Distance (in I-frames) between IDR frames (from 0 to INT_MAX) (default 0)
  -pic_timing_sei    <int>        E..V..... Insert picture timing SEI with pic_struct_syntax element (from 0 to 1) (default 1)
  -single_sei_nal_unit <int>        E..V..... Put all the SEI messages into one NALU (from -1 to 1) (default -1)
  -max_dec_frame_buffering <int>        E..V..... Maximum number of frames buffered in the DPB (from 0 to 65535) (default 0)
  -look_ahead        <int>        E..V..... Use VBR algorithm with look ahead (from 0 to 1) (default 0)
  -look_ahead_depth  <int>        E..V..... Depth of look ahead in number frames (from 0 to 100) (default 0)
  -look_ahead_downsampling <int>        E..V..... Downscaling factor for the frames saved for the lookahead analysis (from 0 to 2) (default unknown)
     unknown                      E..V.....
     auto                         E..V.....
     off                          E..V.....
     2x                           E..V.....
     4x                           E..V.....
  -int_ref_type      <int>        E..V..... Intra refresh type (from -1 to 65535) (default -1)
     none                         E..V.....
     vertical                     E..V.....
  -int_ref_cycle_size <int>        E..V..... Number of frames in the intra refresh cycle (from -1 to 65535) (default -1)
  -int_ref_qp_delta  <int>        E..V..... QP difference for the refresh MBs (from -32768 to 32767) (default -32768)
  -recovery_point_sei <int>        E..V..... Insert recovery point SEI messages (from -1 to 1) (default -1)
  -trellis           <flags>      E..V..... Trellis quantization (default 0)
     off                          E..V.....
     I                            E..V.....
     P                            E..V.....
     B                            E..V.....
  -profile           <int>        E..V..... (from 0 to INT_MAX) (default unknown)
     unknown                      E..V.....
     baseline                     E..V.....
     main                         E..V.....
     high                         E..V.....
  -a53cc             <int>        E..V..... Use A53 Closed Captions (if available) (from 0 to 1) (default 0)
  -aud               <int>        E..V..... Insert the Access Unit Delimiter NAL (from 0 to 1) (default 0)

nvenc AVOptions:
  -preset            <int>        E..V..... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.....
     slow                         E..V..... hq 2 passes
     medium                       E..V..... hq 1 pass
     fast                         E..V..... hp 1 pass
     hp                           E..V.....
     hq                           E..V.....
     bd                           E..V.....
     ll                           E..V..... low latency
     llhq                         E..V..... low latency hq
     llhp                         E..V..... low latency hp
     lossless                     E..V.....
     losslesshp                   E..V.....
  -profile           <int>        E..V..... Set the encoding profile (from 0 to 3) (default main)
     baseline                     E..V.....
     main                         E..V.....
     high                         E..V.....
     high444p                     E..V.....
  -level             <int>        E..V..... Set the encoding level restriction (from 0 to 51) (default auto)
     auto                         E..V.....
     1                            E..V.....
     1.0                          E..V.....
     1b                           E..V.....
     1.0b                         E..V.....
     1.1                          E..V.....
     1.2                          E..V.....
     1.3                          E..V.....
     2                            E..V.....
     2.0                          E..V.....
     2.1                          E..V.....
     2.2                          E..V.....
     3                            E..V.....
     3.0                          E..V.....
     3.1                          E..V.....
     3.2                          E..V.....
     4                            E..V.....
     4.0                          E..V.....
     4.1                          E..V.....
     4.2                          E..V.....
     5                            E..V.....
     5.0                          E..V.....
     5.1                          E..V.....
  -rc                <int>        E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V..... Constant QP mode
     vbr                          E..V..... Variable bitrate mode
     cbr                          E..V..... Constant bitrate mode
     vbr_minqp                    E..V..... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V..... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V..... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V..... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V..... Constant bitrate low delay high quality mode
     cbr_hq                       E..V..... Constant bitrate high quality mode
     vbr_hq                       E..V..... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V..... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V..... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V..... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V..... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V..... Pick the first device available
     list                         E..V..... List the available devices
  -delay             <int>        E..V..... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V..... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -b_adapt           <boolean>    E..V..... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)
  -spatial-aq        <boolean>    E..V..... set to 1 to enable Spatial AQ (default false)
  -temporal-aq       <boolean>    E..V..... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V..... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V..... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V..... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V..... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V..... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V..... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V..... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V..... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V..... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V..... Set 1 to enable weighted prediction (from 0 to 1) (default 0)
  -coder             <int>        E..V..... Coder type (from -1 to 2) (default default)
     default                      E..V.....
     auto                         E..V.....
     cabac                        E..V.....
     cavlc                        E..V.....
     ac                           E..V.....
     vlc                          E..V.....
  -b_ref_mode        <int>        E..V..... Use B frames as references (from 0 to 2) (default disabled)
     disabled                     E..V..... B frames will not be used for reference
     each                         E..V..... Each B frame will be used for reference
     middle                       E..V..... Only (number of B frames)/2 will be used for reference

