The gmc functions access more pixels than there is allocated memory.
Fixes out of array reads

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

slightly (~ 0.5%) faster, tested with time ./ffmpeg
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Fixes out of array read

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

Fixes null pointer dereference

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

This solution uses the size of the first RIFF if its valid
to check frame size validity when the filesize could not be determined.
Feedback is welcome, other ideas and improvments as well!
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

In particular we needed a '\n' at the end of the line when the format is emulated.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is consistent with the rest of the file and makes listing of
emulated formats possible when ffmpeg is compiled with libv4l2.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The reason for the failure is unknown, this needs to be debuged and fixed
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

* qatar/master:
  vmdav: convert to bytestream2
  FATE: add a test for the join filter
  FATE: add a test for the volume filter

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

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

* commit '43a8333a':
  FATE: add a test for the channelsplit filter
  FATE: add a test for the channelmap filter
  FATE: add a test for the negate filter
  FATE: add a test for the overlay filter

Conflicts:
	tests/fate/filter.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ea290d91':
  FATE: add a test for the setpts filter
  FATE: add a test for the hqdn3d filter
  FATE: add a test for the transpose filter
  FATE: add a test for the unsharp filter

Conflicts:
	tests/ref/fate/filter-hqdn3d
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1a6d4bd7':
  FATE: add a test for the fade filter
  FATE: add a test for the drawbox filter
  FATE: add a test for the boxblur filter
  FATE: add a test for the gradfun filter

Conflicts:
	tests/fate/filter.mak
	tests/ref/fate/filter-gradfun

our gradfun test is renamed to gradfun-ubitux as its name conflicts and
it was requested to be kept. Feel free to rename, change, finetune ...
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1ae44c87':
  lavfi/gradfun: remove rounding to match C and SSE code.
  lavfi/gradfun: fix dithering in MMX code.
  lavfi/gradfun: fix rounding in MMX code.
  lavfi/gradfun: do not increment DC pointer for odd values.
  fate: filter: Add dependencies
  avconv: add options for reading filtergraphs from a file.

Conflicts:
	Changelog
	doc/ffmpeg.texi
	doc/filters.texi
	ffmpeg.h
	ffmpeg_opt.c
	libavfilter/vf_gradfun.c
	tests/fate/filter.mak
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

* commit 'cf53704c':
  AVOptions: make av_set_options_string() forward options to child objects
  win32: Use 64-bit fstat/lseek variants for MSVC as well
  win32: Make ff_win32_open more robust

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

* commit 'e9cc9883':
  win32: Allow other programs to open the same files
  configure: Add error_resilience as dependency to the eatqi decoder

Conflicts:
	configure
	libavformat/os_support.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '472391b9':
  ape: use correct context for the bit table printed in debug
  build: Move setting of SRC_DIR to the only place it is used
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b4d24b47':
  build: Remove configure-generated .config file on distclean
  msmpeg4: Split decoding related functions to a separate file

Conflicts:
	Makefile
	libavcodec/Makefile
	libavcodec/msmpeg4.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e557584a':
  mpeg12: Move Mpeg1Context declaration to the only place it is used

Conflicts:
	libavcodec/mpeg12.h
	libavcodec/mpeg12dec.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1b6d6674':
  Split MPEG-1/2 decoder code off from MPEG-1/2 common code

Conflicts:
	libavcodec/Makefile
	libavcodec/mpeg12.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'eee2000b':
  mpeg12: Move some ff_mpeg1_* function declarations to a more suitable place
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b6649ab5':
  cosmetics: Remove unnecessary extern keywords from function declarations

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

* commit '1db6a080':
  dca: Move ff_dca_convert_bitstream() to the DCA common code
  vdpau: wrap codec specific functions in appropiate #ifs

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

* commit '757d8586':
  vdpau: fix obsolete mpeg1 vdpau decoder when mpeg2 is disabled

Conflicts:
	libavcodec/mpeg12.c

Nothing changes as the buggy code is not in ffmpeg
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'd767e2f9':
  configure: fix dependencies of XvMC and old vdpau mpeg2 decoders
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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