[FFmpeg-trac] #8735(undetermined:new): videotoolbox causes chroma artifacts in comparison to sw decoding
FFmpeg
trac at avcodec.org
Fri Jun 12 17:18:24 EEST 2020
#8735: videotoolbox causes chroma artifacts in comparison to sw decoding
-------------------------------------+-------------------------------------
Reporter: der_richter | Type: defect
Status: new | Priority: normal
Component: | Version:
undetermined | unspecified
Keywords: | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
-------------------------------------+-------------------------------------
in the following sample, at around 3:16 (as an example), the red rectangle
has visible chroma artifacts/aliasing when decoded with videotoolbox.
videotoolbox output:
[[Image(https://0x0.st/iVhk.png)]]
sw decode output:
[[Image(https://0x0.st/iVhd.png)]]
sample file: https://0x0.st/sDVT.mkv
related mpv issue: https://github.com/mpv-player/mpv/issues/6369
{{{
ffmpeg -hwaccel videotoolbox -i
"/Volumes/AkemiData/Downloads/ffmpeg_videotoolbox_issues/sDVT.mkv" -f null
-
ffmpeg version git-2020-06-11-bc8ab084 Copyright (c) 2000-2020 the FFmpeg
developers
built with Apple clang version 11.0.0 (clang-1100.0.33.12)
configuration: --prefix=/usr/local/Cellar/ffmpeg/HEAD-bc8ab08 --enable-
shared --enable-pthreads --enable-version3 --enable-avresample
--cc=/usr/bin/clang --host-cflags='-Os -w -pipe -march=nehalem -mmacosx-
version-min=10.14
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk -fno-
stack-check' --host-ldflags='-L/usr/local/opt/openssl at 1.1/lib
-L/usr/local/opt/libxml2/lib -L/usr/local/opt/python at 3.8/lib
-L/usr/local/opt/sqlite/lib -L/usr/local/opt/readline/lib
-L/usr/local/opt/openssl at 1.1/lib -L/usr/local/lib -F/usr/local/Frameworks
-Wl,-headerpad_max_install_names
-isysroot/Library/Developer/CommandLineTools/SDKs/MacOSX10.14.sdk'
--enable-ffplay --enable-gpl --enable-libaom --enable-libbluray --enable-
libdav1d --enable-libmp3lame --enable-libopus --enable-librubberband
--enable-libsnappy --enable-libsrt --enable-libtesseract --enable-
libtheora --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-
libwebp --enable-libx264 --enable-libx265 --enable-libxvid --enable-lzma
--enable-libfontconfig --enable-libfreetype --enable-frei0r --enable-
libass --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-
libopenjpeg --enable-librtmp --enable-libspeex --enable-libsoxr --enable-
videotoolbox --disable-libjack --disable-indev=jack --enable-gpl --enable-
nonfree --enable-hardcoded-tables --enable-libfdk-aac --enable-libgme
--enable-libbs2b --enable-libgsm --enable-libxml2 --enable-openssl
--enable-libwavpack --enable-libzmq --enable-libzimg --enable-opencl
libavutil 56. 54.100 / 56. 54.100
libavcodec 58. 92.100 / 58. 92.100
libavformat 58. 46.101 / 58. 46.101
libavdevice 58. 11.100 / 58. 11.100
libavfilter 7. 86.100 / 7. 86.100
libavresample 4. 0. 0 / 4. 0. 0
libswscale 5. 8.100 / 5. 8.100
libswresample 3. 8.100 / 3. 8.100
libpostproc 55. 8.100 / 55. 8.100
Input #0, matroska,webm, from
'/Volumes/AkemiData/Downloads/ffmpeg_videotoolbox_issues/sDVT.mkv':
Metadata:
encoder : libebml v1.3.5 + libmatroska v1.4.8
creation_time : 2017-11-20T03:32:29.000000Z
Duration: 00:06:07.37, start: 0.000000, bitrate: 6643 kb/s
Stream #0:0: Video: hevc (Main 10), yuv420p10le(tv,
bt709/unknown/unknown), 1920x1080, SAR 1:1 DAR 16:9, 23.98 fps, 23.98 tbr,
1k tbn, 23.98 tbc (default)
Metadata:
