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authorMichael Niedermayer <michaelni@gmx.at>2012-11-27 13:39:52 +0100
committerMichael Niedermayer <michaelni@gmx.at>2012-11-27 13:39:52 +0100
commit2684d2e3ea8a1a2863ae9842d072341b44b09829 (patch)
tree3d116023d439f92f473480c8f68f6d27f9f62344 /libavutil
parent257196209fe7d27ad22e18bf5757ffcad47dce6b (diff)
parent284ea790d89441fa1e6b2d72d3c1ed6d61972f0b (diff)
downloadffmpeg-2684d2e3ea8a1a2863ae9842d072341b44b09829.tar.gz
Merge commit '284ea790d89441fa1e6b2d72d3c1ed6d61972f0b'
* commit '284ea790d89441fa1e6b2d72d3c1ed6d61972f0b': dsputil: move vector_fmul_scalar() to AVFloatDSPContext in libavutil aacenc: use the correct output buffer aacdec: fix signed overflows in lcg_random() base64: fix signed overflow in shift Conflicts: libavcodec/dsputil.c libavutil/base64.c Merged-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil')
-rw-r--r--libavutil/arm/float_dsp_init_neon.c4
-rw-r--r--libavutil/arm/float_dsp_neon.S38
-rw-r--r--libavutil/float_dsp.c9
-rw-r--r--libavutil/float_dsp.h15
4 files changed, 66 insertions, 0 deletions
diff --git a/libavutil/arm/float_dsp_init_neon.c b/libavutil/arm/float_dsp_init_neon.c
index 3ca0288b31..88eb4b3d2a 100644
--- a/libavutil/arm/float_dsp_init_neon.c
+++ b/libavutil/arm/float_dsp_init_neon.c
@@ -29,8 +29,12 @@ void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1, int l
void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
int len);
+void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
+ int len);
+
void ff_float_dsp_init_neon(AVFloatDSPContext *fdsp)
{
fdsp->vector_fmul = ff_vector_fmul_neon;
fdsp->vector_fmac_scalar = ff_vector_fmac_scalar_neon;
+ fdsp->vector_fmul_scalar = ff_vector_fmul_scalar_neon;
}
diff --git a/libavutil/arm/float_dsp_neon.S b/libavutil/arm/float_dsp_neon.S
index 4aa6f838dd..6d7bd5236e 100644
--- a/libavutil/arm/float_dsp_neon.S
+++ b/libavutil/arm/float_dsp_neon.S
@@ -108,3 +108,41 @@ NOVFP vdup.32 q15, r2
bx lr
.unreq len
endfunc
+
+function ff_vector_fmul_scalar_neon, export=1
+VFP len .req r2
+NOVFP len .req r3
+VFP vdup.32 q8, d0[0]
+NOVFP vdup.32 q8, r2
+ bics r12, len, #15
+ beq 3f
+ vld1.32 {q0},[r1,:128]!
+ vld1.32 {q1},[r1,:128]!
+1: vmul.f32 q0, q0, q8
+ vld1.32 {q2},[r1,:128]!
+ vmul.f32 q1, q1, q8
+ vld1.32 {q3},[r1,:128]!
+ vmul.f32 q2, q2, q8
+ vst1.32 {q0},[r0,:128]!
+ vmul.f32 q3, q3, q8
+ vst1.32 {q1},[r0,:128]!
+ subs r12, r12, #16
+ beq 2f
+ vld1.32 {q0},[r1,:128]!
+ vst1.32 {q2},[r0,:128]!
+ vld1.32 {q1},[r1,:128]!
+ vst1.32 {q3},[r0,:128]!
+ b 1b
+2: vst1.32 {q2},[r0,:128]!
+ vst1.32 {q3},[r0,:128]!
+ ands len, len, #15
+ it eq
+ bxeq lr
+3: vld1.32 {q0},[r1,:128]!
+ vmul.f32 q0, q0, q8
+ vst1.32 {q0},[r0,:128]!
+ subs len, len, #4
+ bgt 3b
+ bx lr
+ .unreq len
+endfunc
diff --git a/libavutil/float_dsp.c b/libavutil/float_dsp.c
index 48f67c6253..7b551871d6 100644
--- a/libavutil/float_dsp.c
+++ b/libavutil/float_dsp.c
@@ -39,10 +39,19 @@ static void vector_fmac_scalar_c(float *dst, const float *src, float mul,
dst[i] += src[i] * mul;
}
+static void vector_fmul_scalar_c(float *dst, const float *src, float mul,
+ int len)
+{
+ int i;
+ for (i = 0; i < len; i++)
+ dst[i] = src[i] * mul;
+}
+
void avpriv_float_dsp_init(AVFloatDSPContext *fdsp, int bit_exact)
{
fdsp->vector_fmul = vector_fmul_c;
fdsp->vector_fmac_scalar = vector_fmac_scalar_c;
+ fdsp->vector_fmul_scalar = vector_fmul_scalar_c;
#if ARCH_ARM
ff_float_dsp_init_arm(fdsp);
diff --git a/libavutil/float_dsp.h b/libavutil/float_dsp.h
index 48a78476c9..b4e89cb722 100644
--- a/libavutil/float_dsp.h
+++ b/libavutil/float_dsp.h
@@ -51,6 +51,21 @@ typedef struct AVFloatDSPContext {
*/
void (*vector_fmac_scalar)(float *dst, const float *src, float mul,
int len);
+
+ /**
+ * Multiply a vector of floats by a scalar float. Source and
+ * destination vectors must overlap exactly or not at all.
+ *
+ * @param dst result vector
+ * constraints: 16-byte aligned
+ * @param src input vector
+ * constraints: 16-byte aligned
+ * @param mul scalar value
+ * @param len length of vector
+ * constraints: multiple of 4
+ */
+ void (*vector_fmul_scalar)(float *dst, const float *src, float mul,
+ int len);
} AVFloatDSPContext;
/**