Microsoft MVP성태의 닷넷 이야기
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정성태 (techsharer at outlook.com)
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(연관된 글이 2개 있습니다.)
(시리즈 글이 7개 있습니다.)
.NET Framework: 288. FFmpeg.exe를 이용한 C# 동영상 인코더 예제
; https://www.sysnet.pe.kr/2/0/1210

개발 환경 구성: 622. vcpkg로 ffmpeg를 빌드하는 경우 생성될 구성 요소 제어하는 방법
; https://www.sysnet.pe.kr/2/0/12900

개발 환경 구성: 623. ffmpeg.exe를 사용해 비디오 파일의 이미지를 PGM(Portable Gray Map) 파일 포맷으로 출력하는 방법
; https://www.sysnet.pe.kr/2/0/12912

개발 환경 구성: 626. ffmpeg.exe를 사용해 비디오 파일을 MPEG1 포맷으로 변경하는 방법
; https://www.sysnet.pe.kr/2/0/12923

개발 환경 구성: 634. ffmpeg.exe - 기존 동영상 컨테이너에 다중 스트림을 추가하는 방법
; https://www.sysnet.pe.kr/2/0/12947

개발 환경 구성: 636. ffmpeg.exe를 이용해 planar 포맷의 데이터를 packed 형식으로 변환하는 방법?
; https://www.sysnet.pe.kr/2/0/12957

개발 환경 구성: 639. ffmpeg.exe - Intel Quick Sync Video(qsv)를 이용한 인코딩
; https://www.sysnet.pe.kr/2/0/12973




ffmpeg.exe를 이용해 planar 포맷의 데이터를 packed 형식으로 변환하는 방법?

결론 먼저 말하면, 없습니다. (없는 것 같습니다. ^^)




지난 글에서 다룬 예제는,

ffmpeg.exe - 기존 동영상 컨테이너에 다중 스트림을 추가하는 방법
; https://www.sysnet.pe.kr/2/0/12947

ffprobe로 확인했을 때 "yuv420p", 즉 AVPixelFormat이 AV_PIX_FMT_YUV420P 형식의 데이터입니다.

//
// Summary:
//     planar YUV 4:2:0, 12bpp, (1 Cr & Cb sample per 2x2 Y samples)
AV_PIX_FMT_YUV420P = 0,

이것을 혹시 다른 형식으로 변환할 수 있을까요? ^^ 이를 위해서는 ffmpeg의 -pix_fmt 옵션을 이용하면 되는데 해당 옵션에 가능한 값은 대충 이렇습니다.

c:\temp> ffmpeg -pix_fmts
...[생략]...
Pixel formats:
I.... = Supported Input  format for conversion
.O... = Supported Output format for conversion
..H.. = Hardware accelerated format
...P. = Paletted format
....B = Bitstream format
FLAGS NAME            NB_COMPONENTS BITS_PER_PIXEL
-----
IO... yuv420p                3            12
IO... yuyv422                3            16
IO... rgb24                  3            24
IO... bgr24                  3            24
IO... yuv422p                3            16
IO... yuv444p                3            24
IO... yuv410p                3             9
IO... yuv411p                3            12
IO... gray                   1             8
IO..B monow                  1             1
IO..B monob                  1             1
I..P. pal8                   1             8
IO... yuvj420p               3            12
IO... yuvj422p               3            16
IO... yuvj444p               3            24
IO... uyvy422                3            16
..... uyyvyy411              3            12
IO... bgr8                   3             8
.O..B bgr4                   3             4
IO... bgr4_byte              3             4
IO... rgb8                   3             8
.O..B rgb4                   3             4
IO... rgb4_byte              3             4
IO... nv12                   3            12
IO... nv21                   3            12
IO... argb                   4            32
IO... rgba                   4            32
IO... abgr                   4            32
IO... bgra                   4            32
IO... gray16be               1            16
IO... gray16le               1            16
IO... yuv440p                3            16
IO... yuvj440p               3            16
IO... yuva420p               4            20
IO... rgb48be                3            48
IO... rgb48le                3            48
IO... rgb565be               3            16
IO... rgb565le               3            16
IO... rgb555be               3            15
IO... rgb555le               3            15
IO... bgr565be               3            16
IO... bgr565le               3            16
IO... bgr555be               3            15
IO... bgr555le               3            15
..H.. vaapi_moco             0             0
..H.. vaapi_idct             0             0
..H.. vaapi_vld              0             0
IO... yuv420p16le            3            24
IO... yuv420p16be            3            24
IO... yuv422p16le            3            32
IO... yuv422p16be            3            32
IO... yuv444p16le            3            48
IO... yuv444p16be            3            48
..H.. dxva2_vld              0             0
IO... rgb444le               3            12
IO... rgb444be               3            12
IO... bgr444le               3            12
IO... bgr444be               3            12
IO... ya8                    2            16
IO... bgr48be                3            48
IO... bgr48le                3            48
IO... yuv420p9be             3            13
IO... yuv420p9le             3            13
IO... yuv420p10be            3            15
IO... yuv420p10le            3            15
IO... yuv422p10be            3            20
IO... yuv422p10le            3            20
IO... yuv444p9be             3            27
IO... yuv444p9le             3            27
IO... yuv444p10be            3            30
IO... yuv444p10le            3            30
IO... yuv422p9be             3            18
IO... yuv422p9le             3            18
IO... gbrp                   3            24
IO... gbrp9be                3            27
IO... gbrp9le                3            27
IO... gbrp10be               3            30
IO... gbrp10le               3            30
IO... gbrp16be               3            48
IO... gbrp16le               3            48
IO... yuva422p               4            24
IO... yuva444p               4            32
IO... yuva420p9be            4            22
IO... yuva420p9le            4            22
IO... yuva422p9be            4            27
IO... yuva422p9le            4            27
IO... yuva444p9be            4            36
IO... yuva444p9le            4            36
IO... yuva420p10be           4            25
IO... yuva420p10le           4            25
IO... yuva422p10be           4            30
IO... yuva422p10le           4            30
IO... yuva444p10be           4            40
IO... yuva444p10le           4            40
IO... yuva420p16be           4            40
IO... yuva420p16le           4            40
IO... yuva422p16be           4            48
IO... yuva422p16le           4            48
IO... yuva444p16be           4            64
IO... yuva444p16le           4            64
..H.. vdpau                  0             0
IO... xyz12le                3            36
IO... xyz12be                3            36
..... nv16                   3            16
..... nv20le                 3            20
..... nv20be                 3            20
IO... rgba64be               4            64
IO... rgba64le               4            64
IO... bgra64be               4            64
IO... bgra64le               4            64
IO... yvyu422                3            16
IO... ya16be                 2            32
IO... ya16le                 2            32
IO... gbrap                  4            32
IO... gbrap16be              4            64
IO... gbrap16le              4            64
..H.. qsv                    0             0
..H.. mmal                   0             0
..H.. d3d11va_vld            0             0
..H.. cuda                   0             0
IO... 0rgb                   3            24
IO... rgb0                   3            24
IO... 0bgr                   3            24
IO... bgr0                   3            24
IO... yuv420p12be            3            18
IO... yuv420p12le            3            18
IO... yuv420p14be            3            21
IO... yuv420p14le            3            21
IO... yuv422p12be            3            24
IO... yuv422p12le            3            24
IO... yuv422p14be            3            28
IO... yuv422p14le            3            28
IO... yuv444p12be            3            36
IO... yuv444p12le            3            36
IO... yuv444p14be            3            42
IO... yuv444p14le            3            42
IO... gbrp12be               3            36
IO... gbrp12le               3            36
IO... gbrp14be               3            42
IO... gbrp14le               3            42
IO... yuvj411p               3            12
I.... bayer_bggr8            3             8
I.... bayer_rggb8            3             8
I.... bayer_gbrg8            3             8
I.... bayer_grbg8            3             8
I.... bayer_bggr16le         3            16
I.... bayer_bggr16be         3            16
I.... bayer_rggb16le         3            16
I.... bayer_rggb16be         3            16
I.... bayer_gbrg16le         3            16
I.... bayer_gbrg16be         3            16
I.... bayer_grbg16le         3            16
I.... bayer_grbg16be         3            16
..H.. xvmc                   0             0
IO... yuv440p10le            3            20
IO... yuv440p10be            3            20
IO... yuv440p12le            3            24
IO... yuv440p12be            3            24
IO... ayuv64le               4            64
..... ayuv64be               4            64
..H.. videotoolbox_vld       0             0
IO... p010le                 3            15
IO... p010be                 3            15
IO... gbrap12be              4            48
IO... gbrap12le              4            48
IO... gbrap10be              4            40
IO... gbrap10le              4            40
..H.. mediacodec             0             0
IO... gray12be               1            12
IO... gray12le               1            12
IO... gray10be               1            10
IO... gray10le               1            10
IO... p016le                 3            24
IO... p016be                 3            24
..H.. d3d11                  0             0
IO... gray9be                1             9
IO... gray9le                1             9
IO... gbrpf32be              3            96
IO... gbrpf32le              3            96
IO... gbrapf32be             4            128
IO... gbrapf32le             4            128
..H.. drm_prime              0             0
..H.. opencl                 0             0
IO... gray14be               1            14
IO... gray14le               1            14
IO... grayf32be              1            32
IO... grayf32le              1            32
IO... yuva422p12be           4            36
IO... yuva422p12le           4            36
IO... yuva444p12be           4            48
IO... yuva444p12le           4            48
IO... nv24                   3            24
IO... nv42                   3            24
..H.. vulkan                 0             0
..... y210be                 3            20
I.... y210le                 3            20

