diff options
| author | Justin Ruggles <justin.ruggles@gmail.com> | 2011-06-30 17:48:44 -0400 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2011-07-01 13:02:11 -0400 |
| commit | f99a5ef92e5aba87a2d861822274147c994041d5 (patch) | |
| tree | 8e230203f5e6e3b7d89758d3cc1507380bc846bd /libavcodec/x86/ac3dsp_mmx.c | |
| parent | 8b7b2d6aaee8cef0051beb3a4cf3e1c5a87cf40f (diff) | |
| download | ffmpeg-f99a5ef92e5aba87a2d861822274147c994041d5.tar.gz | |
ac3dsp: add x86-optimized versions of ac3dsp.extract_exponents().
Diffstat (limited to 'libavcodec/x86/ac3dsp_mmx.c')
| -rw-r--r-- | libavcodec/x86/ac3dsp_mmx.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/libavcodec/x86/ac3dsp_mmx.c b/libavcodec/x86/ac3dsp_mmx.c index 2664736bb6..692d240d4c 100644 --- a/libavcodec/x86/ac3dsp_mmx.c +++ b/libavcodec/x86/ac3dsp_mmx.c @@ -44,6 +44,10 @@ extern void ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, unsigned i extern int ff_ac3_compute_mantissa_size_sse2(uint16_t mant_cnt[6][16]); +extern void ff_ac3_extract_exponents_3dnow(uint8_t *exp, int32_t *coef, int nb_coefs); +extern void ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs); +extern void ff_ac3_extract_exponents_ssse3(uint8_t *exp, int32_t *coef, int nb_coefs); + av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact) { int mm_flags = av_get_cpu_flags(); @@ -56,6 +60,7 @@ av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact) c->ac3_rshift_int32 = ff_ac3_rshift_int32_mmx; } if (mm_flags & AV_CPU_FLAG_3DNOW && HAVE_AMD3DNOW) { + c->extract_exponents = ff_ac3_extract_exponents_3dnow; if (!bit_exact) { c->float_to_fixed24 = ff_float_to_fixed24_3dnow; } @@ -72,6 +77,7 @@ av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact) c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_sse2; c->float_to_fixed24 = ff_float_to_fixed24_sse2; c->compute_mantissa_size = ff_ac3_compute_mantissa_size_sse2; + c->extract_exponents = ff_ac3_extract_exponents_sse2; if (!(mm_flags & AV_CPU_FLAG_SSE2SLOW)) { c->ac3_lshift_int16 = ff_ac3_lshift_int16_sse2; c->ac3_rshift_int32 = ff_ac3_rshift_int32_sse2; @@ -79,6 +85,9 @@ av_cold void ff_ac3dsp_init_x86(AC3DSPContext *c, int bit_exact) } if (mm_flags & AV_CPU_FLAG_SSSE3 && HAVE_SSSE3) { c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_ssse3; + if (!(mm_flags & AV_CPU_FLAG_ATOM)) { + c->extract_exponents = ff_ac3_extract_exponents_ssse3; + } } #endif } |