fmtconvert_init_arm.c
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1 /*
2  * ARM optimized Format Conversion Utils
3  *
4  * This file is part of Libav.
5  *
6  * Libav 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  * Libav 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 Libav; 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/arm/cpu.h"
24 #include "libavcodec/avcodec.h"
25 #include "libavcodec/fmtconvert.h"
26 
27 void ff_int32_to_float_fmul_scalar_neon(float *dst, const int *src,
28  float mul, int len);
29 
30 void ff_float_to_int16_neon(int16_t *dst, const float *src, long len);
31 void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int);
32 
33 void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len);
34 
36 {
38 
39  if (have_vfp(cpu_flags) && have_armv6(cpu_flags)) {
41  }
42 
43  if (have_neon(cpu_flags)) {
45 
46  if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
49  }
50  }
51 }
#define have_armv6(flags)
Definition: cpu.h:26
void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int)
void(* float_to_int16_interleave)(int16_t *dst, const float **src, long len, int channels)
Convert multiple arrays of float to an interleaved array of int16_t.
Definition: fmtconvert.h:69
void(* int32_to_float_fmul_scalar)(float *dst, const int *src, float mul, int len)
Convert an array of int32_t to float and multiply by a float value.
Definition: fmtconvert.h:38
#define have_vfp(flags)
Definition: cpu.h:28
int flags
CODEC_FLAG_*.
Definition: avcodec.h:1434
void ff_fmt_convert_init_arm(FmtConvertContext *c, AVCodecContext *avctx)
void ff_int32_to_float_fmul_scalar_neon(float *dst, const int *src, float mul, int len)
void(* float_to_int16)(int16_t *dst, const float *src, long len)
Convert an array of float to an array of int16_t.
Definition: fmtconvert.h:53
static int cpu_flags
Definition: dct-test.c:76
external API header
main external API structure.
Definition: avcodec.h:1339
void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len)
int av_get_cpu_flags(void)
Return the flags which specify extensions supported by the CPU.
Definition: cpu.c:25
#define have_neon(flags)
Definition: cpu.h:30
int len
void ff_float_to_int16_neon(int16_t *dst, const float *src, long len)