huxi
146 lines
3.8 KiB
C
146 lines
3.8 KiB
C
/*
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*
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* Bluetooth low-complexity, subband codec (SBC) library
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*
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* Copyright (C) 2008-2010 Nokia Corporation
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* Copyright (C) 2004-2010 Marcel Holtmann <marcel@holtmann.org>
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* Copyright (C) 2004-2005 Henryk Ploetz <henryk@ploetzli.ch>
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* Copyright (C) 2005-2006 Brad Midgley <bmidgley@xmission.com>
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*
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*/
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#ifndef __SBC_ENC_H
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#define __SBC_ENC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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//typedef unsigned char uint8 ,u8 ,U8 ,uint8_t;
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//typedef unsigned short int uint16 ,UINT16 ,U16 ,u16 ,uint16_t;
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//typedef unsigned int uint32 ,UINT32,U32 ,u32 ,uint32_t ,uintptr_t;
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//typedef signed char sint8 ,s8 ,S8,int8 ,int8_t;
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//typedef signed short int sint16 ,SINT16 ,S16 ,s16,int16,INT16,int16_t ;
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//typedef signed int sint32 ,SINT32,S32 ,s32,int32 ,INT32;//,;
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//typedef unsigned int size_t,ssize_t;
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//typedef int int32_t ;
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//typedef unsigned __int64 int64_t;
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//typedef __int64 uint64_t ;
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//#include "typedef.h"
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//#include <stdint.h>
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//#include <sys/types.h>
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#include <stddef.h>
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#ifndef __GNUC__
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#define SBC_ENCODE
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#endif
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/* sampling frequency */
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#define SBC_FREQ_16000 0x00
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#define SBC_FREQ_32000 0x01
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#define SBC_FREQ_44100 0x02
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#define SBC_FREQ_48000 0x03
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/* blocks */
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#define SBC_BLK_4 0x00
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#define SBC_BLK_8 0x01
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#define SBC_BLK_12 0x02
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#define SBC_BLK_16 0x03
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/* channel mode */
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#define SBC_MODE_MONO 0x00
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#define SBC_MODE_DUAL_CHANNEL 0x01
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#define SBC_MODE_STEREO 0x02
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#define SBC_MODE_JOINT_STEREO 0x03
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/* allocation method */
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#define SBC_AM_LOUDNESS 0x00
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#define SBC_AM_SNR 0x01
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/* subbands */
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#define SBC_SB_4 0x00
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#define SBC_SB_8 0x01
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/* Data endianness */
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#define SBC_LE 0x00
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#define SBC_BE 0x01
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typedef struct sbc_struct {
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unsigned int flags;
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unsigned char frequency;
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unsigned char blocks;
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unsigned char subbands;
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unsigned char mode;
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unsigned char allocation;
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unsigned char bitpool;
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unsigned char endian;
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void *priv;
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void *priv_alloc_base;
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} sbc_t;
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unsigned int sbc_enc_query(void);
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int sbc_init(sbc_t *sbc, unsigned long flags, void *priv);
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int sbc_reinit(sbc_t *sbc, unsigned long flags);
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unsigned int sbc_parse(sbc_t *sbc, const void *input, size_t input_len);
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/* Decodes ONE input block into ONE output block */
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unsigned int sbc_decode(sbc_t *sbc, const void *input, size_t input_len,
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void *output, size_t output_len, size_t *written);
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/* Encodes ONE input block into ONE output block */
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unsigned int sbc_encode(sbc_t *sbc, const void *input, size_t input_len,
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void *output, size_t output_len, unsigned int *written);
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/* Returns the output block size in bytes */
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//size_t sbc_get_frame_length(sbc_t *sbc);
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/* Returns the time one input/output block takes to play in msec*/
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unsigned sbc_get_frame_duration(sbc_t *sbc);
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/* Returns the input block size in bytes */
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//size_t sbc_get_codesize(sbc_t *sbc);
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const char *sbc_get_implementation_info(sbc_t *sbc);
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void sbc_finish(sbc_t *sbc);
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//#define htons(x) ( ( (((unsigned short)(x)) >>8) & 0xff) | ((((unsigned short)(x)) & 0xff)<<8) )
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#ifdef __cplusplus
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}
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#endif
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struct option {
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const char *name;
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int has_arg;
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int *flag;
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int val;
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};
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#endif /* __SBC_ENC_H */
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