193 lines
6 KiB
C
193 lines
6 KiB
C
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/***************************************************************************
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*
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* Copyright 2015-2019 BES.
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* All rights reserved. All unpublished rights reserved.
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*
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* No part of this work may be used or reproduced in any form or by any
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* means, or stored in a database or retrieval system, without prior written
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* permission of BES.
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*
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* Use of this work is governed by a license granted by BES.
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* This work contains confidential and proprietary information of
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* BES. which is protected by copyright, trade secret,
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* trademark and other intellectual property rights.
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*
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****************************************************************************/
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#ifndef _CODEC_SBC_H
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#define _CODEC_SBC_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "bluetooth.h"
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#define BTIF_SBC_USE_FIXED_POINT_ENABLED
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#ifdef BTIF_SBC_USE_FIXED_POINT_ENABLED
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typedef S32 REAL;
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#else
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typedef float REAL;
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#endif
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typedef U8 btif_sbc_sample_freq_t;
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#define BTIF_SBC_CHNL_SAMPLE_FREQ_16 0
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#define BTIF_SBC_CHNL_SAMPLE_FREQ_32 1
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#define BTIF_SBC_CHNL_SAMPLE_FREQ_44_1 2
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#define BTIF_SBC_CHNL_SAMPLE_FREQ_48 3
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typedef U8 btif_sbc_channel_mode_t;
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#define BTIF_SBC_CHNL_MODE_MONO 0
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#define BTIF_SBC_CHNL_MODE_DUAL_CHNL 1
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#define BTIF_SBC_CHNL_MODE_STEREO 2
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#define BTIF_SBC_CHNL_MODE_JOINT_STEREO 3
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typedef U8 btif_sbc_alloc_method_t;
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#define BTIF_SBC_ALLOC_METHOD_LOUDNESS 0
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#define BTIF_SBC_ALLOC_METHOD_SNR 1
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#define BTIF_SBC_MAX_NUM_BLK 16
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#define BTIF_SBC_MAX_NUM_SB 8
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#define BTIF_SBC_MAX_NUM_CHNL 2
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#define BTIF_SBC_MAX_PCM_DATA 512
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#define BTIF_SBC_DEC_ALL 0
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#define BTIF_SBC_DEC_LEFT 1
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#define BTIF_SBC_DEC_RIGHT 2
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#define BTIF_SBC_SPLIT_LEFT 1
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#define BTIF_SBC_SPLIT_RIGHT 2
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#define BTIF_MSBC_BLOCKS 15
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typedef U8 btif_sbc_alloc_method_t;
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#define BTIF_SBC_ALLOC_METHOD_LOUDNESS 0
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#define BTIF_SBC_ALLOC_METHOD_SNR 1
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typedef struct {
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U8 bitPool;
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btif_sbc_sample_freq_t sampleFreq;
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btif_sbc_channel_mode_t channelMode;
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btif_sbc_alloc_method_t allocMethod;
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U8 numBlocks;
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U8 numSubBands;
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U8 numChannels;
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U8 mSbcFlag;
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U16 bitOffset;
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U8 crc;
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U8 fcs;
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U8 join[BTIF_SBC_MAX_NUM_SB];
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U8 scale_factors[BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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S32 scaleFactors[BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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U16 levels[BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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S8 bitNeed0[BTIF_SBC_MAX_NUM_SB];
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S8 bitNeed1[BTIF_SBC_MAX_NUM_SB];
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U8 bits[BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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REAL sbSample[BTIF_SBC_MAX_NUM_BLK][BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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U8 fcs_bak;
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} btif_sbc_stream_info_t;
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typedef struct {
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U8 bitPool;
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uint8_t sampleFreq;
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uint8_t channelMode;
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uint8_t allocMethod;
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U8 numBlocks;
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U8 numSubBands;
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U8 numChannels;
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U8 mSbcFlag;
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} btif_sbc_stream_info_short_t;
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typedef struct {
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btif_sbc_stream_info_t streamInfo;
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U8 sFactorsJoint[BTIF_SBC_MAX_NUM_CHNL][BTIF_SBC_MAX_NUM_SB];
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REAL sbJoint[BTIF_SBC_MAX_NUM_BLK][BTIF_SBC_MAX_NUM_CHNL];
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S16 X0[80 * 2];
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S16 X1[80 * 2];
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U16 X0pos, X1pos;
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REAL Y[16];
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} btif_sbc_encoder_t;
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typedef struct {
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btif_sbc_stream_info_t streamInfo;
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U16 maxPcmLen;
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REAL V0[160];
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REAL V1[160];
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struct {
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U8 stageBuff[BTIF_SBC_MAX_PCM_DATA];
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U16 stageLen;
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U16 curStageOff;
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U8 *rxBuff;
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U16 rxSize;
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U8 rxState;
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} parser;
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} btif_sbc_decoder_t;
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typedef struct {
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list_entry_t node;
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uint8_t *data;
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uint16_t dataLen;
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uint16_t frameSize;
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btif_bt_packet_t packet;
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uint16_t dataSent;
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uint16_t frmDataSent;
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} btif_a2dp_sbc_packet_t;
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typedef struct {
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btif_sbc_sample_freq_t sampleFreq;
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uint8_t numChannels;
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uint16_t dataLen;
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uint8_t *data;
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} btif_sbc_pcm_data_t;
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uint16_t btif_sbc_frame_len(btif_sbc_stream_info_t *StreamInfo);
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void btif_sbc_init_decoder(btif_sbc_decoder_t *Decoder);
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bt_status_t btif_sbc_decode_frames(btif_sbc_decoder_t *Decoder,
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uint8_t *Buff,
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uint16_t Len,
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uint16_t *BytesParsed,
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btif_sbc_pcm_data_t *PcmData,
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uint16_t MaxPcmData,
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float* gains);
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bt_status_t btif_sbc_decode_frames_parser(btif_sbc_decoder_t *Decoder,
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uint8_t *Buff,
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uint16_t Len,
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uint16_t *BytesParsed);
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bt_status_t btif_sbc_decode_frames_out_sbsamples(btif_sbc_decoder_t *Decoder,
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uint8_t *Buff,
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uint16_t Len,
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uint16_t *BytesDecoded,
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btif_sbc_pcm_data_t *PcmData,
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uint16_t MaxPcmData,
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float* gains,
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uint8_t ChooseDecChannel,
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REAL *SBSamplesBuf,
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uint32_t SBSamplesBufLen,
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uint32_t *SBSamplesBufUsed,
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uint8_t ChooseSplitChannel);
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void btif_sbc_init_encoder(btif_sbc_encoder_t *Encoder);
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bt_status_t btif_sbc_encode_frames(btif_sbc_encoder_t *Encoder,
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btif_sbc_pcm_data_t *PcmData,
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uint16_t *BytesEncoded,
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uint8_t *Buff,
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uint16_t *Len,
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uint16_t MaxSbcData);
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bt_status_t btif_sbc_encode_frames_with_sbsamples(btif_sbc_encoder_t *Encoder,
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REAL *SBSamplesBuf,
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uint32_t SBSamplesBufLen_bytes,
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uint32_t *SBSamplesBufUsed_bytes,
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uint8_t *Buff,
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uint16_t *Len,
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uint16_t MaxSbcData,
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uint8_t *number_freame_encoded);
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void btif_plc_update_sbc_decoder_state(btif_sbc_encoder_t *Encoder, btif_sbc_pcm_data_t *PcmData, btif_sbc_decoder_t *Decoder, float *gain);
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#ifdef __cplusplus
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}
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#endif
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#endif /* CODEC_SBC */
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