flacdsp.h 1.8 KB
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/*
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 * This file is part of FFmpeg.
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 *
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 * FFmpeg is free software; you can redistribute it and/or
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 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
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 * FFmpeg is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
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 * License along with FFmpeg; if not, write to the Free Software
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 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#ifndef AVCODEC_FLACDSP_H
#define AVCODEC_FLACDSP_H

#include <stdint.h>
#include "libavutil/samplefmt.h"

typedef struct FLACDSPContext {
    void (*decorrelate[4])(uint8_t **out, int32_t **in, int channels,
                           int len, int shift);
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    void (*lpc16)(int32_t *samples, const int coeffs[32], int order,
                  int qlevel, int len);
    void (*lpc32)(int32_t *samples, const int coeffs[32], int order,
                  int qlevel, int len);
    void (*lpc16_encode)(int32_t *res, const int32_t *smp, int len, int order,
                         const int32_t coefs[32], int shift);
    void (*lpc32_encode)(int32_t *res, const int32_t *smp, int len, int order,
                         const int32_t coefs[32], int shift);
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} FLACDSPContext;

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void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
void ff_flacdsp_init_x86(FLACDSPContext *c, enum AVSampleFormat fmt, int channels, int bps);
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#endif /* AVCODEC_FLACDSP_H */