위의 목록 중에 packed 형식인 것으로 yuyv422 항목을 선택해,

//
// Summary:
//     packed YUV 4:2:2, 16bpp, Y0 Cb Y1 Cr
AV_PIX_FMT_YUYV422 = 1,

진행했더니,

D:\media_sample> ffmpeg  -i output2.mp4 -pix_fmt yuyv422 output2_yuv422.mp4
ffmpeg version 4.3.2-2021-02-27-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: ...[생략]...
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'output2.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
  Duration: 00:03:07.95, start: 0.000000, bitrate: 3553 kb/s
    Stream #0:0(und): Video: h264 (High) (avc1 / 0x31637661), yuv420p(tv, bt709), 1920x1080 [SAR 1:1 DAR 16:9], 3070 kb/s, 29.97 fps, 29.97 tbr, 16k tbn, 59.94 tbc (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
    Stream #0:2(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
    Stream #0:3(eng): Video: vp9 (Profile 0) (vp09 / 0x39307076), yuv420p(tv, bt709), 640x360, 212 kb/s, SAR 1:1 DAR 16:9, 29.97 fps, 29.97 tbr, 16k tbn, 16k tbc (default)
    Metadata:
      handler_name    : VideoHandler
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (aac (native) -> aac (native))
Press [q] to stop, [?] for help
Incompatible pixel format 'yuyv422' for codec 'libx264', auto-selecting format 'yuv422p'
[libx264 @ 000001fc16124ac0] using SAR=1/1
[libx264 @ 000001fc16124ac0] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 000001fc16124ac0] profile High 4:2:2, level 4.0, 4:2:2, 8-bit
[libx264 @ 000001fc16124ac0] 264 - core 161 r3048 b86ae3c - H.264/MPEG-4 AVC codec - Copyleft 2003-2021 - http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0 analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=-2 threads=34 lookahead_threads=5 sliced_threads=0 nr=0 decimate=1 interlaced=0 bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0 direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40 intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0 qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00
Output #0, mp4, to 'output2_yuv422.mp4':
  Metadata:
    major_brand     : isom
    minor_version   : 512
    compatible_brands: isomiso2avc1mp41
    encoder         : Lavf58.45.100
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv422p, 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 29.97 fps, 30k tbn, 29.97 tbc (default)
    Metadata:
      handler_name    : ISO Media file produced by Google Inc.
      encoder         : Lavc58.91.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: N/A
    Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
    Metadata:
      handler_name    : SoundHandler
      encoder         : Lavc58.91.100 aac
frame= 5633 fps=170 q=-1.0 Lsize=   86606kB time=00:03:07.94 bitrate=3774.9kbits/s speed=5.67x
video:83453kB audio:2953kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.232302%
[libx264 @ 000001fc16124ac0] frame I:80    Avg QP:17.86  size: 37597
[libx264 @ 000001fc16124ac0] frame P:1820  Avg QP:20.95  size: 23077
[libx264 @ 000001fc16124ac0] frame B:3733  Avg QP:23.39  size: 10835
[libx264 @ 000001fc16124ac0] consecutive B-frames:  5.4% 15.4%  9.9% 69.3%
[libx264 @ 000001fc16124ac0] mb I  I16..4: 40.2% 57.2%  2.6%
[libx264 @ 000001fc16124ac0] mb P  I16..4: 15.8% 31.6%  0.7%  P16..4: 24.1%  3.9%  1.4%  0.0%  0.0%    skip:22.4%
[libx264 @ 000001fc16124ac0] mb B  I16..4:  2.6%  4.1%  0.2%  B16..8: 29.4%  2.4%  0.3%  direct: 5.2%  skip:55.8%  L0:47.8% L1:49.3% BI: 2.8%
[libx264 @ 000001fc16124ac0] 8x8 transform intra:63.7% inter:91.3%
[libx264 @ 000001fc16124ac0] coded y,uvDC,uvAC intra: 22.5% 47.4% 1.7% inter: 6.0% 15.7% 0.0%
[libx264 @ 000001fc16124ac0] i16 v,h,dc,p: 39% 21% 11% 29%
[libx264 @ 000001fc16124ac0] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43% 13% 26%  2%  3%  6%  2%  4%  1%
[libx264 @ 000001fc16124ac0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 43%  7% 10%  3%  8% 17%  4%  7%  1%
[libx264 @ 000001fc16124ac0] i8c dc,h,v,p: 45% 16% 29% 11%
[libx264 @ 000001fc16124ac0] Weighted P-Frames: Y:8.0% UV:1.6%
[libx264 @ 000001fc16124ac0] ref P L0: 68.3%  7.8% 17.0%  6.4%  0.6%
[libx264 @ 000001fc16124ac0] ref B L0: 91.9%  6.7%  1.5%
[libx264 @ 000001fc16124ac0] ref B L1: 96.9%  3.1%
[libx264 @ 000001fc16124ac0] kb/s:3637.27
[aac @ 000001fc15c7d5c0] Qavg: 204.445

