Filter internal delay D-Bus signals

Only emit D-Bus delay signal for internal processing delays if the
change is >= 10ms

src/ba-transport-pcm.c

@@ -783,16 +783,17 @@ int ba_transport_pcm_delay_sync(struct ba_transport_pcm *pcm, unsigned int updat
 
 		}
 	}
-	else {
-		if (pcm->mode == BA_TRANSPORT_PCM_MODE_SINK &&
-				update_mask == BA_DBUS_PCM_UPDATE_DELAY) {
+
+	/* If the remote device does not provide delay update reports we can still
+	 * inform local D-Bus clients of our internal processing delay. */
+	if ((t->profile & BA_TRANSPORT_PROFILE_MASK_A2DP) == 0 ||
+				!t->a2dp.delay_reporting) {
+
+		if (update_mask == BA_DBUS_PCM_UPDATE_DELAY) {
+
 			/* To avoid creating a flood of dbus signals, we only notify clients
 			 * when the codec + processing value changes by more than 10ms */
-			unsigned int delay = 0;
-			if (t->profile == BA_TRANSPORT_PROFILE_A2DP_SOURCE)
-				delay += t->a2dp.delay;
-
-			delay += t->pcm->codec_delay_dms + pcm->processing_delay_dms;
+			unsigned int delay = pcm->codec_delay_dms + pcm->processing_delay_dms;
 			unsigned int diff = delay >= pcm->reported_codec_delay_dms ?
 					delay - pcm->reported_codec_delay_dms :
 					pcm->reported_codec_delay_dms - delay;