[FFmpeg-trac] #6839(avcodec:new): transcoding r210 creates a 16 bit rather than 10 bit pixel format
FFmpeg
trac at avcodec.org
Fri Nov 17 00:13:02 EET 2017
#6839: transcoding r210 creates a 16 bit rather than 10 bit pixel format
--------------------------------------+---------------------------------
Reporter: dericed | Owner:
Type: defect | Status: new
Priority: normal | Component: avcodec
Version: git-master | Keywords: r210
Blocked By: | Blocking:
Reproduced by developer: 0 | Analyzed by developer: 0
--------------------------------------+---------------------------------
Summary of the bug:
Create a sample r210 file (r210.mov) with
{{{
ffmpeg -f lavfi -i testsrc -c:v r210 -t 1 -y r210.mov
ffmpeg version N-45636-g8329ae781 Copyright (c) 2000-2017 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.38)
configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-8329ae7 --enable-
shared --enable-pthreads --enable-version3 --enable-hardcoded-tables
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
--enable-ffplay --enable-libfreetype --enable-libmp3lame --enable-libx264
--enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 56. 0.100 / 56. 0.100
libavcodec 58. 3.101 / 58. 3.101
libavformat 58. 2.100 / 58. 2.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 0.101 / 7. 0.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, lavfi, from 'testsrc':
Duration: N/A, start: 0.000000, bitrate: N/A
Stream #0:0: Video: rawvideo (RGB[24] / 0x18424752), rgb24, 320x240
[SAR 1:1 DAR 4:3], 25 tbr, 25 tbn, 25 tbc
Stream mapping:
Stream #0:0 -> #0:0 (rawvideo (native) -> r210 (native))
Press [q] to stop, [?] for help
Output #0, mov, to 'r210.mov':
Metadata:
encoder : Lavf58.2.100
Stream #0:0: Video: r210 (r210 / 0x30313272), rgb48le, 320x240 [SAR
1:1 DAR 4:3], q=2-31, 61440 kb/s, 25 fps, 12800 tbn, 25 tbc
Metadata:
encoder : Lavc58.3.101 r210
frame= 25 fps=0.0 q=-0.0 Lsize= 7501kB time=00:00:00.96
bitrate=64001.3kbits/s speed= 26x
video:7500kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.010221%
}}}
Transcode to ffv1:
{{{
ffmpeg -i r210.mov -c:v ffv1 -y -strict experimental r210_to_ffv1.mov
ffmpeg version N-45636-g8329ae781 Copyright (c) 2000-2017 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.38)
configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-8329ae7 --enable-
shared --enable-pthreads --enable-version3 --enable-hardcoded-tables
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
--enable-ffplay --enable-libfreetype --enable-libmp3lame --enable-libx264
--enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 56. 0.100 / 56. 0.100
libavcodec 58. 3.101 / 58. 3.101
libavformat 58. 2.100 / 58. 2.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 0.101 / 7. 0.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'r210.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.2.100
Duration: 00:00:01.00, start: 0.000000, bitrate: 61446 kb/s
Stream #0:0(eng): Video: r210 (r210 / 0x30313272), rgb48le(10 bpc,
progressive), 320x240, 61440 kb/s, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 12800
tbn, 12800 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.3.101 r210
Stream mapping:
Stream #0:0 -> #0:0 (r210 (native) -> ffv1 (native))
Press [q] to stop, [?] for help
[ffv1 @ 0x7fc6ee002a00] bits_per_raw_sample > 8, forcing range coder
[mov @ 0x7fc6ee001800] Using MS style video codec tag, the file may be
unplayable!
Output #0, mov, to 'r210_to_ffv1.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.2.100
Stream #0:0(eng): Video: ffv1, rgb48le(10 bpc), 320x240 [SAR 1:1 DAR
4:3], q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.3.101 ffv1
frame= 25 fps=0.0 q=-0.0 Lsize= 112kB time=00:00:00.96 bitrate=
956.8kbits/s speed=12.5x
video:111kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.762602%
}}}
The output is rgb48le (now 16 bit).
I can specify gbrp10le but shouldn't this be the default.
Forcing 10 bit rgb (similar between r210 input and ffv1 output):
{{{
ffmpeg -i r210.mov -c:v ffv1 -y -pix_fmt gbrp10le r210_to_ffv1.mov
ffmpeg version N-45636-g8329ae781 Copyright (c) 2000-2017 the FFmpeg
developers
built with Apple LLVM version 9.0.0 (clang-900.0.38)
configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-8329ae7 --enable-
shared --enable-pthreads --enable-version3 --enable-hardcoded-tables
--enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-gpl
--enable-ffplay --enable-libfreetype --enable-libmp3lame --enable-libx264
--enable-libxvid --enable-opencl --enable-videotoolbox --disable-lzma
libavutil 56. 0.100 / 56. 0.100
libavcodec 58. 3.101 / 58. 3.101
libavformat 58. 2.100 / 58. 2.100
libavdevice 58. 0.100 / 58. 0.100
libavfilter 7. 0.101 / 7. 0.101
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 0.101 / 5. 0.101
libswresample 3. 0.101 / 3. 0.101
libpostproc 55. 0.100 / 55. 0.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'r210.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.2.100
Duration: 00:00:01.00, start: 0.000000, bitrate: 61446 kb/s
Stream #0:0(eng): Video: r210 (r210 / 0x30313272), rgb48le(10 bpc,
progressive), 320x240, 61440 kb/s, SAR 1:1 DAR 4:3, 25 fps, 25 tbr, 12800
tbn, 12800 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.3.101 r210
Stream mapping:
Stream #0:0 -> #0:0 (r210 (native) -> ffv1 (native))
Press [q] to stop, [?] for help
[ffv1 @ 0x7fa0df801200] bits_per_raw_sample > 8, forcing range coder
[mov @ 0x7fa0df800000] Using MS style video codec tag, the file may be
unplayable!
Output #0, mov, to 'r210_to_ffv1.mov':
Metadata:
major_brand : qt
minor_version : 512
compatible_brands: qt
encoder : Lavf58.2.100
Stream #0:0(eng): Video: ffv1, gbrp10le, 320x240 [SAR 1:1 DAR 4:3],
q=2-31, 200 kb/s, 25 fps, 12800 tbn, 25 tbc (default)
Metadata:
handler_name : DataHandler
encoder : Lavc58.3.101 ffv1
frame= 25 fps=0.0 q=-0.0 Lsize= 86kB time=00:00:00.96 bitrate=
730.3kbits/s speed=12.7x
video:85kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 1.001441%
}}}
Patches should be submitted to the ffmpeg-devel mailing list and not this
bug tracker.
--
Ticket URL: <https://trac.ffmpeg.org/ticket/6839>
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