使用esp_audio_pay 播放SD卡音乐发现播放完成后要2秒才能进入回调函数

[luxianquan]

我想使用esp_audio_play 来播放SD卡音乐，用回调函数判断播放完成后重新播放，进而实现循环播放功能。
现在的问题是：每次播放完成后都要差不多2秒才能进回调函数。
我的程序初始化是：
static esp_audio_handle_t setup_player()
{
esp_audio_cfg_t cfg = DEFAULT_ESP_AUDIO_CONFIG();
audio_board_handle_t board_handle = audio_board_init();
cfg.vol_handle = board_handle->audio_hal;
cfg.vol_set = (audio_volume_set)audio_hal_set_volume;
cfg.vol_get = (audio_volume_get)audio_hal_get_volume;
cfg.prefer_type = ESP_AUDIO_PREFER_MEM;
cfg.resample_rate = 44100;
cfg.evt_que = xQueueCreate(3, sizeof(esp_audio_state_t));
cfg.cb_func = audio_service_cb;
esp_audio_handle_t player = esp_audio_create(&cfg);
audio_hal_ctrl_codec(board_handle->audio_hal, AUDIO_HAL_CODEC_MODE_BOTH, AUDIO_HAL_CTRL_START);
a2dp_stream_config_t a2dp_config = {
.type = AUDIO_STREAM_READER,
.user_callback.user_a2d_cb = user_a2dp_sink_cb,
};
audio_element_handle_t bt_stream_reader = a2dp_stream_init(&a2dp_config);
esp_audio_input_stream_add(player, bt_stream_reader);

ESP_LOGI(TAG, "[4.4] Create fatfs stream to read data from sdcard");
char *url = NULL;
sdcard_list_current(sdcard_list_handle, &url);
fatfs_stream_cfg_t fatfs_cfg = FATFS_STREAM_CFG_DEFAULT();
fatfs_cfg.type = AUDIO_STREAM_READER;
fatfs_stream_reader = fatfs_stream_init(&fatfs_cfg);
audio_element_set_uri(fatfs_stream_reader, url);
esp_audio_input_stream_add(player, fatfs_stream_reader);

ESP_LOGI(TAG, "[2.1] Create tone stream to read data from flash");
tone_stream_cfg_t tone_cfg = TONE_STREAM_CFG_DEFAULT();
tone_cfg.type = AUDIO_STREAM_READER;
audio_element_handle_t tone_stream_reader = tone_stream_init(&tone_cfg);
esp_audio_input_stream_add(player, tone_stream_reader);

// Add decoders and encoders to esp_audio
mp3_decoder_cfg_t mp3_dec_cfg = DEFAULT_MP3_DECODER_CONFIG();
wav_decoder_cfg_t wav_dec_cfg = DEFAULT_WAV_DECODER_CONFIG();
pcm_decoder_cfg_t pcm_dec_cfg = DEFAULT_PCM_DECODER_CONFIG();
esp_audio_codec_lib_add(player, AUDIO_CODEC_TYPE_DECODER, mp3_decoder_init(&mp3_dec_cfg));
esp_audio_codec_lib_add(player, AUDIO_CODEC_TYPE_DECODER, wav_decoder_init(&wav_dec_cfg));
esp_audio_codec_lib_add(player, AUDIO_CODEC_TYPE_DECODER, pcm_decoder_init(&pcm_dec_cfg));

// Create writers and add to esp_audio
i2s_stream_cfg_t i2s_writer = I2S_STREAM_CFG_DEFAULT();
i2s_writer.i2s_config.sample_rate = 44100;
i2s_writer.type = AUDIO_STREAM_WRITER;
esp_audio_output_stream_add(player, i2s_stream_init(&i2s_writer));
esp_audio_play_timeout_set(player,500);
esp_audio_vol_set(player, 60);

AUDIO_MEM_SHOW(TAG);
ESP_LOGI(TAG, "esp_audio instance is:%p\r\n", player);
return player;
}

回调函数是：
void audio_service_cb(esp_audio_state_t *audio, void *ctx)
{
ESP_LOGI(TAG, "Entry audio call back function status is %d",audio->status);
ESP_LOGI(TAG, "Entry audio call back function media type is is %d",audio->media_src);
esp_audio_state_t state = {0};
esp_audio_state_get(test_handle->player, &state);
if(test_handle->work_mode != SD_MODE)
return;
if(music_repeat == 1){
if((audio->status == AUDIO_STATUS_FINISHED)&&(state.media_src == MEDIA_SRC_TYPE_MUSIC_SD))
{

ESP_LOGI(TAG, "repeat play music is %s",music_name);
esp_audio_media_type_set(test_handle->player, MEDIA_SRC_TYPE_MUSIC_SD);
esp_audio_play(test_handle->player, AUDIO_CODEC_TYPE_DECODER, music_name, 0);
test_handle->work_mode = SD_MODE;
}
}
}

播放功能就是正常的函数使用：
memcpy(music_name,url,strlen(url));
ESP_LOGI("BS-X001", "play music is %s",url);
esp_audio_vol_set(test_handle->player, music_volume);
esp_audio_media_type_set(test_handle->player, MEDIA_SRC_TYPE_MUSIC_SD);
esp_audio_play(test_handle->player, AUDIO_CODEC_TYPE_DECODER, music_name, 0);
int duration = 0;
esp_audio_duration_get(test_handle->player, &duration);
ESP_LOGI("BS-X001", " music duration time %d ms",duration);
music_repeat = raw_datas[3];

附件是日志内容