ES7243E 模拟音频转I2S输入给BES I2S_Master数据运行流程分析
ES7243E 模拟音频转I2S输入给BES I2S_Master数据运行流程分析
LINE-IN接入
void aux_in_dothing_func(void)
{
FUNC_NAME_LINE_PRINT();
int activeCons;
osapi_lock_stack();
activeCons = btif_me_get_activeCons();
osapi_unlock_stack();
customer_app_pwl_stop();
osDelay(380);
app_status_indication_set(APP_STATUS_INDICATION_ALL_LED_OFF);
osDelay(380);
// aux_in_or_out_last = AUX_PLUG_IN;
//aux_in_detect_reset_func();
//if(AUX_PLUG_OUT == hal_gpio_pin_get_val((enum HAL_GPIO_PIN_T)AUX_PLUG_IN_OUT_TRIGGER_PIN))
//goto do_nothing;
//app_poweroff_timer_stop();
// app_ankey_timer_stop();
//audio_process_init();
app_bt_connectable_mode_stop_reconnecting();
osDelay(300);
app_audio_manager_sendrequest(APP_BT_STREAM_MANAGER_STOP,BT_STREAM_SBC, 0,0); //关闭蓝牙SBC音频
app_audio_manager_sendrequest(APP_BT_STREAM_MANAGER_START,BT_STREAM_LINEIN, 0,0);// 开启AUX 音频流
#ifdef AUDIO_LINEIN
case BT_STREAM_LINEIN:
TRACE(0,"xing:BT_STREAM_LINEIN OPEN");
// if(!bt_media_is_media_active_by_type(BT_STREAM_SBC | BT_STREAM_MEDIA | BT_STREAM_VOICE)) {
app_audio_sendrequest(APP_PLAY_LINEIN_AUDIO,(uint8_t)APP_BT_SETTING_OPEN, 0);
bt_media_set_current_media(BT_STREAM_LINEIN);
}
break;
#endif
#ifdef AUDIO_LINEIN
case APP_PLAY_LINEIN_AUDIO:
nRet = app_play_linein_onoff(true); //播放linein
break;
#endif
#ifdef AUDIO_LINEIN
case BT_STREAM_LINEIN:
if(bt_media_is_media_active_by_type(BT_STREAM_LINEIN))
{
app_audio_sendrequest(APP_PLAY_LINEIN_AUDIO,(uint8_t)APP_BT_SETTING_CLOSE, 0);
if(bt_media_get_current_media() & BT_STREAM_LINEIN)
bt_media_set_current_media(0);
bt_media_clear_media_type(stream_type,device_id);
}
break;
#endif
播放Linin 重点代码
int app_play_linein_onoff(bool onoff)
{
static bool isRun = false;
uint8_t *linein_audio_cap_buff = 0;
uint8_t *linein_audio_play_buff = 0;
uint8_t *linein_audio_loop_buf = NULL;
struct AF_STREAM_CONFIG_T stream_cfg;
uint8_t POSSIBLY_UNUSED *bt_eq_buff = NULL;
uint32_t POSSIBLY_UNUSED eq_buff_size;
uint8_t POSSIBLY_UNUSED play_samp_size;
TRACE(2,"app_play_linein_onoff work:%d op:%d", isRun, onoff);
if (isRun == onoff)
return 0;
if (onoff){
app_sysfreq_req(APP_SYSFREQ_USER_APP_0, APP_SYSFREQ_104M);
app_overlay_select(APP_OVERLAY_A2DP);
app_audio_mempool_init();
app_audio_mempool_get_buff(&linein_audio_cap_buff, LINEIN_CAPTURE_BUFFER_SIZE);
app_audio_mempool_get_buff(&linein_audio_play_buff, LINEIN_PLAYER_BUFFER_SIZE);
app_audio_mempool_get_buff(&linein_audio_loop_buf, LINEIN_PLAYER_BUFFER_SIZE<<2);