libx264 코덱이 yuyv422를 지원하지 않아 자동으로 yuv422p를 선택해 트랜스코딩 하고 있습니다. 실제로 ffprobe로 확인해 보면 "yuv422p"로 출력이 됩니다.

이후 다른 packed 형식의 uyvy422, uyyvyy411 옵션을 지정해도 마찬가지입니다. 결국 libx264 코덱에서는 packed 형식은 볼 일이 없는 것입니다.




그렇다면 코덱이 다른 것은 어떨까요? 혹시 예전 MPEG1 비디오라면 가능할까요?

ffmpeg.exe를 사용해 비디오 파일을 MPEG1 포맷으로 변경하는 방법
; https://www.sysnet.pe.kr/2/0/12923

그런데 ^^; 마찬가지의 결과가 나오는군요.

Incompatible pixel format 'yuyv422' for codec 'mpeg1video', auto-selecting format 'yuv420p'

검색해 보면, ffmpeg 명령어에서 인코더가 제공하는 pixel format을 확인하는 방법이 나옵니다. 아래는 mpeg1video 코덱에 대해 적용한 결과입니다.

D:\media_sample> ffmpeg -h encoder=mpeg1video
ffmpeg version 4.3.2-2021-02-27-full_build-www.gyan.dev Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10.2.0 (Rev6, Built by MSYS2 project)
  configuration: ...[생략]...
Encoder mpeg1video [MPEG-1 video]:
    General capabilities: delay threads
    Threading capabilities: slice
    Supported framerates: 24000/1001 24/1 25/1 30000/1001 30/1 50/1 60000/1001 60/1 15/1 5/1 10/1 12/1 15/1
    Supported pixel formats: yuv420p
...[생략]...

반면 libx264의 경우에는 다음과 같이 제법 많습니다.

Supported pixel formats: yuv420p yuvj420p yuv422p yuvj422p yuv444p yuvj444p nv12 nv16 nv21 yuv420p10le yuv422p10le yuv444p10le nv20le gray gray10le

따라서 위의 목록에 따른 트랜스코딩은 가능하지만,

c:\temp> ffmpeg -i output2.mp4 -pix_fmt yuv444p output2_yuv444p.mp4

packed 형식으로의 변환은 가능하지 않습니다.




