[FFmpeg-trac] #6864(avformat:open): H.264 with multiple PPS - extradata in Matroska not complete upon remuxing

[FFmpeg]

#6864: H.264 with multiple PPS - extradata in Matroska not complete upon remuxing
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             Reporter:  mkver       |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  h264        |               Blocked By:
             Blocking:              |  Reproduced by developer:  0
Analyzed by developer:  1           |
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Changes (by jamrial):

 * analyzed:  0 => 1
 * keywords:  SPS, PPS => h264
 * status:  new => open
 * component:  undetermined => avformat
 * version:  unspecified => git-master


Comment:

 The avcc writing code in lavf is explicitly writing only the last sps and
 the last pps it finds in annexb style extradata. It should indeed instead
 write all.

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Ticket URL: <https://trac.ffmpeg.org/ticket/6864#comment:1>
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