FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/sbrdsp_template.c
Date: 2021-09-26 18:22:30
Exec Total Coverage
Lines: 43 43 100.0%
Branches: 4 4 100.0%

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1 /*
2 * AAC Spectral Band Replication decoding functions
3 * Copyright (c) 2008-2009 Robert Swain ( rob opendot cl )
4 * Copyright (c) 2009-2010 Alex Converse <alex.converse@gmail.com>
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 631587 static void sbr_sum64x5_c(INTFLOAT *z)
24 {
25 int k;
26
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41053155 for (k = 0; k < 64; k++) {
27 40421568 INTFLOAT f = z[k] + z[k + 64] + z[k + 128] + z[k + 192] + z[k + 256];
28 40421568 z[k] = f;
29 }
30 631587 }
31
32 548483 static void sbr_qmf_deint_bfly_c(INTFLOAT *v, const INTFLOAT *src0, const INTFLOAT *src1)
33 {
34 int i;
35
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35651395 for (i = 0; i < 64; i++) {
36 #if USE_FIXED
37 12353536 v[ i] = (int)(0x10U + src0[i] - src1[63 - i]) >> 5;
38 12353536 v[127 - i] = (int)(0x10U + src0[i] + src1[63 - i]) >> 5;
39 #else
40 22749376 v[ i] = src0[i] - src1[63 - i];
41 22749376 v[127 - i] = src0[i] + src1[63 - i];
42 #endif
43 }
44 548483 }
45
46 82422 static void sbr_hf_apply_noise_0(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
47 const AAC_FLOAT *q_filt, int noise,
48 int kx, int m_max)
49 {
50 82422 sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)1.0, (INTFLOAT)0.0, m_max);
51 82422 }
52
53 82422 static void sbr_hf_apply_noise_1(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
54 const AAC_FLOAT *q_filt, int noise,
55 int kx, int m_max)
56 {
57 82422 INTFLOAT phi_sign = 1 - 2 * (kx & 1);
58 82422 sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)0.0, phi_sign, m_max);
59 82422 }
60
61 82418 static void sbr_hf_apply_noise_2(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
62 const AAC_FLOAT *q_filt, int noise,
63 int kx, int m_max)
64 {
65 82418 sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)-1.0, (INTFLOAT)0.0, m_max);
66 82418 }
67
68 82418 static void sbr_hf_apply_noise_3(INTFLOAT (*Y)[2], const AAC_FLOAT *s_m,
69 const AAC_FLOAT *q_filt, int noise,
70 int kx, int m_max)
71 {
72 82418 INTFLOAT phi_sign = 1 - 2 * (kx & 1);
73 82418 sbr_hf_apply_noise(Y, s_m, q_filt, noise, (INTFLOAT)0.0, -phi_sign, m_max);
74 82418 }
75
76 365 av_cold void AAC_RENAME(ff_sbrdsp_init)(SBRDSPContext *s)
77 {
78 365 s->sum64x5 = sbr_sum64x5_c;
79 365 s->sum_square = sbr_sum_square_c;
80 365 s->neg_odd_64 = sbr_neg_odd_64_c;
81 365 s->qmf_pre_shuffle = sbr_qmf_pre_shuffle_c;
82 365 s->qmf_post_shuffle = sbr_qmf_post_shuffle_c;
83 365 s->qmf_deint_neg = sbr_qmf_deint_neg_c;
84 365 s->qmf_deint_bfly = sbr_qmf_deint_bfly_c;
85 365 s->autocorrelate = sbr_autocorrelate_c;
86 365 s->hf_gen = sbr_hf_gen_c;
87 365 s->hf_g_filt = sbr_hf_g_filt_c;
88
89 365 s->hf_apply_noise[0] = sbr_hf_apply_noise_0;
90 365 s->hf_apply_noise[1] = sbr_hf_apply_noise_1;
91 365 s->hf_apply_noise[2] = sbr_hf_apply_noise_2;
92 365 s->hf_apply_noise[3] = sbr_hf_apply_noise_3;
93
94 #if !USE_FIXED
95 if (ARCH_ARM)
96 ff_sbrdsp_init_arm(s);
97 if (ARCH_AARCH64)
98 ff_sbrdsp_init_aarch64(s);
99 if (ARCH_X86)
100 334 ff_sbrdsp_init_x86(s);
101 if (ARCH_MIPS)
102 ff_sbrdsp_init_mips(s);
103 #endif /* !USE_FIXED */
104 365 }
105