Fixes integer overflow and out of array accesses

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

Signed-off-by: Michael Karcher <ffmpeg@mkarcher.dialup.fu-berlin.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

This allows decoding gifs that have junk at the begin
and also allows byte wise seeking
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

* qatar/master:
  avfilter: allow setpts filter to use wallclock time for calculations

Conflicts:
	doc/filters.texi
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b85a5e87':
  lavu: Add av_strnstr()
  h264: Allow discarding the cropping information from SPS

Conflicts:
	Changelog
	doc/APIchanges
	libavcodec/avcodec.h
	libavcodec/version.h
	libavutil/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '33552a5f':
  arm: Add mathops.h to ARCH_HEADERS list
  avstring: K&R formatting cosmetics

Conflicts:
	libavutil/avstring.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '2c10e2a2':
  build: Make the H.264 parser select h264qpel
  x86: h264qpel: add cpu flag checks for init function

Conflicts:
	libavcodec/x86/h264_qpel.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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

Now allocation is done only if av_image_check_size() passes.
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>

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

* commit '6bdb841b':
  arm: h264qpel: use neon h264 qpel functions only if supported

* bug was fixed previously (in merge of buggy code):
  h264: copy h264qpel dsp context to slice thread copies
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

This is a length limited version of strstr()
Signed-off-by: Vladimir Pantelic <vladoman@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Some 3D systems overload the meaning of the field for other purposes.
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

Fixes out of array writes

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

Fixes out of array reads

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

Fixes out of array access

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

Fixes ticket #2183.

Found-By: Justin Ruggles

Fixes out of array accesses

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

These where lost when libav moved the code out of dsputil
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes integer overflow and prints an error in case the value is
invalid.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Matthieu Bouron <matthieu.bouron@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

It is an arch-specific header not suitable for standalone compilation.

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

It is required for building the shared H.264 code.