Reworking BT output

components/driver_bt/bt_app_core.c

@@ -7,7 +7,6 @@
 */
 
 #include "bt_app_core.h"
-
 #include <stdint.h>
 #include "esp_system.h"
 #include <string.h>

components/driver_bt/bt_app_core.h

@@ -15,9 +15,29 @@
 #include <stdio.h>
 
 #define BT_APP_CORE_TAG                   "BT_APP_CORE"
-
 #define BT_APP_SIG_WORK_DISPATCH          (0x01)
 
+/* A2DP global state */
+enum {
+    APP_AV_STATE_IDLE,
+    APP_AV_STATE_DISCOVERING,
+    APP_AV_STATE_DISCOVERED,
+    APP_AV_STATE_UNCONNECTED,
+    APP_AV_STATE_CONNECTING,
+    APP_AV_STATE_CONNECTED,
+    APP_AV_STATE_DISCONNECTING,
+};
+
+/* sub states of APP_AV_STATE_CONNECTED */
+enum {
+    APP_AV_MEDIA_STATE_IDLE,
+    APP_AV_MEDIA_STATE_STARTING,
+    APP_AV_MEDIA_STATE_STARTED,
+    APP_AV_MEDIA_STATE_STOPPING,
+	APP_AV_MEDIA_STATE_WAIT_DISCONNECT
+};
+extern int bt_app_source_get_a2d_state();
+extern int bt_app_source_get_media_state();
 /**
  * @brief     handler for the dispatched work
  */

components/driver_bt/bt_app_sink.c

@@ -63,6 +63,7 @@ static void bt_av_hdl_avrc_ct_evt(uint16_t event, void *p_param);
 /* avrc TG event handler */
 static void bt_av_hdl_avrc_tg_evt(uint16_t event, void *p_param);
 static void volume_set_by_local_host(uint8_t volume);
+static void bt_av_notify_evt_handler(uint8_t event_id, esp_avrc_rn_param_t *event_parameter);
 
 static const char *s_a2d_conn_state_str[] = {"Disconnected", "Connecting", "Connected", "Disconnecting"};
 static const char *s_a2d_audio_state_str[] = {"Suspended", "Stopped", "Started"};
@@ -378,7 +379,7 @@ static void bt_av_play_pos_changed(void)
     }
 }
 
-void bt_av_notify_evt_handler(uint8_t event_id, esp_avrc_rn_param_t *event_parameter)
+static void bt_av_notify_evt_handler(uint8_t event_id, esp_avrc_rn_param_t *event_parameter)
 {
     switch (event_id) {
     case ESP_AVRC_RN_TRACK_CHANGE: