[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
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             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):

 You mentioned "TP_extra_header".

 From here:
   https://www.nationalarchives.gov.uk/pronom/fmt/1055
 "M2TS is the video stream packet format used on Blu-ray discs. M2TS is
 similar to fmt/585 - MPEG-2 Transport Stream, but instead features 192
 byte packets, with a 4 byte TP_extra_header preceeding [sic] each 188 byte
 transport packet. Filenames usually take the form 'xxxxx.mts' or
 xxxxx.m2ts' where xxxxx represents a numeric value, beginning with 00000
 and incrementing by 1 for each stream."

 I confirm with a hex editor that my sources: 00305.m2ts, 00306.m2ts,
 00307.m2ts, and 00308.m2ts have 192 byte TPs. Is that relevant?
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11055#comment:144>
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