BPS : 5794944
BPS-eng : 5794944
DURATION : 00:06:07.367000000
DURATION-eng : 00:06:07.367000000
NUMBER_OF_FRAMES: 8808
NUMBER_OF_FRAMES-eng: 8808
NUMBER_OF_BYTES : 266108920
NUMBER_OF_BYTES-eng: 266108920
_STATISTICS_WRITING_APP: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_APP-eng: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2017-11-20 03:32:29
_STATISTICS_WRITING_DATE_UTC-eng: 2017-11-20 03:32:29
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:1(eng): Audio: flac, 48000 Hz, stereo, s32 (24 bit)
(default)
Metadata:
BPS : 846380
BPS-eng : 846380
DURATION : 00:06:07.365000000
DURATION-eng : 00:06:07.365000000
NUMBER_OF_FRAMES: 4306
NUMBER_OF_FRAMES-eng: 4306
NUMBER_OF_BYTES : 38866300
NUMBER_OF_BYTES-eng: 38866300
_STATISTICS_WRITING_APP: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_APP-eng: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2017-11-20 03:32:29
_STATISTICS_WRITING_DATE_UTC-eng: 2017-11-20 03:32:29
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream #0:2: Subtitle: ass (default)
Metadata:
BPS : 133
BPS-eng : 133
DURATION : 00:05:44.590000000
DURATION-eng : 00:05:44.590000000
NUMBER_OF_FRAMES: 94
NUMBER_OF_FRAMES-eng: 94
NUMBER_OF_BYTES : 5745
NUMBER_OF_BYTES-eng: 5745
_STATISTICS_WRITING_APP: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_APP-eng: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2017-11-20 03:32:29
_STATISTICS_WRITING_DATE_UTC-eng: 2017-11-20 03:32:29
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
Stream mapping:
Stream #0:0 -> #0:0 (hevc (native) -> wrapped_avframe (native))
Stream #0:1 -> #0:1 (flac (native) -> pcm_s16le (native))
Press [q] to stop, [?] for help
Output #0, null, to 'pipe:':
Metadata:
encoder : Lavf58.46.101
Stream #0:0: Video: wrapped_avframe, p010le(progressive), 1920x1080
[SAR 1:1 DAR 16:9], q=2-31, 200 kb/s, 23.98 fps, 23.98 tbn, 23.98 tbc
(default)
Metadata:
BPS : 5794944
BPS-eng : 5794944
DURATION : 00:06:07.367000000
DURATION-eng : 00:06:07.367000000
NUMBER_OF_FRAMES: 8808
NUMBER_OF_FRAMES-eng: 8808
NUMBER_OF_BYTES : 266108920
NUMBER_OF_BYTES-eng: 266108920
_STATISTICS_WRITING_APP: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_APP-eng: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2017-11-20 03:32:29
_STATISTICS_WRITING_DATE_UTC-eng: 2017-11-20 03:32:29
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
encoder : Lavc58.92.100 wrapped_avframe
Stream #0:1(eng): Audio: pcm_s16le, 48000 Hz, stereo, s16, 1536 kb/s
(default)
Metadata:
BPS : 846380
BPS-eng : 846380
DURATION : 00:06:07.365000000
DURATION-eng : 00:06:07.365000000
NUMBER_OF_FRAMES: 4306
NUMBER_OF_FRAMES-eng: 4306
NUMBER_OF_BYTES : 38866300
NUMBER_OF_BYTES-eng: 38866300
_STATISTICS_WRITING_APP: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_APP-eng: mkvmerge v18.0.0 ('Apricity') 64-bit
_STATISTICS_WRITING_DATE_UTC: 2017-11-20 03:32:29
_STATISTICS_WRITING_DATE_UTC-eng: 2017-11-20 03:32:29
_STATISTICS_TAGS: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
_STATISTICS_TAGS-eng: BPS DURATION NUMBER_OF_FRAMES NUMBER_OF_BYTES
encoder : Lavc58.92.100 pcm_s16le
frame= 8808 fps=153 q=-0.0 Lsize=N/A time=00:06:07.36 bitrate=N/A
speed=6.38x
video:4610kB audio:68881kB subtitle:0kB other streams:0kB global
headers:0kB muxing overhead: unknown
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/8735>
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