"ffmpeg -codecs" 명령어를 이용해 코덱 종류를 나열해 보면 이와 같은데,

D.VI.S 012v                 Uncompressed 4:2:2 10-bit
 D.V.L. 4xm                  4X Movie
 D.VI.S 8bps                 QuickTime 8BPS video
 .EVIL. a64_multi            Multicolor charset for Commodore 64 (encoders: a64multi )
 .EVIL. a64_multi5           Multicolor charset for Commodore 64, extended with 5th color (colram) (encoders: a64multi5 )
 D.V..S aasc                 Autodesk RLE
 D.V.L. agm                  Amuse Graphics Movie
 D.VIL. aic                  Apple Intermediate Codec
 DEVI.S alias_pix            Alias/Wavefront PIX image
 DEVIL. amv                  AMV Video
 D.V.L. anm                  Deluxe Paint Animation
 D.V.L. ansi                 ASCII/ANSI art
 DEV..S apng                 APNG (Animated Portable Network Graphics) image
 D.V.L. arbc                 Gryphon's Anim Compressor
 DEVIL. asv1                 ASUS V1
 DEVIL. asv2                 ASUS V2
 D.VIL. aura                 Auravision AURA
 D.VIL. aura2                Auravision Aura 2
 DEV.L. av1                  Alliance for Open Media AV1 (decoders: libdav1d libaom-av1 ) (encoders: libaom-av1 librav1e )
 D.V... avrn                 Avid AVI Codec
 DEVI.S avrp                 Avid 1:1 10-bit RGB Packer
 D.V.L. avs                  AVS (Audio Video Standard) video
 ..V.L. avs2                 AVS2-P2/IEEE1857.4
 DEVI.S avui                 Avid Meridien Uncompressed
 DEVI.S ayuv                 Uncompressed packed MS 4:4:4:4
 D.V.L. bethsoftvid          Bethesda VID video
 D.V.L. bfi                  Brute Force & Ignorance
 D.V.L. binkvideo            Bink video
 D.VI.. bintext              Binary text
 D.VI.S bitpacked            Bitpacked
 DEVI.S bmp                  BMP (Windows and OS/2 bitmap)
 D.V..S bmv_video            Discworld II BMV video
 D.VI.S brender_pix          BRender PIX image
 D.V.L. c93                  Interplay C93
 D.V.L. cavs                 Chinese AVS (Audio Video Standard) (AVS1-P2, JiZhun profile)
 D.V.L. cdgraphics           CD Graphics video
 D.V..S cdtoons              CDToons video
 D.VIL. cdxl                 Commodore CDXL video
 D.V.L. cfhd                 Cineform HD
 DEV.L. cinepak              Cinepak
 D.V.L. clearvideo           Iterated Systems ClearVideo
 DEVIL. cljr                 Cirrus Logic AccuPak
 D.VI.S cllc                 Canopus Lossless Codec
 D.V.L. cmv                  Electronic Arts CMV video (decoders: eacmv )
 D.V... cpia                 CPiA video format
 D.V..S cscd                 CamStudio (decoders: camstudio )
 D.VIL. cyuv                 Creative YUV (CYUV)
 ..V.LS daala                Daala
 D.VILS dds                  DirectDraw Surface image decoder
 D.V.L. dfa                  Chronomaster DFA
 DEV.LS dirac                Dirac (encoders: vc2 )
 DEVIL. dnxhd                VC3/DNxHD
 DEVI.S dpx                  DPX (Digital Picture Exchange) image
 D.V.L. dsicinvideo          Delphine Software International CIN video
 DEVIL. dvvideo              DV (Digital Video)
 D.V..S dxa                  Feeble Files/ScummVM DXA
 D.VI.S dxtory               Dxtory
 D.VIL. dxv                  Resolume DXV
 D.V.L. escape124            Escape 124
 D.V.L. escape130            Escape 130
 D.VILS exr                  OpenEXR image
 DEV..S ffv1                 FFmpeg video codec #1
 DEVI.S ffvhuff              Huffyuv FFmpeg variant
 D.V.L. fic                  Mirillis FIC
 DEVI.S fits                 FITS (Flexible Image Transport System)
 DEV..S flashsv              Flash Screen Video v1
 DEV.L. flashsv2             Flash Screen Video v2
 D.V..S flic                 Autodesk Animator Flic video
 DEV.L. flv1                 FLV / Sorenson Spark / Sorenson H.263 (Flash Video) (decoders: flv ) (encoders: flv )
 D.V..S fmvc                 FM Screen Capture Codec
 D.VI.S fraps                Fraps
 D.VI.S frwu                 Forward Uncompressed
 D.V.L. g2m                  Go2Meeting
 D.V.L. gdv                  Gremlin Digital Video
 DEV..S gif                  CompuServe GIF (Graphics Interchange Format)
 DEV.L. h261                 H.261
 DEV.L. h263                 H.263 / H.263-1996, H.263+ / H.263-1998 / H.263 version 2
 D.V.L. h263i                Intel H.263
 DEV.L. h263p                H.263+ / H.263-1998 / H.263 version 2
 DEV.LS h264                 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_qsv h264_cuvid ) (encoders: libx264 libx264rgb h264_amf h264_nvenc h264_qsv nvenc nvenc_h264 )
 DEVIL. hap                  Vidvox Hap
 DEV.L. hevc                 H.265 / HEVC (High Efficiency Video Coding) (decoders: hevc hevc_qsv hevc_cuvid ) (encoders: libx265 nvenc_hevc hevc_amf hevc_nvenc hevc_qsv )
 D.V.L. hnm4video            HNM 4 video
 D.VIL. hq_hqa               Canopus HQ/HQA
 D.VIL. hqx                  Canopus HQX
 DEVI.S huffyuv              HuffYUV
 D.VI.S hymt                 HuffYUV MT
 D.V.L. idcin                id Quake II CIN video (decoders: idcinvideo )
 D.VI.. idf                  iCEDraw text
 D.V.L. iff_ilbm             IFF ACBM/ANIM/DEEP/ILBM/PBM/RGB8/RGBN (decoders: iff )
 D.V.L. imm4                 Infinity IMM4
 D.V.L. imm5                 Infinity IMM5
 D.V.L. indeo2               Intel Indeo 2
 D.V.L. indeo3               Intel Indeo 3
 D.V.L. indeo4               Intel Indeo Video Interactive 4
 D.V.L. indeo5               Intel Indeo Video Interactive 5
 D.V.L. interplayvideo       Interplay MVE video
 DEVILS jpeg2000             JPEG 2000 (decoders: jpeg2000 libopenjpeg ) (encoders: jpeg2000 libopenjpeg )
 DEVILS jpegls               JPEG-LS
 D.VIL. jv                   Bitmap Brothers JV video
 D.V.L. kgv1                 Kega Game Video
 D.V.L. kmvc                 Karl Morton's video codec
 D.VI.S lagarith             Lagarith lossless
 .EVI.S ljpeg                Lossless JPEG
 D.VI.S loco                 LOCO
 D.V.L. lscr                 LEAD Screen Capture
 D.VI.S m101                 Matrox Uncompressed SD
 D.V.L. mad                  Electronic Arts Madcow Video (decoders: eamad )
 DEVI.S magicyuv             MagicYUV video
 D.VIL. mdec                 Sony PlayStation MDEC (Motion DECoder)
 D.V.L. mimic                Mimic
 DEVIL. mjpeg                Motion JPEG (decoders: mjpeg mjpeg_cuvid mjpeg_qsv ) (encoders: mjpeg mjpeg_qsv )
 D.VIL. mjpegb               Apple MJPEG-B
 D.V.L. mmvideo              American Laser Games MM Video
 D.V.L. motionpixels         Motion Pixels video
 DEV.L. mpeg1video           MPEG-1 video (decoders: mpeg1video mpeg1_cuvid )
 DEV.L. mpeg2video           MPEG-2 video (decoders: mpeg2video mpegvideo mpeg2_qsv mpeg2_cuvid ) (encoders: mpeg2video mpeg2_qsv )
 DEV.L. mpeg4                MPEG-4 part 2 (decoders: mpeg4 mpeg4_cuvid ) (encoders: mpeg4 libxvid )
 D.V.L. msa1                 MS ATC Screen
 D.VI.S mscc                 Mandsoft Screen Capture Codec
 D.V.L. msmpeg4v1            MPEG-4 part 2 Microsoft variant version 1
