---
libavcodec/arm/ac3dsp_init_arm.c | 4 ++++
libavcodec/arm/ac3dsp_neon.S | 21 +++++++++++++++++++++
2 files changed, 25 insertions(+), 0 deletions(-)
diff --git a/libavcodec/arm/ac3dsp_init_arm.c b/libavcodec/arm/ac3dsp_init_arm.c
index a0fc977..6874546 100644
--- a/libavcodec/arm/ac3dsp_init_arm.c
+++ b/libavcodec/arm/ac3dsp_init_arm.c
@@ -25,11 +25,15 @@
void ff_ac3_exponent_min_neon(uint8_t *exp, int num_reuse_blocks, int
nb_coefs);
int ff_ac3_max_msb_abs_int16_neon(const int16_t *src, int len);
+void ff_ac3_lshift_int16_neon(int16_t *src, unsigned len, unsigned shift);
+void ff_ac3_rshift_int32_neon(int32_t *src, unsigned len, unsigned shift);
av_cold void ff_ac3dsp_init_arm(AC3DSPContext *c, int bit_exact)
{
if (HAVE_NEON) {
c->ac3_exponent_min = ff_ac3_exponent_min_neon;
c->ac3_max_msb_abs_int16 = ff_ac3_max_msb_abs_int16_neon;
+ c->ac3_lshift_int16 = ff_ac3_lshift_int16_neon;
+ c->ac3_rshift_int32 = ff_ac3_rshift_int32_neon;
}
}
diff --git a/libavcodec/arm/ac3dsp_neon.S b/libavcodec/arm/ac3dsp_neon.S
index e69a3c2..43d4e61 100644
--- a/libavcodec/arm/ac3dsp_neon.S
+++ b/libavcodec/arm/ac3dsp_neon.S
@@ -57,3 +57,24 @@ function ff_ac3_exponent_min_neon, export=1
bgt 1b
pop {pc}
endfunc
+
+function ff_ac3_lshift_int16_neon, export=1
+ vdup.16 q0, r2
+1: vld1.16 {q1}, [r0,:128]
+ vshl.s16 q1, q1, q0
+ vst1.16 {q1}, [r0,:128]!
+ subs r1, r1, #8
+ bgt 1b
+ bx lr
+endfunc
+
+function ff_ac3_rshift_int32_neon, export=1
+ rsb r2, r2, #0
+ vdup.32 q0, r2
+1: vld1.32 {q1}, [r0,:128]
+ vshl.s32 q1, q1, q0
+ vst1.32 {q1}, [r0,:128]!
+ subs r1, r1, #4
+ bgt 1b
+ bx lr
+endfunc
--
1.7.4.1
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