Avoid a failure with the default value of "NTSC". Not all drivers
support a standard.

Improve readability.

Signed-off-by: Mans Rullgard <mans@mansr.com>

instead of just 0 to 4.

This does all the actual bit counting as a final step.

No speed difference. This is to allow for more flexible bit counting.

rather than in the AC3Block struct.

This will make it easier to access the bap values without having to chase
the reference block pointers each time.

Also deprecate avcodec_get_pix_fmt_name() in its favor.

Make ff* tools only accept opt_* functions taking two arguments.

The distinction between functions with one and two arguments is quite
pointless. Simplify parse_options() code.

This silences numerous compiler warnings from skip_bits(),
where the cache variable is not used.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

This adds output operands for modified memory allowing the
volatile qualifiers to be dropped.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

This uses one register less.  Also add missing "cc" clobber.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Aligned local variables must use the LOCAL_ALIGNED macro to ensure
correct alignment on all systems.  The unusual size argument to
memset is required since the implementation of LOCAL_ALIGNED may
use a pointer to an array.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Also deprecate avcodec_get_pix_fmt_name() in its favor.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

Make ff* tools only accept opt_* functions taking two arguments.

The distinction between functions with one and two arguments is quite
pointless. Simplify parse_options() code.

Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>

via the equivalent AVCodecContext::mb_threshold

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

Create a stereo_mode metadata tag to specify the stereo 3d video layout
using the StereoMode tag in a matroska/webm video track.

Many functions have such a prefix, but do not actually use any
instructions or features from that set, thus giving the false
impression that swscale is highly optimized for a particular
system, whereas in reality it is not.

Interleave macros and code so that it's easier to find the
actual code that belongs to a function. Also reindent where
appropriate and remove dead code.

This allows cutting up the function in much smaller and easier-
to-maintain chunks.

If that flag is set, swScale() already proxies the call to
yuv2rgbXinC_full(). Therefore, this flag is never set when
yuv2packed1() is called.

with minor addition to the comment by michael

with changes by michael to simplify API

* qatar/master: (29 commits)
  ARM: disable ff_vector_fmul_vfp on VFPv3 systems
  ARM: check for VFPv3
  swscale: Remove unused variables in x86 code.
  doc: Drop DJGPP section, Libav now compiles out-of-the-box on FreeDOS.
  x86: Add appropriate ifdefs around certain AVX functions.
  cmdutils: use sws_freeContext() instead of av_freep().
  swscale: delay allocation of formatConvBuffer().
  swscale: fix build with --disable-swscale-alpha.
  movenc: Deprecate the global RTP hinting flag, use a private AVOption instead
  movenc: Add an AVClass for setting muxer specific options
  swscale: fix non-bitexact yuv2yuv[X2]() MMX/MMX2 functions.
  configure: report yasm/nasm presence properly
  tcp: make connect() timeout properly
  rawdec: factor video demuxer definitions into a macro.
  rtspdec: add initial_pause private option.
  lavf: deprecate AVFormatParameters.width/height.
  tty: add video_size private option.
  rawdec: add video_size private option.
  x11grab: add video_size private option.
  x11grab: factorize returning error codes.
  ...

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

This adds basic stream format support and allows for arbitrary bit rates
rather than just those supported in AC-3.

use only selected options for the different AC-3 encoder types.

This function uses old-style vector operations deprecated in VFPv3.
Some implementations, e.g. Cortex-A9, support them only through
slow software emulation.  Cortex-A8 does have this functionality
in hardware, but as it also has NEON, this function is not used
there regardless.

Signed-off-by: Mans Rullgard <mans@mansr.com>

Signed-off-by: Mans Rullgard <mans@mansr.com>

libswscale/x86/swscale_template.c:2072: warning: unused variable ‘canMMX2BeUsed’
libswscale/x86/swscale_template.c:2145: warning: unused variable ‘canMMX2BeUsed’
libswscale/x86/swscale_template.c:2209: warning: unused variable ‘chrVPixBuf’
libswscale/x86/swscale_template.c:2237: warning: unused variable ‘chrVSrcPtr’