[FFmpeg-trac] #5977(undetermined:new): Impossible to play incomplete H.264 "mkv" or "ts" videos

[FFmpeg]

#5977: Impossible to play incomplete H.264 "mkv" or "ts" videos
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             Reporter:  thagoodboy   |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Summary of the bug:

 While encoding H.264 videos with ffmpeg in the past, i was able to play
 the output video in the middle of the encoding, with the condition of
 using the "mkv" or "ts" containers for that output, but with the last
 ffmpeg versions this is not possible, so i have to wait until finishing
 the encoding (this may take hours or days in my case) to play the
 resulting video.


 How to reproduce:
 ffmpeg -i anyvideo -c:v libx264 -c:a copy output.mkv

 Note:
 Please try to play the output video with Potplayer or VLC.

 ffmpeg version N-82597-gd316b21
 built on 2016/11/22

 Thanks

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Ticket URL: <https://trac.ffmpeg.org/ticket/5977>
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