#5743(undetermined:new): SAR changes when stream copying y4m video to Matroska when SAR is present in source
#5743: SAR changes when stream copying y4m video to Matroska when SAR is present in source -------------------------------------+------------------------------------- Reporter: kieranjol | Type: defect Status: new | Priority: normal Component: | Version: undetermined | unspecified Keywords: matroska, | Blocked By: y4m, SAR, DAR | Reproduced by developer: 0 Blocking: | Analyzed by developer: 0 | -------------------------------------+------------------------------------- Summary of the bug: Y4m videos that are stream copied to Matroska can have a different SAR. Input.y4m = Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 128:117 DAR 1408:1053 Out.mkv = Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 193:176 DAR 193:144 Raised on ffmpeg-user, Carl Eugen Hoyos asked me to file a ticket: https://lists.ffmpeg.org/pipermail/ffmpeg-user/2016-July/032774.html How to reproduce: Source can be downloaded from here https://media.xiph.org/video/derf/y4m/bus_qcif_15fps.y4m {{{ % ffmpeg -i bus_qcif_15fps.y4m -c copy out.mkv ffmpeg version N-44317-g7af44ce Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/home/kieranjol/.linuxbrew/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=/usr/bin/gcc-4.8 --host-cflags='-Os -w -pipe -march=core2' --host-ldflags='-L/home/kieranjol/.linuxbrew/lib -Wl,--dynamic-linker=/home/kieranjol/.linuxbrew/lib/ld.so -Wl,-rpath,/home/kieranjol/.linuxbrew/lib' --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 50.100 / 57. 50.100 libavformat 57. 41.100 / 57. 41.100 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 47.100 / 6. 47.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, yuv4mpegpipe, from 'bus_qcif_15fps.y4m': Duration: 00:00:05.00, start: 0.000000, bitrate: 4562 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 128:117 DAR 1408:1053, 15 fps, 15 tbr, 15 tbn, 15 tbc File 'out.mkv' already exists. Overwrite ? [y/N] y [matroska @ 0x21ba860] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Output #0, matroska, to 'out.mkv': Metadata: encoder : Lavf57.41.100 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144 [SAR 128:117 DAR 1408:1053], q=2-31, 15 fps, 15 tbr, 1k tbn, 15 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help frame= 75 fps=0.0 q=-1.0 Lsize= 2788kB time=00:00:04.93 bitrate=4629.1kbits/s speed= 115x video:2784kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.134154% 2. ffmpeg -i out.mkv ffmpeg version N-44317-g7af44ce Copyright (c) 2000-2016 the FFmpeg developers built with gcc 4.8 (Ubuntu 4.8.4-2ubuntu1~14.04.3) configuration: --prefix=/home/kieranjol/.linuxbrew/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=/usr/bin/gcc-4.8 --host-cflags='-Os -w -pipe -march=core2' --host-ldflags='-L/home/kieranjol/.linuxbrew/lib -Wl,--dynamic-linker=/home/kieranjol/.linuxbrew/lib/ld.so -Wl,-rpath,/home/kieranjol/.linuxbrew/lib' --enable-libx264 --enable-libmp3lame --enable-libxvid --enable-vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 50.100 / 57. 50.100 libavformat 57. 41.100 / 57. 41.100 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 47.100 / 6. 47.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, matroska,webm, from 'out.mkv': Metadata: ENCODER : Lavf57.41.100 Duration: 00:00:05.00, start: 0.000000, bitrate: 4568 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 193:176 DAR 193:144, 15 fps, 15 tbr, 1k tbn, 1k tbc (default) Metadata: DURATION : 00:00:05.000000000 At least one output file must be specified }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5743> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#5743: SAR changes when stream copying y4m video to Matroska when SAR is present in source ------------------------------------+------------------------------------ Reporter: kieranjol | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mkv aspect | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | ------------------------------------+------------------------------------ Changes (by cehoyos): * keywords: matroska, y4m, SAR, DAR => mkv aspect * status: new => open * version: unspecified => git-master * component: undetermined => avformat * reproduced: 0 => 1 Comment: Iirc the issue is also reproducible with {{{-vcodec rawvideo}}}. -- Ticket URL: <https://trac.ffmpeg.org/ticket/5743#comment:1> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#5743: SAR changes when stream copying y4m video to Matroska when SAR is present in source ------------------------------------+------------------------------------ Reporter: kieranjol | Owner: Type: defect | Status: open Priority: normal | Component: avformat Version: git-master | Resolution: Keywords: mkv aspect | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | ------------------------------------+------------------------------------ Comment (by kieranjol): It is. I tried to reproduce the attributes of my y4m file with testsrc, but my -vf setsar option was altered. I asked for a sar of 128:117 but I got a SAR of 93:85 . Possibly something to do with yuv420p? 3 outputs: 1. testsrc generation 2. stream copy to matroska 3. ffmpeg -i of out.mkv 1. testsrc generation {{{ fmpeg -f lavfi -i testsrc=size=176x144 -vf setsar=128:117 -pix_fmt yuv420p -t 1 out.y4m ffmpeg version N-43802-g376d8fb Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 7.3.0 (clang-703.0.31) configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable- libfreetype --enable-ffplay --disable-lzma --enable-libopenjpeg --disable- decoder=jpeg2000 --extra- cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable- vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 51.100 / 57. 