nvenc_h264 AVOptions:
  -preset            <int>        E..V..... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.....
     slow                         E..V..... hq 2 passes
     medium                       E..V..... hq 1 pass
     fast                         E..V..... hp 1 pass
     hp                           E..V.....
     hq                           E..V.....
     bd                           E..V.....
     ll                           E..V..... low latency
     llhq                         E..V..... low latency hq
     llhp                         E..V..... low latency hp
     lossless                     E..V.....
     losslesshp                   E..V.....
  -profile           <int>        E..V..... Set the encoding profile (from 0 to 3) (default main)
     baseline                     E..V.....
     main                         E..V.....
     high                         E..V.....
     high444p                     E..V.....
  -level             <int>        E..V..... Set the encoding level restriction (from 0 to 51) (default auto)
     auto                         E..V.....
     1                            E..V.....
     1.0                          E..V.....
     1b                           E..V.....
     1.0b                         E..V.....
     1.1                          E..V.....
     1.2                          E..V.....
     1.3                          E..V.....
     2                            E..V.....
     2.0                          E..V.....
     2.1                          E..V.....
     2.2                          E..V.....
     3                            E..V.....
     3.0                          E..V.....
     3.1                          E..V.....
     3.2                          E..V.....
     4                            E..V.....
     4.0                          E..V.....
     4.1                          E..V.....
     4.2                          E..V.....
     5                            E..V.....
     5.0                          E..V.....
     5.1                          E..V.....
  -rc                <int>        E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V..... Constant QP mode
     vbr                          E..V..... Variable bitrate mode
     cbr                          E..V..... Constant bitrate mode
     vbr_minqp                    E..V..... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V..... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V..... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V..... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V..... Constant bitrate low delay high quality mode
     cbr_hq                       E..V..... Constant bitrate high quality mode
     vbr_hq                       E..V..... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V..... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V..... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V..... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V..... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V..... Pick the first device available
     list                         E..V..... List the available devices
  -delay             <int>        E..V..... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V..... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -b_adapt           <boolean>    E..V..... When lookahead is enabled, set this to 0 to disable adaptive B-frame decision (default true)
  -spatial-aq        <boolean>    E..V..... set to 1 to enable Spatial AQ (default false)
  -temporal-aq       <boolean>    E..V..... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V..... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V..... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V..... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V..... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V..... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V..... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V..... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V..... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V..... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V..... Set 1 to enable weighted prediction (from 0 to 1) (default 0)
  -coder             <int>        E..V..... Coder type (from -1 to 2) (default default)
     default                      E..V.....
     auto                         E..V.....
     cabac                        E..V.....
     cavlc                        E..V.....
     ac                           E..V.....
     vlc                          E..V.....
  -b_ref_mode        <int>        E..V..... Use B frames as references (from 0 to 2) (default disabled)
     disabled                     E..V..... B frames will not be used for reference
     each                         E..V..... Each B frame will be used for reference
     middle                       E..V..... Only (number of B frames)/2 will be used for reference

nvenc_hevc AVOptions:
  -preset            <int>        E..V..... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.....
     slow                         E..V..... hq 2 passes
     medium                       E..V..... hq 1 pass
     fast                         E..V..... hp 1 pass
     hp                           E..V.....
     hq                           E..V.....
     bd                           E..V.....
     ll                           E..V..... low latency
     llhq                         E..V..... low latency hq
     llhp                         E..V..... low latency hp
     lossless                     E..V..... lossless
     losslesshp                   E..V..... lossless hp
  -profile           <int>        E..V..... Set the encoding profile (from 0 to 4) (default main)
     main                         E..V.....
     main10                       E..V.....
     rext                         E..V.....
  -level             <int>        E..V..... Set the encoding level restriction (from 0 to 186) (default auto)
     auto                         E..V.....
     1                            E..V.....
     1.0                          E..V.....
     2                            E..V.....
     2.0                          E..V.....
     2.1                          E..V.....
     3                            E..V.....
     3.0                          E..V.....
     3.1                          E..V.....
     4                            E..V.....
     4.0                          E..V.....
     4.1                          E..V.....
     5                            E..V.....
     5.0                          E..V.....
     5.1                          E..V.....
     5.2                          E..V.....
     6                            E..V.....
     6.0                          E..V.....
     6.1                          E..V.....
     6.2                          E..V.....
  -tier              <int>        E..V..... Set the encoding tier (from 0 to 1) (default main)
     main                         E..V.....
     high                         E..V.....
  -rc                <int>        E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V..... Constant QP mode
     vbr                          E..V..... Variable bitrate mode
     cbr                          E..V..... Constant bitrate mode
     vbr_minqp                    E..V..... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V..... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V..... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V..... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V..... Constant bitrate low delay high quality mode
     cbr_hq                       E..V..... Constant bitrate high quality mode
     vbr_hq                       E..V..... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V..... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V..... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V..... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V..... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V..... Pick the first device available
     list                         E..V..... List the available devices
  -delay             <int>        E..V..... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V..... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -spatial_aq        <boolean>    E..V..... set to 1 to enable Spatial AQ (default false)
  -temporal_aq       <boolean>    E..V..... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V..... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V..... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V..... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V..... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V..... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V..... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V..... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V..... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V..... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V..... Set 1 to enable weighted prediction (from 0 to 1) (default 0)

