[FFmpeg-trac] #4899(avcodec:open): memory leak when reencoding to native encoder (was: memory leak when reencoding udp input)

[FFmpeg]

#4899: memory leak when reencoding to native encoder
-------------------------------------+-------------------------------------
             Reporter:  svvitch      |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  leak         |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by rogerdpack):

 also seems reproducible with the following, from #5118:

 {{{
 ./ffmpeg_g  -f lavfi -i color=c=red:size=10x10 -f mpegts - | ./ffmpeg_g -i
 - -vcodec mpeg4 -f null out
 }}}

 Also seems to not be tied to mpeg2video input video codec, as the
 following also repro's it:
 {{{
 ./ffmpeg_g  -f lavfi -i color=c=red:size=10x10 -vcodec mpeg4 -f mpegts - |
 ./ffmpeg_g -i - -vcodec mpeg4 -f null out
 }}}

 (however, if the input is libx264 then it doesn't leak, odd)

 The output codec also doesn't seem to matter (seems that any native
 encoder shows the problem, mpeg2video, mpeg4, jpeg):
 {{{
  ./ffmpeg_g  -f lavfi -i color=c=red:size=10x10 -f mpegts - | ./ffmpeg_g
 -i -  -f image2 -y -updatefirst 1  out.jpg
 }}}

 however, if I output to libx264, then the problem also doesn't seem to
 occur.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/4899#comment:12>
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