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_int32_to_float_fmul_scalar_vfp(float *dst, const int32_t *src,
31  float mul, int len);
33  const int32_t *src, const float *mul,
34  int len);
35 
36 void ff_float_to_int16_neon(int16_t *dst, const float *src, long len);
37 void ff_float_to_int16_interleave_neon(int16_t *, const float **, long, int);
38 
39 void ff_float_to_int16_vfp(int16_t *dst, const float *src, long len);
40 
42 {
44 
45  if (have_vfp(cpu_flags) && have_armv6(cpu_flags)) {
46  if (!have_vfpv3(cpu_flags)) {
47  // These functions don't use anything armv6 specific in themselves,
48  // but ff_float_to_int16_vfp which is in the same assembly source
49  // file does, thus the whole file requires armv6 to be built.
52  }
53 
55  }
56 
57  if (have_neon(cpu_flags)) {
59 
60  if (!(avctx->flags & CODEC_FLAG_BITEXACT)) {
63  }
64  }
65 }