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flacdsp.h
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1 /*
2  * This file is part of FFmpeg.
3  *
4  * FFmpeg is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * FFmpeg is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with FFmpeg; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
17  */
18 
19 #ifndef AVCODEC_FLACDSP_H
20 #define AVCODEC_FLACDSP_H
21 
22 #include <stdint.h>
23 #include "libavutil/samplefmt.h"
24 
25 typedef struct FLACDSPContext {
26  void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels,
27  int len, int shift);
28  void (*lpc)(int32_t *samples, const int coeffs[32], int order,
29  int qlevel, int len);
30  void (*lpc_encode)(int32_t *res, const int32_t *smp, int len, int order,
31  const int32_t coefs[32], int shift);
33 
34 void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
35 void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
36 void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
37 
38 #endif /* AVCODEC_FLACDSP_H */