[FFmpeg-trac] #343(undetermined:new): wrong duration with voc files

[FFmpeg]

#343: wrong duration with voc files
--------------------------+--------------------------
 Reporter:  ami_stuff     |        Type:  defect
   Status:  new           |    Priority:  normal
Component:  undetermined  |     Version:  unspecified
 Keywords:                |  Blocked By:
 Blocking:                |  Reproduced:  0
 Analyzed:  0             |
--------------------------+--------------------------
 seems like voc demuxer lacks duration calcalation, so it's calculated
 incorrectly and as a result seeking doesn't work as expected (issue 1082)

 VLC/WinAMP reports correct duration (0:17)

 http://samples.mplayerhq.hu/voc/pcm_s16_2/nem.voc

 {{{
 C:\>ffmpeg -i nem.voc
 ffmpeg version N-31329-g58257ea, Copyright (c) 2000-2011 the FFmpeg
 developers
   built on Jul  8 2011 22:27:48 with gcc 4.6.1
   configuration: --enable-gpl --enable-version3 --enable-memalign-hack
 --enable-
 runtime-cpudetect --enable-avisynth --enable-bzlib --enable-frei0r
 --enable-libo
 pencore-amrnb --enable-libopencore-amrwb --enable-libfreetype --enable-
 libgsm --
 enable-libmp3lame --enable-libopenjpeg --enable-librtmp --enable-
 libschroedinger
  --enable-libspeex --enable-libtheora --enable-libvorbis --enable-libvpx
 --enabl
 e-libx264 --enable-libxavs --enable-libxvid --enable-zlib
   libavutil    51. 11. 0 / 51. 11. 0
   libavcodec   53.  7. 0 / 53.  7. 0
   libavformat  53.  5. 0 / 53.  5. 0
   libavdevice  53.  2. 0 / 53.  2. 0
   libavfilter   2. 24. 3 /  2. 24. 3
   libswscale    2.  0. 0 /  2.  0. 0
   libpostproc  51.  2. 0 / 51.  2. 0
 [voc @ 01E6A600] max_analyze_duration 5000000 reached at 5011200
 [voc @ 01E6A600] Estimating duration from bitrate, this may be inaccurate
 Input #0, voc, from 'nem.voc':
   Duration: 00:00:34.56, bitrate: 705 kb/s
     Stream #0.0: Audio: pcm_s16le, 44100 Hz, 2 channels, s16, 1411 kb/s
 At least one output file must be specified
 }}}

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/343>
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