h264: use avpriv_request_sample for chroma_format_idc
vp9/x86: intra prediction SIMD.

Partially based on h264_intrapred. (I hope to eventually merge these
two intrapred implementations back together.)
vp9: split decode_coeff_b loop inside txsz branch.

The advantage of this is that the is32x32 division branch in
decode_coeffs_b is removed from the inner loop to outside the block
coef decoding loop in decode_coeffs. Also, it allows us to merge the
txsz branches from the block coef decoding loop, the context merge
and the context split.
doc/examples: remove pathes from doxy examples

This makes the examples page less cluttered

Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
tta/x86: add ff_ttafilter_process_dec_{ssse3, sse4}

Results are from a Win64 build running on an AMD FX 6300

1121 decicycles in ttafilter_process_dec_c, 16777112 runs, 104 skips
522 decicycles in ff_ttafilter_process_dec_ssse3, 16777149 runs, 67 skips
477 decicycles in ff_ttafilter_process_dec_sse4, 16777156 runs, 60 skips

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
doxygen: Add a number of missing function parameter descriptions
doxygen: Replace @parblock syntax with manual linebreaks

@parblock is only supported in very recent Doxygen versions.
Fix libswresample compilation with Apple Neon assembler.

Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>
avcodec/vp8dsp: evaluate CONFIG_VP7_DECODER/CONFIG_VP8_DECODER

Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/ansi: fix integer overflow

Fixes out of array read
Fixes: 5f9698e86d92f19bb08d54ff0d57027f-signal_sigsegv_b30756_3795_cov_2693691257_ansi256.ans
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '614b9e4db8f3d7c23fc0410fc04745a727a82f4e'

* commit '614b9e4db8f3d7c23fc0410fc04745a727a82f4e':
  h264: use avpriv_request_sample for chroma_format_idc

Conflicts:
	libavcodec/h264_ps.c

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '4d7ab5cfebef91820af2933ef2f622ea598e6b53'

* commit '4d7ab5cfebef91820af2933ef2f622ea598e6b53':
  doxygen: Add a number of missing function parameter descriptions

Conflicts:
	libavformat/avformat.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  doxygen: Replace @parblock syntax with manual linebreaks

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avformat/bink: Check return value of av_add_index_entry()

Fixes null pointer dereference
Fixes: cdbf15cbd0a27cee958dd0b8800e452e-signal_sigsegv_737991_2083_cov_317652874_LBSTART.BIK
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/snow: split block clipping checks

Fixes out of array read
Fixes: d4476f68ca1c1c57afbc45806f581963-asan_heap-oob_2266b27_8607_cov_4044577381_snow_chroma_bug.avi
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/huffyuvdec: use the correct height field

Fixes Ticket3395

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'cehoyos/master'

* cehoyos/master:
  Fix libswresample compilation with Apple Neon assembler.

Merged-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/huffyuvdec: use RGB0 for 24bit rgb output instead of BGRA

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
vp9/x86: set correct number of registers used in intra pred asm

Reviewed-by: "Ronald S. Bultje" <rsbultje@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
avcodec/exr: read layers

EXR files have, like tiffs, multiple channels and layers.  I have a
patch for exr.c that allows you to select the layer you want to process
thru a -layer flag.  It is not bulletproof but works for all layers that
have 3 channels in them (normals, motion vectors, etc).
The calling convention for ffmpeg is:

ffmpeg -layer Diffuse -i myexr.%d.exr test.mov

Here's an exr image with multiple layers:

http://www.datafilehost.com/d/e45d9a1c

Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>