68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
#ifndef _SBC_H_
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#define _SBC_H_
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/* defines */
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#define SBC_SUPPORT_OTHER_MODE 0 //0:just support mono mode
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#define SBC_SUCCESS 0
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#define SBC_NOT_ENOUGH_DATA -1
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#define SBC_BUFFER_TOO_SMALL -2
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#define SBC_NO_SYNCBYTE -3
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#define SBC_CHECKSUM_ERROR -4
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#define SBC_SYNCBYTE 0x9c
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#define SBC_MAX_SUBBANDS 8
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#if SBC_SUPPORT_OTHER_MODE
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#define SBC_MAX_CHANNELS 2
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#else
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#define SBC_MAX_CHANNELS 1
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#endif
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#define SBC_TERMINATOR -1
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/* structs, typedefs */
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#define SBC_FREQU16000 0x0
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#define SBC_FREQU32000 0x1
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#define SBC_FREQU44100 0x2
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#define SBC_FREQU48000 0x3
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typedef unsigned short TSBCSamplingFrequency;
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#define SBC_BLOCKS4 0x0
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#define SBC_BLOCKS8 0x1
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#define SBC_BLOCKS12 0x2
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#define SBC_BLOCKS16 0x3
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typedef unsigned short TSBCBlockNumber;
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#define SBC_MODE_MONO 0x0
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#if SBC_SUPPORT_OTHER_MODE
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#define SBC_MODE_DUAL 0x1
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#define SBC_MODE_STEREO 0x2
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#define SBC_MODE_JOINT 0x3
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#endif
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typedef unsigned short TSBCChannelMode;
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#define SBC_ALLOCLOUDNESS 0x0
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#define SBC_ALLOCSNR 0x1
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typedef unsigned short TSBCAllocMethod;
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#define SBC_SUBBANDS4 0x0
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#define SBC_SUBBANDS8 0x1
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typedef unsigned short TSBCSubbandNumber;
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typedef struct
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{
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TSBCSamplingFrequency samplingFrequency;
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TSBCBlockNumber blockNumber;
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TSBCChannelMode channelMode;
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TSBCAllocMethod allocMethod;
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TSBCSubbandNumber subbandNumber;
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unsigned char bitpool;
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} T_SBC_PARAMS;
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extern T_SBC_PARAMS sbc_enc_params;
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void sbc_init_encoder(void);
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int sbc_encode(unsigned char *p_input_buff, int input_size, T_SBC_PARAMS *p_params,
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unsigned char *p_output_buff, int *p_output_size);
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#endif
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