 DEV.L. msmpeg4v2            MPEG-4 part 2 Microsoft variant version 2
 DEV.L. msmpeg4v3            MPEG-4 part 2 Microsoft variant version 3 (decoders: msmpeg4 ) (encoders: msmpeg4 )
 D.V..S msrle                Microsoft RLE
 D.V.L. mss1                 MS Screen 1
 D.VIL. mss2                 MS Windows Media Video V9 Screen
 DEV.L. msvideo1             Microsoft Video 1
 D.VI.S mszh                 LCL (LossLess Codec Library) MSZH
 D.V.L. mts2                 MS Expression Encoder Screen
 D.V.L. mv30                 MidiVid 3.0
 D.VIL. mvc1                 Silicon Graphics Motion Video Compressor 1
 D.VIL. mvc2                 Silicon Graphics Motion Video Compressor 2
 D.V.L. mvdv                 MidiVid VQ
 D.VIL. mvha                 MidiVid Archive Codec
 D.V..S mwsc                 MatchWare Screen Capture Codec
 D.V.L. mxpeg                Mobotix MxPEG video
 D.VIL. notchlc              NotchLC
 D.V.L. nuv                  NuppelVideo/RTJPEG
 D.V.L. paf_video            Amazing Studio Packed Animation File Video
 DEVI.S pam                  PAM (Portable AnyMap) image
 DEVI.S pbm                  PBM (Portable BitMap) image
 DEVI.S pcx                  PC Paintbrush PCX image
 D.VI.S pfm                  PFM (Portable FloatMap) image
 DEVI.S pgm                  PGM (Portable GrayMap) image
 DEVI.S pgmyuv               PGMYUV (Portable GrayMap YUV) image
 D.VIL. pictor               Pictor/PC Paint
 D.VIL. pixlet               Apple Pixlet
 DEV..S png                  PNG (Portable Network Graphics) image
 DEVI.S ppm                  PPM (Portable PixelMap) image
 DEVIL. prores               Apple ProRes (iCodec Pro) (encoders: prores prores_aw prores_ks )
 D.VIL. prosumer             Brooktree ProSumer Video
 D.VI.S psd                  Photoshop PSD file
 D.VIL. ptx                  V.Flash PTX image
 D.VI.S qdraw                Apple QuickDraw
 D.V.L. qpeg                 Q-team QPEG
 DEV..S qtrle                QuickTime Animation (RLE) video
 DEVI.S r10k                 AJA Kona 10-bit RGB Codec
 DEVI.S r210                 Uncompressed RGB 10-bit
 D.V.L. rasc                 RemotelyAnywhere Screen Capture
 DEVI.S rawvideo             raw video
 D.VIL. rl2                  RL2 video
 DEV.L. roq                  id RoQ video (decoders: roqvideo ) (encoders: roqvideo )
 D.V.L. rpza                 QuickTime video (RPZA)
 D.V..S rscc                 innoHeim/Rsupport Screen Capture Codec
 DEV.L. rv10                 RealVideo 1.0
 DEV.L. rv20                 RealVideo 2.0
 D.V.L. rv30                 RealVideo 3.0
 D.V.L. rv40                 RealVideo 4.0
 D.V.L. sanm                 LucasArts SANM/SMUSH video
 D.V.LS scpr                 ScreenPressor
 D.V..S screenpresso         Screenpresso
 DEVI.S sgi                  SGI image
 D.VI.S sgirle               SGI RLE 8-bit
 D.VI.S sheervideo           BitJazz SheerVideo
 D.V.L. smackvideo           Smacker video (decoders: smackvid )
 D.V.L. smc                  QuickTime Graphics (SMC)
 D.V... smvjpeg              Sigmatel Motion Video
 DEV.LS snow                 Snow
 D.VIL. sp5x                 Sunplus JPEG (SP5X)
 D.VIL. speedhq              NewTek SpeedHQ
 D.VI.S srgc                 Screen Recorder Gold Codec
 DEVI.S sunrast              Sun Rasterfile image
 ..V..S svg                  Scalable Vector Graphics
 DEV.L. svq1                 Sorenson Vector Quantizer 1 / Sorenson Video 1 / SVQ1
 D.V.L. svq3                 Sorenson Vector Quantizer 3 / Sorenson Video 3 / SVQ3
 DEVI.S targa                Truevision Targa image
 D.VI.S targa_y216           Pinnacle TARGA CineWave YUV16
 D.V.L. tdsc                 TDSC
 D.V.L. tgq                  Electronic Arts TGQ video (decoders: eatgq )
 D.V.L. tgv                  Electronic Arts TGV video (decoders: eatgv )
 DEV.L. theora               Theora (encoders: libtheora )
 D.VIL. thp                  Nintendo Gamecube THP video
 D.V.L. tiertexseqvideo      Tiertex Limited SEQ video
 DEVI.S tiff                 TIFF image
 D.VIL. tmv                  8088flex TMV
 D.V.L. tqi                  Electronic Arts TQI video (decoders: eatqi )
 D.V.L. truemotion1          Duck TrueMotion 1.0
 D.V.L. truemotion2          Duck TrueMotion 2.0
 D.VIL. truemotion2rt        Duck TrueMotion 2.0 Real Time
 D.V..S tscc                 TechSmith Screen Capture Codec (decoders: camtasia )
 D.V.L. tscc2                TechSmith Screen Codec 2
 D.VIL. txd                  Renderware TXD (TeXture Dictionary) image
 D.V.L. ulti                 IBM UltiMotion (decoders: ultimotion )
 DEVI.S utvideo              Ut Video
 DEVI.S v210                 Uncompressed 4:2:2 10-bit
 D.VI.S v210x                Uncompressed 4:2:2 10-bit
 DEVI.S v308                 Uncompressed packed 4:4:4
 DEVI.S v408                 Uncompressed packed QT 4:4:4:4
 DEVI.S v410                 Uncompressed 4:4:4 10-bit
 D.V.L. vb                   Beam Software VB
 D.VI.S vble                 VBLE Lossless Codec
 D.V.L. vc1                  SMPTE VC-1 (decoders: vc1 vc1_qsv vc1_cuvid )
 D.V.L. vc1image             Windows Media Video 9 Image v2
 D.VIL. vcr1                 ATI VCR1
 D.VIL. vixl                 Miro VideoXL (decoders: xl )
 D.V.L. vmdvideo             Sierra VMD video
 D.V..S vmnc                 VMware Screen Codec / VMware Video
 D.V.L. vp3                  On2 VP3
 D.V.L. vp4                  On2 VP4
 D.V.L. vp5                  On2 VP5
 D.V.L. vp6                  On2 VP6
 D.V.L. vp6a                 On2 VP6 (Flash version, with alpha channel)
 D.V.L. vp6f                 On2 VP6 (Flash version)
 D.V.L. vp7                  On2 VP7
 DEV.L. vp8                  On2 VP8 (decoders: vp8 libvpx vp8_cuvid vp8_qsv ) (encoders: libvpx )
 DEV.L. vp9                  Google VP9 (decoders: vp9 libvpx-vp9 vp9_cuvid vp9_qsv ) (encoders: libvpx-vp9 vp9_qsv )
 D.V..S wcmv                 WinCAM Motion Video
 DEVILS webp                 WebP (encoders: libwebp_anim libwebp )
 DEV.L. wmv1                 Windows Media Video 7
 DEV.L. wmv2                 Windows Media Video 8
 D.V.L. wmv3                 Windows Media Video 9
 D.V.L. wmv3image            Windows Media Video 9 Image
 D.VIL. wnv1                 Winnov WNV1
 DEV..S wrapped_avframe      AVFrame to AVPacket passthrough
 D.V.L. ws_vqa               Westwood Studios VQA (Vector Quantized Animation) video (decoders: vqavideo )
 D.V.L. xan_wc3              Wing Commander III / Xan
 D.V.L. xan_wc4              Wing Commander IV / Xxan
 D.VI.. xbin                 eXtended BINary text
 DEVI.S xbm                  XBM (X BitMap) image
 DEVIL. xface                X-face image
 D.VI.S xpm                  XPM (X PixMap) image
 DEVI.S xwd                  XWD (X Window Dump) image
 DEVI.S y41p                 Uncompressed YUV 4:1:1 12-bit
 D.VI.S ylc                  YUY2 Lossless Codec
