[FFmpeg-trac] #1273(avformat:new): initial seek causes failure to display on some avi files

[FFmpeg]

#1273: initial seek causes failure to display on some avi files
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             Reporter:  DonMoir   |                     Type:  defect
               Status:  new       |                 Priority:  normal
            Component:  avformat  |                  Version:  unspecified
             Keywords:            |               Blocked By:
             Blocking:            |  Reproduced by developer:  0
Analyzed by developer:  0         |
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 If you do a seek prior to calling avcodec_decode_video2 at least once,
 then you will no longer get any video stream packets with the attached
 files. The seek works fine after you call avcodec_decode_video2 but not if
 you tried to seek prior to this. Reading a first video packet is not
 enough.

 It can be any seek like -ss 0, --ss 1, etc.

 The audio is ok.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1273>
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