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.

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 a6213f3dce.

Calling Make from subdirectories is not supported and config.mak has
multiple inclusion guards anyway, so the top-level include is enough.

This avoid a crash with in avfilter_merge_formats() in case one of the
filter formats list has multiple time the same entry.

Thanks to Mina Nagy Zaki for helping figuring out the issue.

This fix introduces a small memleak

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

av_get_bits_per_sample_fmt() is deprecated.

Fix compilatin after removal of FF_INTERNAL_MEM_TYPE_MAX_VALUE.

Signed-off-by: Stefano Sabatini <stefano.sabatini-lala@poste.it>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fix warnings of the type:
vf_drawtext.c:NNN: warning: missing braces around initializer
vf_drawtext.c:NNN: warning: (near initialization for ‘drawtext_options[X].default_val’)

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

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

The feature was dropped after the filter was partially rewritten and
recommitted.

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

The list type was changed to int64_t to be able to hold
channel layouts.

avfilter_make_format_list() still takes a int32_t array and converts
it to int64_t. A new function, avfilter_make_format64_list, that
takes int64_t arrays has been added.

Replace sizeof((*avff)->formats)
with    sizeof(*(*avff)->formats)

as the size of the array element is given by the pointed element
rather than by its pointer.

In particular fix computation with the pending patch when
sizeof(int64_t) != sizeof(int64_t *).

Add a missing space between vsink_buffer.h and vsrc_buffer.h.
1000l.

Also add the public interface libavfilter/vsink_buffer.h.

Avoid timescale conversion, simplify.

This filter is a simple wrapper around the LUT filter.

-1 is more correct than 0, as the position in the file is undefined.

Also remove outdated reference to color in vf_pad.c.

Fix a crash occurring when open_inputs is NULL and *open_inputs is
checked, the crash was introduced by the recent avfilter_graph_parse()
syntax change.

In particular, fix graph2dot crash.

Deprecate the last remaining member of AVFormatParameters.

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

This is required for letting applications to create and destroy
AVFilterInOut structs in a convenient way.

Make it returns the list of open inputs and outputs, so it can be
reused by applications.

Breaks API/ABI.