[FFmpeg-trac] #712(avformat:open): m2v: wrong duration

[FFmpeg]

#712: m2v: wrong duration
-------------------------------------+-------------------------------------
             Reporter:  cbsrobot     |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  normal       |                Component:  avformat
              Version:  git-master   |               Resolution:
             Keywords:  mpeg2video   |               Blocked By:
  m2v                                |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
Changes (by cehoyos):

 * component:  undetermined => avformat


Comment:

 The output shows "Duration: N/A" now.
 {{{
 $ ffmpeg -i aletrek-rle.m2v
 ffmpeg version N-46390-g94f2245 Copyright (c) 2000-2012 the FFmpeg
 developers
   built on Nov  3 2012 16:53:18 with gcc 4.7 (SUSE Linux)
   configuration: --cc='cc -m32'
   libavutil      52.  3.100 / 52.  3.100
   libavcodec     54. 71.100 / 54. 71.100
   libavformat    54. 35.100 / 54. 35.100
   libavdevice    54.  3.100 / 54.  3.100
   libavfilter     3. 21.106 /  3. 21.106
   libswscale      2.  1.102 /  2.  1.102
   libswresample   0. 16.100 /  0. 16.100
 [mpegvideo @ 0x9177500] Estimating duration from bitrate, this may be
 inaccurate
 Input #0, mpegvideo, from 'aletrek-rle.m2v':
   Duration: N/A, bitrate: N/A
     Stream #0:0: Video: mpeg2video (Main), yuv420p, 720x576 [SAR 1:1 DAR
 5:4], 25 fps, 25 tbr, 1200k tbn, 50 tbc
 At least one output file must be specified
 }}}

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/712#comment:4>
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