Those functions are only useful inside filters. It is better to not
support user filters until the API is more stable.

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

headers.

Originally committed as revision 25838 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25182 to svn://svn.ffmpeg.org/ffmpeg/trunk

Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk

is deprecated and will be dropped at the next major bump.

Originally committed as revision 22735 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22595 to svn://svn.ffmpeg.org/ffmpeg/trunk

other is enabled.

Originally committed as revision 22577 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22576 to svn://svn.ffmpeg.org/ffmpeg/trunk

function.

Originally committed as revision 21550 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

noformat and null filters.

Originally committed as revision 20443 to svn://svn.ffmpeg.org/ffmpeg/trunk

"video format and noformat filters" to
"format and noformat video filters",
as suggested by Diego.

Originally committed as revision 20442 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 20441 to svn://svn.ffmpeg.org/ffmpeg/trunk

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