Same functionality is provided by libswscale.
Signed-off-by: NPaul B Mahol <onemda@gmail.com>

The filter is useless, swscale should be used instead.
Signed-off-by: NPaul B Mahol <onemda@gmail.com>

It can be useful for debugging.

Based on a patch by Stefano Sabatini <stefano.sabatini-lala@poste.it>

They are part of the public API. Their libav compatibility
counterpart are already enabled unconditionally.

The native filter transpose is perfectly equivalent.

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

It was natively integrated into libavfilter.

This filter is based on the MPlayer decimate filter by Rich Felker.

It was natively integrated into libavfilter.

This is a port of the MPlayer smartblur filter (libmpcodecs/vf_smartblur.c)
by Michael Niedermayer.
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>

The file contains the asetpts audio filter.

Signed-off-by: NMichael Niedermayer <michaelni@gmx.at>

An equivalent framestep filter has been natively integrated.

This filter is inspired upon libmpcodecs/vf_framestep.c, by Daniele
Forghieri.

Only-keyframe output is not supported, since that feature can be achieved
through the more versatile select filter.

hue was integrated as a native libavfilter filter.

This is a port of the MPlayer hue filter (libmpcodecs/vf_hue.c) by
Michael Niedermayer.
Signed-off-by: NJérémy Tran <tran.jeremy.av@gmail.com>
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>

Based on an idea by Andrey Utkin <andrey.krieger.utkin@gmail.com>.

Patch readapted by Stefano Sabatini, color values proposed by Tim
Nicholson <nichot20@yahoo.com>.

Address trac ticket #1462.

See thread:
Subject: [FFmpeg-devel] [PATCH] smptebars filter
Date: Wed, 20 Jun 2012 01:54:58 +0000
Signed-off-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>

Since the recent changes, movie and amovie are able to deal with more
than one type of stream, so they should be categorized as "multimedia
sources" rather than audio/video sources.

These filters are designed for storing and transmitting video sequences
with alpha using higher-efficiency codecs such as x264 which don't
natively support an alpha channel. 'alphaextract' takes an input stream
with an alpha channel and returns a video containing just the alpha
component as a grayscale value; 'alphamerge' takes an RGB or YUV stream
and adds an alpha channel recovered from a second grayscale stream.
Signed-off-by: NSteven Robertson <steven@strobe.cc>
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>

This tool uses lavfi internal symbols not accessible in shared
libraries.  TESTPROGS are linked statically to allow them use of
library internals not normally exported.
Signed-off-by: NMans Rullgard <mans@mansr.com>

Inspired by MPlayer's af_channels filter and SoX's remix effect.

It joins multiple input streams into one multi-channel output.

It will be used for audio too.

Add atempo audio filter for adjusting audio tempo without affecting
pitch. This filter implements WSOLA algorithm with fast cross
correlation calculation in frequency domain.
Signed-off-by: NPavel Koshevoy <pavel@homestead.aragog.com>
Signed-off-by: NStefano Sabatini <stefasab@gmail.com>