Only start MusicPlaybackReceiver if device supports music info

Also block sending music info in HuamiSupport if device does not support it

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/AbstractDeviceCoordinator.java

@@ -129,4 +129,9 @@ public abstract class AbstractDeviceCoordinator implements DeviceCoordinator {
     public boolean supportsActivityTracks() {
         return false;
     }
+
+    @Override
+    public boolean supportsMusicInfo() {
+        return false;
+    }
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/DeviceCoordinator.java

@@ -248,4 +248,10 @@ public interface DeviceCoordinator {
      * making some sound or lighting up
      */
     boolean supportsFindDevice();
+
+    /**
+     * Indicates whether the device supports displaying music information
+     * like artist, title, album, play state etc.
+     */
+    boolean supportsMusicInfo();
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/huami/amazfitcor/AmazfitCorCoordinator.java

@@ -68,4 +68,9 @@ public class AmazfitCorCoordinator extends HuamiCoordinator {
     public boolean supportsWeather() {
         return true;
     }
+
+    @Override
+    public boolean supportsMusicInfo() {
+        return true;
+    }
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/pebble/PebbleCoordinator.java

@@ -165,4 +165,9 @@ public class PebbleCoordinator extends AbstractDeviceCoordinator {
     public boolean supportsFindDevice() {
         return true;
     }
+
+    @Override
+    public boolean supportsMusicInfo() {
+        return true;
+    }
 }

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/devices/zetime/ZeTimeCoordinator.java

@@ -132,6 +132,11 @@ public class ZeTimeCoordinator extends AbstractDeviceCoordinator {
         return false;
     }
 
+    @Override
+    public boolean supportsMusicInfo() {
+        return true;
+    }
+
     @Override
     public int getBondingStyle(GBDevice device) {
         return BONDING_STYLE_NONE;

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/DeviceCommunicationService.java

@@ -639,7 +639,7 @@ public class DeviceCommunicationService extends Service implements SharedPrefere
                 mPebbleReceiver = new PebbleReceiver();
                 registerReceiver(mPebbleReceiver, new IntentFilter("com.getpebble.action.SEND_NOTIFICATION"));
             }
-            if (mMusicPlaybackReceiver == null) {
+            if (mMusicPlaybackReceiver == null && coordinator != null && coordinator.supportsMusicInfo()) {
                 mMusicPlaybackReceiver = new MusicPlaybackReceiver();
                 IntentFilter filter = new IntentFilter();
                 for (String action : mMusicActions) {

app/src/main/java/nodomain/freeyourgadget/gadgetbridge/service/devices/huami/HuamiSupport.java

@@ -58,6 +58,7 @@ import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventCallContro
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventFindPhone;
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventMusicControl;
 import nodomain.freeyourgadget.gadgetbridge.deviceevents.GBDeviceEventVersionInfo;
+import nodomain.freeyourgadget.gadgetbridge.devices.DeviceCoordinator;
 import nodomain.freeyourgadget.gadgetbridge.devices.SampleProvider;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.ActivateDisplayOnLift;
 import nodomain.freeyourgadget.gadgetbridge.devices.huami.HuamiConst;
@@ -114,6 +115,7 @@ import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.operations.Ini
 import nodomain.freeyourgadget.gadgetbridge.service.devices.huami.operations.UpdateFirmwareOperation;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.miband.NotificationStrategy;
 import nodomain.freeyourgadget.gadgetbridge.service.devices.miband.RealtimeSamplesSupport;
+import nodomain.freeyourgadget.gadgetbridge.util.DeviceHelper;
 import nodomain.freeyourgadget.gadgetbridge.util.GB;
 import nodomain.freeyourgadget.gadgetbridge.util.NotificationUtils;
 import nodomain.freeyourgadget.gadgetbridge.util.Prefs;
@@ -732,16 +734,28 @@ public class HuamiSupport extends AbstractBTLEDeviceSupport {
 
     @Override
     public void onSetMusicState(MusicStateSpec stateSpec) {
-        if (bufferMusicStateSpec != stateSpec)
+        DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(gbDevice);
-            bufferMusicStateSpec = stateSpec;
+        if (!coordinator.supportsMusicInfo()) {
-        sendMusicStateToDevice();
+            return;
+        }
 
+        if (bufferMusicStateSpec != stateSpec) {
+            bufferMusicStateSpec = stateSpec;
+        }
+
+        sendMusicStateToDevice();
     }
 
     @Override
     public void onSetMusicInfo(MusicSpec musicSpec) {
-        if (bufferMusicSpec != musicSpec)
+        DeviceCoordinator coordinator = DeviceHelper.getInstance().getCoordinator(gbDevice);
+        if (!coordinator.supportsMusicInfo()) {
+            return;
+        }
+
+        if (bufferMusicSpec != musicSpec) {
             bufferMusicSpec = musicSpec;
+        }
 
         if (!isMusicAppStarted) {
             return;