hevc_nvenc AVOptions:
  -preset            <int>        E..V..... Set the encoding preset (from 0 to 11) (default medium)
     default                      E..V.....
     slow                         E..V..... hq 2 passes
     medium                       E..V..... hq 1 pass
     fast                         E..V..... hp 1 pass
     hp                           E..V.....
     hq                           E..V.....
     bd                           E..V.....
     ll                           E..V..... low latency
     llhq                         E..V..... low latency hq
     llhp                         E..V..... low latency hp
     lossless                     E..V..... lossless
     losslesshp                   E..V..... lossless hp
  -profile           <int>        E..V..... Set the encoding profile (from 0 to 4) (default main)
     main                         E..V.....
     main10                       E..V.....
     rext                         E..V.....
  -level             <int>        E..V..... Set the encoding level restriction (from 0 to 186) (default auto)
     auto                         E..V.....
     1                            E..V.....
     1.0                          E..V.....
     2                            E..V.....
     2.0                          E..V.....
     2.1                          E..V.....
     3                            E..V.....
     3.0                          E..V.....
     3.1                          E..V.....
     4                            E..V.....
     4.0                          E..V.....
     4.1                          E..V.....
     5                            E..V.....
     5.0                          E..V.....
     5.1                          E..V.....
     5.2                          E..V.....
     6                            E..V.....
     6.0                          E..V.....
     6.1                          E..V.....
     6.2                          E..V.....
  -tier              <int>        E..V..... Set the encoding tier (from 0 to 1) (default main)
     main                         E..V.....
     high                         E..V.....
  -rc                <int>        E..V..... Override the preset rate-control (from -1 to INT_MAX) (default -1)
     constqp                      E..V..... Constant QP mode
     vbr                          E..V..... Variable bitrate mode
     cbr                          E..V..... Constant bitrate mode
     vbr_minqp                    E..V..... Variable bitrate mode with MinQP (deprecated)
     ll_2pass_quality              E..V..... Multi-pass optimized for image quality (deprecated)
     ll_2pass_size                E..V..... Multi-pass optimized for constant frame size (deprecated)
     vbr_2pass                    E..V..... Multi-pass variable bitrate mode (deprecated)
     cbr_ld_hq                    E..V..... Constant bitrate low delay high quality mode
     cbr_hq                       E..V..... Constant bitrate high quality mode
     vbr_hq                       E..V..... Variable bitrate high quality mode
  -rc-lookahead      <int>        E..V..... Number of frames to look ahead for rate-control (from 0 to INT_MAX) (default 0)
  -surfaces          <int>        E..V..... Number of concurrent surfaces (from 0 to 64) (default 0)
  -cbr               <boolean>    E..V..... Use cbr encoding mode (default false)
  -2pass             <boolean>    E..V..... Use 2pass encoding mode (default auto)
  -gpu               <int>        E..V..... Selects which NVENC capable GPU to use. First GPU is 0, second is 1, and so on. (from -2 to INT_MAX) (default any)
     any                          E..V..... Pick the first device available
     list                         E..V..... List the available devices
  -delay             <int>        E..V..... Delay frame output by the given amount of frames (from 0 to INT_MAX) (default INT_MAX)
  -no-scenecut       <boolean>    E..V..... When lookahead is enabled, set this to 1 to disable adaptive I-frame insertion at scene cuts (default false)
  -forced-idr        <boolean>    E..V..... If forcing keyframes, force them as IDR frames. (default false)
  -spatial_aq        <boolean>    E..V..... set to 1 to enable Spatial AQ (default false)
  -temporal_aq       <boolean>    E..V..... set to 1 to enable Temporal AQ (default false)
  -zerolatency       <boolean>    E..V..... Set 1 to indicate zero latency operation (no reordering delay) (default false)
  -nonref_p          <boolean>    E..V..... Set this to 1 to enable automatic insertion of non-reference P-frames (default false)
  -strict_gop        <boolean>    E..V..... Set 1 to minimize GOP-to-GOP rate fluctuations (default false)
  -aq-strength       <int>        E..V..... When Spatial AQ is enabled, this field is used to specify AQ strength. AQ strength scale is from 1 (low) - 15 (aggressive) (from 1 to 15) (default 8)
  -cq                <float>      E..V..... Set target quality level (0 to 51, 0 means automatic) for constant quality mode in VBR rate control (from 0 to 51) (default 0)
  -aud               <boolean>    E..V..... Use access unit delimiters (default false)
  -bluray-compat     <boolean>    E..V..... Bluray compatibility workarounds (default false)
  -init_qpP          <int>        E..V..... Initial QP value for P frame (from -1 to 51) (default -1)
  -init_qpB          <int>        E..V..... Initial QP value for B frame (from -1 to 51) (default -1)
  -init_qpI          <int>        E..V..... Initial QP value for I frame (from -1 to 51) (default -1)
  -qp                <int>        E..V..... Constant quantization parameter rate control method (from -1 to 51) (default -1)
  -weighted_pred     <int>        E..V..... Set 1 to enable weighted prediction (from 0 to 1) (default 0)

