tx.h

См. документацию.

/*
 * This file is part of FFmpeg.
 *
 * FFmpeg 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.
 *
 * FFmpeg 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 FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */
 
#ifndef AVUTIL_TX_H
#define AVUTIL_TX_H
 
#include <stdint.h>
#include <stddef.h>
 
typedef struct AVTXContext AVTXContext;
 
typedef struct AVComplexFloat {
    float re, im;
} AVComplexFloat;
 
enum AVTXType {
    AV_TX_FLOAT_FFT = 0,
    AV_TX_FLOAT_MDCT = 1,
};
 
typedef void (*av_tx_fn)(AVTXContext *s, void *out, void *in, ptrdiff_t stride);
 
int av_tx_init(AVTXContext **ctx, av_tx_fn *tx, enum AVTXType type,
               int inv, int len, const void *scale, uint64_t flags);
 
void av_tx_uninit(AVTXContext **ctx);
 
#endif /* AVUTIL_TX_H */