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fmtconvert_init_arm.c
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1 /*
2  * ARM optimized Format Conversion Utils
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #include <stdint.h>
22 
23 #include "libavutil/attributes.h"
24 #include "libavutil/arm/cpu.h"
25 #include "libavcodec/avcodec.h"
26 #include "libavcodec/fmtconvert.h"
27 
28 void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src,
29  float mul, int len);
30 
31 void ff_int32_to_float_fmul_scalar_vfp(float *dst, const int32_t *src,
32  float mul, int len);
34  const int32_t *src, const float *mul,
35  int len);
36 
38 {
39  int cpu_flags = av_get_cpu_flags();
40 
41  if (have_vfp(cpu_flags)) {
42  if (!have_vfpv3(cpu_flags)) {
45  }
46  }
47 
48  if (have_neon(cpu_flags)) {
50  }
51 }
Macro definitions for various function/variable attributes.
#define av_cold
Definition: attributes.h:74
void(* int32_to_float_fmul_array8)(struct FmtConvertContext *c, float *dst, const int32_t *src, const float *mul, int len)
Convert an array of int32_t to float and multiply by a float value from another array, stepping along the float array once for each 8 integers.
Definition: fmtconvert.h:53
void ff_int32_to_float_fmul_scalar_neon(float *dst, const int32_t *src, float mul, int len)
#define have_vfpv3(flags)
Definition: cpu.h:30
av_cold void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx)
Libavcodec external API header.
#define have_neon(flags)
Definition: cpu.h:27
int32_t
void(* int32_to_float_fmul_scalar)(float *dst, const int32_t *src, float mul, int len)
Convert an array of int32_t to float and multiply by a float value.
Definition: fmtconvert.h:38
AVS_Value src
Definition: avisynth_c.h:482
main external API structure.
Definition: avcodec.h:1252
void ff_int32_to_float_fmul_array8_vfp(FmtConvertContext *c, float *dst, const int32_t *src, const float *mul, int len)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:76
static double c[64]
void ff_int32_to_float_fmul_scalar_vfp(float *dst, const int32_t *src, float mul, int len)
#define have_vfp(flags)
Definition: cpu.h:28
int len