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feat: Add default SBC SEP in A2DP init

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yangfeng
2026-08-27 15:44:58 +08:00
parent ba8b1091a5
commit 998bd59e3f
5 changed files with 104 additions and 11 deletions
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components/bt/host/bluedroid/api/include/api/esp_a2dp_api.h
+11 -2
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@@ -257,6 +257,7 @@ typedef enum {
ESP_A2D_SEP_REG_FAIL, /*!< A2DP stream endpoint register generic fail */
ESP_A2D_SEP_REG_UNSUPPORTED, /*!< A2DP stream endpoint register fail, unsupported codec type or param */
ESP_A2D_SEP_REG_INVALID_STATE, /*!< A2DP stream endpoint register fail, invalid state */
ESP_A2D_SEP_REG_SBC_REQUIRED, /*!< A2DP stream endpoint register fail, at least one SBC SEP must remain */
} esp_a2d_sep_reg_state_t;
/**
@@ -511,7 +512,11 @@ esp_err_t esp_a2d_sink_init(void);
* SEP index repeatedly will overwrite the old one.
* It is necessary to set BT_A2DP_USE_EXTERNAL_CODEC to y.
*
* @note The SEID determines the priority of negotiating the configuration with the peer for initiator.
* @note After A2DP sink init, every SEID is pre-registered with the mandatory default SBC SEP.
* Calling this API overwrites that SEID. A2DP requires at least one SBC SEP; registering a
* non-SBC codec that would overwrite the last SBC SEP fails with ESP_A2D_SEP_REG_SBC_REQUIRED.
* Therefore using AAC (or other non-SBC codecs) requires ESP_A2D_MAX_SEPS >= 2.
* The SEID determines the priority of negotiating the configuration with the peer for initiator.
* The lower the SEID, the higher the priority of the codec capability.
*
* @param[in] seid: local SEP identifier, start from 0, less than ESP_A2D_MAX_SEPS
@@ -667,7 +672,11 @@ esp_err_t esp_a2d_source_set_pref_mcc(esp_a2d_conn_hdl_t conn_hdl, const esp_a2d
* SEP index repeatedly will overwrite the old one.
* It is necessary to set BT_A2DP_USE_EXTERNAL_CODEC to y.
*
* @note The SEID determines the priority of negotiating the configuration with the peer for initiator.
* @note After A2DP source init, every SEID is pre-registered with the mandatory default SBC SEP.
* Calling this API overwrites that SEID. A2DP requires at least one SBC SEP; registering a
* non-SBC codec that would overwrite the last SBC SEP fails with ESP_A2D_SEP_REG_SBC_REQUIRED.
* Therefore using AAC (or other non-SBC codecs) requires ESP_A2D_MAX_SEPS >= 2.
* The SEID determines the priority of negotiating the configuration with the peer for initiator.
* The lower the SEID, the higher the priority of the codec capability.
*
* @param[in] seid: local SEP identifier, start from 0, less than ESP_A2D_MAX_SEPS