*avff, so that an AVFilterFormats struct is created and returned by
the function if *avff is NULL.

Make the function use more convenient.

Originally committed as revision 21035 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21007 to svn://svn.ffmpeg.org/ffmpeg/trunk

XXX_license() functions, consistent with the rest of FFmpeg.

Originally committed as revision 21005 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoid the need to implement slice direction detection code, thus
reducing code duplication.

See the thread:
"[FFmpeg-devel] [PATCH] Add a slice_dir parameter to avfilter_start_frame()".

Originally committed as revision 20734 to svn://svn.ffmpeg.org/ffmpeg/trunk

The assumption depends on the corresponding assumption done by
sws_scale() and by the scale filter.

Originally committed as revision 20655 to svn://svn.ffmpeg.org/ffmpeg/trunk

to be used since the implementation of the new filter registration
system.

Originally committed as revision 20611 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20607 to svn://svn.ffmpeg.org/ffmpeg/trunk

Create a new static array containing pointers to the AVFilter
definitions, so that the non-constant next filter in the AVFilter
struct is not anymore required and the AVFilter definitions may be
stored in shareable memory.

Also change the signature for avfilter_register(), make it return an
int since it may fail if there is not enough space in the static array
for the registered filters.

Originally committed as revision 20605 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20547 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20544 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20519 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20445 to svn://svn.ffmpeg.org/ffmpeg/trunk

avfilter_default_get_video_buffer() if the get_video_buffer() callback
is not defined in a filter.

Libavfilter filters author have to explicitely define the
get_video_buffer() callback if they want the buffer to be requested to
the filter following in the filterchain.

See the thread:
"[FFmpeg-devel] [PATCH] Make avfilter_get_video_buffer() use
default_get_video_buffer if callback not defined".

Originally committed as revision 20444 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20391 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20390 to svn://svn.ffmpeg.org/ffmpeg/trunk

Simplify the registration and iteration of all the registered filters,
consistent with what is done with formats / codecs.

Originally committed as revision 20385 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVFilter, where it should have had defined the first time.
+10L.

Originally committed as revision 20356 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20354 to svn://svn.ffmpeg.org/ffmpeg/trunk

argument of avfilter_make_format_list(), as the argument represents a
list of elements.

Originally committed as revision 20341 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20340 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20302 to svn://svn.ffmpeg.org/ffmpeg/trunk

avfilter_make_format_list2().

Originally committed as revision 20301 to svn://svn.ffmpeg.org/ffmpeg/trunk

avfilter_make_format_list().

See the thread:
"[PATCH] Implement avfilter_make_format_list2(enum PixelFormat pix_fmt, ...)".

Originally committed as revision 20299 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVFilterFormats.formats field.
Cleaner / safer.

Originally committed as revision 20274 to svn://svn.ffmpeg.org/ffmpeg/trunk

When called on a link with a filter whose destination pad has not a
get_video_buffer callback defined, it will call
avfilter_get_video_buffer() on the first output link of the
destination filer, rather than use avfilter_default_get_buffer(), so
the video buffer can be allocated forward in the filterchain.

Also add the w and h parameters to avfilter_get_video_buffer(), as the
minimum width and height requested by each filter in the filterchain
may change, this allows for example a memcpy-less pad filter.

This change breaks API / ABI backward compatibility.

See the thread:
"[PATCH] Implement recusive avfilter_get_video_buffer()".

Originally committed as revision 20272 to svn://svn.ffmpeg.org/ffmpeg/trunk

See the thread:
"[FFmpeg-devel] [PATCH] Add w,h fields to AVFilterPic".

Originally committed as revision 20189 to svn://svn.ffmpeg.org/ffmpeg/trunk

next sentence, consistent with the FFmpeg documentation style.

Originally committed as revision 18824 to svn://svn.ffmpeg.org/ffmpeg/trunk

inconsistent '\p'.

Originally committed as revision 18823 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18198 to svn://svn.ffmpeg.org/ffmpeg/trunk

value in the args for the auto-inserted scale filters.

Originally committed as revision 17547 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16809 to svn://svn.ffmpeg.org/ffmpeg/trunk

avfilter_draw_slice() when the draw_slice callback is not defined in
the input pad.

Originally committed as revision 16554 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16517 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16405 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16384 to svn://svn.ffmpeg.org/ffmpeg/trunk

a negative value in case of error.

Originally committed as revision 16372 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 15009 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 15008 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 14669 to svn://svn.ffmpeg.org/ffmpeg/trunk