a52.h
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上传日期:2015-12-05
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- /*
- * a52.h
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * 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
- #define LIBA52_DOUBLE
- # ifdef __cplusplus
- extern "C" {
- # endif
- #ifndef LIBA52_DOUBLE
- typedef float sample_t;
- #else
- typedef double sample_t;
- #endif
- 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);
- # ifdef __cplusplus
- }
- # endif
- #endif /* A52_H */