Fixes Ticket3540

The function dirac_get_arith_bit in libavcodec/dirac_arith.h can't be
built with PIC and check-stack because the asm code needs 6 registers
and PIC and check-stack options take 1 each and x86 is quite limited
in this area.
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>

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

* qatar/master:
  mpegvideo: operate with pointers to AVFrames instead of whole structs

Conflicts:
	libavcodec/h261dec.c
	libavcodec/h263dec.c
	libavcodec/intrax8.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo.h
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/mpegvideo_xvmc.c
	libavcodec/msmpeg4.c
	libavcodec/ratecontrol.c
	libavcodec/vaapi.c
	libavcodec/vc1dec.c
	libavcodec/vdpau_vc1.c

See: fc567ac4Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '60fd7d36':
  fate: correctly set sample rate for mp2 tests

Conflicts:
	tests/fate/acodec.mak
	tests/lavf-regression.sh

one hunk has been ommited as it breaks fate
Merged-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>

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

* qatar/master:
  doc: Completely document the x264 options

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

* commit '0d671ade':
  doc: Use a 3 columns multitable

Conflicts:
	doc/encoders.texi

No change as we dont use a multitable for this list
we could of course switch to one though if it looks better
comments welcome
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'be59675a':
  doc: Change the multitable rendering in texi2pod

Conflicts:
	doc/texi2pod.pl
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '59388dac':
  fate: update tests for YVYU422 pixel format

Conflicts:
	tests/ref/fate/filter-pixdesc
	tests/ref/fate/filter-pixfmts-copy
	tests/ref/fate/filter-pixfmts-null
	tests/ref/fate/filter-pixfmts-scale
	tests/ref/fate/filter-pixfmts-vflip

No change as the fate tests where updated in the merges that changed
the scores
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'b6a09ef7':
  rawvideo: Support decoding YVYU422 FourCC

See: ab7d6cb8Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '92b099da':
  swscale: support converting YVYU422 pixel format

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

* commit '8b17243d':
  lavu: Add packed YVYU422 pixel format

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

* commit '46439e15':
  mp2: match twolame default options

Not merged as the change breaks fate, also forcing resampling to specific sample rate
reduces quality, and would be like rescaling every movie to 1080.
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '718907cd':
  libtwolame MP2 encoding support

Conflicts:
	Changelog
	configure
	doc/general.texi
	libavcodec/Makefile
	libavcodec/libtwolame.c
	libavcodec/version.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The most interesting parts are initialization in ff_MPV_common_init() and
uninitialization in ff_MPV_common_end().

ff_mpeg_unref_picture and ff_thread_release_buffer have additional NULL
checks for Picture.f, because these functions can be called on
uninitialized or partially initialized Pictures.

NULL pointer checks are added to ff_thread_release_buffer() stub function.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

swscale/utils: scale filter_size in warning so that it can be used as max for the compile time define
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

And fix an option mismatch.

Make the html output much nicer.

Makes it working better for our documentation purposes.

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

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

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

Avoids a warning with gcc 4.7 and -Wtype-limits. Albeit
superfluous (At least gcc 4.8 didnt consider this been
a problem).
Signed-off-by: Reynaldo H. Verdejo Pinochet <r.verdejo@sisa.samsung.com>

Reviewed-by: Thilo Borgmann <thilo.borgmann@mail.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

swscale/swscale_internal: make the offset strings update themselfs when the MAX_FILTER_SIZE is changed
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>

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