FFmpeg/libavcodec/flacdsp.h

/*
 * This file is part of Libav.
 *
 * Libav is free software; you can redistribute it and/or
 * 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.
 *
 * Libav is distributed in the hope that it will be useful,
 * 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
 * License along with Libav; if not, write to the Free Software
 * 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);
    void (*lpc)(int32_t *samples, const int coeffs[32], int order,
                int qlevel, int len);
    void (*lpc_encode)(int32_t *res, const int32_t *smp, int len, int order,
                       const int32_t *coefs, int shift);
} FLACDSPContext;

void ff_flacdsp_init(FLACDSPContext *c, enum AVSampleFormat fmt, int bps);
void ff_flacdsp_init_arm(FLACDSPContext *c, enum AVSampleFormat fmt, int bps);

#endif /* AVCODEC_FLACDSP_H */