[FFmpeg-devel] Missing documentation of metadata keys

Michael Niedermayer michaelni
Wed Oct 21 17:26:46 CEST 2009

On Wed, Oct 21, 2009 at 09:20:12AM -0400, Ronald S. Bultje wrote:
> Hi,
> On Wed, Oct 21, 2009 at 7:46 AM, Michael Niedermayer <michaelni at gmx.at> wrote:
> > What you(plural) try to document here is not what can be stored because
> > anything can, but rather what are the standard tags.
> > In that respect iam not sure if this is that usefull.
> [..]
> > ffmpeg does the convertion from ffmpegs standard tag to the format specific
> > anyway so theres no need to know all standard tags for all formats. That
> > said we of course will need a way for people to bypass that convertion
> > and get their tags stored unchanged as they are. The discussion related
> > to ffmpeg filling in timetamp values have shown that some people want
> > things more raw ...
> I think there's really two use cases:
> - people who want raw power. I even think that some people wouldn't
> trust our conversion tables and create their own (mea culpa). So yes,
> we need that. But, secondly, there's...
> - people who want standard-tags only which their UI-based player (VLC,
> iTunes, WMP) will display. They want it to work, no special tags or
> anything, b/c it won't display anyway in the ("broken", some people
> would claim) UI.
> We need to support both cases, and a listing would be useful for the
> second use case (only).

The listing will not be complete because the tables only contain what
differs from the standard and when author is author (which is likely)
its not in the table.

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

I have often repented speaking, but never of holding my tongue.
-- Xenocrates
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 189 bytes
Desc: Digital signature
URL: <http://lists.mplayerhq.hu/pipermail/ffmpeg-devel/attachments/20091021/b2040398/attachment.pgp>

More information about the ffmpeg-devel mailing list