[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            |
-------------------------------------+-------------------------------------
Comment (by markfilipak):

 Hey, Balling,

 This is what I'm doing:
 {{{
                                 ::
 PTS order ..P  I  B  B  P  B  B  I  I  B  B  P..
               /  ______/  ______/  /  ______/
              /  /        /        /  /
 DTS order ..I  P  B  B  I  B  B  I  P  B  B..
 }}}
 The splice is marked '::'.

 .
 This part is from 00305.m2ts.
 {{{
 PTS order ..P  I  B  B  P  B  B
               /  ______/
              /  /
 DTS order ..I  P  B  B     B  B
 }}}

 .
 This part is also from 00305.m2ts.
 {{{
 PTS order                        I
                           ______/
                          /
 DTS order               I
 }}}

 .
 This part is from 00306.m2ts
 {{{
 PTS order                           I  B  B  P..
                                    /  ______/
                                   /  /
 DTS order                        I  P  B  B..
 }}}
 but before I moved the I's DTS, it was like this:
 {{{
 PTS order                           I  B  B  P..
                              ______/  ______/
                             /        /
 DTS order                  I        P  B  B..
 }}}

 .
 Now, cutting that I's decode time might not be wise -- Is it? -- but it
 can't cause the symptoms I'm seeing, can it?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11055#comment:183>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker