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feat(bt/bluedroid): Report A2DP sink codec capabilities for A2DP source

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This commit is contained in:
yangfeng
2025-12-10 10:53:22 +08:00
parent 48e7e0618d
commit 6ee623c1e6
4 changed files with 88 additions and 0 deletions
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9
components/bt/host/bluedroid/api/include/api/esp_a2dp_api.h
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@@ -242,6 +242,7 @@ typedef enum {
ESP_A2D_SNK_SET_DELAY_VALUE_EVT, /*!< indicate a2dp sink set delay report value complete, only used for A2DP SINK */
ESP_A2D_SNK_GET_DELAY_VALUE_EVT, /*!< indicate a2dp sink get delay report value complete, only used for A2DP SINK */
ESP_A2D_REPORT_SNK_DELAY_VALUE_EVT, /*!< report delay value, only used for A2DP SRC */
ESP_A2D_REPORT_SNK_CODEC_CAPS_EVT, /*!< report sink codec capabilities, only used for A2DP SRC */
} esp_a2d_cb_event_t;
/**
@@ -340,6 +341,14 @@ typedef union {
uint16_t delay_value; /*!< delay report value */
} a2d_report_delay_value_stat; /*!< A2DP source received sink report value status */
/**
* @brief ESP_A2D_REPORT_SNK_CODEC_CAPS_EVT
*/
struct a2d_report_snk_codec_caps_param {
esp_a2d_conn_hdl_t conn_hdl; /*!< connection handle */
esp_a2d_mcc_t mcc; /*!< A2DP sink media codec capability information */
} a2d_report_snk_codec_caps_stat; /*!< A2DP source received sink codec capabilities */
} esp_a2d_cb_param_t;
/**

44
components/bt/host/bluedroid/btc/profile/std/a2dp/bta_av_co.c
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@@ -1780,6 +1780,50 @@ BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max)
return TRUE;
}
/*******************************************************************************
**
** Function bta_av_co_get_peer_sink_caps
**
** Description Get the sink codec capabilities of the peer
**
** Returns TRUE if sink capabilities are available, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_get_peer_sink_caps(tBTA_AV_HNDL hndl, UINT8 *p_codec_caps, UINT8 *p_codec_type)
{
tBTA_AV_CO_PEER *p_peer;
tBTA_AV_CO_SINK *p_sink;
FUNC_TRACE();
/* Find the peer info */
p_peer = bta_av_co_get_peer(hndl);
if (p_peer == NULL) {
APPL_TRACE_ERROR("bta_av_co_get_peer_sink_caps could not find peer entry");
return FALSE;
}
/* Check if we have a selected sink */
if (p_peer->p_snk == NULL) {
APPL_TRACE_ERROR("bta_av_co_get_peer_sink_caps no sink selected");
return FALSE;
}
p_sink = p_peer->p_snk;
/* Copy the codec capabilities */
if (p_codec_caps) {
memcpy(p_codec_caps, p_sink->codec_caps, AVDT_CODEC_SIZE);
}
/* Copy the codec type */
if (p_codec_type) {
*p_codec_type = p_sink->codec_type;
}
return TRUE;
}
/* the call out functions for audio stream */
const tBTA_AV_CO_FUNCTS bta_av_a2d_cos = {
bta_av_co_audio_init,

24
components/bt/host/bluedroid/btc/profile/std/a2dp/btc_av.c
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@@ -522,6 +522,30 @@ static BOOLEAN btc_av_state_opening_handler(btc_sm_event_t event, void *p_data)
} else {
BTC_TRACE_WARNING("AVRC not Init, not using it.");
}
} else if (btc_av_cb.peer_sep == AVDT_TSEP_SNK) {
/* For A2DP source, report sink codec capabilities after connection established */
UINT8 codec_caps[AVDT_CODEC_SIZE];
UINT8 codec_type;
if (bta_av_co_get_peer_sink_caps(btc_av_cb.bta_handle, codec_caps, &codec_type)) {
switch (codec_type) {
/* Currently only supports SBC */
case BTA_AV_CODEC_SBC: {
param.a2d_report_snk_codec_caps_stat.conn_hdl = btc_av_cb.bta_handle;
param.a2d_report_snk_codec_caps_stat.mcc.type = ESP_A2D_MCT_SBC;
memcpy(&param.a2d_report_snk_codec_caps_stat.mcc.cie, (uint8_t *)codec_caps + BTC_AV_SBC_CIE_OFFSET, BTC_AV_SBC_CIE_LEN);
btc_a2d_cb_to_app(ESP_A2D_REPORT_SNK_CODEC_CAPS_EVT, &param);
break;
}
default: {
BTC_TRACE_WARNING("Unsupported codec type %d", codec_type);
break;
}
}
} else {
BTC_TRACE_WARNING("No sink capabilities available yet");
}
}
}
btc_queue_advance();

11
components/bt/host/bluedroid/btc/profile/std/a2dp/include/btc_av_co.h
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@@ -216,6 +216,17 @@ BOOLEAN bta_av_co_peer_cp_supported(tBTA_AV_HNDL hndl);
*******************************************************************************/
BOOLEAN bta_av_co_get_remote_bitpool_pref(UINT8 *min, UINT8 *max);
/*******************************************************************************
**
** Function bta_av_co_get_peer_sink_caps
**
** Description Get the sink codec capabilities of the peer
**
** Returns TRUE if sink capabilities are available, FALSE otherwise
**
*******************************************************************************/
BOOLEAN bta_av_co_get_peer_sink_caps(tBTA_AV_HNDL hndl, UINT8 *p_codec_caps, UINT8 *p_codec_type);
#endif ///BTA_AV_INCLUDED == TRUE
#endif