[FFmpeg-trac] #2421(undetermined:new): DTS/PTS problems when trying to obtain synced video and audio files

[FFmpeg]

#2421: DTS/PTS problems when trying to obtain synced video and audio files
-------------------------------------+-------------------------------------
             Reporter:  chlg         |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:
  undetermined                       |  unspecified
             Keywords:  async,       |               Blocked By:
  first_pts                          |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:

 Bug has been obviously introduced by commit
 e42028925bddfdfe46dcd2b7312148379ef4d62e

 (previous commit, 394130efe32f85c1f0582094add4376e32ebf20c, is doing just
 fine)
 Which is not surprising, since this commit is exactly about first_pts.

 while encoding, ffmpeg is complaining about pts/dts. And audio file
 contains blank. After a while, it's apparently working normaly again ; but
 video and audio are totaly unsynchronized.


 How to reproduce:
 {{{
 % ffmpeg -i bugreport.ts -vsync 1 out.yuv -async 480 -f s16le out.raw
 ffmpeg version : git commit e42028925bddfdfe46dcd2b7312148379ef4d62e (and
 all git versions since that, including the last one)
 built on arch linux, 64bits
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2421>
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