샤나 홈페이지 매개변수 도움말 섹션이 업데이트되면서 H264(AMF), HEVC(AMF) FFmpeg 명령행(command-line) 옵션 도움말이 사라져 버렸습니다. (FFmpeg 공식 문서에도 이 부분은 누락돼 있습니다.)
그래서 FFmpeg 실행 파일에서 해당 인코더들의 옵션을 직접 뽑아서 올립니다. (2020년 1월 N-96336 버전 기준인데, 샤나인코더 5 버전 내장 FFmpeg 라이브러리와 다를 게 없을 겁니다.)
매개변수 창(F8)의 인코딩 설정에서 적용할 수 있는 옵션들로, 본인의 하드웨어 사양에 따라 설정이 조금씩 달라져야 합니다.
AMD 그래픽 카드를 소유하신 분들은 인코딩 커스텀 설정하시는 데 참고하시기 바랍니다.
[H264(AMF)]
Encoder h264_amf [AMD AMF H.264 Encoder]:
General capabilities: delay hardware
Threading capabilities: none
Supported pixel formats: nv12 yuv420p d3d11 dxva2_vld
h264_amf AVOptions:
-usage <int> E..V...... Encoder Usage (from 0 to 3) (default transcoding)
transcoding 0 E..V...... Generic Transcoding
ultralowlatency 1 E..V......
lowlatency 2 E..V......
webcam 3 E..V...... Webcam
-profile <int> E..V...... Profile (from 66 to 257) (default main)
main 77 E..V......
high 100 E..V......
constrained_baseline 256 E..V......
constrained_high 257 E..V......
-level <int> E..V...... Profile Level (from 0 to 62) (default auto)
auto 0 E..V......
1.0 10 E..V......
1.1 11 E..V......
1.2 12 E..V......
1.3 13 E..V......
2.0 20 E..V......
2.1 21 E..V......
2.2 22 E..V......
3.0 30 E..V......
3.1 31 E..V......
3.2 32 E..V......
4.0 40 E..V......
4.1 41 E..V......
4.2 42 E..V......
5.0 50 E..V......
5.1 51 E..V......
5.2 52 E..V......
6.0 60 E..V......
6.1 61 E..V......
6.2 62 E..V......
-quality <int> E..V...... Quality Preference (from 0 to 2) (default speed)
speed 1 E..V...... Prefer Speed
balanced 0 E..V...... Balanced
quality 2 E..V...... Prefer Quality
-rc <int> E..V...... Rate Control Method (from -1 to 3) (default -1)
cqp 0 E..V...... Constant Quantization Parameter
cbr 1 E..V...... Constant Bitrate
vbr_peak 2 E..V...... Peak Contrained Variable Bitrate
vbr_latency 3 E..V...... Latency Constrained Variable Bitrate
-enforce_hrd <boolean> E..V...... Enforce HRD (default false)
-filler_data <boolean> E..V...... Filler Data Enable (default false)
-vbaq <boolean> E..V...... Enable VBAQ (default false)
-frame_skipping <boolean> E..V...... Rate Control Based Frame Skip (default false)
-qp_i <int> E..V...... Quantization Parameter for I-Frame (from -1 to 51) (default -1)
-qp_p <int> E..V...... Quantization Parameter for P-Frame (from -1 to 51) (default -1)
-qp_b <int> E..V...... Quantization Parameter for B-Frame (from -1 to 51) (default -1)
-preanalysis <boolean> E..V...... Pre-Analysis Mode (default false)
-max_au_size <int> E..V...... Maximum Access Unit Size for rate control (in bits) (from 0 to INT_MAX) (default 0)
-header_spacing <int> E..V...... Header Insertion Spacing (from -1 to 1000) (default -1)
-bf_delta_qp <int> E..V...... B-Picture Delta QP (from -10 to 10) (default 4)
-bf_ref <boolean> E..V...... Enable Reference to B-Frames (default true)
-bf_ref_delta_qp <int> E..V...... Reference B-Picture Delta QP (from -10 to 10) (default 4)
-intra_refresh_mb <int> E..V...... Intra Refresh MBs Number Per Slot in Macroblocks (from 0 to INT_MAX) (default 0)
-coder <int> E..V...... Coding Type (from 0 to 2) (default auto)
auto 0 E..V...... Automatic
cavlc 2 E..V...... Context Adaptive Variable-Length Coding
cabac 1 E..V...... Context Adaptive Binary Arithmetic Coding
-me_half_pel <boolean> E..V...... Enable ME Half Pixel (default true)
-me_quarter_pel <boolean> E..V...... Enable ME Quarter Pixel (default true)
-aud <boolean> E..V...... Inserts AU Delimiter NAL unit (default false)
-log_to_dbg <boolean> E..V...... Enable AMF logging to debug output (default false)
[HEVC(AMF)]
Encoder hevc_amf [AMD AMF HEVC encoder]:
General capabilities: delay hardware
Threading capabilities: none
Supported pixel formats: nv12 yuv420p d3d11 dxva2_vld
hevc_amf AVOptions:
-usage <int> E..V...... Set the encoding usage (from 0 to 3) (default transcoding)
transcoding 0 E..V......
