From 8177fff39802f56fde6ef2605bf1ef2986fdf6b4 Mon Sep 17 00:00:00 2001
From: Milanka Ringwald <mila@ringwald.ch>
Date: Tue, 24 Apr 2018 14:39:58 +0200
Subject: [PATCH] a2dp sink demo: add register track changed event

---
 example/a2dp_sink_demo.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/example/a2dp_sink_demo.c b/example/a2dp_sink_demo.c
index 91896bb9e..ebb38b152 100644
--- a/example/a2dp_sink_demo.c
+++ b/example/a2dp_sink_demo.c
@@ -765,7 +765,10 @@ static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channe
     if (!avrcp_cid) return;
 
     // ignore INTERIM status
-    if (status == AVRCP_CTYPE_RESPONSE_INTERIM) return;
+    if (status == AVRCP_CTYPE_RESPONSE_INTERIM){
+        printf(" INTERIM response \n"); 
+        return;
+    } 
             
     printf("AVRCP demo: command status: %s, ", avrcp_ctype2str(status));
     switch (packet[2]){
@@ -982,6 +985,9 @@ static void show_usage(void){
     printf("X - disable repeat mode\n");
     printf("z - shuffle all tracks\n");
     printf("Z - disable shuffle mode\n");
+
+    printf("a/A - register/deregister TRACK_CHANGED\n");
+
     printf("---\n");
 }
 #endif
@@ -1112,6 +1118,15 @@ static void stdin_process(char cmd){
             printf(" - disable shuffle mode\n");
             status = avrcp_controller_set_shuffle_mode(avrcp_cid, AVRCP_SHUFFLE_MODE_OFF);
             break;
+        case 'a':
+            printf("AVRCP: enable notification TRACK_CHANGED\n");
+            avrcp_controller_enable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED);
+            break;
+        case 'A':
+            printf("AVRCP: disable notification TRACK_CHANGED\n");
+            avrcp_controller_disable_notification(avrcp_cid, AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED);
+            break;
+
         default:
             show_usage();
             return;