1 |
|
|
/* |
2 |
|
|
* Format Conversion Utils |
3 |
|
|
* Copyright (c) 2000, 2001 Fabrice Bellard |
4 |
|
|
* Copyright (c) 2002-2004 Michael Niedermayer <michaelni@gmx.at> |
5 |
|
|
* |
6 |
|
|
* This file is part of FFmpeg. |
7 |
|
|
* |
8 |
|
|
* FFmpeg is free software; you can redistribute it and/or |
9 |
|
|
* modify it under the terms of the GNU Lesser General Public |
10 |
|
|
* License as published by the Free Software Foundation; either |
11 |
|
|
* version 2.1 of the License, or (at your option) any later version. |
12 |
|
|
* |
13 |
|
|
* FFmpeg is distributed in the hope that it will be useful, |
14 |
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 |
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
16 |
|
|
* Lesser General Public License for more details. |
17 |
|
|
* |
18 |
|
|
* You should have received a copy of the GNU Lesser General Public |
19 |
|
|
* License along with FFmpeg; if not, write to the Free Software |
20 |
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
21 |
|
|
*/ |
22 |
|
|
|
23 |
|
|
#include "avcodec.h" |
24 |
|
|
#include "fmtconvert.h" |
25 |
|
|
#include "libavutil/common.h" |
26 |
|
|
|
27 |
|
46220 |
static void int32_to_float_fmul_scalar_c(float *dst, const int32_t *src, |
28 |
|
|
float mul, int len) |
29 |
|
|
{ |
30 |
|
|
int i; |
31 |
✓✓ |
11307468 |
for(i=0; i<len; i++) |
32 |
|
11261248 |
dst[i] = src[i] * mul; |
33 |
|
46220 |
} |
34 |
|
|
|
35 |
|
|
static void int32_to_float_c(float *dst, const int32_t *src, intptr_t len) |
36 |
|
|
{ |
37 |
|
|
int i; |
38 |
|
|
|
39 |
|
|
for (i = 0; i < len; i++) |
40 |
|
|
dst[i] = (float)src[i]; |
41 |
|
|
} |
42 |
|
|
|
43 |
|
132 |
static void int32_to_float_fmul_array8_c(FmtConvertContext *c, float *dst, |
44 |
|
|
const int32_t *src, const float *mul, |
45 |
|
|
int len) |
46 |
|
|
{ |
47 |
|
|
int i; |
48 |
✓✓ |
5760 |
for (i = 0; i < len; i += 8) |
49 |
|
5628 |
c->int32_to_float_fmul_scalar(&dst[i], &src[i], *mul++, 8); |
50 |
|
132 |
} |
51 |
|
|
|
52 |
|
64 |
av_cold void ff_fmt_convert_init(FmtConvertContext *c, AVCodecContext *avctx) |
53 |
|
|
{ |
54 |
|
64 |
c->int32_to_float = int32_to_float_c; |
55 |
|
64 |
c->int32_to_float_fmul_scalar = int32_to_float_fmul_scalar_c; |
56 |
|
64 |
c->int32_to_float_fmul_array8 = int32_to_float_fmul_array8_c; |
57 |
|
|
|
58 |
|
|
if (ARCH_AARCH64) |
59 |
|
|
ff_fmt_convert_init_aarch64(c, avctx); |
60 |
|
|
if (ARCH_ARM) |
61 |
|
|
ff_fmt_convert_init_arm(c, avctx); |
62 |
|
|
if (ARCH_PPC) |
63 |
|
|
ff_fmt_convert_init_ppc(c, avctx); |
64 |
|
|
if (ARCH_X86) |
65 |
|
64 |
ff_fmt_convert_init_x86(c, avctx); |
66 |
|
|
if (HAVE_MIPSFPU) |
67 |
|
|
ff_fmt_convert_init_mips(c); |
68 |
|
64 |
} |