Hi all,
Brennan wrote:
> Hi folks,
>
> It would surprise me very much if the MPEG4 simple video profile had
> no
> support for metadata, but it appears that if I add annotations to a
> Quicktime movie, then export as MPEG4, all the annotations are lost.
MPEG-4 Visual Simple Profile has not much in common with metadata. It's in
fact just a specification for the representation (compression) of video.
If you want metadata, then you should have a look at what is defined in
MPEG-4 Systems (look for Object Content Information - OCI). There you can
find support for metadata (like keywords, language descriptors, content
rating and classification, ...) and corresponding extension mechanisms (such
as hooks for MPEG-7 metadata).
> Maybe QuickTime's MPEG4 implementation doesn't support metadata yet.
>
> Is this the correct behavior, or should I report it as a bug/feature
> request?
I would call it a feature request ;-). It's just a matter of implementation
but that's not always that easy in practice... With regards to MPEG-4
Systems, QuickTime does not support that much for the moment (if we do not
take into account the support for the MP4 file format, but that's actually
another part of MPEG-4).
With kind regards,
Smudge
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