hevc_qsv encoder AVOptions:
  -async_depth       <int>        E..V..... Maximum processing parallelism (from 0 to INT_MAX) (default 4)
  -avbr_accuracy     <int>        E..V..... Accuracy of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -avbr_convergence  <int>        E..V..... Convergence of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -preset            <int>        E..V..... (from 1 to 7) (default medium)
     veryfast                     E..V.....
     faster                       E..V.....
     fast                         E..V.....
     medium                       E..V.....
     slow                         E..V.....
     slower                       E..V.....
     veryslow                     E..V.....
  -vcm               <int>        E..V..... Use the video conferencing mode ratecontrol (from 0 to 1) (default 0)
  -rdo               <int>        E..V..... Enable rate distortion optimization (from -1 to 1) (default -1)
  -max_frame_size    <int>        E..V..... Maximum encoded frame size in bytes (from -1 to 65535) (default -1)
  -max_slice_size    <int>        E..V..... Maximum encoded slice size in bytes (from -1 to 65535) (default -1)
  -bitrate_limit     <int>        E..V..... Toggle bitrate limitations (from -1 to 1) (default -1)
  -mbbrc             <int>        E..V..... MB level bitrate control (from -1 to 1) (default -1)
  -extbrc            <int>        E..V..... Extended bitrate control (from -1 to 1) (default -1)
  -adaptive_i        <int>        E..V..... Adaptive I-frame placement (from -1 to 1) (default -1)
  -adaptive_b        <int>        E..V..... Adaptive B-frame placement (from -1 to 1) (default -1)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from -1 to 1) (default -1)
  -idr_interval      <int>        E..V..... Distance (in I-frames) between IDR frames (from -1 to INT_MAX) (default 0)
     begin_only                   E..V..... Output an IDR-frame only at the beginning of the stream
  -load_plugin       <int>        E..V..... A user plugin to load in an internal session (from 0 to 2) (default hevc_sw)
     none                         E..V.....
     hevc_sw                      E..V.....
     hevc_hw                      E..V.....
  -load_plugins      <string>     E..V..... A :-separate list of hexadecimal plugin UIDs to load in an internal session (default "")
  -profile           <int>        E..V..... (from 0 to INT_MAX) (default unknown)
     unknown                      E..V.....
     main                         E..V.....
     main10                       E..V.....
     mainsp                       E..V.....

mjpeg_qsv encoder AVOptions:

