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FFmpeg/doc/APIchanges
Reinhard Tartler e5bea45df7 Add a lock manager API to libavcodec.
Allows an application to register a callback that manages mutexes
on behalf of FFmpeg.
With this callback registered FFmpeg is fully thread safe.

backport r19025 by andoma

NB: This is a feature backport with little regression potential. It was
requested at FOSDEM 2010 by ben@geexbox.org for use by geexbox and the
enna mediacenter in the upcoming debian/squeeze and ubuntu/lucid
release.

Approved by DonDiego on #ffmpeg-devel


Originally committed as revision 21731 to svn://svn.ffmpeg.org/ffmpeg/branches/0.5
2010-02-09 20:28:42 +00:00

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20090601 - r19025 - lavc 52.30.0 - av_lockmgr_register()
av_lockmgr_register() can be used to register a callback function
that lavc (and in the future, libraries that depend on lavc) can use
to implement mutexes. The application should provide a callback function
the implements the AV_LOCK_* operations described in avcodec.h.
When the lock manager is registered FFmpeg is guaranteed to behave
correct also in a multi-threaded application.
20090301 - r17682 - lavf 52.31.0 - Generic metadata API
This version introduce a new metadata API (see av_metadata_get() and friends).
The old API is now deprecated and shouldn't be used anymore. This especially
include the following structure fields:
- AVFormatContext.title
- AVFormatContext.author
- AVFormatContext.copyright
- AVFormatContext.comment
- AVFormatContext.album
- AVFormatContext.year
- AVFormatContext.track
- AVFormatContext.genre
- AVStream.language
- AVStream.filename
- AVProgram.provider_name
- AVProgram.name
- AVChapter.title