 D.V.L. yop                  Psygnosis YOP Video
 DEVI.S yuv4                 Uncompressed packed 4:2:0
 D.V..S zerocodec            ZeroCodec Lossless Video
 DEVI.S zlib                 LCL (LossLess Codec Library) ZLIB
 DEV..S zmbv                 Zip Motion Blocks Video
 ..AIL. 4gv                  4GV (Fourth Generation Vocoder)
 D.AIL. 8svx_exp             8SVX exponential
 D.AIL. 8svx_fib             8SVX fibonacci
 DEAIL. aac                  AAC (Advanced Audio Coding) (decoders: aac aac_fixed )
 D.AIL. aac_latm             AAC LATM (Advanced Audio Coding LATM syntax)
 DEAIL. ac3                  ATSC A/52A (AC-3) (decoders: ac3 ac3_fixed ) (encoders: ac3 ac3_fixed )
 D.AIL. acelp.kelvin         Sipro ACELP.KELVIN
 D.AIL. adpcm_4xm            ADPCM 4X Movie
 DEAIL. adpcm_adx            SEGA CRI ADX ADPCM
 D.AIL. adpcm_afc            ADPCM Nintendo Gamecube AFC
 D.AIL. adpcm_agm            ADPCM AmuseGraphics Movie AGM
 D.AIL. adpcm_aica           ADPCM Yamaha AICA
 D.AIL. adpcm_argo           ADPCM Argonaut Games
 D.AIL. adpcm_ct             ADPCM Creative Technology
 D.AIL. adpcm_dtk            ADPCM Nintendo Gamecube DTK
 D.AIL. adpcm_ea             ADPCM Electronic Arts
 D.AIL. adpcm_ea_maxis_xa    ADPCM Electronic Arts Maxis CDROM XA
 D.AIL. adpcm_ea_r1          ADPCM Electronic Arts R1
 D.AIL. adpcm_ea_r2          ADPCM Electronic Arts R2
 D.AIL. adpcm_ea_r3          ADPCM Electronic Arts R3
 D.AIL. adpcm_ea_xas         ADPCM Electronic Arts XAS
 DEAIL. adpcm_g722           G.722 ADPCM (decoders: g722 ) (encoders: g722 )
 DEAIL. adpcm_g726           G.726 ADPCM (decoders: g726 ) (encoders: g726 )
 DEAIL. adpcm_g726le         G.726 ADPCM little-endian (decoders: g726le ) (encoders: g726le )
 D.AIL. adpcm_ima_alp        ADPCM IMA High Voltage Software ALP
 D.AIL. adpcm_ima_amv        ADPCM IMA AMV
 D.AIL. adpcm_ima_apc        ADPCM IMA CRYO APC
 D.AIL. adpcm_ima_apm        ADPCM IMA Ubisoft APM
 D.AIL. adpcm_ima_cunning    ADPCM IMA Cunning Developments
 D.AIL. adpcm_ima_dat4       ADPCM IMA Eurocom DAT4
 D.AIL. adpcm_ima_dk3        ADPCM IMA Duck DK3
 D.AIL. adpcm_ima_dk4        ADPCM IMA Duck DK4
 D.AIL. adpcm_ima_ea_eacs    ADPCM IMA Electronic Arts EACS
 D.AIL. adpcm_ima_ea_sead    ADPCM IMA Electronic Arts SEAD
 D.AIL. adpcm_ima_iss        ADPCM IMA Funcom ISS
 D.AIL. adpcm_ima_mtf        ADPCM IMA Capcom's MT Framework
 D.AIL. adpcm_ima_oki        ADPCM IMA Dialogic OKI
 DEAIL. adpcm_ima_qt         ADPCM IMA QuickTime
 D.AIL. adpcm_ima_rad        ADPCM IMA Radical
 D.AIL. adpcm_ima_smjpeg     ADPCM IMA Loki SDL MJPEG
 DEAIL. adpcm_ima_ssi        ADPCM IMA Simon & Schuster Interactive
 DEAIL. adpcm_ima_wav        ADPCM IMA WAV
 D.AIL. adpcm_ima_ws         ADPCM IMA Westwood
 DEAIL. adpcm_ms             ADPCM Microsoft
 D.AIL. adpcm_mtaf           ADPCM MTAF
 D.AIL. adpcm_psx            ADPCM Playstation
 D.AIL. adpcm_sbpro_2        ADPCM Sound Blaster Pro 2-bit
 D.AIL. adpcm_sbpro_3        ADPCM Sound Blaster Pro 2.6-bit
 D.AIL. adpcm_sbpro_4        ADPCM Sound Blaster Pro 4-bit
 DEAIL. adpcm_swf            ADPCM Shockwave Flash
 D.AIL. adpcm_thp            ADPCM Nintendo THP
 D.AIL. adpcm_thp_le         ADPCM Nintendo THP (Little-Endian)
 D.AIL. adpcm_vima           LucasArts VIMA audio
 D.AIL. adpcm_xa             ADPCM CDROM XA
 DEAIL. adpcm_yamaha         ADPCM Yamaha
 D.AIL. adpcm_zork           ADPCM Zork
 DEAI.S alac                 ALAC (Apple Lossless Audio Codec)
 DEAIL. amr_nb               AMR-NB (Adaptive Multi-Rate NarrowBand) (decoders: amrnb libopencore_amrnb ) (encoders: libopencore_amrnb )
 DEAIL. amr_wb               AMR-WB (Adaptive Multi-Rate WideBand) (decoders: amrwb libopencore_amrwb ) (encoders: libvo_amrwbenc )
 D.AI.S ape                  Monkey's Audio
 DEAIL. aptx                 aptX (Audio Processing Technology for Bluetooth)
 DEAIL. aptx_hd              aptX HD (Audio Processing Technology for Bluetooth)
 D.AIL. atrac1               ATRAC1 (Adaptive TRansform Acoustic Coding)
 D.AIL. atrac3               ATRAC3 (Adaptive TRansform Acoustic Coding 3)
 D.AI.S atrac3al             ATRAC3 AL (Adaptive TRansform Acoustic Coding 3 Advanced Lossless)
 D.AIL. atrac3p              ATRAC3+ (Adaptive TRansform Acoustic Coding 3+) (decoders: atrac3plus )
 D.AI.S atrac3pal            ATRAC3+ AL (Adaptive TRansform Acoustic Coding 3+ Advanced Lossless) (decoders: atrac3plusal )
 D.AIL. atrac9               ATRAC9 (Adaptive TRansform Acoustic Coding 9)
 D.AIL. avc                  On2 Audio for Video Codec (decoders: on2avc )
 D.AIL. binkaudio_dct        Bink Audio (DCT)
 D.AIL. binkaudio_rdft       Bink Audio (RDFT)
 D.AIL. bmv_audio            Discworld II BMV audio
 ..AIL. celt                 Constrained Energy Lapped Transform (CELT)
 ..AIL. codec2               codec2 (very low bitrate speech codec)
 DEAIL. comfortnoise         RFC 3389 Comfort Noise
 D.AIL. cook                 Cook / Cooker / Gecko (RealAudio G2)
 D.AIL. derf_dpcm            DPCM Xilam DERF
 D.AIL. dolby_e              Dolby E
 D.AIL. dsd_lsbf             DSD (Direct Stream Digital), least significant bit first
 D.AIL. dsd_lsbf_planar      DSD (Direct Stream Digital), least significant bit first, planar
 D.AIL. dsd_msbf             DSD (Direct Stream Digital), most significant bit first
 D.AIL. dsd_msbf_planar      DSD (Direct Stream Digital), most significant bit first, planar
 D.AIL. dsicinaudio          Delphine Software International CIN audio
 D.AIL. dss_sp               Digital Speech Standard - Standard Play mode (DSS SP)
 D.AI.S dst                  DST (Direct Stream Transfer)
 DEAILS dts                  DCA (DTS Coherent Acoustics) (decoders: dca ) (encoders: dca )
 D.AIL. dvaudio              DV audio
 DEAIL. eac3                 ATSC A/52B (AC-3, E-AC-3)
 D.AIL. evrc                 EVRC (Enhanced Variable Rate Codec)
 DEAI.S flac                 FLAC (Free Lossless Audio Codec)
 DEAIL. g723_1               G.723.1
 D.AIL. g729                 G.729
 D.AIL. gremlin_dpcm         DPCM Gremlin
 DEAIL. gsm                  GSM (decoders: gsm libgsm ) (encoders: libgsm )
 DEAIL. gsm_ms               GSM Microsoft variant (decoders: gsm_ms libgsm_ms ) (encoders: libgsm_ms )
 D.AIL. hca                  CRI HCA
 D.AIL. hcom                 HCOM Audio
 D.AIL. iac                  IAC (Indeo Audio Coder)
 DEAIL. ilbc                 iLBC (Internet Low Bitrate Codec) (decoders: ilbc libilbc ) (encoders: libilbc )
 D.AIL. imc                  IMC (Intel Music Coder)
 D.AIL. interplay_dpcm       DPCM Interplay
 D.AIL. interplayacm         Interplay ACM
 D.AIL. mace3                MACE (Macintosh Audio Compression/Expansion) 3:1
 D.AIL. mace6                MACE (Macintosh Audio Compression/Expansion) 6:1
 D.AIL. metasound            Voxware MetaSound
 DEAI.S mlp                  MLP (Meridian Lossless Packing)
 D.AIL. mp1                  MP1 (MPEG audio layer 1) (decoders: mp1 mp1float )