mpeg2_qsv encoder AVOptions:
  -async_depth       <int>        E..V..... Maximum processing parallelism (from 0 to INT_MAX) (default 4)
  -avbr_accuracy     <int>        E..V..... Accuracy of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -avbr_convergence  <int>        E..V..... Convergence of the AVBR ratecontrol (from 0 to INT_MAX) (default 0)
  -preset            <int>        E..V..... (from 1 to 7) (default medium)
     veryfast                     E..V.....
     faster                       E..V.....
     fast                         E..V.....
     medium                       E..V.....
     slow                         E..V.....
     slower                       E..V.....
     veryslow                     E..V.....
  -vcm               <int>        E..V..... Use the video conferencing mode ratecontrol (from 0 to 1) (default 0)
  -rdo               <int>        E..V..... Enable rate distortion optimization (from -1 to 1) (default -1)
  -max_frame_size    <int>        E..V..... Maximum encoded frame size in bytes (from -1 to 65535) (default -1)
  -max_slice_size    <int>        E..V..... Maximum encoded slice size in bytes (from -1 to 65535) (default -1)
  -bitrate_limit     <int>        E..V..... Toggle bitrate limitations (from -1 to 1) (default -1)
  -mbbrc             <int>        E..V..... MB level bitrate control (from -1 to 1) (default -1)
  -extbrc            <int>        E..V..... Extended bitrate control (from -1 to 1) (default -1)
  -adaptive_i        <int>        E..V..... Adaptive I-frame placement (from -1 to 1) (default -1)
  -adaptive_b        <int>        E..V..... Adaptive B-frame placement (from -1 to 1) (default -1)
  -b_strategy        <int>        E..V..... Strategy to choose between I/P/B-frames (from -1 to 1) (default -1)
  -profile           <int>        E..V..... (from 0 to INT_MAX) (default unknown)
     unknown                      E..V.....
     simple                       E..V.....
     main                         E..V.....
     high                         E..V.....

EXR AVOptions:
  -layer             <string>     .D.V..... Set the decoding layer (default "")
  -gamma             <float>      .D.V..... Set the float gamma value when decoding (from 0.001 to FLT_MAX) (default 1)
  -apply_trc         <int>        .D.V..... color transfer characteristics to apply to EXR linear input (from 1 to 18) (default gamma)
     bt709                        .D.V..... BT.709
     gamma                        .D.V..... gamma
     gamma22                      .D.V..... BT.470 M
     gamma28                      .D.V..... BT.470 BG
     smpte170m                    .D.V..... SMPTE 170 M
     smpte240m                    .D.V..... SMPTE 240 M
     linear                       .D.V..... Linear
     log                          .D.V..... Log
     log_sqrt                     .D.V..... Log square root
     iec61966_2_4                 .D.V..... IEC 61966-2-4
     bt1361                       .D.V..... BT.1361
     iec61966_2_1                 .D.V..... IEC 61966-2-1
     bt2020_10bit                 .D.V..... BT.2020 - 10 bit
     bt2020_12bit                 .D.V..... BT.2020 - 12 bit
     smpte2084                    .D.V..... SMPTE ST 2084
     smpte428_1                   .D.V..... SMPTE ST 428-1

FIC encoder AVOptions:
  -skip_cursor       <boolean>    .D.V..... skip the cursor (default false)

FITS decoder AVOptions:
  -blank_value       <int>        .D.V..... value that is used to replace BLANK pixels in data array (from 0 to 65535) (default 0)

frwu Decoder AVOptions:
  -change_field_order <boolean>    .D.V..... Change field order (default false)

gif decoder AVOptions:
  -trans_color       <int>        .D.V..... color value (ARGB) that is used instead of transparent color (from 0 to UINT32_MAX) (default 1.67772e+007)

H264 Decoder AVOptions:
  -enable_er         <boolean>    .D.V..... Enable error resilience on damaged frames (unsafe) (default auto)
  -x264_build        <int>        .D.V..... Assume this x264 version if no x264 version found in any SEI (from -1 to INT_MAX) (default -1)

h264_qsv AVOptions:
  -async_depth       <int>        .D.V..... Internal parallelization depth, the higher the value the higher the latency. (from 0 to INT_MAX) (default 4)

HEVC decoder AVOptions:
  -apply_defdispwin  <boolean>    .D.V..... Apply default display window from VUI (default false)
  -strict-displaywin <boolean>    .D.V..... stricly apply default display window size (default false)

hevc_qsv AVOptions:
  -async_depth       <int>        .D.V..... Internal parallelization depth, the higher the value the higher the latency. (from 0 to INT_MAX) (default 4)
  -load_plugin       <int>        .D.V..... A user plugin to load in an internal session (from 0 to 2) (default hevc_sw)
     none                         .D.V.....
     hevc_sw                      .D.V.....
     hevc_hw                      .D.V.....
  -load_plugins      <string>     .D.V..... A :-separate list of hexadecimal plugin UIDs to load in an internal session (default "")

jpeg2000 AVOptions:
  -lowres            <int>        .D.V..... Lower the decoding resolution by a power of two (from 0 to 33) (default 0)

MJPEG decoder AVOptions:
  -extern_huff       <boolean>    .D.V..... Use external huffman table. (default false)

MPEG4 Video Decoder AVOptions:

mpeg2_qsv AVOptions:
  -async_depth       <int>        .D.V..... Internal parallelization depth, the higher the value the higher the latency. (from 0 to INT_MAX) (default 4)

rawdec AVOptions:
  -top               <boolean>    .D.V..... top field first (default auto)

