[FFmpeg-trac] #6971(undetermined:new): ffmpeg drops frames after deinterlacing

FFmpeg trac at avcodec.org
Sat Nov 3 18:50:23 EET 2018

#6971: ffmpeg drops frames after deinterlacing
             Reporter:  CaryKnoop    |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  git-master   |  undetermined
             Keywords:  cuvid        |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0

Comment (by malakudi):

 I did some more tests and if input starts correctly from keyframe, then
 using -r 50 as input flag I don't have issues. However, my user case is
 transcoding live multicast mpegts streams or http unicast mpegts streams
 that I cannot guarantee they start at keyframe. When that is the case, -r
 50 produces async output.
 Why we can't make it to work with -r 50 at output as it does work since
 the above mentioned commit?

Ticket URL: <https://trac.ffmpeg.org/ticket/6971#comment:13>
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