ptrdiff_t is the correct type for array strides and similar.

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

CC: libav-stable@libav.org
Bug-Id: CID 1194387 / CID 1194389 / CID 1194393 / CID 1206638

Also switch from "tbl" to "tab" name suffixes.

Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.

There's no point in these pointers not being const.

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

Avoids crashes with corrupted files.

CC:libav-stable@libav.org

It does not help as an abstraction and adds dsputil dependencies.

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

It does not use any of the mpegvideo infrastructure, just a few fields
from the context.

Fixes a segfault with the emu edge flag, since emu edge buffer is now
allocated as a part of the frame buffer allocation and cavs calls
ff_get_buffer() directly, it does not use mpegvideo buffer management.

Fixes a memleak of the last frame.

Move some functions from dsputil. The idea is that videodsp contains
functions that are useful for a large and varied set of video decoders.
Currently, it contains emulated_edge_mc() and prefetch().

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

Defining tables in header files is ugly and prone to duplication.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

The square is always passed as 1 whenever the function is called and
thus the if block never gets executed.

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

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

FF_COMMON_FRAME holds the contents of the AVFrame structure and is also copied
to struct Picture.  Replace by an embedded AVFrame structure in struct Picture.

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

Originally committed as revision 24685 to svn://svn.ffmpeg.org/ffmpeg/trunk

Passing an explicit filename to this command is only necessary if the
documentation in the @file block refers to a file different from the
one the block resides in.

Originally committed as revision 22921 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22729 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21835 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 21377 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 18494 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 17138 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 17137 to svn://svn.ffmpeg.org/ffmpeg/trunk

Otherwise doxygen complains about ambiguous filenames when files exist
under the same name in different subdirectories.

Originally committed as revision 16912 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16681 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16642 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 16641 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 12525 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 10023 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9834 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9792 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 9533 to svn://svn.ffmpeg.org/ffmpeg/trunk

make commonly used tables global

Originally committed as revision 9532 to svn://svn.ffmpeg.org/ffmpeg/trunk

make commonly used functions global

Originally committed as revision 9519 to svn://svn.ffmpeg.org/ffmpeg/trunk