The function is not implemented (and possibly useless).

Keep a heap of all sink links ordered by timestamps.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Allow creating interlaced bottom field first video.

Port MPlayer tinterlace filter from MPlayer, with some ideas taken
from the FFmbc/libavfilter port, with the following main differences:

* added support for full-scale YUVJ formats
* added support for YUVA420P
* request_frame() on the filter is forced to return a frame
* some code factorization (related to the copy_picture_fields() function)
* fixed black padding values for mode 3

Rationale: avfilter_copy_frame_props() was already defined in
libavfilter/avcodec.h, and keeping the lavc/lavfi API glue localized in a
specific file should ease maintainance and help the ones which use
libavfilter without depending on libavcodec.

avfilter_copy_frame_props() avoids code duplication and increases
robustness.

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

With this the application can find out how many frames are available.

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

It makes more sense for a bit mask to use an unsigned type.
The change should be source and binary compatible on all
supported systems, hence micro version bump.

Fixes a few invalid shifts.

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

Original code by Clément Bœsch.
Parameters parsing and misc enhancements by Nicolas George.

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

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Extend fade syntax, required by a pending patch.

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Extend syntax, allow to easily add more options later.

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

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

Factorize code, extend the functionality of the filter, and make it
return empty buffers. This is useful for filters which ignore the input
frames content.

This is also changing the syntax of the nullsrc source, and dropping the
framerate expression evaluation, which does not look particularly useful.

The licence was changed from GPL to LGPL with explicit approval from
the original author.

See thread:
Subject: [FFmpeg-devel] [PATCH] lavfi: add rgbtestsrc source,
        ported from MPlayer libmpcodecs
Date: Mon, 11 Jul 2011 16:32:41 +0200

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

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

The ported filter supports named option parsing and more YUV formats.

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

With the following additions:
* support to gray format
* support to yuva420p format
* parametric luma/chroma/alpha radius
* consistency check on the radius values, avoid crashes with invalid values

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

This filter is a simple wrapper around the LUT filter.

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

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

Fix ABI break occurred after their use.

Bug reported and patch provided by chinsou, fix trac issue #516,
+80cola for me.

Also create a "dar" alias for the "a" variable, for avoiding possible
confusion between dar/sar.

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

Require "void *" rather than "AVClass *" for the log context type.

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

Address trac issue #378.