 DEAIL. mp2                  MP2 (MPEG audio layer 2) (decoders: mp2 mp2float ) (encoders: mp2 mp2fixed libtwolame )
 DEAIL. mp3                  MP3 (MPEG audio layer 3) (decoders: mp3float mp3 ) (encoders: libmp3lame libshine )
 D.AIL. mp3adu               ADU (Application Data Unit) MP3 (MPEG audio layer 3) (decoders: mp3adufloat mp3adu )
 D.AIL. mp3on4               MP3onMP4 (decoders: mp3on4float mp3on4 )
 D.AI.S mp4als               MPEG-4 Audio Lossless Coding (ALS) (decoders: als )
 ..A.L. mpegh_3d_audio       MPEG-H 3D Audio
 D.AIL. musepack7            Musepack SV7 (decoders: mpc7 )
 D.AIL. musepack8            Musepack SV8 (decoders: mpc8 )
 DEAIL. nellymoser           Nellymoser Asao
 DEAIL. opus                 Opus (Opus Interactive Audio Codec) (decoders: opus libopus ) (encoders: opus libopus )
 D.AIL. paf_audio            Amazing Studio Packed Animation File Audio
 DEAIL. pcm_alaw             PCM A-law / G.711 A-law
 D.AI.S pcm_bluray           PCM signed 16|20|24-bit big-endian for Blu-ray media
 DEAI.S pcm_dvd              PCM signed 20|24-bit big-endian
 D.AI.S pcm_f16le            PCM 16.8 floating point little-endian
 D.AI.S pcm_f24le            PCM 24.0 floating point little-endian
 DEAI.S pcm_f32be            PCM 32-bit floating point big-endian
 DEAI.S pcm_f32le            PCM 32-bit floating point little-endian
 DEAI.S pcm_f64be            PCM 64-bit floating point big-endian
 DEAI.S pcm_f64le            PCM 64-bit floating point little-endian
 D.AI.S pcm_lxf              PCM signed 20-bit little-endian planar
 DEAIL. pcm_mulaw            PCM mu-law / G.711 mu-law
 DEAI.S pcm_s16be            PCM signed 16-bit big-endian
 DEAI.S pcm_s16be_planar     PCM signed 16-bit big-endian planar
 DEAI.S pcm_s16le            PCM signed 16-bit little-endian
 DEAI.S pcm_s16le_planar     PCM signed 16-bit little-endian planar
 DEAI.S pcm_s24be            PCM signed 24-bit big-endian
 DEAI.S pcm_s24daud          PCM D-Cinema audio signed 24-bit
 DEAI.S pcm_s24le            PCM signed 24-bit little-endian
 DEAI.S pcm_s24le_planar     PCM signed 24-bit little-endian planar
 DEAI.S pcm_s32be            PCM signed 32-bit big-endian
 DEAI.S pcm_s32le            PCM signed 32-bit little-endian
 DEAI.S pcm_s32le_planar     PCM signed 32-bit little-endian planar
 DEAI.S pcm_s64be            PCM signed 64-bit big-endian
 DEAI.S pcm_s64le            PCM signed 64-bit little-endian
 DEAI.S pcm_s8               PCM signed 8-bit
 DEAI.S pcm_s8_planar        PCM signed 8-bit planar
 DEAI.S pcm_u16be            PCM unsigned 16-bit big-endian
 DEAI.S pcm_u16le            PCM unsigned 16-bit little-endian
 DEAI.S pcm_u24be            PCM unsigned 24-bit big-endian
 DEAI.S pcm_u24le            PCM unsigned 24-bit little-endian
 DEAI.S pcm_u32be            PCM unsigned 32-bit big-endian
 DEAI.S pcm_u32le            PCM unsigned 32-bit little-endian
 DEAI.S pcm_u8               PCM unsigned 8-bit
 DEAIL. pcm_vidc             PCM Archimedes VIDC
 D.AIL. qcelp                QCELP / PureVoice
 D.AIL. qdm2                 QDesign Music Codec 2
 D.AIL. qdmc                 QDesign Music
 DEAIL. ra_144               RealAudio 1.0 (14.4K) (decoders: real_144 ) (encoders: real_144 )
 D.AIL. ra_288               RealAudio 2.0 (28.8K) (decoders: real_288 )
 D.AI.S ralf                 RealAudio Lossless
 DEAIL. roq_dpcm             DPCM id RoQ
 DEAI.S s302m                SMPTE 302M
 DEAIL. sbc                  SBC (low-complexity subband codec)
 D.AIL. sdx2_dpcm            DPCM Squareroot-Delta-Exact
 D.AI.S shorten              Shorten
 D.AIL. sipr                 RealAudio SIPR / ACELP.NET
 D.AIL. siren                Siren
 D.AIL. smackaudio           Smacker audio (decoders: smackaud )
 ..AIL. smv                  SMV (Selectable Mode Vocoder)
 D.AIL. sol_dpcm             DPCM Sol
 DEAI.. sonic                Sonic
 .EAI.. sonicls              Sonic lossless
 DEAIL. speex                Speex (decoders: libspeex ) (encoders: libspeex )
 D.AI.S tak                  TAK (Tom's lossless Audio Kompressor)
 DEA..S truehd               TrueHD
 D.AIL. truespeech           DSP Group TrueSpeech
 DEAI.S tta                  TTA (True Audio)
 D.AIL. twinvq               VQF TwinVQ
 D.AIL. vmdaudio             Sierra VMD audio
 DEAIL. vorbis               Vorbis (decoders: vorbis libvorbis ) (encoders: vorbis libvorbis )
 D.AI.. wavesynth            Wave synthesis pseudo-codec
 DEAILS wavpack              WavPack
 D.AIL. westwood_snd1        Westwood Audio (SND1) (decoders: ws_snd1 )
 D.AI.S wmalossless          Windows Media Audio Lossless
 D.AIL. wmapro               Windows Media Audio 9 Professional
 DEAIL. wmav1                Windows Media Audio 1
 DEAIL. wmav2                Windows Media Audio 2
 D.AIL. wmavoice             Windows Media Audio Voice
 D.AIL. xan_dpcm             DPCM Xan
 D.AIL. xma1                 Xbox Media Audio 1
 D.AIL. xma2                 Xbox Media Audio 2
 ..D... bin_data             binary data
 ..D... dvd_nav_packet       DVD Nav packet
 ..D... epg                  Electronic Program Guide
 ..D... klv                  SMPTE 336M Key-Length-Value (KLV) metadata
 ..D... otf                  OpenType font
 ..D... scte_35              SCTE 35 Message Queue
 ..D... timed_id3            timed ID3 metadata
 ..D... ttf                  TrueType font
 ..S... arib_caption         ARIB STD-B24 caption
 DES... ass                  ASS (Advanced SSA) subtitle (decoders: ssa ass ) (encoders: ssa ass )
 DES... dvb_subtitle         DVB subtitles (decoders: dvbsub ) (encoders: dvbsub )
 D.S... dvb_teletext         DVB teletext (decoders: libzvbi_teletextdec )
 DES... dvd_subtitle         DVD subtitles (decoders: dvdsub ) (encoders: dvdsub )
 D.S... eia_608              EIA-608 closed captions (decoders: cc_dec )
 D.S... hdmv_pgs_subtitle    HDMV Presentation Graphic Stream subtitles (decoders: pgssub )
 ..S... hdmv_text_subtitle   HDMV Text subtitle
 D.S... jacosub              JACOsub subtitle
 D.S... microdvd             MicroDVD subtitle
 DES... mov_text             MOV text
 D.S... mpl2                 MPL2 subtitle
 D.S... pjs                  PJS (Phoenix Japanimation Society) subtitle
 D.S... realtext             RealText subtitle
 D.S... sami                 SAMI subtitle
 ..S... srt                  SubRip subtitle with embedded timing
 ..S... ssa                  SSA (SubStation Alpha) subtitle
 D.S... stl                  Spruce subtitle format
 DES... subrip               SubRip subtitle (decoders: srt subrip ) (encoders: srt subrip )
 D.S... subviewer            SubViewer subtitle
 D.S... subviewer1           SubViewer v1 subtitle
 DES... text                 raw UTF-8 text
 ..S... ttml                 Timed Text Markup Language
 D.S... vplayer              VPlayer subtitle
 DES... webvtt               WebVTT subtitle
 DES... xsub                 XSUB

