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vdr/ac3dec/ac3.h
2001-11-24 14:48:04 +01:00

65 lines
1.8 KiB
C

/*
* ac3.h
*
* Copyright (C) Aaron Holtzman - May 1999
*
* This file is part of ac3dec, a free Dolby AC-3 stream decoder.
*
* ac3dec 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, or (at your option)
* any later version.
*
* ac3dec 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*------------------------------------------------------------
*
* 24 Nov 2001
* Andreas Schultz <aschultz@cs.uni-magdeburg.de>
* Added ac3_buffersize()
*/
#define AC3_BUFFER_SIZE (6*1024*16)
#ifndef __AC3_H__
#define __AC3_H__
#ifdef __OMS__
#include <oms/plugin/output_audio.h>
#else
//#include "audio_out.h"
#endif
#include <inttypes.h>
#define AC3_DOLBY_SURR_ENABLE (1<<0)
#define AC3_ALTIVEC_ENABLE (1<<1)
typedef struct ac3_config_s {
// Bit flags that enable various things
uint32_t flags;
// Number of discrete channels in final output (for downmixing)
uint16_t num_output_ch;
// Which channel of a dual mono stream to select
uint16_t dual_mono_ch_sel;
} ac3_config_t;
void ac3dec_init (void);
#ifdef __OMS__
size_t ac3dec_decode_data (plugin_output_audio_t *output, uint8_t *data_start, uint8_t *data_end);
#else
size_t ac3dec_decode_data (uint8_t *data_start ,uint8_t *data_end, int ac3reset, int *input_pointer, int *output_pointer, char *ac3_data);
#endif
uint32_t ac3_buffersize();
#endif