[FFmpeg-trac] #5178(avformat:new): isom cannot be a MAJOR BRAND in MP4 created from ffmpeg

[FFmpeg]

#5178: isom cannot be a MAJOR BRAND in MP4 created from ffmpeg
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             Reporter:               |                    Owner:
  richardbushell                     |                   Status:  new
                 Type:  defect       |                Component:  avformat
             Priority:  normal       |               Resolution:
              Version:  unspecified  |               Blocked By:
             Keywords:  mov          |  Reproduced by developer:  0
             Blocking:               |
Analyzed by developer:  0            |
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Comment (by richardbushell):

 We did try the ffmpeg -brand option, but it doesn't have a MINOR VERSION
 option!

 At the moment we have to incorporate an extra step with MP4Box as this
 supports a Minor Version option after a colon, i.e:-
 MP4Box -brand mp42:0 file.mp4
 (obviously this should be mp41:0 if you write mp41 currently).

 Your brand option leaves the Minor Version as 512, and it should be 0.

 Why not write mp41 and 0 to these by default anyway, rather than add a
 minor version option to -brand? That would meet the spec.

 See:
 http://www.ftyps.com/composite.htm#6.3

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Ticket URL: <https://trac.ffmpeg.org/ticket/5178#comment:4>
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