FFmpeg coverage


Directory: ../../../ffmpeg/
File: src/libavcodec/flacdsp.c
Date: 2021-09-22 05:58:22
Exec Total Coverage
Lines: 47 59 79.7%
Branches: 14 17 82.4%

Line Branch Exec Source
1 /*
2 * Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg 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 * FFmpeg 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 FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include "libavutil/attributes.h"
22 #include "libavutil/samplefmt.h"
23 #include "flacdsp.h"
24 #include "config.h"
25
26 #define SAMPLE_SIZE 16
27 #define PLANAR 0
28 #include "flacdsp_template.c"
29 #include "flacdsp_lpc_template.c"
30
31 #undef PLANAR
32 #define PLANAR 1
33 #include "flacdsp_template.c"
34
35 #undef SAMPLE_SIZE
36 #undef PLANAR
37 #define SAMPLE_SIZE 32
38 #define PLANAR 0
39 #include "flacdsp_template.c"
40 #include "flacdsp_lpc_template.c"
41
42 #undef PLANAR
43 #define PLANAR 1
44 #include "flacdsp_template.c"
45
46 6171 static void flac_lpc_16_c(int32_t *decoded, const int coeffs[32],
47 int pred_order, int qlevel, int len)
48 {
49 int i, j;
50
51
2/2
✓ Branch 0 taken 18990953 times.
✓ Branch 1 taken 6171 times.
18997124 for (i = pred_order; i < len - 1; i += 2, decoded += 2) {
52 18990953 SUINT c = coeffs[0];
53 18990953 SUINT d = decoded[0];
54 18990953 int s0 = 0, s1 = 0;
55
2/2
✓ Branch 0 taken 14131353 times.
✓ Branch 1 taken 18990953 times.
33122306 for (j = 1; j < pred_order; j++) {
56 14131353 s0 += c*d;
57 14131353 d = decoded[j];
58 14131353 s1 += c*d;
59 14131353 c = coeffs[j];
60 }
61 18990953 s0 += c*d;
62 18990953 d = decoded[j] += (SUINT)(s0 >> qlevel);
63 18990953 s1 += c*d;
64 18990953 decoded[j + 1] += (SUINT)(s1 >> qlevel);
65 }
66
2/2
✓ Branch 0 taken 5728 times.
✓ Branch 1 taken 443 times.
6171 if (i < len) {
67 5728 int sum = 0;
68
2/2
✓ Branch 0 taken 9256 times.
✓ Branch 1 taken 5728 times.
14984 for (j = 0; j < pred_order; j++)
69 9256 sum += coeffs[j] * (SUINT)decoded[j];
70 5728 decoded[j] = decoded[j] + (unsigned)(sum >> qlevel);
71 }
72 6171 }
73
74 2173 static void flac_lpc_32_c(int32_t *decoded, const int coeffs[32],
75 int pred_order, int qlevel, int len)
76 {
77 int i, j;
78
79
2/2
✓ Branch 0 taken 12358395 times.
✓ Branch 1 taken 2173 times.
12360568 for (i = pred_order; i < len; i++, decoded++) {
80 12358395 int64_t sum = 0;
81
2/2
✓ Branch 0 taken 108387338 times.
✓ Branch 1 taken 12358395 times.
120745733 for (j = 0; j < pred_order; j++)
82 108387338 sum += (int64_t)coeffs[j] * decoded[j];
83 12358395 decoded[j] += sum >> qlevel;
84 }
85
86 2173 }
87
88 5979 av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels,
89 int bps)
90 {
91 5979 c->lpc16 = flac_lpc_16_c;
92 5979 c->lpc32 = flac_lpc_32_c;
93 5979 c->lpc16_encode = flac_lpc_encode_c_16;
94 5979 c->lpc32_encode = flac_lpc_encode_c_32;
95
96
2/5
✓ Branch 0 taken 503 times.
✗ Branch 1 not taken.
✓ Branch 2 taken 5476 times.
✗ Branch 3 not taken.
✗ Branch 4 not taken.
5979 switch (fmt) {
97 503 case AV_SAMPLE_FMT_S32:
98 503 c->decorrelate[0] = flac_decorrelate_indep_c_32;
99 503 c->decorrelate[1] = flac_decorrelate_ls_c_32;
100 503 c->decorrelate[2] = flac_decorrelate_rs_c_32;
101 503 c->decorrelate[3] = flac_decorrelate_ms_c_32;
102 503 break;
103
104 case AV_SAMPLE_FMT_S32P:
105 c->decorrelate[0] = flac_decorrelate_indep_c_32p;
106 c->decorrelate[1] = flac_decorrelate_ls_c_32p;
107 c->decorrelate[2] = flac_decorrelate_rs_c_32p;
108 c->decorrelate[3] = flac_decorrelate_ms_c_32p;
109 break;
110
111 5476 case AV_SAMPLE_FMT_S16:
112 5476 c->decorrelate[0] = flac_decorrelate_indep_c_16;
113 5476 c->decorrelate[1] = flac_decorrelate_ls_c_16;
114 5476 c->decorrelate[2] = flac_decorrelate_rs_c_16;
115 5476 c->decorrelate[3] = flac_decorrelate_ms_c_16;
116 5476 break;
117
118 case AV_SAMPLE_FMT_S16P:
119 c->decorrelate[0] = flac_decorrelate_indep_c_16p;
120 c->decorrelate[1] = flac_decorrelate_ls_c_16p;
121 c->decorrelate[2] = flac_decorrelate_rs_c_16p;
122 c->decorrelate[3] = flac_decorrelate_ms_c_16p;
123 break;
124 }
125
126 if (ARCH_ARM)
127 ff_flacdsp_init_arm(c, fmt, channels, bps);
128 if (ARCH_X86)
129 5979 ff_flacdsp_init_x86(c, fmt, channels, bps);
130 5979 }
131