ultralowlatency 1 E..V......
lowlatency 2 E..V......
webcam 3 E..V......
-profile <int> E..V...... Set the profile (default main) (from 1 to 1) (default main)
main 1 E..V......
-profile_tier <int> E..V...... Set the profile tier (default main) (from 0 to 1) (default main)
main 0 E..V......
high 1 E..V......
-level <int> E..V...... Set the encoding level (default auto) (from 0 to 186) (default auto)
auto 0 E..V......
1.0 30 E..V......
2.0 60 E..V......
2.1 63 E..V......
3.0 90 E..V......
3.1 93 E..V......
4.0 120 E..V......
4.1 123 E..V......
5.0 150 E..V......
5.1 153 E..V......
5.2 156 E..V......
6.0 180 E..V......
6.1 183 E..V......
6.2 186 E..V......
-quality <int> E..V...... Set the encoding quality (from 0 to 10) (default speed)
balanced 5 E..V......
speed 10 E..V......
quality 0 E..V......
-rc <int> E..V...... Set the rate control mode (from -1 to 3) (default -1)
cqp 0 E..V...... Constant Quantization Parameter
cbr 3 E..V...... Constant Bitrate
vbr_peak 2 E..V...... Peak Contrained Variable Bitrate
vbr_latency 1 E..V...... Latency Constrained Variable Bitrate
-header_insertion_mode <int> E..V...... Set header insertion mode (from 0 to 2) (default none)
none 0 E..V......
gop 1 E..V......
idr 2 E..V......
-gops_per_idr <int> E..V...... GOPs per IDR 0-no IDR will be inserted (from 0 to INT_MAX) (default 60)
-preanalysis <boolean> E..V...... Enable preanalysis (default false)
-vbaq <boolean> E..V...... Enable VBAQ (default false)
-enforce_hrd <boolean> E..V...... Enforce HRD (default false)
-filler_data <boolean> E..V...... Filler Data Enable (default false)
-max_au_size <int> E..V...... Maximum Access Unit Size for rate control (in bits) (from 0 to INT_MAX) (default 0)
-min_qp_i <int> E..V...... min quantization parameter for I-frame (from -1 to 51) (default -1)
-max_qp_i <int> E..V...... max quantization parameter for I-frame (from -1 to 51) (default -1)
-min_qp_p <int> E..V...... min quantization parameter for P-frame (from -1 to 51) (default -1)
-max_qp_p <int> E..V...... max quantization parameter for P-frame (from -1 to 51) (default -1)
-qp_p <int> E..V...... quantization parameter for P-frame (from -1 to 51) (default -1)
-qp_i <int> E..V...... quantization parameter for I-frame (from -1 to 51) (default -1)
-skip_frame <boolean> E..V...... Rate Control Based Frame Skip (default false)
-me_half_pel <boolean> E..V...... Enable ME Half Pixel (default true)
-me_quarter_pel <boolean> E..V...... Enable ME Quarter Pixel (default true)
-aud <boolean> E..V...... Inserts AU Delimiter NAL unit (default false)
-log_to_dbg <boolean> E..V...... Enable AMF logging to debug output (default false)
이상입니다.
HEVC 코덱 설정->튜닝 옵션별 각 화질 비교