SMPTE 302M Decoder AVOptions:
  -non_pcm_mode      <int>        .D..A.... Chooses what to do with NON-PCM (from 0 to 3) (default decode_drop)
     copy                         .D..A.... Pass NON-PCM through unchanged
     drop                         .D..A.... Drop NON-PCM
     decode_copy                  .D..A.... Decode if possible else passthrough
     decode_drop                  .D..A.... Decode if possible else drop

V210 Decoder AVOptions:
  -custom_stride     <int>        .D.V..... Custom V210 stride (from INT_MIN to INT_MAX) (default 0)

vc1_qsv AVOptions:
  -async_depth       <int>        .D.V..... Internal parallelization depth, the higher the value the higher the latency. (from 0 to INT_MAX) (default 4)

AAC decoder AVOptions:
  -dual_mono_mode    <int>        .D..A.... Select the channel to decode for dual mono (from -1 to 2) (default auto)
     auto                         .D..A.... autoselection
     main                         .D..A.... Select Main/Left channel
     sub                          .D..A.... Select Sub/Right channel
     both                         .D..A.... Select both channels

AC3 decoder AVOptions:
  -cons_noisegen     <boolean>    .D..A.... enable consistent noise generation (default false)
  -drc_scale         <float>      .D..A.... percentage of dynamic range compression to apply (from 0 to 6) (default 1)
  -heavy_compr       <boolean>    .D..A.... enable heavy dynamic range compression (default false)
  -target_level      <int>        .D..A.... target level in -dBFS (0 not applied) (from -31 to 0) (default 0)

Fixed-Point AC-3 Decoder AVOptions:
  -cons_noisegen     <boolean>    .D..A.... enable consistent noise generation (default false)
  -drc_scale         <float>      .D..A.... percentage of dynamic range compression to apply (from 0 to 6) (default 1)
  -heavy_compr       <boolean>    .D..A.... enable heavy dynamic range compression (default false)

alac AVOptions:
  -extra_bits_bug    <boolean>    .D..A.... Force non-standard decoding process (default false)

APE decoder AVOptions:
  -max_samples       <int>        .D..A.... maximum number of samples decoded per call (from 1 to INT_MAX) (default 4608)
     all                          .D..A.... no maximum. decode all samples for each packet at once

DCA decoder AVOptions:
  -core_only         <boolean>    .D..A.... Decode core only without extensions (default false)

E-AC3 decoder AVOptions:
  -cons_noisegen     <boolean>    .D..A.... enable consistent noise generation (default false)
  -drc_scale         <float>      .D..A.... percentage of dynamic range compression to apply (from 0 to 6) (default 1)
  -heavy_compr       <boolean>    .D..A.... enable heavy dynamic range compression (default false)
  -target_level      <int>        .D..A.... target level in -dBFS (0 not applied) (from -31 to 0) (default 0)

evrc AVOptions:
  -postfilter        <boolean>    .D..A.... enable postfilter (default true)

FLAC decoder AVOptions:
  -use_buggy_lpc     <boolean>    .D..A.... emulate old buggy lavc behavior (default false)

G.723.1 decoder AVOptions:
  -postfilter        <boolean>    .D..A.... enable postfilter (default true)

Opus Decoder AVOptions:
  -apply_phase_inv   <boolean>    .D..A.... Apply intensity stereo phase inversion (default true)

TTA Decoder AVOptions:
  -password          <string>     .D..A.... Set decoding password

g722 decoder AVOptions:
  -bits_per_codeword <int>        .D..A.... Bits per G722 codeword (from 6 to 8) (default 8)

Closed caption Decoder AVOptions:
  -real_time         <boolean>    .D...S... emit subtitle events as they are decoded for real-time display (default false)

DVB Sub Decoder AVOptions:
  -compute_edt       <boolean>    .D...S... compute end of time using pts or timeout (default false)
  -compute_clut      <boolean>    .D...S... compute clut when not available(-1) or always(1) or never(0) (default auto)
  -dvb_substream     <int>        .D...S...  (from -1 to 63) (default -1)

dvdsubdec AVOptions:
  -palette           <string>     .D...S... set the global palette
  -ifo_palette       <string>     .D...S... obtain the global palette from .IFO file
  -forced_subs_only  <boolean>    .D...S... Only show forced subtitles (default false)

