Embed:

- updated videojs and dashjs
- combo selection algorithm now tries to find maximum simultracks
- when requesting stream info, add ?metaeverywhere=1 to the url to not count meta/subtitle tracks to simul_tracks and source priority sorting
- updated videojs, dashjs and hlsjs players
- improved html5 codec support testing
- urlappend: improved behaviour when url already contains search params

embed/wrappers/dashjs.js

@@ -19,22 +19,49 @@ mistplayers.dashjs = {
       return false;
     }
 
-    var codecs = {};
+    if (!("MediaSource" in window)) { return false; }
+    if (!MediaSource.isTypeSupported) { return true; } //we can't ask, but let's assume something will work
+
+    //check if both audio and video have at least one playable track
+    //gather track types and codec strings
+    var playabletracks = {};
+    var hassubtitles = false;
     for (var i in MistVideo.info.meta.tracks) {
-      if (MistVideo.info.meta.tracks[i].type != "meta") {
-        codecs[MistVideo.info.meta.tracks[i].codec] = 1;
+      if (MistVideo.info.meta.tracks[i].type == "meta") {
+        if (MistVideo.info.meta.tracks[i].codec == "subtitle") { hassubtitles = true; }
+        continue;
       }
-    }
-    codecs = MistUtil.object.keys(codecs);
-    //if there's a h265 track, remove it from the list of codecs
-    for (var i = codecs.length-1; i >= 0; i--) {
-      if (codecs[i].substr(0,4) == "HEVC") {
-        codecs.splice(i,1);
+      if (!(MistVideo.info.meta.tracks[i].type in playabletracks)) {
+        playabletracks[MistVideo.info.meta.tracks[i].type] = {};
       }
+      playabletracks[MistVideo.info.meta.tracks[i].type][MistUtil.tracks.translateCodec(MistVideo.info.meta.tracks[i])] = 1;
     }
-    if (codecs.length < source.simul_tracks) { return false; } //if there's no longer enough playable tracks, skip this player
     
-    return ("MediaSource" in window);
+    var tracktypes = [];
+    for (var type in playabletracks) {
+      var playable = false;
+
+      for (var codec in playabletracks[type]) {
+        if (MediaSource.isTypeSupported("video/mp4;codecs=\""+codec+"\"")) {
+          playable = true;
+          break;
+        }
+      }
+      if (playable) {
+        tracktypes.push(type);
+      }
+    }
+    if (hassubtitles) {
+      //there is a subtitle track, check if there is a webvtt source
+      for (var i in MistVideo.info.source) {
+        if (MistVideo.info.source[i].type == "html5/text/vtt") {
+          tracktypes.push("subtitle");
+          break;
+        }
+      }
+    }
+    
+    return tracktypes.length ? tracktypes : false;
   },
   player: function(){this.onreadylist = [];},
   scriptsrc: function(host) { return host+"/dashjs.js"; }