안녕하세요. 평소에 샤나인코더를 잘 사용하다가 특정 매개변수가 적용되지 않아 이유가 궁금해 글을 작성하게 되었습니다.
제가 인코딩하는 영상 중에는 비디오 색상 범위가 제한인 경우도 있고 전체인 경우도 있습니다.
그런데 h264_nvenc로 영상을 인코딩할 경우 비디오 색상 범위가 전부 제한으로 변경되어서 출력됩니다.
-bsf:v h264_metadata=video_full_range_flag=-1 변수를 넣어 입력 파일의 비디오 색상 범위를 출력 파일에도 적용되도록 했지만, 여전히 h264_nvenc로 인코딩 시 출력파일 색상 범위가 제한으로 나옵니다.
이게 황당한게 -bsf:v h264_metadata=video_full_range_flag=1을 넣어 출력 파일의 비디오 색상 범위를 전체로 고정시킬 경우 출력파일에는 전체로 나옵니다. 또한 스트림 복사 설정에 -bsf:v h264_metadata=video_full_range_flag=-1 변수 입력 시 출력파일이 정상적으로 입력파일의 비디오 색상 범위를 따라갑니다.
h264_nvenc 코덱은 -bsf:v h264_metadata=video_full_range_flag=-1 변수를 사용할 수 없나요? ffmpeg에 샤나인코더에서 사용하는 매개변수를 동일하게 맞출 경우 해당 변수가 작동되어 출력파일의 비디오 색상 범위가 전체로 나오는 것을 확인했습니다. 샤나인코더는 안돼요...
샤나인코더에서 사용한 매개변수 정보와 테스트에 활용한 영상 정보를 같이 첨부합니다.
인코딩 매개변수 정보
-f mp4 -c:v h264_nvenc -c:a copy -sn -cq 35 -profile:v high -level auto -preset p7 -tune:v hq -bsf:v h264_metadata=video_full_range_flag=-1
테스트 영상 정보
General
Complete name : D:\video\encoder\test.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom (isom/iso2/avc1/mp41)
File size : 22.1 MiB
Duration : 30 s 67 ms
Overall bit rate mode : Constant
Overall bit rate : 6 169 kb/s
Writing application : ShanaEncoder
Video
ID : 1
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L4.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, Reference frames : 4 frames
Format settings, GOP : M=3, N=120
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 30 s 67 ms
Source duration : 30 s 34 ms
Bit rate mode : Constant
Bit rate : 6 033 kb/s
Width : 1 920 pixels
Height : 1 080 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 60.000 FPS
Minimum frame rate : 58.824 FPS
Maximum frame rate : 62.500 FPS
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.048
Stream size : 21.6 MiB (98%)
Source stream size : 21.6 MiB (98%)
Color range : Full
Color primaries : BT.709
Transfer characteristics : BT.709
Matrix coefficients : BT.709
mdhd_Duration : 30067
Codec configuration box : avcC
Audio
ID : 2
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Codec ID : mp4a-40-2
Duration : 30 s 12 ms
Source duration : 30 s 59 ms
Bit rate mode : Constant
Bit rate : 128 kb/s
Channel(s) : 2 channels
Channel layout : L R
Sampling rate : 48.0 kHz
Frame rate : 46.875 FPS (1024 SPF)
Compression mode : Lossy
Stream size : 469 KiB (2%)
Source stream size : 470 KiB (2%)
Default : Yes
Alternate group : 1
자세한 정보
General
Count : 331
Count of stream of this kind : 1
Kind of stream : General
Kind of stream : General
Stream identifier : 0
Count of video streams : 1
Count of audio streams : 1
Video_Format_List : AVC
Video_Format_WithHint_List : AVC
Codecs Video : AVC
Audio_Format_List : AAC LC
Audio_Format_WithHint_List : AAC LC
Audio codecs : AAC LC
Complete name : D:\video\encoder\test.mp4
Folder name : D:\video\encoder
File name extension : test.mp4
File name : test
File extension : mp4
Format : MPEG-4
Format : MPEG-4
Format/Extensions usually used : braw mov mp4 m4v m4a m4b m4p m4r 3ga 3gpa 3gpp 3gp 3gpp2 3g2 k3g jpm jpx mqv ismv isma ismt f4a f4b f4v
Commercial name : MPEG-4
Format profile : Base Media
Internet media type : video/mp4
Codec ID : isom
Codec ID : isom (isom/iso2/avc1/mp41)
Codec ID/Url : http://www.apple.com/quicktime/download/standalone.html
CodecID_Compatible : isom/iso2/avc1/mp41
File size : 23183545
File size : 22.1 MiB
File size : 22 MiB
File size : 22 MiB
File size : 22.1 MiB
File size : 22.11 MiB
Duration : 30067
Duration : 30 s 67 ms
Duration : 30 s 67 ms
Duration : 30 s 67 ms
Duration : 00:00:30.067
Duration : 00:00:30:02
Duration : 00:00:30.067 (00:00:30:02)
Overall bit rate mode : CBR
Overall bit rate mode : Constant
Overall bit rate : 6168502
Overall bit rate : 6 169 kb/s
Frame rate : 60.000
Frame rate : 60.000 FPS
Frame count : 1802
Stream size : 55074
Stream size : 53.8 KiB (0%)
Stream size : 54 KiB
Stream size : 54 KiB
Stream size : 53.8 KiB
Stream size : 53.78 KiB
Stream size : 53.8 KiB (0%)
Proportion of this stream : 0.00238
HeaderSize : 40
DataSize : 23129125
FooterSize : 54380
IsStreamable : No
File creation date : UTC 2022-06-30 08:49:09.843
File creation date (local) : 2022-06-30 17:49:09.843
File last modification date : UTC 2022-06-30 08:49:09.870
File last modification date (local) : 2022-06-30 17:49:09.870
Writing application : ShanaEncoder
