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

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

The new lowres support is limited to decoders where lowres decoding
is possible in high quality.
I was not able to measure any speed difference, but if one is found
the 2-3 lines that might affect speed can be made compile time conditional

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

This feature is complex, of questionable utility, and slows down
normal decoding.

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

In normal picture decoding this does not need to be checked but as
error concealment is run in the case of errors the availability of
references is less certain. This may be fixed differently at some
point so that all references are always filled in before the EC
code, in which case this should then be changed to an assert()

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This reverts commit 6193ff6854.

This change is unneeded.

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org

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

Fixes CVE-2011-3941 (out of bounds write)

Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

Fixes Ticket811
Bug found by: Oana Stratulat

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

Simplify a little error resilience calls

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

Add the namespace to {AC_,DC_,MV_}{END,ERROR} macros

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

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

(cherry picked from commit 5c2d016a85)

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

Signed-off-by: Janne Grunau <janne-libav@jannau.net>

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

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.

Fixes crashes when playing broken MPEG2-TS streams.

Without, the predictor isn't actually used.

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

Fixes NULL pointer dereference.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Looks better for some cases, worse for others, overall not much difference.
Its more correct though.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Just some cosmetics & comments, the only functional change
"error_resilience: use s->last_picture for accessing last MVs."
Is so buggy that it needs a full rewrite, guess -1.0 PSNR loss wasnt
enough for ronald to realize there was a problem.

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

no comment

This reverts commit e6ff064845.

Conflicts:

	libavcodec/dsputil.c

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

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

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 22877 to svn://svn.ffmpeg.org/ffmpeg/trunk

is no reference frame available. (this can happen because the EC code will attempt
to use reference frames even for I/IDR frames)

Originally committed as revision 22732 to svn://svn.ffmpeg.org/ffmpeg/trunk

Also revert the related error concealment hotfix.

Originally committed as revision 22640 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22612 to svn://svn.ffmpeg.org/ffmpeg/trunk

a proper fix appears to require changing h263/mpeg2/motion est to index ref_index like
h264. Ill do this change and then revert this hotfix but it will take a bit time.

Originally committed as revision 22608 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22603 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22572 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22520 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22517 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22485 to svn://svn.ffmpeg.org/ffmpeg/trunk