Merge pull request #4391 from kaltura/add-label

Add label attribute support for DASH audio/text

library/dash/src/main/java/com/google/android/exoplayer2/source/dash/manifest/DashManifestParser.java

@@ -248,6 +248,7 @@ public class DashManifestParser extends DefaultHandler
     int audioSamplingRate = parseInt(xpp, "audioSamplingRate", Format.NO_VALUE);
     String language = xpp.getAttributeValue(null, "lang");
     String drmSchemeType = null;
+    String label = xpp.getAttributeValue(null, "label");
     ArrayList<SchemeData> drmSchemeDatas = new ArrayList<>();
     ArrayList<Descriptor> inbandEventStreams = new ArrayList<>();
     ArrayList<Descriptor> accessibilityDescriptors = new ArrayList<>();
@@ -285,7 +286,7 @@ public class DashManifestParser extends DefaultHandler
       } else if (XmlPullParserUtil.isStartTag(xpp, "Representation")) {
         RepresentationInfo representationInfo = parseRepresentation(xpp, baseUrl, mimeType, codecs,
             width, height, frameRate, audioChannels, audioSamplingRate, language,
-            selectionFlags, accessibilityDescriptors, segmentBase);
+            selectionFlags, accessibilityDescriptors, segmentBase, label);
         contentType = checkContentTypeConsistency(contentType,
             getContentType(representationInfo.format));
         representationInfos.add(representationInfo);
@@ -457,7 +458,7 @@ public class DashManifestParser extends DefaultHandler
       int adaptationSetHeight, float adaptationSetFrameRate, int adaptationSetAudioChannels,
       int adaptationSetAudioSamplingRate, String adaptationSetLanguage,
       @C.SelectionFlags int adaptationSetSelectionFlags,
-      List<Descriptor> adaptationSetAccessibilityDescriptors, SegmentBase segmentBase)
+      List<Descriptor> adaptationSetAccessibilityDescriptors, SegmentBase segmentBase, String label)
       throws XmlPullParserException, IOException {
     String id = xpp.getAttributeValue(null, "id");
     int bandwidth = parseInt(xpp, "bandwidth", Format.NO_VALUE);
@@ -507,7 +508,7 @@ public class DashManifestParser extends DefaultHandler
 
     Format format = buildFormat(id, mimeType, width, height, frameRate, audioChannels,
         audioSamplingRate, bandwidth, adaptationSetLanguage, adaptationSetSelectionFlags,
-        adaptationSetAccessibilityDescriptors, codecs, supplementalProperties);
+        adaptationSetAccessibilityDescriptors, codecs, supplementalProperties, label);
     segmentBase = segmentBase != null ? segmentBase : new SingleSegmentBase();
 
     return new RepresentationInfo(format, baseUrl, segmentBase, drmSchemeType, drmSchemeDatas,
@@ -517,7 +518,7 @@ public class DashManifestParser extends DefaultHandler
   protected Format buildFormat(String id, String containerMimeType, int width, int height,
       float frameRate, int audioChannels, int audioSamplingRate, int bitrate, String language,
       @C.SelectionFlags int selectionFlags, List<Descriptor> accessibilityDescriptors,
-      String codecs, List<Descriptor> supplementalProperties) {
+      String codecs, List<Descriptor> supplementalProperties, String label) {
     String sampleMimeType = getSampleMimeType(containerMimeType, codecs);
     if (sampleMimeType != null) {
       if (MimeTypes.AUDIO_E_AC3.equals(sampleMimeType)) {
@@ -528,7 +529,7 @@ public class DashManifestParser extends DefaultHandler
             bitrate, width, height, frameRate, null, selectionFlags);
       } else if (MimeTypes.isAudio(sampleMimeType)) {
         return Format.createAudioContainerFormat(id, containerMimeType, sampleMimeType, codecs,
-            bitrate, audioChannels, audioSamplingRate, null, selectionFlags, language);
+            bitrate, audioChannels, audioSamplingRate, null, selectionFlags, language, label);
       } else if (mimeTypeIsRawText(sampleMimeType)) {
         int accessibilityChannel;
         if (MimeTypes.APPLICATION_CEA608.equals(sampleMimeType)) {
@@ -539,7 +540,7 @@ public class DashManifestParser extends DefaultHandler
           accessibilityChannel = Format.NO_VALUE;
         }
         return Format.createTextContainerFormat(id, containerMimeType, sampleMimeType, codecs,
-            bitrate, selectionFlags, language, accessibilityChannel);
+            bitrate, selectionFlags, language, accessibilityChannel, label);
       }
     }
     return Format.createContainerFormat(id, containerMimeType, sampleMimeType, codecs, bitrate,

library/hls/src/main/java/com/google/android/exoplayer2/source/hls/playlist/HlsPlaylistParser.java

