[FFmpeg-trac] #1891(avformat:open): Problem transcoding realmedia file (was: FFmpeg duplicating too many frames)

[FFmpeg]

#1891: Problem transcoding realmedia file
------------------------------------+------------------------------------
             Reporter:  eklann      |                    Owner:
                 Type:  defect      |                   Status:  open
             Priority:  normal      |                Component:  avformat
              Version:  git-master  |               Resolution:
             Keywords:  real        |               Blocked By:
             Blocking:              |  Reproduced by developer:  1
Analyzed by developer:  0           |
------------------------------------+------------------------------------
Changes (by cehoyos):

 * component:  undetermined => avformat


Comment:

 I apparently misunderstood the issue originally: ffplay automatically
 chooses streams 0:8 and 0:6 for playback which works fine (this
 corresponds to mplayer -demuxer lavf -vid 3 -aid 1), ffmpeg tries to
 transcode video stream 0:3 which fails (like mplayer -demuxer lavf -vid
 0), workaround is the following command line:
 $ ffmpeg -i ffmpeg_not_terminating.rm -map 0:8 -map 0:6 -r 30 out.mpg

 There is definitely a problem with the demuxer that can be shown with the
 sample, the following mplayer command lines show videos with different
 fps:
 $ mplayer ffmpeg_not_terminating.rm -demuxer real -nosound -vc ffrv20 -vid
 1
 $ mplayer ffmpeg_not_terminating.rm -demuxer real -nosound -vc ffrv20 -vid
 4
 $ mplayer ffmpeg_not_terminating.rm -demuxer real -nosound -vc ffrv20 -vid
 5

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1891#comment:17>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker