[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):

 Results.

 00305.m2ts nostats.txt = 837326 lines
 {{{
 [h264 @ 00000000004f0800] nal_unit_type: 10(End of sequence), nal_ref_idc:
 0
 [h264 @ 00000000004f0800] ct_type:1 pic_struct:0
 [vist#0:0/h264 @ 0000000002b1cc80] [dec:h264 @ 0000000000487200] Decoder
 returned EOF, finishing
 [vist#0:0/h264 @ 0000000002b1cc80] [dec:h264 @ 0000000000487200]
 Terminating thread with return code 0 (success)
 [out_#0:0 @ 0000000002bafac0] EOF on sink link out_#0:0:default.
 [vf#0:0 @ 000000000367a7c0] Filtergraph returned EOF, finishing
 [vf#0:0 @ 000000000367a7c0] All consumers returned EOF
 [vf#0:0 @ 000000000367a7c0] Terminating thread with return code 0
 (success)
 [vost#0:0/rawvideo @ 000000000367a040] Encoder thread received EOF
 [vost#0:0/rawvideo @ 000000000367a040] Terminating thread with return code
 0 (success)
 [out#0/null @ 0000000000547340] All streams finished
 [out#0/null @ 0000000000547340] Terminating thread with return code 0
 (success)
 [out#0/null @ 0000000000547340] Output file #0 (pipe:):
 [out#0/null @ 0000000000547340]   Output stream #0:0 (video): 138407
 frames encoded; 138407 packets muxed (430501132800 bytes);
 [out#0/null @ 0000000000547340]   Total: 138407 packets (430501132800
 bytes) muxed
 [out#0/null @ 0000000000547340] video:420411262KiB audio:0KiB
 subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead:
 unknown
 frame=138407 fps= 98 q=-0.0 Lsize=N/A time=01:36:12.72 bitrate=N/A
 speed=4.08x
 [in#0/mpegts @ 000000000047dbc0] Input file #0 (c:\00305.m2ts):
 [in#0/mpegts @ 000000000047dbc0]   Input stream #0:0 (video): 138407
 packets read (13492671603 bytes); 138407 frames decoded; 0 decode errors;
 [in#0/mpegts @ 000000000047dbc0]   Total: 138407 packets (13492671603
 bytes) demuxed
 [AVIOContext @ 0000000000463a80] Statistics: 15097004176 bytes read, 2
 seeks
 }}}

 00305.m2ts nostats-copyts.txt = 824063 lines
 {{{
 [h264 @ 0000000002b20980] nal_unit_type: 10(End of sequence), nal_ref_idc:
 0
 [h264 @ 0000000002b20980] ct_type:1 pic_struct:0
 [vist#0:0/h264 @ 0000000000525700] [dec:h264 @ 0000000002c50180] Decoder
 returned EOF, finishing
 [vist#0:0/h264 @ 0000000000525700] [dec:h264 @ 0000000002c50180]
 Terminating thread with return code 0 (success)
 [out_#0:0 @ 00000000063a4dc0] EOF on sink link out_#0:0:default.
 [vf#0:0 @ 000000000355c880] Filtergraph returned EOF, finishing
 [vf#0:0 @ 000000000355c880] All consumers returned EOF
 [vost#0:0/rawvideo @ 000000000371f9c0] Encoder thread received EOF
 [vf#0:0 @ 000000000355c880] Terminating thread with return code 0
 (success)
 [vost#0:0/rawvideo @ 000000000371f9c0] Terminating thread with return code
 0 (success)
 [out#0/null @ 0000000000497340] All streams finished
 [out#0/null @ 0000000000497340] Terminating thread with return code 0
 (success)
 [out#0/null @ 0000000000497340] Output file #0 (pipe:):
 [out#0/null @ 0000000000497340]   Output stream #0:0 (video): 138407
 frames encoded; 138407 packets muxed (430501132800 bytes);
 [out#0/null @ 0000000000497340]   Total: 138407 packets (430501132800
 bytes) muxed
 [out#0/null @ 0000000000497340] video:420411262KiB audio:0KiB
 subtitle:0KiB other streams:0KiB global headers:0KiB muxing overhead:
 unknown
 frame=138407 fps= 95 q=-0.0 Lsize=N/A time=00:00:00.00 bitrate=N/A speed=
 0x
 [in#0/mpegts @ 000000000051dc40] Input file #0 (c:\00305.m2ts):
 [in#0/mpegts @ 000000000051dc40]   Input stream #0:0 (video): 138407
 packets read (13492671603 bytes); 138407 frames decoded; 0 decode errors;
 [in#0/mpegts @ 000000000051dc40]   Total: 138407 packets (13492671603
 bytes) demuxed
 [AVIOContext @ 000000000051c180] Statistics: 15097004176 bytes read, 2
 seeks
 }}}
-- 
Ticket URL: <https://trac.ffmpeg.org/ticket/11055#comment:165>
FFmpeg <https://ffmpeg.org>
FFmpeg issue tracker