chapter downloading fixes

dashboard-ui/scripts/mediaplayer-video.js

@@ -36,6 +36,16 @@
             return video;
         };
 
+        self.getCurrentSubtitleStream = function () {
+            return self.getSubtitleStream(self.currentSubtitleStreamIndex);
+        };
+
+        self.getSubtitleStream = function (index) {
+            return self.currentMediaSource.MediaStreams.filter(function (s) {
+                return s.Type == 'Subtitle' && s.Index == index;
+            })[0];
+        };
+
         self.remoteFullscreen = function () {
 
             var videoControls = $("#videoControls");
@@ -151,7 +161,62 @@
         };
 
         self.setSubtitleStreamIndex = function (index) {
+
+            if (!self.supportsTextTracks()) {
                 self.changeStream(self.getCurrentTicks(), { SubtitleStreamIndex: index });
+                self.currentSubtitleStreamIndex = index;
+                return;
+            }
+
+            var currentStream = self.getCurrentSubtitleStream();
+
+            var newStream = self.getSubtitleStream(index);
+
+            if (!currentStream && !newStream) return;
+
+            var selectedTrackElementIndex = -1;
+
+            if (currentStream && !newStream) {
+
+                if (!currentStream.IsTextSubtitleStream) {
+
+                    // Need to change the transcoded stream to remove subs
+                    self.changeStream(self.getCurrentTicks(), { SubtitleStreamIndex: -1 });
+                }
+            }
+            else if (!currentStream && newStream) {
+
+                if (newStream.IsTextSubtitleStream) {
+                    selectedTrackElementIndex = index;
+                } else {
+
+                    // Need to change the transcoded stream to add subs
+                    self.changeStream(self.getCurrentTicks(), { SubtitleStreamIndex: index });
+                }
+            }
+
+            self.setCurrentTrackElement(selectedTrackElementIndex);
+            self.currentSubtitleStreamIndex = index;
+        };
+
+        self.setCurrentTrackElement = function (index) {
+
+            var textStreams = self.currentMediaSource.MediaStreams.filter(function (s) {
+                return s.Type == 'Subtitle' && s.IsTextSubtitleStream;
+            });
+
+            var allTracks = video.textTracks; // get list of tracks
+
+            for (var i = 0; i < allTracks.length; i++) {
+
+                var trackIndex = textStreams[i].Index;
+
+                if (trackIndex == index) {
+                    allTracks[i].mode = "showing"; // show this track
+                } else {
+                    allTracks[i].mode = "disabled"; // hide all other tracks
+                }
+            }
         };
 
         $(document).on('webkitfullscreenchange mozfullscreenchange fullscreenchange', function (e) {
@@ -532,7 +597,7 @@
                 return currentStream.Type == "Subtitle";
             });
 
-            var currentIndex = self.currentSubtitleStreamIndex;
+            var currentIndex = self.currentSubtitleStreamIndex || -1;
 
             var html = '';
 
@@ -742,7 +807,7 @@
                 mediaSourceId: mediaSource.Id
             };
 
-            if (selectedSubtitleStream && !selectedSubtitleStream.IsTextSubtitleStream) {
+            if (selectedSubtitleStream && (!selectedSubtitleStream.IsTextSubtitleStream || !self.supportsTextTracks())) {
                 baseParams.SubtitleStreamIndex = mediaSource.DefaultSubtitleStreamIndex;
             }
 
@@ -842,6 +907,7 @@
 
             html += '<source type="video/mp4" src="' + mp4VideoUrl + '" />';
 
+            if (self.supportsTextTracks()) {
                 var textStreams = subtitleStreams.filter(function (s) {
                     return s.IsTextSubtitleStream;
                 });
@@ -854,7 +920,8 @@
 
                     var defaultAttribute = i.Index == mediaSource.DefaultSubtitleStreamIndex ? ' default' : '';
 
-                html += '<track data-index="' + textStream.Index + '" kind="subtitles" src="' + textStreamUrl + '" srclang="' + (textStream.Language || 'und') + '"' + defaultAttribute + '>';
+                    html += '<track kind="subtitles" src="' + textStreamUrl + '" srclang="' + (textStream.Language || 'und') + '"' + defaultAttribute + '>';
+                }
             }
 
             html += '</video>';

dashboard-ui/scripts/mediaplayer.js

@@ -218,6 +218,17 @@
             $(self).trigger('positionchange', [state]);
         };
 
+        self.supportsTextTracks = function () {
+
+            // Does not support changing tracks via mode property
+            if ($.browser.mozilla) {
+                return false;
+            }
+
+            // For now, until perfected
+            return false;
+        };
+
         self.canPlayVideoDirect = function (mediaSource, videoStream, audioStream, subtitleStream, maxWidth, bitrate) {
 
             if (!mediaSource) {
@@ -243,7 +254,7 @@
                 return false;
             }
 
-            if (subtitleStream && subtitleStream.IsGraphicalSubtitleStream) {
+            if (subtitleStream && (subtitleStream.IsGraphicalSubtitleStream || !self.supportsTextTracks())) {
                 console.log('Transcoding because subtitles are required');
                 return false;
             }