[FFmpeg-trac] #4636(undetermined:new): 10 bit ffv1 in mkv created by libavfilter is interpreted as 8 bit
FFmpeg
trac at avcodec.org
Wed Jun 17 17:24:52 CEST 2015
#4636: 10 bit ffv1 in mkv created by libavfilter is interpreted as 8 bit
-------------------------------------+-------------------------------------
Reporter: dericed | Owner:
Type: defect | Status: new
Priority: normal | Component:
Version: | undetermined
unspecified | Keywords:
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
-------------------------------------+-------------------------------------
Summary of the bug:
I tried to create a 10 bit ffv1.mkv file from libavfilter but it is
detected as 8 bit.
How to reproduce:
Create 10 bit ffv1.mkv with yuv422p10le file via:
{{{
ffmpeg -f lavfi -i color=black -pix_fmt yuv422p10le -vframes 1 -c:v ffv1
-level 3 -y black.mkv
ffmpeg version N-45431-g7495e72 Copyright (c) 2000-2015 the FFmpeg
developers
built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM
3.6.0svn)
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-
libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid
--enable-libfreetype --enable-libfaac --enable-libass --enable-ffplay
--enable-libopenjpeg --disable-decoder=jpeg2000 --extra-
cflags='-I/usr/local/Cellar/openjpeg/1.5.0/include ' --enable-nonfree
--enable-vda
libavutil 54. 26.101 / 54. 26.101
libavcodec 56. 41.101 / 56. 41.101
libavformat 56. 34.100 / 56. 34.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, lavfi, from 'color=black':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (I420 / 0x30323449), yuv420p, 320x240
[SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
[ffv1 @ 0x7fd2f5000c00] bits_per_raw_sample > 8, forcing coder 1
Output #0, matroska, to 'black.mkv':
Metadata:
encoder : Lavf56.34.100
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p10le, 320x240
[SAR 1:1 DAR 4:3], q=2-31, 200 kb/s, 25 fps, 1k tbn, 25 tbc
Metadata:
encoder : Lavc56.41.101 ffv1
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> ffv1 (native))
Press [q] to stop, [?] for help
frame= 1 fps=0.0 q=0.0 Lsize= 1kB time=00:00:00.04 bitrate=
295.2kbits/s
video:1kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 144.370865%
}}}
Check output and it is interpreted as 8 bit (yuv422p).
{{{
ffmpeg -i black.mkv
ffmpeg version N-45431-g7495e72 Copyright (c) 2000-2015 the FFmpeg
developers
built with Apple LLVM version 6.1.0 (clang-602.0.53) (based on LLVM
3.6.0svn)
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-
libx264 --enable-libmp3lame --enable-libvo-aacenc --enable-libxvid
--enable-libfreetype --enable-libfaac --enable-libass --enable-ffplay
--enable-libopenjpeg --disable-decoder=jpeg2000 --extra-
cflags='-I/usr/local/Cellar/openjpeg/1.5.0/include ' --enable-nonfree
--enable-vda
libavutil 54. 26.101 / 54. 26.101
libavcodec 56. 41.101 / 56. 41.101
libavformat 56. 34.100 / 56. 34.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 16.101 / 5. 16.101
libavresample 2. 1. 0 / 2. 1. 0
libswscale 3. 1.101 / 3. 1.101
libswresample 1. 1.100 / 1. 1.100
libpostproc 53. 3.100 / 53. 3.100
Input #0, matroska,webm, from 'black.mkv':
Metadata:
ENCODER : Lavf56.34.100
Duration: 00:00:00.04, start: 0.000000, bitrate: 295 kb/s
Stream #0:0: Video: ffv1 (FFV1 / 0x31564646), yuv422p, 320x240, SAR
1:1 DAR 4:3, 25 fps, 25 tbr, 1k tbn, 1k tbc (default)
Metadata:
ENCODER : Lavc56.41.101 ffv1
At least one output file must be specified
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4636>
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