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refactor(bt/bluedroid): Refactor hfp audio data path

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- Refactor audio APIs, optimize audio data path, reduce memory copy operations
- Support using external codec in application layer
This commit is contained in:
linruihao
2025-01-22 17:22:05 +08:00
parent 4fe1529fd4
commit eda7ea3f49
26 changed files with 1833 additions and 172 deletions
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72
components/bt/host/bluedroid/api/esp_hf_ag_api.c
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@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2015-2023 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2015-2025 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -528,6 +528,8 @@ esp_err_t esp_hf_ag_out_call(esp_bd_addr_t remote_addr, int num_active, int num_
return (status == BT_STATUS_SUCCESS) ? ESP_OK : ESP_FAIL;
}
#if (BTM_SCO_HCI_INCLUDED == TRUE)
esp_err_t esp_hf_ag_register_data_callback(esp_hf_incoming_data_cb_t recv, esp_hf_outgoing_data_cb_t send)
{
if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {
@@ -548,7 +550,73 @@ esp_err_t esp_hf_ag_register_data_callback(esp_hf_incoming_data_cb_t recv, esp_h
return (status == BT_STATUS_SUCCESS) ? ESP_OK : ESP_FAIL;
}
#if (BTM_SCO_HCI_INCLUDED == TRUE)
esp_err_t esp_hf_ag_register_audio_data_callback(esp_hf_ag_audio_data_cb_t callback)
{
if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {
return ESP_ERR_INVALID_STATE;
}
btc_msg_t msg;
msg.sig = BTC_SIG_API_CALL;
msg.pid = BTC_PID_HF;
msg.act = BTC_HF_REGISTER_AUDIO_DATA_CALLBACK_EVT;
btc_hf_args_t arg;
memset(&arg, 0, sizeof(btc_hf_args_t));
arg.reg_audio_data_cb.callback = callback;
/* Switch to BTC context */
bt_status_t status = btc_transfer_context(&msg, &arg, sizeof(btc_hf_args_t), NULL, NULL);
return (status == BT_STATUS_SUCCESS) ? ESP_OK : ESP_FAIL;
}
esp_hf_audio_buff_t *esp_hf_ag_audio_buff_alloc(uint16_t size)
{
if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {
return NULL;
}
if (size == 0) {
return NULL;
}
uint8_t *p_buf = NULL, *p_data;
BTA_AgAudioBuffAlloc(size, &p_buf, &p_data);
if (p_buf == NULL) {
return NULL;
}
esp_hf_audio_buff_t *audio_buf = (esp_hf_audio_buff_t *)p_buf;
audio_buf->buff_size = size;
audio_buf->data_len = 0;
audio_buf->data = p_data;
return audio_buf;
}
void esp_hf_ag_audio_buff_free(esp_hf_audio_buff_t *audio_buf)
{
if (audio_buf == NULL) {
return;
}
BTA_AgAudioBuffFree((UINT8 *)audio_buf);
}
esp_err_t esp_hf_ag_audio_data_send(esp_hf_sync_conn_hdl_t sync_conn_hdl, esp_hf_audio_buff_t *audio_buf)
{
if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {
return ESP_ERR_INVALID_STATE;
}
if (audio_buf == NULL || audio_buf->data_len == 0) {
return ESP_ERR_INVALID_ARG;
}
if (btc_hf_ag_audio_data_send(sync_conn_hdl, (uint8_t *)audio_buf, audio_buf->data, audio_buf->data_len)) {
return ESP_OK;
}
return ESP_FAIL;
}
esp_err_t esp_hf_ag_pkt_stat_nums_get(uint16_t sync_conn_handle)
{
if (esp_bluedroid_get_status() != ESP_BLUEDROID_STATUS_ENABLED) {