[deb_ffmpeg.git] / ffmpeg / libavcodec / ttadata.h

/*
 * TTA (The Lossless True Audio) data
 *
 * 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 AVCODEC_TTADATA_H
#define AVCODEC_TTADATA_H

#include "internal.h"

#define MAX_ORDER 16
typedef struct TTAFilter {
    int32_t shift, round, error;
    int32_t qm[MAX_ORDER];
    int32_t dx[MAX_ORDER];
    int32_t dl[MAX_ORDER];
} TTAFilter;

typedef struct TTARice {
    uint32_t k0, k1, sum0, sum1;
} TTARice;

typedef struct TTAChannel {
    int32_t predictor;
    TTAFilter filter;
    TTARice rice;
} TTAChannel;

extern const uint32_t ff_tta_shift_1[];
extern const uint32_t * const ff_tta_shift_16;
extern const uint8_t ff_tta_filter_configs[];

void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1);
void ff_tta_filter_init(TTAFilter *c, int32_t shift);
#endif /* AVCODEC_TTADATA_H */
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* TTA (The Lossless True Audio) data
	3	*
	4	* This file is part of FFmpeg.
	5	*
	6	* FFmpeg is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2.1 of the License, or (at your option) any later version.
	10	*
	11	* FFmpeg is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with FFmpeg; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#ifndef AVCODEC_TTADATA_H
	22	#define AVCODEC_TTADATA_H
	23
	24	#include "internal.h"
	25
	26	#define MAX_ORDER 16
	27	typedef struct TTAFilter {
	28	int32_t shift, round, error;
	29	int32_t qm[MAX_ORDER];
	30	int32_t dx[MAX_ORDER];
	31	int32_t dl[MAX_ORDER];
	32	} TTAFilter;
	33
	34	typedef struct TTARice {
	35	uint32_t k0, k1, sum0, sum1;
	36	} TTARice;
	37
	38	typedef struct TTAChannel {
	39	int32_t predictor;
	40	TTAFilter filter;
	41	TTARice rice;
	42	} TTAChannel;
	43
	44	extern const uint32_t ff_tta_shift_1[];
	45	extern const uint32_t * const ff_tta_shift_16;
	46	extern const uint8_t ff_tta_filter_configs[];
	47
	48	void ff_tta_rice_init(TTARice *c, uint32_t k0, uint32_t k1);
	49	void ff_tta_filter_init(TTAFilter *c, int32_t shift);
	50	#endif /* AVCODEC_TTADATA_H */