[FFmpeg-trac] #7(FFplay:open): seeking back to beginning of file sometimes fails badly

[FFmpeg]

#7: seeking back to beginning of file sometimes fails badly
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             Reporter:  fpretto  |                    Owner:  michael
                 Type:  defect   |                   Status:  open
             Priority:  normal   |                Component:  FFplay
              Version:           |               Resolution:
             Keywords:           |               Blocked By:
             Blocking:           |  Reproduced by developer:  1
Analyzed by developer:  0        |
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Comment (by DonMoir):

 Not directly related to ffplay, but what I find in my own app, is on a
 file by file basis seeking to start (rewind) does not work consistently
 and sometimes badly. Audio can be out of sync etc. Some file formats work
 well and some not. Sometimes a seek by byte just fails to seek on some
 files. Sometimes seek by frame works and sometimes not. So you get the
 picture. I have not taken the time to identify all this here yet as I need
 to get back to the seek issues in general.

 The only way I have gotten this to work for all files is to do a parital
 shutdown of ffmpeg related file handling and restart. Fortunately, my
 seamless loops still look seamless when doing this on a relatively slow
 machine.

 The easiest possible seek should be a rewind type and even if you had to
 specialize this it might be helpful. The real answer of course is to
 revisit seeking all together.

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Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/7#comment:4>
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