Writing application : ShanaEncoder
Video
Count : 383
Count of stream of this kind : 1
Kind of stream : Video
Kind of stream : Video
Stream identifier : 0
StreamOrder : 0
ID : 1
ID : 1
Format : AVC
Format : AVC
Format/Info : Advanced Video Codec
Format/Url : http://developers.videolan.org/x264.html
Commercial name : AVC
Format profile : High@L4.2
Format settings : CABAC / 4 Ref Frames
Format settings, CABAC : Yes
Format settings, CABAC : Yes
Format settings, Reference frames : 4
Format settings, Reference frames : 4 frames
Format settings, GOP : M=3, N=120
Internet media type : video/H264
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 30067
Duration : 30 s 67 ms
Duration : 30 s 67 ms
Duration : 30 s 67 ms
Duration : 00:00:30.067
Duration : 00:00:30:02
Duration : 00:00:30.067 (00:00:30:02)
Source duration : 30034
Source duration : 30 s 34 ms
Source duration : 30 s 34 ms
Source duration : 30 s 34 ms
Source duration : 00:00:30.034
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 6032723
Bit rate : 6 033 kb/s
Width : 1920
Width : 1 920 pixels
Height : 1080
Height : 1 080 pixels
Stored_Height : 1088
Sampled_Width : 1920
Sampled_Height : 1080
Pixel aspect ratio : 1.000
Display aspect ratio : 1.778
Display aspect ratio : 16:9
Rotation : 0.000
Frame rate mode : VFR
Frame rate mode : Variable
Frame rate : 60.000
Frame rate : 60.000 FPS
Minimum frame rate : 58.824
Minimum frame rate : 58.824 FPS
Maximum frame rate : 62.500
Maximum frame rate : 62.500 FPS
Frame count : 1802
Source frame count : 1802
Color space : YUV
Chroma subsampling : 4:2:0
Chroma subsampling : 4:2:0
Bit depth : 8
Bit depth : 8 bits
Scan type : Progressive
Scan type : Progressive
Bits/(Pixel*Frame) : 0.048
Stream size : 22648101
Stream size : 21.6 MiB (98%)
Stream size : 22 MiB
Stream size : 22 MiB
Stream size : 21.6 MiB
Stream size : 21.60 MiB
Stream size : 21.6 MiB (98%)
Proportion of this stream : 0.97690
Source stream size : 22648101
Source stream size : 21.6 MiB (98%)
Source stream size : 22 MiB
Source stream size : 22 MiB
Source stream size : 21.6 MiB
Source stream size : 21.60 MiB
Source stream size : 21.6 MiB (98%)
Source_StreamSize_Proportion : 0.97690
Buffer size : 6000000
colour_description_present : Yes
colour_description_present_Source : Container / Stream
Color range : Full
colour_range_Source : Container / Stream
Color primaries : BT.709
colour_primaries_Source : Container / Stream
Transfer characteristics : BT.709
transfer_characteristics_Source : Container / Stream
Matrix coefficients : BT.709
matrix_coefficients_Source : Container / Stream
Source_Delay : -33
Source_Delay_Source : Container
mdhd_Duration : 30067
Codec configuration box : avcC
Audio
Count : 280
Count of stream of this kind : 1
Kind of stream : Audio
Kind of stream : Audio
Stream identifier : 0
StreamOrder : 1
ID : 2
ID : 2
Format : AAC
Format : AAC LC
Format/Info : Advanced Audio Codec Low Complexity
Commercial name : AAC
Format_AdditionalFeatures : LC
Codec ID : mp4a-40-2
Duration : 30012
Duration : 30 s 12 ms
Duration : 30 s 12 ms
Duration : 30 s 12 ms
Duration : 00:00:30.012
Duration : 00:00:29:44
Duration : 00:00:30.012 (00:00:29:44)
Source duration : 30059
Source duration : 30 s 59 ms
Source duration : 30 s 59 ms
Source duration : 30 s 59 ms
Source duration : 00:00:30.059
Bit rate mode : CBR
Bit rate mode : Constant
Bit rate : 128020
Bit rate : 128 kb/s
Channel(s) : 2
Channel(s) : 2 channels
Channel positions : Front: L R
Channel positions : 2/0/0
Channel layout : L R
Samples per frame : 1024
Sampling rate : 48000
Sampling rate : 48.0 kHz
Samples count : 1440576
Frame rate : 46.875
Frame rate : 46.875 FPS (1024 SPF)
Frame count : 1407
Source frame count : 1409
Compression mode : Lossy
Compression mode : Lossy
Stream size : 480370
Stream size : 469 KiB (2%)
Stream size : 469 KiB
Stream size : 469 KiB
Stream size : 469 KiB
Stream size : 469.1 KiB
Stream size : 469 KiB (2%)
Proportion of this stream : 0.02072
Source stream size : 481016
Source stream size : 470 KiB (2%)
Source stream size : 470 KiB
Source stream size : 470 KiB
Source stream size : 470 KiB
Source stream size : 469.7 KiB
Source stream size : 470 KiB (2%)
Source_StreamSize_Proportion : 0.02075
Default : Yes
Default : Yes
Alternate group : 1
Alternate group : 1
MediaInfoLib - v21.09