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Merge remote-tracking branch 'qatar/master'

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* qatar/master: (22 commits)
  g723.1: do not pass large structs by value
  g723.1: do not bounce intermediate values via memory
  g723.1: declare a variable in the block it is used
  g723.1: avoid saving/restoring excitation
  g723.1: avoid unnecessary memcpy() in residual_interp()
  g723.1: make postfilter write directly to output buffer
  g723.1: drop unnecessary variable buf_ptr in formant_postfilter()
  g723.1: make scale_vector() output to a separate buffer
  g723.1: make autocorr_max() work on an arbitrary buffer
  g723.1: do not needlessly use int64_t
  g723.1: use saturating addition functions
  g723.1: optimise scale_vector()
  g723.1: remove useless uses of MUL64()
  g723.1: remove unnecessary argument 'shift' from dot_product()
  g723.1: deobfuscate "(x << 4) - x" to "15 * x"
  celp: optimise ff_celp_lp_synthesis_filter()
  libavutil: add saturating addition functions
  cllc: Implement ARGB support
  cllc: Add support for QRGB
  cllc: Rename some funcs to represent what they actually do
  ...

Conflicts:
	LICENSE
	libavcodec/g723_1.c
	libavcodec/x86/Makefile

Merged-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2012-08-13 14:38:43 +02:00
parent bd70a52712 69665bd6f4
commit d8c3170c9f
9 changed files with 203 additions and 154 deletions
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30
libavutil/common.h
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@ -186,6 +186,30 @@ static av_always_inline av_const unsigned av_clip_uintp2_c(int a, int p)
else return a;
}
/**
* Add two signed 32-bit values with saturation.
*
* @param a one value
* @param b another value
* @return sum with signed saturation
*/
static av_always_inline int av_sat_add32_c(int a, int b)
{
return av_clipl_int32((int64_t)a + b);
}
/**
* Add a doubled value to another value with saturation at both stages.
*
* @param a first value
* @param b value doubled and added to a
* @return sum with signed saturation
*/
static av_always_inline int av_sat_dadd32_c(int a, int b)
{
return av_sat_add32(a, av_sat_add32(b, b));
}
/**
* Clip a float value into the amin-amax range.
* @param a value to clip
@ -392,6 +416,12 @@ static av_always_inline av_const int av_popcount64_c(uint64_t x)
#ifndef av_clip_uintp2
# define av_clip_uintp2 av_clip_uintp2_c
#endif
#ifndef av_sat_add32
# define av_sat_add32 av_sat_add32_c
#endif
#ifndef av_sat_dadd32
# define av_sat_dadd32 av_sat_dadd32_c
#endif
#ifndef av_clipf
# define av_clipf av_clipf_c
#endif