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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 "libavutil/attributes.h" | ||
22 | #include "libavutil/common.h" | ||
23 | #include "audiodsp.h" | ||
24 | |||
25 | 699840 | static inline float clipf_c_one(float a, uint32_t mini, | |
26 | uint32_t maxi, uint32_t maxisign) | ||
27 | { | ||
28 | 699840 | uint32_t ai = av_float2int(a); | |
29 | |||
30 |
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699840 | if (ai > mini) |
31 | 1353 | return av_int2float(mini); | |
32 |
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698487 | else if ((ai ^ (1U << 31)) > maxisign) |
33 | 1320 | return av_int2float(maxi); | |
34 | else | ||
35 | 697167 | return a; | |
36 | } | ||
37 | |||
38 | 3755 | static void vector_clipf_c_opposite_sign(float *dst, const float *src, | |
39 | float min, float max, int len) | ||
40 | { | ||
41 | int i; | ||
42 | 3755 | uint32_t mini = av_float2int(min); | |
43 | 3755 | uint32_t maxi = av_float2int(max); | |
44 | 3755 | uint32_t maxisign = maxi ^ (1U << 31); | |
45 | |||
46 |
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91235 | for (i = 0; i < len; i += 8) { |
47 | 87480 | dst[i + 0] = clipf_c_one(src[i + 0], mini, maxi, maxisign); | |
48 | 87480 | dst[i + 1] = clipf_c_one(src[i + 1], mini, maxi, maxisign); | |
49 | 87480 | dst[i + 2] = clipf_c_one(src[i + 2], mini, maxi, maxisign); | |
50 | 87480 | dst[i + 3] = clipf_c_one(src[i + 3], mini, maxi, maxisign); | |
51 | 87480 | dst[i + 4] = clipf_c_one(src[i + 4], mini, maxi, maxisign); | |
52 | 87480 | dst[i + 5] = clipf_c_one(src[i + 5], mini, maxi, maxisign); | |
53 | 87480 | dst[i + 6] = clipf_c_one(src[i + 6], mini, maxi, maxisign); | |
54 | 87480 | dst[i + 7] = clipf_c_one(src[i + 7], mini, maxi, maxisign); | |
55 | } | ||
56 | 3755 | } | |
57 | |||
58 | 3755 | static void vector_clipf_c(float *dst, const float *src, int len, | |
59 | float min, float max) | ||
60 | { | ||
61 | int i; | ||
62 | |||
63 |
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3755 | if (min < 0 && max > 0) { |
64 | 3755 | vector_clipf_c_opposite_sign(dst, src, min, max, len); | |
65 | } else { | ||
66 | ✗ | for (i = 0; i < len; i += 8) { | |
67 | ✗ | dst[i] = av_clipf(src[i], min, max); | |
68 | ✗ | dst[i + 1] = av_clipf(src[i + 1], min, max); | |
69 | ✗ | dst[i + 2] = av_clipf(src[i + 2], min, max); | |
70 | ✗ | dst[i + 3] = av_clipf(src[i + 3], min, max); | |
71 | ✗ | dst[i + 4] = av_clipf(src[i + 4], min, max); | |
72 | ✗ | dst[i + 5] = av_clipf(src[i + 5], min, max); | |
73 | ✗ | dst[i + 6] = av_clipf(src[i + 6], min, max); | |
74 | ✗ | dst[i + 7] = av_clipf(src[i + 7], min, max); | |
75 | } | ||
76 | } | ||
77 | 3755 | } | |
78 | |||
79 | 861032 | static int32_t scalarproduct_int16_c(const int16_t *v1, const int16_t *v2, | |
80 | int order) | ||
81 | { | ||
82 | 861032 | unsigned res = 0; | |
83 | |||
84 |
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47787392 | while (order--) |
85 | 46926360 | res += *v1++ **v2++; | |
86 | |||
87 | 861032 | return res; | |
88 | } | ||
89 | |||
90 | 1041 | static void vector_clip_int32_c(int32_t *dst, const int32_t *src, int32_t min, | |
91 | int32_t max, unsigned int len) | ||
92 | { | ||
93 | do { | ||
94 | 9284 | *dst++ = av_clip(*src++, min, max); | |
95 | 9284 | *dst++ = av_clip(*src++, min, max); | |
96 | 9284 | *dst++ = av_clip(*src++, min, max); | |
97 | 9284 | *dst++ = av_clip(*src++, min, max); | |
98 | 9284 | *dst++ = av_clip(*src++, min, max); | |
99 | 9284 | *dst++ = av_clip(*src++, min, max); | |
100 | 9284 | *dst++ = av_clip(*src++, min, max); | |
101 | 9284 | *dst++ = av_clip(*src++, min, max); | |
102 | 9284 | len -= 8; | |
103 |
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9284 | } while (len > 0); |
104 | 1041 | } | |
105 | |||
106 | 38 | av_cold void ff_audiodsp_init(AudioDSPContext *c) | |
107 | { | ||
108 | 38 | c->scalarproduct_int16 = scalarproduct_int16_c; | |
109 | 38 | c->vector_clip_int32 = vector_clip_int32_c; | |
110 | 38 | c->vector_clipf = vector_clipf_c; | |
111 | |||
112 | #if ARCH_ARM | ||
113 | ff_audiodsp_init_arm(c); | ||
114 | #elif ARCH_PPC | ||
115 | ff_audiodsp_init_ppc(c); | ||
116 | #elif ARCH_RISCV | ||
117 | ff_audiodsp_init_riscv(c); | ||
118 | #elif ARCH_X86 | ||
119 | 38 | ff_audiodsp_init_x86(c); | |
120 | #endif | ||
121 | 38 | } | |
122 |