>From 253 to 185c.
---
libavcodec/x86/sbrdsp.asm | 23 +++++++++++++++++++++++
libavcodec/x86/sbrdsp_init.c | 2 ++
2 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/libavcodec/x86/sbrdsp.asm b/libavcodec/x86/sbrdsp.asm
index 2b90100..b9f0709 100644
--- a/libavcodec/x86/sbrdsp.asm
+++ b/libavcodec/x86/sbrdsp.asm
@@ -224,3 +224,26 @@ cglobal sbr_qmf_post_shuffle, 2,3,3,W,z
cmp zq, r2q
jl .loop
REP_RET
+
+cglobal sbr_qmf_pre_shuffle, 1,4,4,z
+ movh m3, [zq]
+ lea r3q, [zq + 64*4]
+ lea r2q, [zq + (64-3)*4]
+ add zq, 4
+.loop:
+ movu m0, [r2q]
+ movu m1, [zq ]
+ xorps m0, [ps_neg]
+ shufps m0, m0, 0x1B
+ mova m2, m0
+ unpcklps m0, m1
+ unpckhps m2, m1
+ mova [r3q + 0], m0
+ mova [r3q + 16], m2
+ add r3q, 32
+ sub r2q, 16
+ add zq, 16
+ cmp zq, r2q
+ jl .loop
+ movh [r3q-256], m3
+ REP_RET
diff --git a/libavcodec/x86/sbrdsp_init.c b/libavcodec/x86/sbrdsp_init.c
index 3f6dd97..5babe62 100644
--- a/libavcodec/x86/sbrdsp_init.c
+++ b/libavcodec/x86/sbrdsp_init.c
@@ -32,6 +32,7 @@ void ff_sbr_hf_gen_sse(float (*X_high)[2], const float
(*X_low)[2],
float bw, int start, int end);
void ff_sbr_sum64x5_sse(float *z);
void ff_sbr_qmf_post_shuffle_sse(float W[32][2], const float *z);
+void ff_sbr_qmf_pre_shuffle_sse(float *z);
void ff_sbrdsp_init_x86(SBRDSPContext *s)
{
@@ -43,5 +44,6 @@ void ff_sbrdsp_init_x86(SBRDSPContext *s)
s->hf_gen = ff_sbr_hf_gen_sse;
s->sum64x5 = ff_sbr_sum64x5_sse;
s->qmf_post_shuffle = ff_sbr_qmf_post_shuffle_sse;
+ s->qmf_pre_shuffle = ff_sbr_qmf_pre_shuffle_sse;
}
}
--
1.7.7.msysgit.0
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