bts_a2dp_source.h

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/*
 * Copyright (c) HiSilicon (Shanghai) Technologies Co., Ltd. 2022. All rights reserved.
 * Description: BT A2DP-SRC module.
 */
 
#ifndef BTS_A2DP_SOURCE_H
#define BTS_A2DP_SOURCE_H
 
#include "bts_def.h"
#ifdef __cplusplus
extern "C" {
#endif
 
#define A2DP_CODEC_PRIORITY_DISABLED (-1)
#define A2DP_CODEC_PRIORITY_DEFAULT 0
#define A2DP_CODEC_PRIORITY_HIGHEST (1000 * 1000)
 
#define A2DP_CODEC_SAMPLE_RATE_NONE 0x00
#define A2DP_CODEC_SAMPLE_RATE_44100 (0x01 << 0)
#define A2DP_CODEC_SAMPLE_RATE_48000 (0x01 << 1)
#define A2DP_CODEC_SAMPLE_RATE_88200 (0x01 << 2)
#define A2DP_CODEC_SAMPLE_RATE_96000 (0x01 << 3)
#define A2DP_CODEC_SAMPLE_RATE_176400 (0x01 << 4)
#define A2DP_CODEC_SAMPLE_RATE_192000 (0x01 << 5)
 
#define A2DP_CODEC_BITS_PER_SAMPLE_NONE 0x00
#define A2DP_CODEC_BITS_PER_SAMPLE_16 (0x01 << 0)
#define A2DP_CODEC_BITS_PER_SAMPLE_24 (0x01 << 1)
#define A2DP_CODEC_BITS_PER_SAMPLE_32 (0x01 << 2)
 
#define A2DP_CODEC_CHANNEL_MODE_NONE 0x00
 
#define A2DP_CODEC_CHANNEL_MODE_MONO (0x01 << 0)
#define A2DP_CODEC_CHANNEL_MODE_STEREO (0x01 << 1)
 
typedef enum {
    A2DP_CODEC_TYPE_SBC = 0x00,        
    A2DP_CODEC_TYPE_AAC,               
    A2DP_CODEC_TYPE_APTX,              
    A2DP_CODEC_TYPE_APTX_HD,           
    A2DP_CODEC_TYPE_LDAC,              
    A2DP_CODEC_TYPE_LHDC,              
    A2DP_CODEC_TYPE_LC3,               
    A2DP_CODEC_TYPE_L2HC,              
    A2DP_CODEC_TYPE_INVALID = 0xF4240, 
} a2dp_codec_type_t;
 
typedef enum {
    A2DP_OPTIONAL_CODEC_NOT_SUPPORT = 0x00, 
    A2DP_OPTIONAL_CODEC_SUPPORT,            
    A2DP_OPTIONAL_CODEC_SUPPORT_UNKNOWN,    
} a2dp_optional_codec_support_state_t;
 
typedef struct {
    int codec_priority;            
    unsigned int codec_type;       
    unsigned char sample_rate;     
    unsigned char bits_per_sample; 
    unsigned char channel_mode;    
    unsigned long codec_specific1; 
    unsigned long codec_specific2; 
    unsigned long codec_specific3; 
    unsigned long codec_specific4; 
} a2dp_codec_info_t;
 
 
typedef void (*a2dp_src_connect_state_changed_callback)(bd_addr_t *bd_addr, int conn_state);
 
typedef void (*a2dp_src_playing_state_changed_callback)(bd_addr_t *bd_addr, int playing_state);
 
typedef void (*a2dp_src_configuration_changed_callback)(bd_addr_t *bd_addr, a2dp_codec_info_t *info);
 
typedef struct {
    a2dp_src_connect_state_changed_callback connectstate_changed_cb;
    a2dp_src_playing_state_changed_callback playing_state_changed_cb;
    a2dp_src_configuration_changed_callback configuration_changed_cb;
} a2dp_src_callbacks_t;
 
int a2dp_src_get_device_connect_state(const bd_addr_t *bd_addr);
 
int a2dp_src_get_playing_state(const bd_addr_t *bd_addr);
 
int a2dp_src_connect(const bd_addr_t *bd_addr);
 
int a2dp_src_disconnect(const bd_addr_t *bd_addr);
 
bd_addr_t a2dp_src_get_active_device(void);
 
int a2dp_src_start_playing(const bd_addr_t *bd_addr);
 
int a2dp_src_suspend_playing(const bd_addr_t *bd_addr);
 
int a2dp_src_stop_playing(const bd_addr_t *bd_addr);
 
int a2dp_src_register_callbacks(a2dp_src_callbacks_t *func);
 
int a2dp_src_deregister_callbacks(a2dp_src_callbacks_t *func);
 
#ifdef __cplusplus
}
#endif
#endif /* BTS_A2DP_SOURCE_H */