Imported Debian version 2.5.3~trusty1
[deb_ffmpeg.git] / ffmpeg / libavcodec / lossless_audiodsp.c
CommitLineData
2ba45a60
DM
1/*
2 * Monkey's Audio lossless audio decoder
3 * Copyright (c) 2007 Benjamin Zores <ben@geexbox.org>
4 * based upon libdemac from Dave Chapman.
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#include "avcodec.h"
24#include "lossless_audiodsp.h"
25
26static int32_t scalarproduct_and_madd_int16_c(int16_t *v1, const int16_t *v2,
27 const int16_t *v3,
28 int order, int mul)
29{
30 int res = 0;
31
32 while (order--) {
33 res += *v1 * *v2++;
34 *v1++ += mul * *v3++;
35 }
36 return res;
37}
38
39av_cold void ff_llauddsp_init(LLAudDSPContext *c)
40{
41 c->scalarproduct_and_madd_int16 = scalarproduct_and_madd_int16_c;
42
43 if (ARCH_ARM)
44 ff_llauddsp_init_arm(c);
45 if (ARCH_PPC)
46 ff_llauddsp_init_ppc(c);
47 if (ARCH_X86)
48 ff_llauddsp_init_x86(c);
49}