[FFmpeg-trac] #8993(avcodec:new): vaapi_encode.c example makes the invalid stream

[FFmpeg]

#8993: vaapi_encode.c example makes the invalid stream
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             Reporter:  Wohlstand    |                     Type:  defect
               Status:  new          |                 Priority:  important
            Component:  avcodec      |                  Version:  git-
             Keywords:  vaapi        |  master
  encode                             |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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 Hello!
 Some time ago I made use of VAAPI encoder through latest FFMPEG (for the
 use with RTSP server to stream the video) and using Intel GPU. That
 worked, however, after some time my boss was found that the result is
 messy: dozen frames got lost, the VLC player reports a missings of frames.

 What the reason of such mess? I had to use the code of vaapi_encode.c
 example. Then, I did a test, and the example itself makes the same messy
 result as in my code. I will include the set of files.

 The processor I have at me is "Intel(R) Core(TM) i3-8109U CPU @ 3.00GHz".
 This mess appears on any other processors also.

 Is this a bug of software, or it's the VAAPI itself is messy? I use Ubuntu
 20.04 with all libraries from the repository. The FFMPEG and libraries I
 built from the sources by myself.

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Ticket URL: <https://trac.ffmpeg.org/ticket/8993>
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