Opened 6 years ago

Closed 6 years ago

#1626 closed defect (fixed)

Initial seek in transport stream with timestamp wrap fails

Reported by: cehoyos Owned by:
Priority: normal Component: avformat
Version: git-master Keywords: mpegts
Cc: Blocked By:
Blocking: Reproduced by developer: no
Analyzed by developer: no

Description

I will attach a transport stream with 169 seconds aac sound. Timestamps wrap approximately in the middle.
The resulting file is ~0.2 seconds long.

$ ffmpeg -ss 1 -i timestamp_wrap.ts out.wav
ffmpeg version N-43375-g5d8e54f Copyright (c) 2000-2012 the FFmpeg developers
  built on Aug  9 2012 07:54:23 with gcc 4.3.2 (GCC)
  configuration: --cc=/usr/local/gcc-4.3.2/bin/gcc --enable-gpl --enable-libopenjpeg --enable-libvorbis --enable-libspeex --enable-libmp3lame --enable-libtheora --extra-ldflags=-lm --enable-libvpx --enable-libxavs --enable-x11grab --enable-libass --enable-nonfree --enable-libfaac --enable-libopus --enable-libfdk-aac
  libavutil      51. 67.100 / 51. 67.100
  libavcodec     54. 51.100 / 54. 51.100
  libavformat    54. 22.103 / 54. 22.103
  libavdevice    54.  2.100 / 54.  2.100
  libavfilter     3.  7.100 /  3.  7.100
  libswscale      2.  1.101 /  2.  1.101
  libswresample   0. 15.100 /  0. 15.100
  libpostproc    52.  0.100 / 52.  0.100
[mpegts @ 0x9116500] max_analyze_duration 5000000 reached at 5034667
[mpegts @ 0x9116500] PES packet size mismatch
    Last message repeated 1 times
Input #0, mpegts, from 'timestamp_wrap.ts':
  Duration: 00:02:49.21, start: 95364.014889, bitrate: 121 kb/s
  Program 20001
  Program 20002
  Program 20003
  Program 20011
  Program 20012
    Stream #0:0[0x20](deu): Audio: aac ([15][0][0][0] / 0x000F), 24000 Hz, stereo, s16, 56 kb/s (clean effects)
  Program 20013
Output #0, wav, to 'out.wav':
  Metadata:
    encoder         : Lavf54.22.103
    Stream #0:0(deu): Audio: pcm_s16le ([1][0][0][0] / 0x0001), 24000 Hz, stereo, s16, 768 kb/s (clean effects)
Stream mapping:
  Stream #0:0 -> #0:0 (aac -> pcm_s16le)
Press [q] to stop, [?] for help
[mpegts @ 0x9116500] PES packet size mismatch
[aac @ 0x911d380] Input buffer exhausted before END element found
Error while decoding stream #0:0: Operation not permitted
size=      20kB time=-26:-27:-55.-28 bitrate=  -0.0kbits/s
video:0kB audio:20kB subtitle:0 global headers:0kB muxing overhead 0.224609%

Seeking in timestamp_wrap.ts with ffplay works very well, both mplayer -demuxer mpegts and mplayer -demuxer lavf mostly fail to seek.

Attachments (1)

timestamp_wrap.ts (2.4 MB) - added by cehoyos 6 years ago.

Change History (2)

Changed 6 years ago by cehoyos

comment:1 Changed 6 years ago by cehoyos

  • Component changed from undetermined to avformat
  • Resolution set to fixed
  • Status changed from new to closed

Seeking works fine now with -correct_ts_overflow 1 (which is the default) due to a patch by Harald Axmann.

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