Calculation of x an y based on width and height did not work when
width == 0 or height == 0.  "0" substitutes the input width and
height, but did so too late for x, y expression evaluation.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This reverts commit 63be97ec40.

All those calls were unchecked on purpose, as explained in the comments
in the code.

CC: libav-stable@libav.org
Bug-Id: CID 703624

This is shorter and consistent across filters.

Avoid buffer overflow in buffer_needs_copy()

Signed-off-by: Xi Wang <xi.wang@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

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

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

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>

Fixes Bug 203.

CC:libav-stable@libav.org

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

This reduces code duplication and prevents stale pointers from remaining
on the link.

This reduces code duplication and prevents stale pointers from remaining
on the link.

It is not used in any filters currently and is inherently evil. If
passing binary data to filters is required in the future, it should be
done with some AVOptions-based system.

It will allow adding new fields to it without ABI breaks.

They are only useful inside filters and we don't allow user filters for
now.

They are only useful inside filters and we don't allow user filters for
now.

It is only useful inside filters and we don't allow user filters for
now.

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

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

Also remove outdated reference to color in vf_pad.c.

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

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

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

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

Move the color source code from vf_pad.c to vsrc_color.c.

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

Add drawutils.h and drawutils.c, and use them in the pad filter.
The new functions are going to be shared by other filters.

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

It is pretty hopeless that other considerable projects will adopt
libavutil alone in other projects. Projects that need small footprint
are better off with more specialized libraries such as gnulib or rather
just copy the necessary parts that they need. With this in mind, nobody
is helped by having libavutil and libavcore split. In order to ease
maintenance inside and around FFmpeg and to reduce confusion where to
put common code, avcore's functionality is merged (back) to avutil.

Signed-off-by: Reinhard Tartler <siretart@tauware.de>

Originally committed as revision 26320 to svn://svn.ffmpeg.org/ffmpeg/trunk

Previously the pad filter just drawed borders in the surrounding of the input
without checking if this area was allocated or writeable. Now we check and
allocate a new buffer if the input is unsuitable.

Originally committed as revision 26315 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 26217 to svn://svn.ffmpeg.org/ffmpeg/trunk

headers.

Originally committed as revision 25838 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25761 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25759 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25744 to svn://svn.ffmpeg.org/ffmpeg/trunk

corresponding AVMEDIA_TYPE_* symbols.

Originally committed as revision 25201 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 25058 to svn://svn.ffmpeg.org/ffmpeg/trunk

Define a new struct AVFilterBufferRefVideoProps and add a type field
to AVFilterBufferRef.

Video specific properties in AVFilterBufferRefVideoProps are now
referred to by *video pointer in AVFilterBufferRef.

Patch by S.N. Hemanth Meenakshisundaram smeenaks->ucsd.edu.

Originally committed as revision 24763 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVFilterLink.srcpic    ->  AVFilterLink.src_buf
AVFilterLink.cur_pic   ->  AVFilterLink.cur_buf
AVFilterLink.outpic    ->  AVFilterLink.out_buf

The new names are more generic and more consistent, since the struct
they contain, which was named AVFilterPicRef, has been renamed to
AVFilterBufferRef.

Patch by S.N. Hemanth Meenakshisundaram %smeenaks%ucsd%edu%.

Originally committed as revision 24732 to svn://svn.ffmpeg.org/ffmpeg/trunk