AVFilterContext.extra_hw_frames functions identically to the field of
the same name in AVCodecContext.

Also adds a new flag to mark filters which are aware of hwframes and
will perform this task themselves, and marks all appropriate filters
with this flag.

This is required to allow software-mapped hardware frames to work,
because we need to have the frames context available for any later
mapping operation in the filter graph.

The output from the filter graph should only propagate further to an
encoder if the hardware format actually matches the visible format
(mapped frames are valid here and have an hw_frames_ctx, but this
should not be given to the encoder as its hardware context).

Deprecated in 11/2012.

Deprecated in 06/2012.

Deprecated in 06/2012.

This applies to every library where performance is not critical.

Mostly based on libavcodec's

Since we do not support "standalone" filters not attached to an
AVFilterGraph, we should not have a public function to create such
filters. In addition that function is horribly named, the action it does
cannot be possibly described as "opening" a filter.

Deprecate AVFilterBuffer/AVFilterBufferRef and everything related to it
and use AVFrame instead.

Any alleged performance benefits gained from the split are purely
mythological and do not justify added code complexity.

This breaks libavfilter ABI.

This is more consistent with naming in the rest of Libav.

It will allow adding new fields to it without ABI breaks.

They are only useful inside filters and we don't allow user filters for
now.

They are only useful inside filters and we don't allow user filters for
now.

They are not used outside of avfiltergraph.c

This is easier to follow than having them randomly scattered in
avfilter.c and defaults.c.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Add missing multiple inclusion guards; clean up #endif comments;
add missing library prefixes; keep guard names consistent.

Signed-off-by: Mans Rullgard <mans@mansr.com>

This removes ff_get_ref_perms_string, ff_dprintf_ref and ff_dprintf_link
fro the interface of libavfilter.

Signed-off-by: Mans Rullgard <mans@mansr.com>

it can be referenced outside defaults.c.

Originally committed as revision 25826 to svn://svn.ffmpeg.org/ffmpeg/trunk

ff_avfilter_graph_check_validity()
ff_avfilter_graph_config_links()
ff_avfilter_graph_config_formats()

and move their declaration to internal.h. These functions are never
used in application code, so it is better to consider them internal
functions, this can be changed later if necessary. Simplify API.

Originally committed as revision 25737 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24900 to svn://svn.ffmpeg.org/ffmpeg/trunk

The function is going to be used to represent also audio data.

Originally committed as revision 24846 to svn://svn.ffmpeg.org/ffmpeg/trunk

The struct is going to be used for storing audio buffer references as
well, and the new name is more generic.

Patch by S.N. Hemanth Meenakshisundaram @smeenaks@ucsd@edu@.

Originally committed as revision 24730 to svn://svn.ffmpeg.org/ffmpeg/trunk

internal.h header, so they can be easily used from other files.

Originally committed as revision 24319 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 23637 to svn://svn.ffmpeg.org/ffmpeg/trunk

This is needed by the current SOC-ffmpeg.c code.

Originally committed as revision 23039 to svn://svn.ffmpeg.org/ffmpeg/trunk

since subframe length is the same in all G.729 modes.

Originally committed as revision 19187 to svn://svn.ffmpeg.org/ffmpeg/trunk

Consistently apply this rule: the guard name is obtained from the
filename by stripping the leading "lib", converting '/' and '.'  to
'_' and uppercasing the resulting name. Guard names in the root
directory have to be prefixed by "FFMPEG_".

Originally committed as revision 15120 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14916 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14915 to svn://svn.ffmpeg.org/ffmpeg/trunk

(just skeleton, contains only parts, explicitly ok'ed by Michael)

Originally committed as revision 14800 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10877 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10765 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9356 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9345 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9344 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8448 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 8158 to svn://svn.ffmpeg.org/ffmpeg/trunk