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authorMans Rullgard <mans@mansr.com>2011-03-29 02:30:13 +0100
committerMans Rullgard <mans@mansr.com>2011-03-29 19:40:13 +0100
commitd782bca4156cfd91cd3d9a7d4eda6ff580915170 (patch)
tree2087bb0434b6b12be65d2660fafb4100f2c187bc /libavcodec/arm/ac3dsp_neon.S
parent6d9f52b2cd760eacf6cc6b7d694b0b00d991f1de (diff)
ac3enc: NEON optimised float_to_fixed24
Signed-off-by: Mans Rullgard <mans@mansr.com>
Diffstat (limited to 'libavcodec/arm/ac3dsp_neon.S')
-rw-r--r--libavcodec/arm/ac3dsp_neon.S14
1 files changed, 14 insertions, 0 deletions
diff --git a/libavcodec/arm/ac3dsp_neon.S b/libavcodec/arm/ac3dsp_neon.S
index 43d4e612af..d33d978d7c 100644
--- a/libavcodec/arm/ac3dsp_neon.S
+++ b/libavcodec/arm/ac3dsp_neon.S
@@ -78,3 +78,17 @@ function ff_ac3_rshift_int32_neon, export=1
bgt 1b
bx lr
endfunc
+
+function ff_float_to_fixed24_neon, export=1
+1: vld1.32 {q0-q1}, [r1,:128]!
+ vcvt.s32.f32 q0, q0, #24
+ vld1.32 {q2-q3}, [r1,:128]!
+ vcvt.s32.f32 q1, q1, #24
+ vcvt.s32.f32 q2, q2, #24
+ vst1.32 {q0-q1}, [r0,:128]!
+ vcvt.s32.f32 q3, q3, #24
+ vst1.32 {q2-q3}, [r0,:128]!
+ subs r2, r2, #16
+ bgt 1b
+ bx lr
+endfunc