[FFmpeg-trac] #11002(avformat:closed): Unnecessary PNG metadata generated

[FFmpeg]

#11002: Unnecessary PNG metadata generated
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:  (none)
  MasterQuestionable                 |
                 Type:  enhancement  |                   Status:  closed
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:  invalid
             Keywords:  png          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Comment (by Balling):

 >What does that pointless ~ 1.11 MiB do?

 That is a very hard question, as H.222 specification of TS (transpirt
 streams) and Blu-ray M2TS spec is very complex. But basically TS has
 nanosecond resolution, has PTS and DTS (DTS is decoding timestamps), and
 has to be inflated more to properly support all part of H.222. WE DO NOT
 SUPPORT THAT 100%, maybe 80%, that is a bug. That means that if you -c
 copy it using ffmpeg that bloat will decrease because null packets are no
 longer inserted "suboptimally". But that is a meme already: I always ask
 Kieran to fix this and he does not want to.
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11002#comment:8>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker