[FFmpeg-trac] #11080(undetermined:new): FFmpeg timestamps do not consistently agree with packet timestamps

[FFmpeg]

#11080: FFmpeg timestamps do not consistently agree with packet timestamps
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             Reporter:  markfilipak  |                    Owner:  (none)
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
                                     |  undetermined
              Version:  unspecified  |               Resolution:
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
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Comment (by markfilipak):

 Replying to [comment:59 Balling]:
 > >then the B-frames are being displayed before they're decoded
 >
 > They are only partially decoded, as P frame from previous GOP is absent,

 Like I wrote, I don't know how I- P- & B-slices work.

 > Open GOP two first B frames are decoded and dropped.

 How can that be? These are pristine frames that come ahead of my splice.
 ...May I remind you that this is a video mastered by Criterion?

 > >H.264 states that the first frame of a GOP shall be an I-frame.
 >
 > H.222 says that. That is old MPEG-2

 And H.264 says it, too.
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Ticket URL: <https://trac.ffmpeg.org/ticket/11080#comment:60>
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