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| author | Christophe Gisquet <christophe.gisquet@gmail.com> | 2012-02-24 22:11:19 +0100 |
|---|---|---|
| committer | Diego Biurrun <diego@biurrun.de> | 2012-12-07 11:04:26 +0100 |
| commit | 2aef3d66c9cdf9d9ad3ecec2fb0c6b3020e9d3b0 (patch) | |
| tree | 4e40bc1d24002be20fa1b0592a5b66e4cb9657d2 /libavcodec/x86/sbrdsp_init.c | |
| parent | 9a16359c38888af6beab7e688fc55eaa60c835ec (diff) | |
| download | ffmpeg-2aef3d66c9cdf9d9ad3ecec2fb0c6b3020e9d3b0.tar.gz | |
SBR DSP x86: implement SSE sbr_hf_gen
Start and end index are multiple of 2, therefore guaranteeing aligned access.
Also, this allows to generate 4 floats per loop, keeping the alignment all
along.
Timing:
- 32 bits: 326c -> 172c
- 64 bits: 323c -> 156c
Signed-off-by: Diego Biurrun <diego@biurrun.de>
Diffstat (limited to 'libavcodec/x86/sbrdsp_init.c')
| -rw-r--r-- | libavcodec/x86/sbrdsp_init.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavcodec/x86/sbrdsp_init.c b/libavcodec/x86/sbrdsp_init.c index d272896704..51c4bd4a16 100644 --- a/libavcodec/x86/sbrdsp_init.c +++ b/libavcodec/x86/sbrdsp_init.c @@ -27,6 +27,9 @@ float ff_sbr_sum_square_sse(float (*x)[2], int n); void ff_sbr_hf_g_filt_sse(float (*Y)[2], const float (*X_high)[40][2], const float *g_filt, int m_max, intptr_t ixh); +void ff_sbr_hf_gen_sse(float (*X_high)[2], const float (*X_low)[2], + const float alpha0[2], const float alpha1[2], + float bw, int start, int end); void ff_sbrdsp_init_x86(SBRDSPContext *s) { @@ -35,5 +38,6 @@ void ff_sbrdsp_init_x86(SBRDSPContext *s) if (EXTERNAL_SSE(mm_flags)) { s->sum_square = ff_sbr_sum_square_sse; s->hf_g_filt = ff_sbr_hf_g_filt_sse; + s->hf_gen = ff_sbr_hf_gen_sse; } } |