Retrieve Extended Tracks Data from Streaming Server

src/TizenVideo/TizenVideo.js

@@ -3,6 +3,7 @@ var cloneDeep = require('lodash.clonedeep');
 var deepFreeze = require('deep-freeze');
 var Color = require('color');
 var ERROR = require('../error');
+var getTracksData = require('../tracksData');
 
 function TizenVideo(options) {
     options = options || {};
@@ -148,6 +149,24 @@ function TizenVideo(options) {
         playbackSpeed: false
     };
 
+    var gotTraktData = false;
+    var tracksData = { audio: [], subs: [] };
+
+    function retrieveExtendedTracks() {
+        if (!gotTraktData && stream !== null) {
+            gotTraktData = true;
+            getTracksData(stream.url, function(resp) {
+                tracksData = resp;
+                if (((tracksData || {}).subs || []).length) {
+                    onPropChanged('subtitlesTracks');
+                }
+                if (((tracksData || {}).audio || []).length) {
+                    onPropChanged('audioTracks');
+                }
+            });
+        }
+    }
+
     function getProp(propName) {
         switch (propName) {
             case 'stream': {
@@ -213,6 +232,14 @@ function TizenVideo(options) {
                             extra = JSON.parse(textTrack.extra_info);
                         } catch(e) {}
                         var textTrackLang = typeof extra.track_lang === 'string' && extra.track_lang.length > 0 ? extra.track_lang.trim() : null;
+                        if (((tracksData || {}).subs || []).length) {
+                            var extendedTrackData = tracksData.subs.find(function(el) {
+                                return (el || {})['StreamOrder'] === textTrack.index;
+                            });
+                            if ((extendedTrackData || {})['Language']) {
+                                textTrackLang = extendedTrackData['Language'];
+                            }
+                        }
                         textTracks.push({
                             id: textTrackId,
                             lang: textTrackLang,
@@ -307,6 +334,14 @@ function TizenVideo(options) {
                             extra = JSON.parse(audioTrack.extra_info);
                         } catch(e) {}
                         var audioTrackLang = typeof extra.language === 'string' && extra.language.length > 0 ? extra.language : null;
+                        if (((tracksData || {}).audio || []).length) {
+                            var extendedTrackData = tracksData.audio.find(function(el) {
+                                return (el || {})['StreamOrder'] === audioTrack.index;
+                            });
+                            if ((extendedTrackData || {})['Language']) {
+                                audioTrackLang = extendedTrackData['Language'];
+                            }
+                        }
                         audioTracks.push({
                             id: audioTrackId,
                             lang: audioTrackLang,
@@ -581,6 +616,16 @@ function TizenVideo(options) {
                     }
                     onPropChanged('buffering');
 
+                    var tizenVersion = false;
+
+                    try {
+                        tizenVersion = parseFloat(global.tizen.systeminfo.getCapability('http://tizen.org/feature/platform.version'));
+                    } catch(e) {}
+
+                    if (!tizenVersion || tizenVersion >= 6) {
+                        retrieveExtendedTracks();
+                    }
+
                     window.webapis.avplay.open(stream.url);
                     window.webapis.avplay.setDisplayRect(0, 0, window.innerWidth, window.innerHeight);
                     window.webapis.avplay.setDisplayMethod('PLAYER_DISPLAY_MODE_LETTER_BOX');

src/tracksData.js

@@ -0,0 +1,17 @@
+module.exports = function(url, cb) {
+    fetch('http://127.0.0.1:11470/tracks/'+encodeURIComponent(url)).then(function(resp) {
+        resp.json().then(function(tracks) {
+            var audioTracks = tracks.filter(function(el) { return el['@type'] === 'Audio'; });
+            var subsTracks = tracks.filter(function(el) { return el['@type'] === 'Text'; });
+            cb({ audio: audioTracks, subs: subsTracks });
+        }).catch(function(err) {
+            // eslint-disable-next-line no-console
+            console.error(err);
+            cb({ audio: [], subs: [] });
+        });
+    }).catch(function(err) {
+        // eslint-disable-next-line no-console
+        console.error(err);
+        cb({ audio: [], subs: [] });
+    });
+};