app_audio_pcmbuff_init(linein_audio_loop_buf, LINEIN_PLAYER_BUFFER_SIZE<<2);
#if (LINEIN_CAPTURE_CHANNEL == 1)
app_audio_mempool_get_buff((uint8_t **)&app_linein_play_cache, LINEIN_PLAYER_BUFFER_SIZE/2/2);
app_play_audio_lineinmode_init(LINEIN_CAPTURE_CHANNEL, LINEIN_PLAYER_BUFFER_SIZE/2/2);
#elif (LINEIN_CAPTURE_CHANNEL == 2)
app_play_audio_lineinmode_init(LINEIN_CAPTURE_CHANNEL, LINEIN_PLAYER_BUFFER_SIZE/2);
#endif
memset(&stream_cfg, 0, sizeof(stream_cfg));
#if (LINEIN_MODE == 1 || LINEIN_MODE == 6)
TRACE(0,"app_play_linein_onoff mode 01");
stream_cfg.bits = AUD_BITS_24; //
stream_cfg.channel_num = (enum AUD_CHANNEL_NUM_T)LINEIN_PLAYER_CHANNEL;
#if defined(__AUDIO_RESAMPLE__)
stream_cfg.sample_rate = AUD_SAMPRATE_44100;//add by zhoukang
#else
stream_cfg.sample_rate = AUD_SAMPRATE_44100;
#endif
af_stream_open(AUD_STREAM_ID_0, AUD_STREAM_PLAYBACK, &stream_cfg);// 调用音频框架 播放音频
audio_process_open(stream_cfg.sample_rate, stream_cfg.bits, stream_cfg.channel_num, stream_cfg.data_size/(stream_cfg.bits <= AUD_BITS_16 ? 2 : 4)/2, bt_eq_buff, eq_buff_size);
af_stream_start(AUD_STREAM_ID_0, AUD_STREAM_PLAYBACK);//开启音频
//捕获i2s数据
#if (LINEIN_CAPTURE_CHANNEL == 1) //?????
app_audio_mempool_get_buff((uint8_t **)&app_linein_play_cache, LINEIN_PLAYER_BUFFER_SIZE/2/2); //?????
app_play_audio_lineinmode_init(LINEIN_CAPTURE_CHANNEL, LINEIN_PLAYER_BUFFER_SIZE/2/2); //?????
#elif (LINEIN_CAPTURE_CHANNEL == 2)
app_play_audio_lineinmode_init(LINEIN_CAPTURE_CHANNEL, LINEIN_PLAYER_BUFFER_SIZE/2); //?????
#endif
memset(&stream_cfg, 0, sizeof(stream_cfg)); //???????
#if (LINEIN_MODE == 1 || LINEIN_MODE == 6) //?????
TRACE(0,"app_play_linein_onoff mode 01");
stream_cfg.bits = AUD_BITS_24; //
stream_cfg.channel_num = (enum AUD_CHANNEL_NUM_T)LINEIN_PLAYER_CHANNEL;
#if defined(__AUDIO_RESAMPLE__)
stream_cfg.sample_rate = AUD_SAMPRATE_44100;//add by zhoukang
#else
stream_cfg.sample_rate = AUD_SAMPRATE_44100;
#endif
#endif
Device设备选择的是配置i2s1 作为主 参数将传入af_open
#if (TJ_BOARD_ZP_H6506 == 1 || CSP_BOARD_WH301A == 1) //from I2S
#if FPGA==0
stream_cfg.device = AUD_STREAM_USE_I2S1_MASTER;//add by zhoukang 2021-08-17
#else
stream_cfg.device = AUD_STREAM_USE_I2S1_MASTER;//add by zhoukang 2021-08-17
#endif
音频输入路径
stream_cfg.io_path = AUD_INPUT_PATH_LINEIN;//add by zhoukang 2021-08-17
打开与启动
af_stream_open(AUD_STREAM_ID_0, AUD_STREAM_CAPTURE, &stream_cfg);
af_stream_start(AUD_STREAM_ID_0, AUD_STREAM_CAPTURE);
关闭
af_stream_close(AUD_STREAM_ID_0, AUD_STREAM_CAPTURE);
