[FFmpeg-trac] #4319(avcodec:new): VC1 decoding artifacts
FFmpeg
trac at avcodec.org
Fri Feb 20 18:43:27 CET 2015
#4319: VC1 decoding artifacts
----------------------------------+--------------------------------------
Reporter: 11rcombs | Type: defect
Status: new | Priority: normal
Component: avcodec | Version: git-master
Keywords: vc1 | Blocked By:
Blocking: | Reproduced by developer: 0
Analyzed by developer: 0 |
----------------------------------+--------------------------------------
[http://puu.sh/g5d1g/5c540dce06.mkv This sample file] (a clip of a 1080i
BD remux) produces block artifacts in the VC1 decoder, accompanied by
"Overriding invalid mquant 0" errors.
{{{
$ ffplay http://puu.sh/g5d1g/5c540dce06.mkv
ffplay version N-69975-g28bf05e Copyright (c) 2003-2015 the FFmpeg
developers
built with Apple LLVM version 6.0 (clang-600.0.54) (based on LLVM
3.5svn)
configuration: --extra-cflags='-march=native' --enable-optimizations
--disable-stripping --enable-debug --enable-libx265 --enable-gpl --enable-
libopus --enable-version3 --enable-nonfree --enable-postproc --enable-
libass --enable-libfdk-aac --enable-libfreetype --enable-libmp3lame
--enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
--enable-gnutls --enable-libtheora --enable-libvorbis --enable-libvpx
--enable-libx264 --enable-libxvid --prefix=/usr/local --enable-static
--enable-shared --enable-avresample --enable-vda --enable-opencl --enable-
libzvbi --cc=clang --disable-indev=avfoundation
libavutil 54. 19.100 / 54. 19.100
libavcodec 56. 25.100 / 56. 25.100
libavformat 56. 23.100 / 56. 23.100
libavdevice 56. 4.100 / 56. 4.100
libavfilter 5. 11.100 / 5. 11.100
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
[matroska,webm @ 0x7fbf6181ba00] Could not find codec parameters for
stream 2 (Subtitle: hdmv_pgs_subtitle): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
[matroska,webm @ 0x7fbf6181ba00] Could not find codec parameters for
stream 3 (Subtitle: hdmv_pgs_subtitle): unspecified size
Consider increasing the value for the 'analyzeduration' and 'probesize'
options
Input #0, matroska,webm, from 'http://puu.sh/g5d1g/5c540dce06.mkv':
Metadata:
title : Wild.Canada.2014.E01.BluRay.Remux.1080i.VC-1.DTS-
HD.MA.5.1-BMF
encoder : libebml v1.3.1 + libmatroska v1.4.2
creation_time : 2015-02-20 17:19:59
Duration: 00:00:24.03, start: 0.000000, bitrate: 17965 kb/s
Chapter #0:0: start 0.000000, end 24.033000
Metadata:
title : Chapter 01
Stream #0:0: Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p,
1920x1080 [SAR 1:1 DAR 16:9], 23.98 fps, 23.98 tbr, 1k tbn, 23.98 tbc
(default)
Metadata:
title : VC-1 Video / 22903 kbps / 1080i / 29.970 fps /
16:9 / Advanced Profile 3
Stream #0:1(eng): Audio: dts (DTS-HD MA), 48000 Hz, 5.1(side), fltp,
1536 kb/s (default)
Metadata:
title : DTS-HD Master Audio / 5.1 / 48 kHz / 2001 kbps /
16-bit
Stream #0:2(eng): Subtitle: hdmv_pgs_subtitle
Stream #0:3(fre): Subtitle: hdmv_pgs_subtitle
[vc1 @ 0x7fbf61816c00] Overriding invalid mquant 0
Last message repeated 8 times
34.37 A-V: 0.157 fd= 309 aq= 0KB vq= 0KB sq= 0B f=0/0
}}}
--
Ticket URL: <https://trac.ffmpeg.org/ticket/4319>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker
More information about the FFmpeg-trac
mailing list