[FFmpeg-trac] #2080(undetermined:new): Conversion of some .wtv files to .mpg produces unplayable file

FFmpeg trac at avcodec.org
Thu Jan 10 23:16:41 CET 2013


#2080: Conversion of some .wtv files to .mpg produces unplayable file
-------------------------------------+-------------------------------------
             Reporter:  peterdeg     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
-------------------------------------+-------------------------------------

Comment (by peterdeg):

 Sorry to take so long to respond. Was doing some further testing.

 I have two files. The original ~2GB file .mpg and a the small 10MB sample
 I extracted with dd.

 I have tried playing these samples locally on the pc (Win8) using ffplay
 N-47062-g26c531c, VLC 2.05 and Windows Media Player 12.0.9200.16420.

 The pc also runs Twonky to share the files so I can play them remotely on
 a PS3.


 '''ffplay'''
 * small - video starts immediately. video has sound.
 * large - video starts immediately. video has sound.
 '''VLC'''
 * small - video starts immediately. video has sound.
 * large - video starts immediately. video has sound.
 '''WMP'''
 * small - video starts after 2 second pause. video does not have sound.
 * large - video starts after 150 second pause. video does not have sound.
  ''resource monitor shows wmp reading from the disk at ~25MB/sec for the
 first minute of pause and dropping to 11MB/sec for the rest of the
 pause.''
 '''PS3'''
 * small - video starts immediately. video does not have sound.
 * large - video starts immediately. video does not have sound.

 In the last couple of months, I've recorded over 50 tv programs on this pc
 and converted them to .mpg for playback. The problem I'm seeing has so far
 only happened with shows from one channel (but not all shows on that
 channel) The original .wtv files plays correctly using WMP.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/2080#comment:4>
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