PGS subtitle decoder AVOptions:
  -forced_subs_only  <boolean>    .D...S... Only show forced subtitles (default false)

pjs decoder AVOptions:
  -keep_ass_markup   <boolean>    .D...S... Set if ASS tags must be escaped (default false)

stl decoder AVOptions:
  -keep_ass_markup   <boolean>    .D...S... Set if ASS tags must be escaped (default false)

subviewer1 decoder AVOptions:
  -keep_ass_markup   <boolean>    .D...S... Set if ASS tags must be escaped (default false)

text decoder AVOptions:
  -keep_ass_markup   <boolean>    .D...S... Set if ASS tags must be escaped (default false)

vplayer decoder AVOptions:
  -keep_ass_markup   <boolean>    .D...S... Set if ASS tags must be escaped (default false)

libfdk-aac decoder AVOptions:
  -conceal           <int>        .D..A.... Error concealment method (from 0 to 2) (default noise)
     spectral                     .D..A.... Spectral muting
     noise                        .D..A.... Noise Substitution
     energy                       .D..A.... Energy Interpolation
  -drc_boost         <int>        .D..A.... Dynamic Range Control: boost, where [0] is none and [127] is max boost (from -1 to 127) (default -1)
  -drc_cut           <int>        .D..A.... Dynamic Range Control: attenuation factor, where [0] is none and [127] is max compression (from -1 to 127) (default -1)
  -drc_level         <int>        .D..A.... Dynamic Range Control: reference level, quantized to 0.25dB steps where [0] is 0dB and [127] is -31.75dB (from -1 to 127) (default -1)
  -drc_heavy         <int>        .D..A.... Dynamic Range Control: heavy compression, where [1] is on (RF mode) and [0] is off (from -1 to 1) (default -1)
  -level_limit       <int>        .D..A.... Signal level limiting (from -1 to 1) (default 0)

libopenjpeg AVOptions:
  -lowqual           <int>        .D.V..... Limit the number of layers used for decoding (from 0 to INT_MAX) (default 0)

libopusdec AVOptions:
  -apply_phase_inv   <boolean>    .D..A.... Apply intensity stereo phase inversion (default true)

h264_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

hevc_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

mjpeg_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

mpeg1_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

mpeg2_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

mpeg4_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

vc1_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

vp8_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

vp8_qsv AVOptions:
  -async_depth       <int>        .D.V..... Internal parallelization depth, the higher the value the higher the latency. (from 0 to INT_MAX) (default 4)

vp9_cuvid AVOptions:
  -deint             <int>        .D.V..... Set deinterlacing mode (from 0 to 2) (default weave)
     weave                        .D.V..... Weave deinterlacing (do nothing)
     bob                          .D.V..... Bob deinterlacing
     adaptive                     .D.V..... Adaptive deinterlacing
  -gpu               <string>     .D.V..... GPU to be used for decoding
  -surfaces          <int>        .D.V..... Maximum surfaces to be used for decoding (from 0 to INT_MAX) (default 25)
  -drop_second_field <boolean>    .D.V..... Drop second field when deinterlacing (default false)
  -crop              <string>     .D.V..... Crop (top)x(bottom)x(left)x(right)
  -resize            <string>     .D.V..... Resize (width)x(height)

