[FFmpeg-trac] #1338(undetermined:new): FFMPEG creating broken MP4/Audio files with libx264

FFmpeg trac at avcodec.org
Thu May 24 16:08:00 CEST 2012


#1338: FFMPEG creating broken MP4/Audio files with libx264
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             Reporter:  ramitbhalla  |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  important    |                Component:
              Version:  unspecified  |  undetermined
             Keywords:               |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by ramitbhalla):

 I'm using Windows Media Player and KMPlayer. KMPlayer is not able to play
 the file while WMP does not have any audio for quite a while after which
 it suddenly appears but out of sync.

 Unfortunatley yes all the parameters are required. If I remove all the
 params (say use only -sameq it works but the quality is terrible). The
 previous version of ffmpeg works perfectly with these params. I tend to
 update ffmpeg every few months, upto  N-37915-g6cb2085 there was no issue,
 somewhere after that it broke (unfortunately I do not know how to use
 bisect etc to figure it out).

 Also mpeg4 codec quality for the same bitrate creates more artifacts so my
 users insist on using lix264.

-- 
Ticket URL: <https://ffmpeg.org/trac/ffmpeg/ticket/1338#comment:4>
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