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Merge branch 'opt/hfp_audio_quality_v5.3' into 'release/v5.3'

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change(bt/bluedroid): optimized the HFP example workflow to improve audio quality (v5.3)

See merge request espressif/esp-idf!51552
This commit is contained in:
Jiang Jiang Jian
2026-08-06 11:31:54 +08:00
parent 6b0ebad36a 97b10b7096
commit 94ce294b91
2 changed files with 18 additions and 6 deletions
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examples/bluetooth/bluedroid/classic_bt/hfp_ag/main/bt_app_hf.c
+9 -3
View File
@@ -1,5 +1,5 @@
/* /*
* SPDX-FileCopyrightText: 2021-2025 Espressif Systems (Shanghai) CO LTD * SPDX-FileCopyrightText: 2021-2026 Espressif Systems (Shanghai) CO LTD
* *
* SPDX-License-Identifier: Unlicense OR CC0-1.0 * SPDX-License-Identifier: Unlicense OR CC0-1.0
*/ */
@@ -315,10 +315,12 @@ void bt_app_hf_cb(esp_hf_cb_event_t event, esp_hf_cb_param_t *param)
case ESP_HF_AUDIO_STATE_EVT: case ESP_HF_AUDIO_STATE_EVT:
{ {
ESP_LOGI(BT_HF_TAG, "--Audio State %s", c_audio_state_str[param->audio_stat.state]); ESP_LOGI(BT_HF_TAG, "--Audio State %s", c_audio_state_str[param->audio_stat.state]);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
if (param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED || if (param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED ||
param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED_MSBC) param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED_MSBC)
{ {
/* Disable connectable and discoverable mode to save the over-the-air bandwidth and ensure audio quality */
esp_bt_gap_set_scan_mode(ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
if(param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED) { if(param->audio_stat.state == ESP_HF_AUDIO_STATE_CONNECTED) {
s_audio_code = ESP_HF_AUDIO_STATE_CONNECTED; s_audio_code = ESP_HF_AUDIO_STATE_CONNECTED;
} else { } else {
@@ -328,11 +330,15 @@ void bt_app_hf_cb(esp_hf_cb_event_t event, esp_hf_cb_param_t *param)
esp_hf_ag_register_data_callback(bt_app_hf_incoming_cb, bt_app_hf_outgoing_cb); esp_hf_ag_register_data_callback(bt_app_hf_incoming_cb, bt_app_hf_outgoing_cb);
/* Begin send esco data task */ /* Begin send esco data task */
bt_app_send_data(); bt_app_send_data();
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
} else if (param->audio_stat.state == ESP_HF_AUDIO_STATE_DISCONNECTED) { } else if (param->audio_stat.state == ESP_HF_AUDIO_STATE_DISCONNECTED) {
ESP_LOGI(BT_HF_TAG, "--ESP AG Audio Connection Disconnected."); ESP_LOGI(BT_HF_TAG, "--ESP AG Audio Connection Disconnected.");
/* Resume connectable and discoverable mode */
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
bt_app_send_data_shut_down(); bt_app_send_data_shut_down();
}
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */ #endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
}
break; break;
} }
examples/bluetooth/bluedroid/classic_bt/hfp_hf/main/bt_app_hf.c
+9 -3
View File
@@ -1,5 +1,5 @@
/* /*
* SPDX-FileCopyrightText: 2021-2024 Espressif Systems (Shanghai) CO LTD * SPDX-FileCopyrightText: 2021-2026 Espressif Systems (Shanghai) CO LTD
* *
* SPDX-License-Identifier: Unlicense OR CC0-1.0 * SPDX-License-Identifier: Unlicense OR CC0-1.0
*/ */
@@ -258,16 +258,22 @@ void bt_app_hf_client_cb(esp_hf_client_cb_event_t event, esp_hf_client_cb_param_
{ {
ESP_LOGI(BT_HF_TAG, "--audio state %s", ESP_LOGI(BT_HF_TAG, "--audio state %s",
c_audio_state_str[param->audio_stat.state]); c_audio_state_str[param->audio_stat.state]);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED || if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED ||
param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED_MSBC) { param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_CONNECTED_MSBC) {
/* Disable connectable and discoverable mode to save the over-the-air bandwidth and ensure audio quality */
esp_bt_gap_set_scan_mode(ESP_BT_NON_CONNECTABLE, ESP_BT_NON_DISCOVERABLE);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
esp_hf_client_register_data_callback(bt_app_hf_client_incoming_cb, esp_hf_client_register_data_callback(bt_app_hf_client_incoming_cb,
bt_app_hf_client_outgoing_cb); bt_app_hf_client_outgoing_cb);
bt_app_hf_client_audio_open(); bt_app_hf_client_audio_open();
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
} else if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_DISCONNECTED) { } else if (param->audio_stat.state == ESP_HF_CLIENT_AUDIO_STATE_DISCONNECTED) {
/* Resume connectable and discoverable mode */
esp_bt_gap_set_scan_mode(ESP_BT_CONNECTABLE, ESP_BT_GENERAL_DISCOVERABLE);
#if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI
bt_app_hf_client_audio_close(); bt_app_hf_client_audio_close();
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
} }
#endif /* #if CONFIG_BT_HFP_AUDIO_DATA_PATH_HCI */
break; break;
} }