AVFormatContext AVOptions:
  -avioflags         <flags>      ED....... (default 0)
     direct                       ED....... reduce buffering
  -probesize         <int64>      .D....... set probing size (from 32 to I64_MAX) (default 5e+006)
  -formatprobesize   <int>        .D....... number of bytes to probe file format (from 0 to 2.14748e+009) (default 1.04858e+006)
  -packetsize        <int>        E........ set packet size (from 0 to INT_MAX) (default 0)
  -fflags            <flags>      ED....... (default autobsf)
     flush_packets                E........ reduce the latency by flushing out packets immediately
     ignidx                       .D....... ignore index
     genpts                       .D....... generate pts
     nofillin                     .D....... do not fill in missing values that can be exactly calculated
     noparse                      .D....... disable AVParsers, this needs nofillin too
     igndts                       .D....... ignore dts
     discardcorrupt               .D....... discard corrupted frames
     sortdts                      .D....... try to interleave outputted packets by dts
     keepside                     .D....... deprecated, does nothing
     fastseek                     .D....... fast but inaccurate seeks
     latm                         E........ enable RTP MP4A-LATM payload
     nobuffer                     .D....... reduce the latency introduced by optional buffering
     bitexact                     E........ do not write random/volatile data
     shortest                     E........ stop muxing with the shortest stream
     autobsf                      E........ add needed bsfs automatically
  -seek2any          <boolean>    .D....... allow seeking to non-keyframes on demuxer level when supported (default false)
  -analyzeduration   <int64>      .D....... specify how many microseconds are analyzed to probe the input (from 0 to I64_MAX) (default 0)
  -cryptokey         <binary>     .D....... decryption key
  -indexmem          <int>        .D....... max memory used for timestamp index (per stream) (from 0 to INT_MAX) (default 1.04858e+006)
  -rtbufsize         <int>        .D....... max memory used for buffering real-time frames (from 0 to INT_MAX) (default 3.04128e+006)
  -fdebug            <flags>      ED....... print specific debug info (default 0)
     ts                           ED.......
  -max_delay         <int>        ED....... maximum muxing or demuxing delay in microseconds (from -1 to INT_MAX) (default -1)
  -start_time_realtime <int64>      E........ wall-clock time when stream begins (PTS==0) (from I64_MIN to I64_MAX) (default I64_MIN)
  -fpsprobesize      <int>        .D....... number of frames used to probe fps (from -1 to 2.14748e+009) (default -1)
  -audio_preload     <int>        E........ microseconds by which audio packets should be interleaved earlier (from 0 to 2.14748e+009) (default 0)
  -chunk_duration    <int>        E........ microseconds for each chunk (from 0 to 2.14748e+009) (default 0)
  -chunk_size        <int>        E........ size in bytes for each chunk (from 0 to 2.14748e+009) (default 0)
  -f_err_detect      <flags>      .D....... set error detection flags (deprecated; use err_detect, save via avconv) (default crccheck)
     crccheck                     .D....... verify embedded CRCs
     bitstream                    .D....... detect bitstream specification deviations
     buffer                       .D....... detect improper bitstream length
     explode                      .D....... abort decoding on minor error detection
     ignore_err                   .D....... ignore errors
     careful                      .D....... consider things that violate the spec, are fast to check and have not been seen in the wild as errors
     compliant                    .D....... consider all spec non compliancies as errors
     aggressive                   .D....... consider things that a sane encoder shouldn't do as an error
  -err_detect        <flags>      .D....... set error detection flags (default crccheck)
     crccheck                     .D....... verify embedded CRCs
     bitstream                    .D....... detect bitstream specification deviations
     buffer                       .D....... detect improper bitstream length
     explode                      .D....... abort decoding on minor error detection
     ignore_err                   .D....... ignore errors
     careful                      .D....... consider things that violate the spec, are fast to check and have not been seen in the wild as errors
     compliant                    .D....... consider all spec non compliancies as errors
     aggressive                   .D....... consider things that a sane encoder shouldn't do as an error
  -use_wallclock_as_timestamps <boolean>    .D....... use wallclock as timestamps (default false)
  -skip_initial_bytes <int64>      .D....... set number of bytes to skip before reading header and frames (from 0 to I64_MAX) (default 0)
  -correct_ts_overflow <boolean>    .D....... correct single timestamp overflows (default true)
  -flush_packets     <int>        E........ enable flushing of the I/O context after each packet (from -1 to 1) (default -1)
  -metadata_header_padding <int>        E........ set number of bytes to be written as padding in a metadata header (from -1 to INT_MAX) (default -1)
  -output_ts_offset  <duration>   E........ set output timestamp offset (default 0)
  -max_interleave_delta <int64>      E........ maximum buffering duration for interleaving (from 0 to I64_MAX) (default 1e+007)
  -f_strict          <int>        ED....... how strictly to follow the standards (deprecated; use strict, save via avconv) (from INT_MIN to INT_MAX) (default normal)
     very                         ED....... strictly conform to a older more strict version of the spec or reference software
     strict                       ED....... strictly conform to all the things in the spec no matter what the consequences
     normal                       ED.......
     unofficial                   ED....... allow unofficial extensions
     experimental                 ED....... allow non-standardized experimental variants
  -strict            <int>        ED....... how strictly to follow the standards (from INT_MIN to INT_MAX) (default normal)
     very                         ED....... strictly conform to a older more strict version of the spec or reference software
     strict                       ED....... strictly conform to all the things in the spec no matter what the consequences
     normal                       ED.......
     unofficial                   ED....... allow unofficial extensions
     experimental                 ED....... allow non-standardized experimental variants
  -max_ts_probe      <int>        .D....... maximum number of packets to read while waiting for the first timestamp (from 0 to INT_MAX) (default 50)
  -avoid_negative_ts <int>        E........ shift timestamps so they start at 0 (from -1 to 2) (default auto)
     auto                         E........ enabled when required by target format
     disabled                     E........ do noRch

  • ?
    가인박명5 2018.08.02 19:10

    이건 어떻게 써먹는거죠

     

    프리셋 xml 파일에 적용시켜서 쓰는건가요

  • ?
    샤나 2018.08.07 10:19
    샤나인코더 메인 창에서 F8키를 눌러 입력 설정, 필터 매개변수, 인코딩 설정에 넣어 사용합니다.
    각 매개변수마다 넣는 곳이 입력 설정인지 필터 매개변수인지 인코딩 설정인지 다르나,
    인코딩 설정에 넣으면 적용되는 값들이 많습니다.

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