FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/audiodsp.c
Date: 2024-03-29 01:21:52
Exec Total Coverage
Lines: 48 57 84.2%
Functions: 6 6 100.0%
Branches: 12 16 75.0%

Line Branch Exec Source
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