[FFmpeg-trac] #3558(undetermined:new): "-fflags +igndts" generates wrong dts when rewrapping some ts files to mp4

[FFmpeg]

#3558: "-fflags +igndts" generates wrong dts when rewrapping some ts files to mp4
-------------------------------------+-------------------------------------
             Reporter:  wim_arbor    |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:  mov          |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 When copying the streams of a mpeg-ts containing h.264 and mpeg1L2 audio
 to mp4/mov using {{{-fflags +igndts}}}, av_interleaved_write_frame()
 reports: Invalid argument, pts (-10800) < dts (-3600). The output is
 (almost) empty. Without {{{-fflags +igndts}}} a proper output is created.

 How to reproduce:
 {{{
 arbor at debian7:~$ bin/ffmpeg -y -fflags +igndts -i of_commercial_dvb_cut.ts
 -f mov -c:a copy -c:v copy out.mp4
 ffmpeg version N-62439-g5e379cd Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Apr 14 2014 13:41:14 with gcc 4.7 (Debian 4.7.2-5)
   configuration:
   libavutil      52. 76.100 / 52. 76.100
   libavcodec     55. 58.103 / 55. 58.103
   libavformat    55. 37.100 / 55. 37.100
   libavdevice    55. 13.100 / 55. 13.100
   libavfilter     4.  4.100 /  4.  4.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 18.100 /  0. 18.100
 [mp3 @ 0x20fd2e0] Header missing
 [mpegts @ 0x20f7a00] PES packet size mismatch
     Last message repeated 1 times
 Input #0, mpegts, from 'of_commercial_dvb_cut.ts':
   Duration: 00:00:05.96, start: 4576.668422, bitrate: 2523 kb/s
   Program 1
     Stream #0:0[0xa1]: Video: h264 (High) ([27][0][0][0] / 0x001B),
 yuv420p(tv, bt470bg), 720x576 [SAR 16:11 DAR 20:11], 25 fps, 25 tbr, 90k
 tbn, 50 tbc
     Stream #0:1[0x111](nla): Subtitle: dvb_teletext ([6][0][0][0] /
 0x0006)
     Stream #0:2[0x489](nla): Audio: mp2 ([3][0][0][0] / 0x0003), 48000 Hz,
 stereo, s16p, 192 kb/s
 Output #0, mov, to 'out.mp4':
   Metadata:
     encoder         : Lavf55.37.100
     Stream #0:0: Video: h264 (avc1 / 0x31637661), yuv420p, 720x576 [SAR
 16:11 DAR 20:11], q=2-31, 25 fps, 90k tbn, 90k tbc
     Stream #0:1(nla): Audio: mp2 (.mp2 / 0x32706D2E), 48000 Hz, stereo,
 192 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (copy)
   Stream #0:2 -> #0:1 (copy)
 Press [q] to stop, [?] for help
 [mov @ 0x20fe060] pts (-10800) < dts (-3600) in stream 0
 av_interleaved_write_frame(): Invalid argument
 frame=    2 fps=0.0 q=-1.0 Lsize=      55kB time=00:00:00.00 bitrate=N/A
 video:61kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}
 Patches should be submitted to the ffmpeg-devel mailing list and not this
 bug tracker.

--
Ticket URL: <https://trac.ffmpeg.org/ticket/3558>
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