[FFmpeg-devel] [PATCH] new generic metadata API

[Aurelien Jacobs]

Hi,

A generic metadata API was queried several times... Now, here it is !
 - The first patch add the new API itself. It contains a compatibility
   layer so that software using the old API will still work.
   It also contains the appropriate #if, so that the old API and the
   compatibility layer will disappear after next lavf major bump.
 - The second patch changes all the muxers/demuxers to use the new API.
 - The third patch changes ffmpeg.c, ffplay.c and ffserver.c to use
   the new API.

Basically, this API allows to associate random string value to random
string name, for AVFormatContext, AVStream, AVChapter and AVProgram.
It also supports more advanced features, such as recursive metadata,
and multiple tags with the same name.
For an example usage of such features, here is what matroska can
contain:

BAND
- LEADPERFORMER
-- ADDRESS
--- DATE
--- DATEEND
-- ADDRESS
--- DATE

I hope this new API will fit everyone needs.

Aurel
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