[FFmpeg-trac] #2618(avcodec:open): MPNG used to work better

FFmpeg trac at avcodec.org
Tue Jun 4 14:34:08 CEST 2013


#2618: MPNG used to work better
-------------------------------------+-------------------------------------
             Reporter:  cehoyos      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  png          |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by thilo.borgmann):

 Two patches uploaded:

 For the historic revision "ee30cda", waiting for a keyframe flag before
 handling P-frames fixes this issue.

 For todays todays revision "fca435f", this does not work anymore because
 the keyframe flag seems to be handled differently. I don't know how to fix
 the demuxer(?) or even if it is a demuxer mishandling of the keyframe flag
 or just a broken file with wrong/missing keyframe flags.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2618#comment:2>
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