id	summary	reporter	owner	description	type	status	priority	component	version	resolution	keywords	cc	blockedby	blocking	reproduced	analyzed
2084	Wrong duration and negative bitrate in mpeg stream with timestamp discontinuity	cehoyos		"A user provided a 2.9 G DVD rip that shows a duration of ""00:00:01.06"" and a bitrate of ""-2147483 kb/s"" with ffmpeg -i. The reason is a timestamp discontinuity approximately 1 sec before the end of the stream. I cut the sample to only contain the last seconds, and the duration is also wrong, the bitrate is shown as 0kb/s.
{{{
$ ffmpeg -i negative-bitrate-sample.mpg
ffmpeg version N-48311-gc36302a Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 30 2012 19:01:34 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --enable-avresample
  libavutil      52. 13.100 / 52. 13.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 50.104 / 54. 50.104
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 30.102 /  3. 30.102
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[mpeg @ 0x1ed7540] max_analyze_duration 5000000 reached at 5000000
Input #0, mpeg, from 'negative-bitrate-sample.mpg':
  Duration: 00:00:01.06, start: 0.287267, bitrate: -2147483 kb/s
    Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Stream #0:2[0x23]: Subtitle: dvd_subtitle
At least one output file must be specified
}}}
{{{
$ ffmpeg -probesize 2147483647 -analyzeduration 2147483647 -i ../MPlayer/negative-bitrate-sample.mpg
ffmpeg version N-48311-gc36302a Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 30 2012 19:01:34 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --enable-avresample
  libavutil      52. 13.100 / 52. 13.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 50.104 / 54. 50.104
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 30.102 /  3. 30.102
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[mpeg @ 0x17c0720] max_analyze_duration 2147483647 reached at 2147520000
Input #0, mpeg, from '../MPlayer/negative-bitrate-sample.mpg':
  Duration: 00:00:01.06, start: 0.287267, bitrate: -2147483 kb/s
    Stream #0:0[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Stream #0:2[0x23]: Subtitle: dvd_subtitle
    Stream #0:3[0x21]: Subtitle: dvd_subtitle
    Stream #0:4[0x20]: Subtitle: dvd_subtitle
    Stream #0:5[0x22]: Subtitle: dvd_subtitle
At least one output file must be specified
}}}
{{{
$ ffmpeg -i negative-bitrate-sample_cut.mpg
ffmpeg version N-48311-gc36302a Copyright (c) 2000-2012 the FFmpeg developers
  built on Dec 30 2012 19:01:34 with gcc 4.7 (SUSE Linux)
  configuration: --enable-gpl --enable-avresample
  libavutil      52. 13.100 / 52. 13.100
  libavcodec     54. 81.100 / 54. 81.100
  libavformat    54. 50.104 / 54. 50.104
  libavdevice    54.  3.102 / 54.  3.102
  libavfilter     3. 30.102 /  3. 30.102
  libswscale      2.  1.103 /  2.  1.103
  libswresample   0. 17.102 /  0. 17.102
  libpostproc    52.  2.100 / 52.  2.100
[mpeg2video @ 0x2b72f80] mpeg_decode_postinit() failure
    Last message repeated 4 times
[mpeg @ 0x2b6c540] DTS discontinuity in stream 1: packet 76 with DTS 343638654, packet 77 with DTS 8589956846
[mpeg @ 0x2b6c540] DTS discontinuity in stream 0: packet 104 with DTS 343641534, packet 105 with DTS 8589960446
Input #0, mpeg, from 'negative-bitrate-sample_cut.mpg':
  Duration: 25:27:10.12, start: 3814.943267, bitrate: 0 kb/s
    Stream #0:0[0x80]: Audio: ac3, 48000 Hz, 5.1(side), fltp, 448 kb/s
    Stream #0:1[0x1e0]: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 64:45 DAR 16:9], 25 fps, 25 tbr, 90k tbn, 50 tbc
    Stream #0:2[0x20]: Subtitle: dvd_subtitle
    Stream #0:3[0x21]: Subtitle: dvd_subtitle
    Stream #0:4[0x22]: Subtitle: dvd_subtitle
    Stream #0:5[0x23]: Subtitle: dvd_subtitle
At least one output file must be specified
}}}

"	defect	new	normal	undetermined	git-master		mpegps				0	0