aarch64: Add assembly support for -fsanitize=hwaddress tagged globals.
[libav.git] / libavcodec / flacdsp.c
CommitLineData
4a852834
MR
1/*
2 * Copyright (c) 2012 Mans Rullgard <mans@mansr.com>
3 *
4 * This file is part of Libav.
5 *
6 * Libav 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 * Libav 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 Libav; 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"
7689eea4 24#include "config.h"
4a852834
MR
25
26#define SAMPLE_SIZE 16
784514a4
MR
27#define PLANAR 0
28#include "flacdsp_template.c"
799e2324 29#include "flacdsp_lpc_template.c"
784514a4
MR
30
31#undef PLANAR
32#define PLANAR 1
4a852834
MR
33#include "flacdsp_template.c"
34
35#undef SAMPLE_SIZE
784514a4 36#undef PLANAR
4a852834 37#define SAMPLE_SIZE 32
784514a4
MR
38#define PLANAR 0
39#include "flacdsp_template.c"
799e2324 40#include "flacdsp_lpc_template.c"
784514a4
MR
41
42#undef PLANAR
43#define PLANAR 1
4a852834
MR
44#include "flacdsp_template.c"
45
25accf93
MR
46static 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
bf1cf4d5
MR
51 for (i = pred_order; i < len - 1; i += 2, decoded += 2) {
52 int c = coeffs[0];
53 int d = decoded[0];
25accf93 54 int s0 = 0, s1 = 0;
bf1cf4d5 55 for (j = 1; j < pred_order; j++) {
25accf93 56 s0 += c*d;
bf1cf4d5 57 d = decoded[j];
25accf93 58 s1 += c*d;
bf1cf4d5 59 c = coeffs[j];
25accf93 60 }
25accf93 61 s0 += c*d;
bf1cf4d5 62 d = decoded[j] += s0 >> qlevel;
25accf93 63 s1 += c*d;
bf1cf4d5 64 decoded[j + 1] += s1 >> qlevel;
25accf93
MR
65 }
66 if (i < len) {
67 int sum = 0;
68 for (j = 0; j < pred_order; j++)
bf1cf4d5
MR
69 sum += coeffs[j] * decoded[j];
70 decoded[j] += sum >> qlevel;
25accf93
MR
71 }
72}
73
74static 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
bf1cf4d5 79 for (i = pred_order; i < len; i++, decoded++) {
25accf93
MR
80 int64_t sum = 0;
81 for (j = 0; j < pred_order; j++)
bf1cf4d5
MR
82 sum += (int64_t)coeffs[j] * decoded[j];
83 decoded[j] += sum >> qlevel;
25accf93
MR
84 }
85
86}
87
784514a4
MR
88av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt,
89 int bps)
4a852834 90{
799e2324 91 if (bps > 16) {
784514a4 92 c->lpc = flac_lpc_32_c;
799e2324
JR
93 c->lpc_encode = flac_lpc_encode_c_32;
94 } else {
784514a4 95 c->lpc = flac_lpc_16_c;
799e2324
JR
96 c->lpc_encode = flac_lpc_encode_c_16;
97 }
784514a4 98
4a852834
MR
99 switch (fmt) {
100 case AV_SAMPLE_FMT_S32:
101 c->decorrelate[0] = flac_decorrelate_indep_c_32;
102 c->decorrelate[1] = flac_decorrelate_ls_c_32;
103 c->decorrelate[2] = flac_decorrelate_rs_c_32;
104 c->decorrelate[3] = flac_decorrelate_ms_c_32;
784514a4
MR
105 break;
106
107 case AV_SAMPLE_FMT_S32P:
108 c->decorrelate[0] = flac_decorrelate_indep_c_32p;
109 c->decorrelate[1] = flac_decorrelate_ls_c_32p;
110 c->decorrelate[2] = flac_decorrelate_rs_c_32p;
111 c->decorrelate[3] = flac_decorrelate_ms_c_32p;
4a852834
MR
112 break;
113
114 case AV_SAMPLE_FMT_S16:
115 c->decorrelate[0] = flac_decorrelate_indep_c_16;
116 c->decorrelate[1] = flac_decorrelate_ls_c_16;
117 c->decorrelate[2] = flac_decorrelate_rs_c_16;
118 c->decorrelate[3] = flac_decorrelate_ms_c_16;
784514a4
MR
119 break;
120
121 case AV_SAMPLE_FMT_S16P:
122 c->decorrelate[0] = flac_decorrelate_indep_c_16p;
123 c->decorrelate[1] = flac_decorrelate_ls_c_16p;
124 c->decorrelate[2] = flac_decorrelate_rs_c_16p;
125 c->decorrelate[3] = flac_decorrelate_ms_c_16p;
4a852834
MR
126 break;
127 }
7689eea4
MR
128
129 if (ARCH_ARM)
130 ff_flacdsp_init_arm(c, fmt, bps);
4a852834 131}