[FFmpeg-trac] #1502(avcodec:new): vc1 decoding regression

[FFmpeg]

#1502: vc1 decoding regression
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  important  |              Component:  avcodec
                Version:  git-       |               Keywords:  vc1
  master                             |  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 http://trac.videolan.org/vlc/ticket/6904
 I will attach crash.wmv (does not crash, no invalid reads) that cannot be
 played since 4f00519 ("Fix VC-1 width/height handling.")
 FFmpeg claims a resolution change to 7710x7746 with current git head and
 decoding fails.
 {{{
 $ ffmpeg -i crash.wmv
 ffmpeg version N-42076-g51d2578 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Jun 30 2012 21:45:24 with gcc 4.3.2
   configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable-
 libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame
 --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs
 --enable-libfaac --enable-nonfree
   libavutil      51. 63.100 / 51. 63.100
   libavcodec     54. 31.100 / 54. 31.100
   libavformat    54. 14.100 / 54. 14.100
   libavdevice    54.  0.100 / 54.  0.100
   libavfilter     3.  0.100 /  3.  0.100
   libswscale      2.  1.100 /  2.  1.100
   libswresample   0. 15.100 /  0. 15.100
   libpostproc    52.  0.100 / 52.  0.100
 [asf @ 0x903a3c0] max_analyze_duration 5000000 reached at 5016000
 Input #0, asf, from 'crash.wmv':
   Metadata:
     WMFSDKVersion   : 12.0.7601.17514
     WMFSDKNeeded    : 0.0.0.0000
     IsVBR           : 1
   Duration: 00:00:17.21, bitrate: 1508 kb/s
     Stream #0:0(eng): Video: vc1 (Advanced) (WVC1 / 0x31435657), yuv420p,
 640x480 [SAR 1:1 DAR 4:3], 1472 kb/s, 30.30 fps, 29.97 tbr, 1k tbn, 29.97
 tbc
 At least one output file must be specified
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1502>
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