The asm code is not valid for older compilers as it uses too many
operands, ICC on x86_32 seems affected by this.
This patch disables the affected code for ICC on x86_32 and should
make it compileable again.
A better fix would be to use fewer operands or to change this code
to yasm, later is being worked on AFAIK so this is a temporary
solution.

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

Remove some pointless comments and empty lines.

Fixes Ticket2041

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

Using a frame count, as is done currently, does not work at all with
seeking. Instead, when the number of samples in the final frame has
been decoded, we check if only the 32-bit CRC is remaining. If so, we
assume that it is the final frame.

There is no longer a need to keep total_frames in TTAContext.

Beginning with version 1.5.1 openjpeg defaults to install its headers to
/usr/include/openjpeg-${major}.${minor} instead of /usr/include without
providing a compatibility symlink making the old test fail.

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

Improves the file from Ticket2050

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

Sometimes the extradata has duplicate atoms, but that shouldn't prevent
decoding. Just ensure that it is at least 36 bytes as a sanity check.

CC: libav-stable@libav.org

Fixes Bug 402

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

Also replace relevant bytestream2 functions with unchecked variants due
code that already checks for overreads.

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

These are all part of splited out dsp utils from FFmpeg

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

Code originates from:
910b9f30 libavcodec/dsputil.c            (David Conrad        2010-05-27 04:39:27 +0000  334) void ff_emulated_edge_mc(uint8_t *buf, const uint8_t *src, int linesize, int block_w, int block_h,
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  335)                                     int src_x, int src_y, int w, int h){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  336)     int x, y;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  337)     int start_y, start_x, end_y, end_x;
b5a093b3 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-25 20:22:36 +0000  338)
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  339)     if(src_y>= h){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  340)         src+= (h-1-src_y)*linesize;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  341)         src_y=h-1;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  342)     }else if(src_y<=-block_h){
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  343)         src+= (1-block_h-src_y)*linesize;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  344)         src_y=1-block_h;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  345)     }
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  346)     if(src_x>= w){
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  347)         src+= (w-1-src_x);
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  348)         src_x=w-1;
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  349)     }else if(src_x<=-block_w){
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  350)         src+= (1-block_w-src_x);
225f9c44 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-15 00:25:53 +0000  351)         src_x=1-block_w;
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  352)     }
93a21abd libavcodec/mpegvideo.c          (Michael Niedermayer 2002-07-14 18:37:35 +0000  353)
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  354)     start_y= FFMAX(0, -src_y);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  355)     start_x= FFMAX(0, -src_x);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  356)     end_y= FFMIN(block_h, h-src_y);
b8a78f41 libavcodec/mpegvideo.c          (Michael Niedermayer 2002-11-10 11:46:59 +0000  357)     end_x= FFMIN(block_w, w-src_x);

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

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

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

It breaks some opaque samples.

This reverts commit d4fdaafdb7.

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

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

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

This fixes the colour of the transparent background (as seen with ffplay),
and makes the background of some non-keyframes transparent that was
incorrectly shown as opaque for some samples.

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

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

Across the many retouches those did not make the main commit.

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>

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

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

These where reduced in f1d8763a02
and this change can cause out of array accesses.

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

Fixes CVE-2012-2803.

CC: libav-stable@libav.org

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

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

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

Based on code by Janne Grunau

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

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

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

Based on a patch by Janne Grunau
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Based on patch by Janne Grunau

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

Fixes bug 396.

CC: libav-stable@libav.org

The VC1 decoder uses edge_emu_buffer simultaneously for luma and chroma
and needs more space. That was not a problem before f1d8763a02
since the size for edge_emu_buffer was always calculated with 2 byte per
pixel since the linesize was not known.

Fixes occasionally fate errors in vc1_sa10143.

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

Also adds forgotten Changelog entry.