myplayer/patches/mediaelement-plugins/01-playlist.js.diff

diff --git a/src/playlist/playlist.js b/src/playlist/playlist.js
index 82112fb..bf39681 100644
--- a/src/playlist/playlist.js
+++ b/src/playlist/playlist.js
@@ -81,10 +81,11 @@ Object.assign(MediaElementPlayer.prototype, {
 
 		player.endedCallback = () => {
 			if (player.currentPlaylistItem < player.listItems.length) {
-				player.setSrc(player.playlist[++player.currentPlaylistItem]);
+				player.setSrc(player.playlist[++player.currentPlaylistItem].src);
 				player.load();
 				setTimeout(() => {
-					player.play();
+					var _promise = player.play();
+                    console.log("play() returned promise at 'player.endedCallback': ", _promise);
 				}, 200);
 			}
 		};
@@ -172,7 +173,17 @@ Object.assign(MediaElementPlayer.prototype, {
 					player.currentPlaylistItem = this.getAttribute('data-playlist-index');
 					player.setSrc(this.value);
 					player.load();
-					player.play();
+                    var isPlaying = player.media.currentTime > 0 && !player.media.paused && !player.media.ended && player.media.readyState > player.media.HAVE_CURRENT_DATA;
+                    if(isPlaying) {
+                        console.log("play() at 'inputs[i].addEventListener' not executed, because media is already playing");
+                    }
+                    else {
+                        var _promise = player.play();
+                        console.log("play() returned promise at 'inputs[i].addEventListener': ", _promise);
+                        _promise.catch((error) => {
+                            console.error(error);
+                        });
+                    }
 
 					if (player.isVideo && player.options.autoClosePlaylist === true) {
 						mejs.Utils.toggleClass(player.playlistLayer, `${player.options.classPrefix}playlist-hidden`);
@@ -224,7 +235,8 @@ Object.assign(MediaElementPlayer.prototype, {
 			if (player.playlist[--player.currentPlaylistItem]) {
 				player.setSrc(player.playlist[player.currentPlaylistItem].src);
 				player.load();
-				player.play();
+				var _promise = player.play();
+                console.log("play() returned promise at 'player.prevPlaylistCallback': ", _promise);
 			} else {
 				++player.currentPlaylistItem;
 			}
@@ -249,7 +261,8 @@ Object.assign(MediaElementPlayer.prototype, {
 			if (player.playlist[++player.currentPlaylistItem]) {
 				player.setSrc(player.playlist[player.currentPlaylistItem].src);
 				player.load();
-				player.play();
+				var _promise = player.play();
+                console.log("play() returned promise at 'player.nextPlaylistCallback': ", _promise);
 			} else {
 				--player.currentPlaylistItem;
 			}
@@ -312,7 +325,8 @@ Object.assign(MediaElementPlayer.prototype, {
 				if (playedItems.indexOf(randomItem) === -1) {
 					player.setSrc(player.playlist[randomItem].src);
 					player.load();
-					player.play();
+					var _promise = player.play();
+                    console.log("play() returned promise at 'randomizeCallback': ", _promise);
 					player.currentPlaylistItem = randomItem;
 					playedItems.push(randomItem);