[FFmpeg-trac] #3923(avcodec:new): decoding damged h264 video shows strong artefacts (was: decode h264 video has some error and bad image)

FFmpeg trac at avcodec.org
Thu Sep 4 15:46:11 CEST 2014

#3923: decoding damged h264 video shows strong artefacts
             Reporter:  ytliao       |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  h264         |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
Changes (by cehoyos):

 * reproduced:  0 => 1
 * component:  undetermined => avcodec
 * priority:  normal => important
 * version:  2.3 => git-master
 * keywords:   => h264 regression


 The original sample is in http://samples.ffmpeg.org/ffmpeg-
 bugs/trac/ticket3923/, I attached a remuxed sample that shows identical
 behaviour with FFmpeg, WMP and QT.
 WMP indeed shows no visible artefacts for the file, QT shows approximately
 the same artefacts as FFmpeg before 3af2de76
 Current FFmpeg shows significantly stronger artefacts, they are also
 visible with the attached I-frame but that did not look better with older
 versions of FFmpeg.

Ticket URL: <https://trac.ffmpeg.org/ticket/3923#comment:1>
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