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
25 #include "config.h"
26
27 #define SAMPLE_SIZE 16
28 #define PLANAR 0
30
31 #undef PLANAR
32 #define PLANAR 1
34
35 #undef SAMPLE_SIZE
36 #undef PLANAR
37 #define SAMPLE_SIZE 32
38 #define PLANAR 0
40
41 #undef PLANAR
44
46 int pred_order,
int qlevel,
int len)
47 {
49
50 for (
i = pred_order;
i <
len - 1;
i += 2, decoded += 2) {
54 for (j = 1; j < pred_order; j++) {
59 }
61 d = decoded[j] += (
SUINT)(
s0 >> qlevel);
63 decoded[j + 1] += (
SUINT)(
s1 >> qlevel);
64 }
66 int sum = 0;
67 for (j = 0; j < pred_order; j++)
68 sum += coeffs[j] * (
SUINT)decoded[j];
69 decoded[j] = decoded[j] + (unsigned)(sum >> qlevel);
70 }
71 }
72
74 int pred_order,
int qlevel,
int len)
75 {
77
78 for (
i = pred_order;
i <
len;
i++, decoded++) {
79 int64_t sum = 0;
80 for (j = 0; j < pred_order; j++)
81 sum += (int64_t)coeffs[j] * decoded[j];
82 decoded[j] += sum >> qlevel;
83 }
84
85 }
86
88 {
91
92 switch (fmt) {
94 c->decorrelate[0] = flac_decorrelate_indep_c_32;
95 c->decorrelate[1] = flac_decorrelate_ls_c_32;
96 c->decorrelate[2] = flac_decorrelate_rs_c_32;
97 c->decorrelate[3] = flac_decorrelate_ms_c_32;
98 break;
99
101 c->decorrelate[0] = flac_decorrelate_indep_c_32p;
102 c->decorrelate[1] = flac_decorrelate_ls_c_32p;
103 c->decorrelate[2] = flac_decorrelate_rs_c_32p;
104 c->decorrelate[3] = flac_decorrelate_ms_c_32p;
105 break;
106
108 c->decorrelate[0] = flac_decorrelate_indep_c_16;
109 c->decorrelate[1] = flac_decorrelate_ls_c_16;
110 c->decorrelate[2] = flac_decorrelate_rs_c_16;
111 c->decorrelate[3] = flac_decorrelate_ms_c_16;
112 break;
113
115 c->decorrelate[0] = flac_decorrelate_indep_c_16p;
116 c->decorrelate[1] = flac_decorrelate_ls_c_16p;
117 c->decorrelate[2] = flac_decorrelate_rs_c_16p;
118 c->decorrelate[3] = flac_decorrelate_ms_c_16p;
119 break;
120 }
121
122 #if ARCH_ARM
124 #elif ARCH_X86
126 #endif
127 }