@@ -295,7 +295,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
           String sampleMimeType = codecs != null ? MimeTypes.getMediaMimeType(codecs) : null;
           format = Format.createAudioContainerFormat(id, MimeTypes.APPLICATION_M3U8, sampleMimeType,
               codecs, Format.NO_VALUE, Format.NO_VALUE, Format.NO_VALUE, null, selectionFlags,
-              language);
+              language, id);
           if (uri == null) {
             muxedAudioFormat = format;
           } else {
@@ -304,7 +304,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
           break;
         case TYPE_SUBTITLES:
           format = Format.createTextContainerFormat(id, MimeTypes.APPLICATION_M3U8,
-              MimeTypes.TEXT_VTT, null, Format.NO_VALUE, selectionFlags, language);
+              MimeTypes.TEXT_VTT, null, Format.NO_VALUE, selectionFlags, language, id);
           subtitles.add(new HlsMasterPlaylist.HlsUrl(uri, format));
           break;
         case TYPE_CLOSED_CAPTIONS:
@@ -322,7 +322,7 @@ public final class HlsPlaylistParser implements ParsingLoadable.Parser<HlsPlayli
             muxedCaptionFormats = new ArrayList<>();
           }
           muxedCaptionFormats.add(Format.createTextContainerFormat(id, null, mimeType, null,
-              Format.NO_VALUE, selectionFlags, language, accessibilityChannel));
+              Format.NO_VALUE, selectionFlags, language, accessibilityChannel, id));
           break;
         default:
           // Do nothing.

library/smoothstreaming/src/main/java/com/google/android/exoplayer2/source/smoothstreaming/manifest/SsManifestParser.java

@@ -603,6 +603,7 @@ public class SsManifestParser implements ParsingLoadable.Parser<SsManifest> {
     private static final String KEY_FOUR_CC = "FourCC";
     private static final String KEY_TYPE = "Type";
     private static final String KEY_LANGUAGE = "Language";
+    private static final String KEY_NAME = "Name";
     private static final String KEY_MAX_WIDTH = "MaxWidth";
     private static final String KEY_MAX_HEIGHT = "MaxHeight";
 
@@ -637,12 +638,14 @@ public class SsManifestParser implements ParsingLoadable.Parser<SsManifest> {
               CodecSpecificDataUtil.buildAacLcAudioSpecificConfig(samplingRate, channels));
         }
         String language = (String) getNormalizedAttribute(KEY_LANGUAGE);
+        String label = (String) getNormalizedAttribute(KEY_NAME);
         format = Format.createAudioContainerFormat(id, MimeTypes.AUDIO_MP4, sampleMimeType, null,
-            bitrate, channels, samplingRate, codecSpecificData, 0, language);
+            bitrate, channels, samplingRate, codecSpecificData, 0, language, label);
       } else if (type == C.TRACK_TYPE_TEXT) {
         String language = (String) getNormalizedAttribute(KEY_LANGUAGE);
+        String label = (String) getNormalizedAttribute(KEY_NAME);
         format = Format.createTextContainerFormat(id, MimeTypes.APPLICATION_MP4, sampleMimeType,
-            null, bitrate, 0, language);
+            null, bitrate, 0, language, label);
       } else {
         format = Format.createContainerFormat(id, MimeTypes.APPLICATION_MP4, sampleMimeType, null,
             bitrate, 0, null);

library/ui/src/main/java/com/google/android/exoplayer2/ui/DefaultTrackNameProvider.java

@@ -88,6 +88,9 @@ public class DefaultTrackNameProvider implements TrackNameProvider {
   }
 
   private String buildLanguageString(Format format) {
+    if ( !TextUtils.isEmpty(format.label) ){
+      return format.label;
+    }
     String language = format.language;
     return TextUtils.isEmpty(language) || C.LANGUAGE_UNDETERMINED.equals(language)
         ? ""