[FFmpeg-trac] #11055(avcodec:reopened): OGOP (Open GOP) in certain conditions may cause missing frames of decoding

[FFmpeg]

#11055: OGOP (Open GOP) in certain conditions may cause missing frames of decoding
-------------------------------------+-------------------------------------
             Reporter:  markfilipak  |                    Owner:  (none)
                 Type:  defect       |                   Status:  reopened
             Priority:  normal       |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  everything   |               Blocked By:
  OGOP                               |
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by markfilipak):

 Replying to [comment:206 Balling]:

 Help me out.
 "In Open GOP by definition you can have a situation where some after I
 frames or its slices you can have dependence on frames before that I frame
 ..."

 Do you mean the 'open Bs' that come after the I-frame's DTS?

 {{{
            ..open———————————>  <—————————..
 PTS order       B  B  P  B  B  I  B  B  P
                         ______/  ______/
                        /        /
 DTS order    P  B  B  I  B  B  P  B  B
                         open Bs
 }}}
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Ticket URL: <https://trac.ffmpeg.org/ticket/11055#comment:207>
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