blackframe is integrated as a native filter.

The cropdetect filter is natively integrated into libavfilter.

Use and show picref->video->pict_type and key_frame information.
The pict_type and key_frame information was not available at the time
of the port.

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

cxtypes.h works with version 2.1 and older, cxcore.h works with 2.2 and older.
Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>

The filter was integrated natively into libavfilter as a source with
name rgbtestsrc.

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

In particular creates a special test_init function, which calls a
common init, and introduces a fill_picture_fn which points to the
filling function.

This is required by the pending patch for adding the rgbtestsrc
source.

It is natively included in libavfilter.

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

Declaring tools associated with each library in their respective
makefiles allows these tools to easily depend on the correct
prerequisites and link against the libs they need.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Since avfilter_graph_parse() creates the "[in]" inout for the first
unlabelled input pad, it is expected that it will create an "[out]"
inout for last unlabelled output pad, even in the case where it cannot
find any open input pad with that name.

This change removes the check on the existence of an open input pad
named "out", so it simplifies the checked condition while implementing
a more intuitive behavior.

It supports passing options to codecs.

Adds support for decoder-private options and makes setting other options
simpler.

libavfilter/vf_drawtext.c:427:22: warning: variable 'dst_pixel' set but not used
libavfilter/vf_drawtext.c:463:22: warning: variable 'dst_pixel' set but not used

Make it clear that open_inputs/open_outputs are updated only if non-NULL.

Create open_inputs and open_outputs structs if they are not provided by
the user, and free them before exit.

In particular, fix NULL pointer dereference and crash, in case the
passed open_inputs/outputs is NULL and the parsing failed.

It was shifting 2 rather than 1, +10l.

Also add a "dar" alias for "a", for avoiding confusion with sar/dar.

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

Actually I gave permission for LGPL long ago, but the original import
failed to update the license header.

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

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

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

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

Signed-off-by: Joakim Plate <elupus@ecce.se>

The value for inpic->data[plane] with plane >=4 is undefined, and it
will contain in general random data. This change adds a check for
exiting the loop when plane reaches the value 4.

Fix crash (occurring for example with: format=rgba,lut).

Also generalize it, making it accept ints rather than pixel formats.
Allow factorization.

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

The previous code was erroneously assuming that the linesize was
equivalent to width*pixel_step, which is not always true.

This reverts commit a6213f3d.