Opened 8 years ago
Closed 8 years ago
#5806 closed defect (wontfix)
Major Brand & Minor Version
Reported by: | Richard Bushell | Owned by: | |
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Priority: | normal | Component: | avformat |
Version: | git-master | Keywords: | mov |
Cc: | Blocked By: | ||
Blocking: | Reproduced by developer: | no | |
Analyzed by developer: | no |
Description
We are getting conformance messages downstream after ffmpeg based on ffmpeg writing a spec prohibited value for Major Brand in MP4 files.
'isom' cannot be used as a major brand in MP4, it is currently prohibited by ISO/IEC 14496-12 sec 6.3 paragraph 2.
Also, it would be fantastic if you would extend the -brand option to include an option to override the minor version (as well as the major brand), like with the GPAC MP4Box option:
-brand ABCD[:v] sets major brand of file, with optional version
Please advise, thanks.
Change History (1)
comment:1 by , 8 years ago
Component: | undetermined → avformat |
---|---|
Keywords: | mov added |
Resolution: | → wontfix |
Status: | new → closed |
Version: | unspecified → git-master |
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Replying to richardbushell:
Do you know of a player that refuses the files? Because changing the major brand to
mp41
will most likely brake some (broken) player, I don't think this is a good idea given we allow users to select the major brand anyway.If you disagree, please send the (trivial) patch made with
git format-patch
to the development mailing list, this is not the right place to discuss likely controversial patches.Please report only one issue per ticket.