FFmpeg
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
audiodsp_init.c
Go to the documentation of this file.
1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #include <stdint.h>
20 
21 #include "config.h"
22 #include "libavutil/attributes.h"
23 #include "libavutil/cpu.h"
24 #include "libavutil/x86/cpu.h"
25 #include "libavcodec/audiodsp.h"
26 
27 int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2,
28  int order);
29 int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2,
30  int order);
31 
33  int32_t min, int32_t max, unsigned int len);
35  int32_t min, int32_t max, unsigned int len);
37  int32_t min, int32_t max, unsigned int len);
39  int32_t min, int32_t max, unsigned int len);
40 void ff_vector_clipf_sse(float *dst, const float *src,
41  float min, float max, int len);
42 
44 {
45  int cpu_flags = av_get_cpu_flags();
46 
47  if (EXTERNAL_MMX(cpu_flags))
49 
50  if (EXTERNAL_MMXEXT(cpu_flags))
52 
53  if (EXTERNAL_SSE(cpu_flags))
55 
56  if (EXTERNAL_SSE2(cpu_flags)) {
58  if (cpu_flags & AV_CPU_FLAG_ATOM)
60  else
62  }
63 
64  if (EXTERNAL_SSE4(cpu_flags))
66 }
#define EXTERNAL_MMX(flags)
Definition: cpu.h:54
void(* vector_clip_int32)(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len)
Clip each element in an array of int32_t to a given minimum and maximum value.
Definition: audiodsp.h:46
int32_t(* scalarproduct_int16)(const int16_t *v1, const int16_t *v2, int len)
Calculate scalar product of two vectors.
Definition: audiodsp.h:29
void ff_vector_clip_int32_int_sse2(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len)
void ff_vector_clipf_sse(float *dst, const float *src, float min, float max, int len)
void ff_vector_clip_int32_sse2(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len)
#define EXTERNAL_SSE(flags)
Definition: cpu.h:56
Macro definitions for various function/variable attributes.
#define EXTERNAL_SSE4(flags)
Definition: cpu.h:64
#define av_cold
Definition: attributes.h:82
#define AV_CPU_FLAG_ATOM
Atom processor, some SSSE3 instructions are slower.
Definition: cpu.h:42
#define EXTERNAL_SSE2(flags)
Definition: cpu.h:57
void ff_vector_clip_int32_sse4(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len)
av_cold void ff_audiodsp_init_x86(AudioDSPContext *c)
Definition: audiodsp_init.c:43
int32_t
#define src
Definition: vp9dsp.c:530
int32_t ff_scalarproduct_int16_sse2(const int16_t *v1, const int16_t *v2, int order)
void(* vector_clipf)(float *dst, const float *src, float min, float max, int len)
Definition: audiodsp.h:49
void ff_vector_clip_int32_mmx(int32_t *dst, const int32_t *src, int32_t min, int32_t max, unsigned int len)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:76
#define EXTERNAL_MMXEXT(flags)
Definition: cpu.h:55
int32_t ff_scalarproduct_int16_mmxext(const int16_t *v1, const int16_t *v2, int order)
static double c[64]
int len
float min