[FFmpeg-trac] #6857(undetermined:new): mp4 encode to h264 can not play in the firefox and ie11, but fine in the chrome

[FFmpeg]

#6857: mp4 encode to h264 can not play in the firefox and ie11,but fine in the
chrome
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             Reporter:  gy0624ww     |                    Owner:
                 Type:  defect       |                   Status:  new
             Priority:  normal       |                Component:
              Version:  unspecified  |  undetermined
             Keywords:  h264 mov     |               Resolution:
             Blocking:               |               Blocked By:
Analyzed by developer:  0            |  Reproduced by developer:  0
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Comment (by gy0624ww):

 you can download the bad.mp4 from
 https://www.dropbox.com/s/8ohav21h7nnj1v7/bad.mp4?dl=0
 i try the command you give to me , it didn't work either.


 Replying to [comment:12 tbucher]:
 > Most likely you need to prepare the file also for progressive download
 by moving the required data to the beginning of the file. Try to use this
 based on your original command line:
 >
 >
 > {{{
 > ffmpeg -i bad.mp4 -vcodec libx264 -strict 2 -movflags faststart 999.mp4
 > }}}

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Ticket URL: <https://trac.ffmpeg.org/ticket/6857#comment:13>
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