Respect the preload-none option

Don’t start downloading segments if preload is set to “none”

@@ -143,9 +143,6 @@ videojs.Hls.prototype.src = function(src) {
 
 
     setupEvents = function() {
     setupEvents = function() {
       this.fillBuffer();
       this.fillBuffer();
-
-
-
       player.trigger('loadedmetadata');
       player.trigger('loadedmetadata');
     };
     };
 
 
@@ -558,6 +555,11 @@ videojs.Hls.prototype.fillBuffer = function(offset) {
     segment,
     segment,
     segmentUri;
     segmentUri;
 
 
+  // if preload is set to "none", do not download segments until playback is requested
+  if (!player.hasClass('vjs-has-started') && player.options.preload === "none") {
+    return;
+  }
+
   // if a video has not been specified, do nothing
   // if a video has not been specified, do nothing
   if (!player.currentSrc() || !this.playlists) {
   if (!player.currentSrc() || !this.playlists) {
     return;
     return;

@@ -2299,4 +2299,29 @@ test('live stream should not call endOfStream', function(){
         "media source should be in open state, not ended state for live stream after the last segment in m3u8 downloaded");
         "media source should be in open state, not ended state for live stream after the last segment in m3u8 downloaded");
 });
 });
 
 
+test('does not download segments if preload option set to none', function() {
+  var loadedSegments = 0;
+  player.src({
+    src: 'master.m3u8',
+    type: 'application/vnd.apple.mpegurl'
+  });
+
+  player.options.preload = "none";
+
+  player.hls.loadSegment = function () {
+    loadedSegments++;
+  };
+
+  player.currentSrc = function() {
+    return player.src;
+  };
+
+  openMediaSource(player);
+  standardXHRResponse(requests.shift()); // master
+  standardXHRResponse(requests.shift()); // media
+  player.hls.checkBuffer_();
+
+  strictEqual(loadedSegments, 0, 'did not download any segments');
+});
+
 })(window, window.videojs);
 })(window, window.videojs);