That hardcodes the number of pixel formats into lavfi and will break
when a shared lavu is updated, adding new pixel formats.

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

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Simplify/extend syntax.

Currently the min and max values are not honored, but this will change in
a following patch.

Previously it was partly only added to central functions called
internally, however if GCC would inline these into the public fuction, the
alignment attribute would not take effect.

Instead, add it to all public entry points to avoid these problems.

Signed-off-by: Martin Storsjö <martin@martin.st>

Previously it was partly only added to central functions called
internally, however if GCC would inline these into the public fuction, the
alignment attribute would not take effect.

Instead, add it to all public entry points to avoid these problems.

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

Signed-off-by: Paul B Mahol <onemda@gmail.com>

The functions which actually drive the filter graph by pushing
frames through it need to ensure an aligned stack for SIMD functions.

This fixes a crash in YADIF filter when using a mingw build in a MSVC
application.

Signed-off-by: Martin Storsjö <martin@martin.st>

The line was lost during the AVFrame transition.
It causes programs relying on the failed requests count,
especially ffmpeg, to add frames to the wrong input.

Fix trac ticket #2467.

Conflicts:

	libavfilter/avfilter.c
	libavfilter/vf_drawtext.c
	libavfilter/vf_lut.c
	libavfilter/vf_select.c
	libavfilter/vf_setpts.c
	libavfilter/vsrc_color.c
	libavfilter/vsrc_movie.c

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

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

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

Merge and adapt commit d28cb84 by Anton Khirnov.

Vertical shift is log2_chroma_h, not log2_chroma_w.

Number of planes is not always equal to the number of components even
for formats marked with PIX_FMT_PLANAR -- e.g. NV12 has three components
in two planes.

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

Introduced in 01649c7, lost in the API change.

It is supposed to be height * linesize, not width * linesize.
Thanks to Hendrik Leppkes for pointing out the bug.

The functions which actually drive the filter graph by pushing
frames through it need to ensure an aligned stack for SIMD functions.

This fixes a crash in YADIF filter when using a mingw build in a MSVC application.

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

frame = NULL is used to indicate EOF.

The PUSH flags is necessary for efficient scheduling;
otherwise there is no feedback when adding frames to
closed paths.

The NO_CHECK_FORMAT is a small optimization that does
not cost much to implement.

The KEEP_REF flag maps to the add/write distinction in
the fork's API.

Deprecate AVFilterBuffer/AVFilterBufferRef and everything related to it
and use AVFrame instead.

If buffersrc was configured for frames with an unknown layout,
the incoming frames will have channel_layout = 0.
If the format negotiation has selected a known (and compatible)
channel layout for the link, the frame is assumed to have
that layout, the field must be set before injecting the frame
in the filters.

Note: The ret variable was unused.

The sample rate and channel layout are negotiated and set
by the filter graph system, the filters must not set them.

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

Based on patch by Anton Khirnov
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Any alleged performance benefits gained from the split are purely
mythological and do not justify added code complexity.

Also reorder some other #include when applicable.

Several filters support this already.

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

A number of compilers, for example those from TI and IBM, choke on
these initialisers.  The current style is also quite ugly.

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

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

Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Martin Storsjö <martin@martin.st>