/* * *  Bluetooth low-complexity, subband codec (SBC) library * *  Copyright (C) 2004-2008  Marcel Holtmann <marcel@holtmann.org> *  Copyright (C) 2004-2005  Henryk Ploetz <henryk@ploetzli.ch> *  Copyright (C) 2005-2006  Brad Midgley <bmidgley@xmission.com> * * *  This library 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. * *  This library 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 this library; if not, write to the Free Software *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA * */#ifndef __SBC_H#define __SBC_H#ifdef __cplusplusextern "C" {#endif#include <stdint.h>/* sampling frequency */#define SBC_FREQ_16000		0x00#define SBC_FREQ_32000		0x01#define SBC_FREQ_44100		0x02#define SBC_FREQ_48000		0x03/* blocks */#define SBC_BLK_4		0x00#define SBC_BLK_8		0x01#define SBC_BLK_12		0x02#define SBC_BLK_16		0x03/* channel mode */#define SBC_MODE_MONO		0x00#define SBC_MODE_DUAL_CHANNEL	0x01#define SBC_MODE_STEREO		0x02#define SBC_MODE_JOINT_STEREO	0x03/* allocation method */#define SBC_AM_LOUDNESS		0x00#define SBC_AM_SNR		0x01/* subbands */#define SBC_SB_4		0x00#define SBC_SB_8		0x01/* Data endianess */#define SBC_LE			0x00#define SBC_BE			0x01struct sbc_struct {	unsigned long flags;	uint8_t frequency;	uint8_t blocks;	uint8_t subbands;	uint8_t mode;	uint8_t allocation;	uint8_t bitpool;	uint8_t endian;	void *priv;};typedef struct sbc_struct sbc_t;int sbc_init(sbc_t *sbc, unsigned long flags);int sbc_reinit(sbc_t *sbc, unsigned long flags);int sbc_parse(sbc_t *sbc, void *input, int input_len);int sbc_decode(sbc_t *sbc, void *input, int input_len, void *output,		int output_len, int *len);int sbc_encode(sbc_t *sbc, void *input, int input_len, void *output,		int output_len, int *written);int sbc_get_frame_length(sbc_t *sbc);int sbc_get_frame_duration(sbc_t *sbc);int sbc_get_codesize(sbc_t *sbc);void sbc_finish(sbc_t *sbc);#ifdef __cplusplus}#endif#endif /* __SBC_H */