[FFmpeg-trac] #911(undetermined:closed): ffplay can't handle timecodes of WMV2 video correctly

[FFmpeg]

#911: ffplay can't handle timecodes of WMV2 video correctly
-------------------------------------+-------------------------------------
             Reporter:               |                    Owner:
  zhushisongzhu                      |                   Status:  closed
                 Type:  defect       |                Component:
             Priority:  important    |  undetermined
              Version:  git-master   |               Resolution:
             Keywords:  asf wmv2     |  worksforme
  seeking                            |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------

Comment (by zhushisongzhu):

 Replying to [comment:8 cehoyos]:
 > * H264 streams can be valid without keyframes (even without an initial
 keyframe).
 > * If a media player seeks exactly to a keyframe in H264, it is not
 guaranteed that there will be no corruption when playing the stream
 beginning from the found keyframe. (Non-keyframes after a keyframe in H264
 may reference frames earlier than the last keyframe.)
 >
 > Both is not true for WMV, so assuming that seeking in H264 is
 significantly different from seeking in WMV is safe.
 > (Note that much older versions of FFmpeg seek fine in your sample, but
 failed completely seeking in H264 which was only fixed a short time ago.)

 Thanks for your comments.  If having time, I'll spend some time to
 understand more details about WMV and H264.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/911#comment:9>
FFmpeg <http://ffmpeg.org>
FFmpeg issue tracker