[FFmpeg-trac] #3738(undetermined:new): Incorrect end time transcoding ogg vorbis

[FFmpeg]

#3738: Incorrect end time transcoding ogg vorbis
-------------------------------------+-------------------------------------
               Reporter:  cehoyos    |                  Owner:
                   Type:  defect     |                 Status:  new
               Priority:  minor      |              Component:
                Version:  git-       |  undetermined
  master                             |               Keywords:  regression
             Blocked By:             |               Blocking:
Reproduced by developer:  0          |  Analyzed by developer:  0
-------------------------------------+-------------------------------------
 (as reported on irc)
 A user provided an ogg file that (shows an incorrect calculated duration
 and) shows an incorrect end time when transcoded with ffmpeg since
 c5ea3a00.
 Maybe related to tickets #1627, #1678, #3328 and #3553
 {{{
 $ ffmpeg -i 2.ogg out.wav
 ffmpeg version N-64177-g957457a Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jun 23 2014 20:08:48 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 90.100 / 52. 90.100
   libavcodec     55. 68.100 / 55. 68.100
   libavformat    55. 44.100 / 55. 44.100
   libavdevice    55. 13.101 / 55. 13.101
   libavfilter     4.  9.100 /  4.  9.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
   libpostproc    52.  3.100 / 52.  3.100
 [ogg @ 0x31eec20] Estimating duration from bitrate, this may be inaccurate
 Input #0, ogg, from '2.ogg':
   Duration: 00:00:03.43, start: 0.000000, bitrate: 34 kb/s
     Stream #0:0: Audio: vorbis, 24000 Hz, mono, fltp, 34 kb/s
 [wav @ 0x31f64a0] Using AVStream.codec.time_base as a timebase hint to the
 muxer is deprecated. Set AVStream.time_base instead.
 Output #0, wav, to 'out.wav':
   Metadata:
     ISFT            : Lavf55.44.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 24000 Hz, mono,
 s16, 384 kb/s
     Metadata:
       encoder         : Lavc55.68.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (vorbis (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=      97kB time=00:00:00.02 bitrate=37373.8kbits/s
 video:0kB audio:97kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.078326%
 }}}
 {{{
 $ ffmpeg -i out.wav -f null -
 ffmpeg version N-64177-g957457a Copyright (c) 2000-2014 the FFmpeg
 developers
   built on Jun 23 2014 20:08:48 with gcc 4.7 (SUSE Linux)
   configuration: --enable-gpl
   libavutil      52. 90.100 / 52. 90.100
   libavcodec     55. 68.100 / 55. 68.100
   libavformat    55. 44.100 / 55. 44.100
   libavdevice    55. 13.101 / 55. 13.101
   libavfilter     4.  9.100 /  4.  9.100
   libswscale      2.  6.100 /  2.  6.100
   libswresample   0. 19.100 /  0. 19.100
   libpostproc    52.  3.100 / 52.  3.100
 Guessed Channel Layout for  Input Stream #0.0 : mono
 Input #0, wav, from 'out.wav':
   Metadata:
     encoder         : Lavf55.44.100
   Duration: 00:00:02.07, bitrate: 384 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 24000 Hz, 1
 channels, s16, 384 kb/s
 [null @ 0x2a653c0] Using AVStream.codec.time_base as a timebase hint to
 the muxer is deprecated. Set AVStream.time_base instead.
 Output #0, null, to 'pipe:':
   Metadata:
     encoder         : Lavf55.44.100
     Stream #0:0: Audio: pcm_s16le, 24000 Hz, mono, s16, 384 kb/s
     Metadata:
       encoder         : Lavc55.68.100 pcm_s16le
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 size=N/A time=00:00:02.07 bitrate=N/A
 video:0kB audio:97kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: unknown
 }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/3738>
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