flacdec: split off channel decorrelation as flacdsp
[libav.git] / libavcodec / flacdsp.c
... / ...
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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"
24
25#define SAMPLE_SIZE 16
26#include "flacdsp_template.c"
27
28#undef SAMPLE_SIZE
29#define SAMPLE_SIZE 32
30#include "flacdsp_template.c"
31
32av_cold void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt)
33{
34 switch (fmt) {
35 case AV_SAMPLE_FMT_S32:
36 c->decorrelate[0] = flac_decorrelate_indep_c_32;
37 c->decorrelate[1] = flac_decorrelate_ls_c_32;
38 c->decorrelate[2] = flac_decorrelate_rs_c_32;
39 c->decorrelate[3] = flac_decorrelate_ms_c_32;
40 break;
41
42 case AV_SAMPLE_FMT_S16:
43 c->decorrelate[0] = flac_decorrelate_indep_c_16;
44 c->decorrelate[1] = flac_decorrelate_ls_c_16;
45 c->decorrelate[2] = flac_decorrelate_rs_c_16;
46 c->decorrelate[3] = flac_decorrelate_ms_c_16;
47 break;
48 }
49}