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lossless_audiodsp.h
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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 #ifndef AVCODEC_LOSSLESS_AUDIODSP_H
24 #define AVCODEC_LOSSLESS_AUDIODSP_H
25 
26 #include <stdint.h>
27 
28 typedef struct LLAudDSPContext {
29  /**
30  * Calculate scalar product of v1 and v2,
31  * and v1[i] += v3[i] * mul
32  * @param len length of vectors, should be multiple of 16,
33  * or padd v3 and v1 or v2 with zeros.
34  */
35  int32_t (*scalarproduct_and_madd_int16)(int16_t *v1 /* align 16 */,
36  const int16_t *v2,
37  const int16_t *v3,
38  int len, int mul);
39 
40  int32_t (*scalarproduct_and_madd_int32)(int16_t *v1 /* align 16 */,
41  const int32_t *v2,
42  const int16_t *v3,
43  int len, int mul);
45 
50 
51 #endif /* AVCODEC_LOSSLESS_AUDIODSP_H */
void ff_llauddsp_init(LLAudDSPContext *c)
void ff_llauddsp_init_arm(LLAudDSPContext *c)
int32_t
int32_t(* scalarproduct_and_madd_int32)(int16_t *v1, const int32_t *v2, const int16_t *v3, int len, int mul)
int32_t(* scalarproduct_and_madd_int16)(int16_t *v1, const int16_t *v2, const int16_t *v3, int len, int mul)
Calculate scalar product of v1 and v2, and v1[i] += v3[i] * mul.
static double c[64]
void ff_llauddsp_init_ppc(LLAudDSPContext *c)
int len
void ff_llauddsp_init_x86(LLAudDSPContext *c)