FFmpeg
float_dsp_init.c
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1 /*
2  * ARM NEON optimised Float DSP functions
3  * Copyright (c) 2008 Mans Rullgard <mans@mansr.com>
4  *
5  * This file is part of FFmpeg.
6  *
7  * FFmpeg is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * FFmpeg is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with FFmpeg; if not, write to the Free Software
19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20  */
21 
22 #include <stdint.h>
23 
24 #include "libavutil/attributes.h"
25 #include "libavutil/cpu.h"
26 #include "libavutil/float_dsp.h"
27 #include "cpu.h"
28 
29 void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1,
30  int len);
31 
32 void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul,
33  int len);
34 
35 void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul,
36  int len);
37 
38 void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul,
39  int len);
40 
41 void ff_vector_fmul_window_neon(float *dst, const float *src0,
42  const float *src1, const float *win, int len);
43 
44 void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1,
45  const float *src2, int len);
46 
47 void ff_vector_fmul_reverse_neon(float *dst, const float *src0,
48  const float *src1, int len);
49 
50 void ff_butterflies_float_neon(float *v1, float *v2, int len);
51 
52 float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len);
53 
55 {
57 
58  if (have_neon(cpu_flags)) {
68  }
69 }
float(* scalarproduct_float)(const float *v1, const float *v2, int len)
Calculate the scalar product of two vectors of floats.
Definition: float_dsp.h:175
static float win(SuperEqualizerContext *s, float n, int N)
void ff_vector_fmul_scalar_neon(float *dst, const float *src, float mul, int len)
static atomic_int cpu_flags
Definition: cpu.c:50
#define src
Definition: vp8dsp.c:254
void ff_vector_fmul_add_neon(float *dst, const float *src0, const float *src1, const float *src2, int len)
Macro definitions for various function/variable attributes.
void(* vector_fmac_scalar)(float *dst, const float *src, float mul, int len)
Multiply a vector of floats by a scalar float and add to destination vector.
Definition: float_dsp.h:54
av_cold void ff_float_dsp_init_aarch64(AVFloatDSPContext *fdsp)
#define av_cold
Definition: attributes.h:82
void(* vector_fmul)(float *dst, const float *src0, const float *src1, int len)
Calculate the entry wise product of two vectors of floats and store the result in a vector of floats...
Definition: float_dsp.h:38
float ff_scalarproduct_float_neon(const float *v1, const float *v2, int len)
void(* vector_fmul_window)(float *dst, const float *src0, const float *src1, const float *win, int len)
Overlap/add with window function.
Definition: float_dsp.h:119
void(* vector_dmul_scalar)(double *dst, const double *src, double mul, int len)
Multiply a vector of double by a scalar double.
Definition: float_dsp.h:100
void ff_vector_fmul_window_neon(float *dst, const float *src0, const float *src1, const float *win, int len)
#define have_neon(flags)
Definition: cpu.h:26
void ff_vector_fmul_neon(float *dst, const float *src0, const float *src1, int len)
void ff_vector_fmul_reverse_neon(float *dst, const float *src0, const float *src1, int len)
#define src1
Definition: h264pred.c:139
void ff_vector_fmac_scalar_neon(float *dst, const float *src, float mul, int len)
void ff_vector_dmul_scalar_neon(double *dst, const double *src, double mul, int len)
void(* butterflies_float)(float *av_restrict v1, float *av_restrict v2, int len)
Calculate the sum and difference of two vectors of floats.
Definition: float_dsp.h:164
void(* vector_fmul_scalar)(float *dst, const float *src, float mul, int len)
Multiply a vector of floats by a scalar float.
Definition: float_dsp.h:85
#define src0
Definition: h264pred.c:138
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:93
void ff_butterflies_float_neon(float *v1, float *v2, int len)
void(* vector_fmul_add)(float *dst, const float *src0, const float *src1, const float *src2, int len)
Calculate the entry wise product of two vectors of floats, add a third vector of floats and store the...
Definition: float_dsp.h:137
int len
void(* vector_fmul_reverse)(float *dst, const float *src0, const float *src1, int len)
Calculate the entry wise product of two vectors of floats, and store the result in a vector of floats...
Definition: float_dsp.h:154