51.100 libavformat 57. 44.100 / 57. 44.100 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 49.100 / 6. 49.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, lavfi, from 'testsrc=size=176x144': Duration: N/A, start: 0.000000, bitrate: N/A Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 176x144 [SAR 1:1 DAR 11:9], 25 tbr, 25 tbn, 25 tbc File 'out.y4m' already exists. Overwrite ? [y/N] y [Parsed_setsar_0 @ 0x7f831b600000] num:den syntax is deprecated, please use num/den or named options instead [yuv4mpegpipe @ 0x7f831b812400] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Output #0, yuv4mpegpipe, to 'out.y4m': Metadata: encoder : Lavf57.44.100 Stream #0:0: Video: wrapped_avframe, yuv420p, 176x144 [SAR 93:85 DAR 341:255], q=2-31, 200 kb/s, 25 fps, 25 tbn, 25 tbc Metadata: encoder : Lavc57.51.100 wrapped_avframe Stream mapping: Stream #0:0 -> #0:0 (rawvideo (native) -> wrapped_avframe (native)) Press [q] to stop, [?] for help frame= 25 fps=0.0 q=-0.0 Lsize= 928kB time=00:00:01.00 bitrate=7604.9kbits/s speed= 181x video:12kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 7691.885254% }}} 2. stream copy to matroska {{{ ffmpeg -i out.y4m -c copy sar.mkv ffmpeg version N-43802-g376d8fb Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 7.3.0 (clang-703.0.31) configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable- libfreetype --enable-ffplay --disable-lzma --enable-libopenjpeg --disable- decoder=jpeg2000 --extra- cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable- vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 51.100 / 57. 51.100 libavformat 57. 44.100 / 57. 44.100 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 49.100 / 6. 49.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, yuv4mpegpipe, from 'out.y4m': Duration: 00:00:01.00, start: 0.000000, bitrate: 7604 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 93:85 DAR 341:255, 25 fps, 25 tbr, 25 tbn, 25 tbc File 'sar.mkv' already exists. Overwrite ? [y/N] y [matroska @ 0x7fa19882ac00] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. Output #0, matroska, to 'sar.mkv': Metadata: encoder : Lavf57.44.100 Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144 [SAR 93:85 DAR 341:255], q=2-31, 25 fps, 25 tbr, 1k tbn, 25 tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Press [q] to stop, [?] for help frame= 25 fps=0.0 q=-1.0 Lsize= 930kB time=00:00:00.96 bitrate=7925.7kbits/s speed= 556x video:928kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 0.175610% }}} 3. ffmpeg -i of out.mkv {{{ ffmpeg -i sar.mkv ffmpeg version N-43802-g376d8fb Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 7.3.0 (clang-703.0.31) configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable- opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --enable- libfreetype --enable-ffplay --disable-lzma --enable-libopenjpeg --disable- decoder=jpeg2000 --extra- cflags=-I/usr/local/Cellar/openjpeg/1.5.2_1/include/openjpeg-1.5 --enable- vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 51.100 / 57. 51.100 libavformat 57. 44.100 / 57. 44.100 libavdevice 57. 0.102 / 57. 0.102 libavfilter 6. 49.100 / 6. 49.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 Input #0, matroska,webm, from 'sar.mkv': Metadata: ENCODER : Lavf57.44.100 Duration: 00:00:01.00, start: 0.000000, bitrate: 7616 kb/s Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 176x144, SAR 193:176 DAR 193:144, 25 fps, 25 tbr, 1k tbn, 1k tbc (default) Metadata: DURATION : 00:00:01.000000000 At least one output file must be specified ifi-mac-pro:~ admin$ }}} -- Ticket URL: <https://trac.ffmpeg.org/ticket/5743#comment:2> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
#5743: SAR changes when stream copying y4m video to Matroska when SAR is present in source ------------------------------------+------------------------------------ Reporter: kieranjol | Owner: Type: defect | Status: closed Priority: normal | Component: avformat Version: git-master | Resolution: fixed Keywords: mkv aspect | Blocked By: Blocking: | Reproduced by developer: 1 Analyzed by developer: 0 | ------------------------------------+------------------------------------ Changes (by jamrial): * status: open => closed * resolution: => fixed Comment: Should be fixed in 5cb57131d3bb2422858467828a5763646f004bbe -- Ticket URL: <https://trac.ffmpeg.org/ticket/5743#comment:3> FFmpeg <https://ffmpeg.org> FFmpeg issue tracker
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