대충 유명한 비디오 코덱에 대해 확인을 해봐도 packed 형식의 YUV 포맷은 지원하고 있지 않습니다. 그렇다면 AV_PIX_FMT_YUYV422 같은 포맷은 언제 유용한 것일까요? ^^;




[이 글에 대해서 여러분들과 의견을 공유하고 싶습니다. 틀리거나 미흡한 부분 또는 의문 사항이 있으시면 언제든 댓글 남겨주십시오.]

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[최종 수정일: 2/7/2022]

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이 저작물은 크리에이티브 커먼즈 코리아 저작자표시-비영리-변경금지 2.0 대한민국 라이센스에 따라 이용하실 수 있습니다.
by SeongTae Jeong, mailto:techsharer at outlook.com

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2022-02-07 10시14분
[이승준] 디코더에서 원하는 픽셀포맷으로 받는 방법은 없습니다.
드믈게 디코더 자체가 출력을 지원하는 경우도 있으나 거의 드믈고요.

닷넷에서 지원하는지는 모르겠습니다만
libswscale/swscale.h 의 api를 사용하든가
libavfilter 를 이용하면 됩니다. 딱히 필터를 추가할 필요는 없고 filters_descr 값을 "null"을 주고 출력 픽셀포맷만 원하는 픽셀포맷을 사용하면 변환이 됩니다.
둘다 사용 라이브러리는 libswscale이라 퍼포먼스는 동일 합니다.
[guest]
2022-02-07 10시43분
@이승준 님 덧글 감사합니다. ^^ 초보다 보니 그런 확답이 무척 도움이 됩니다.
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