www.pudn.com > mediator15src.zip > a52.h

/* 
 * a52.h 
 * Copyright (C) 2000-2002 Michel Lespinasse  
 * Copyright (C) 1999-2000 Aaron Holtzman  
 * 
 * This file is part of a52dec, a free ATSC A-52 stream decoder. 
 * See http://liba52.sourceforge.net/ for updates. 
 * 
 * a52dec is free software; you can redistribute it and/or modify 
 * it under the terms of the GNU General Public License as published by 
 * the Free Software Foundation; either version 2 of the License, or 
 * (at your option) any later version. 
 * 
 * a52dec 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 General Public License for more details. 
 * 
 * You should have received a copy of the GNU General Public License 
 * along with this program; if not, write to the Free Software 
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA 
 */ 
 
#ifndef A52_H 
#define A52_H 
 
#ifndef LIBA52_DOUBLE 
typedef float sample_t; 
#else 
typedef double sample_t; 
#endif 
 
typedef unsigned int    uint32_t; 
typedef unsigned short  uint16_t; 
typedef unsigned char   uint8_t; 
 
typedef int     int32_t; 
typedef short   int16_t; 
typedef char    int8_t; 
 
typedef struct a52_state_s a52_state_t; 
 
#define A52_CHANNEL 0 
#define A52_MONO 1 
#define A52_STEREO 2 
#define A52_3F 3 
#define A52_2F1R 4 
#define A52_3F1R 5 
#define A52_2F2R 6 
#define A52_3F2R 7 
#define A52_CHANNEL1 8 
#define A52_CHANNEL2 9 
#define A52_DOLBY 10 
#define A52_CHANNEL_MASK 15 
 
#define A52_LFE 16 
#define A52_ADJUST_LEVEL 32 
 
a52_state_t * a52_init (uint32_t mm_accel); 
sample_t * a52_samples (a52_state_t * state); 
int a52_syncinfo (uint8_t * buf, int * flags, 
		  int * sample_rate, int * bit_rate); 
int a52_frame (a52_state_t * state, uint8_t * buf, int * flags, 
	       sample_t * level, sample_t bias); 
void a52_dynrng (a52_state_t * state, 
		 sample_t (* call) (sample_t, void *), void * data); 
int a52_block (a52_state_t * state); 
void a52_free (a52_state_t * state); 
 
#endif /* A52_H */