Handle new signaling for E-AC3 JOC in DASH

Issue: #6636
PiperOrigin-RevId: 279666771

RELEASENOTES.md

 # Release notes #
 # Release notes #
 
 
+### 2.10.8 (2019-11-18) ###
+
+* Handle new signaling for E-AC3 JOC audio in DASH
+  ([#6636](https://github.com/google/ExoPlayer/issues/6636)).
+
 ### 2.10.7 (2019-11-12) ###
 ### 2.10.7 (2019-11-12) ###
 
 
 * HLS: Fix detection of Dolby Atmos to match the HLS authoring specification.
 * HLS: Fix detection of Dolby Atmos to match the HLS authoring specification.

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

@@ -1417,8 +1417,10 @@ public class DashManifestParser extends DefaultHandler
     for (int i = 0; i < supplementalProperties.size(); i++) {
     for (int i = 0; i < supplementalProperties.size(); i++) {
       Descriptor descriptor = supplementalProperties.get(i);
       Descriptor descriptor = supplementalProperties.get(i);
       String schemeIdUri = descriptor.schemeIdUri;
       String schemeIdUri = descriptor.schemeIdUri;
-      if ("tag:dolby.com,2014:dash:DolbyDigitalPlusExtensionType:2014".equals(schemeIdUri)
-          && "ec+3".equals(descriptor.value)) {
+      if (("tag:dolby.com,2018:dash:EC3_ExtensionComplexityIndex:2018".equals(schemeIdUri)
+              && "JOC".equals(descriptor.value))
+          || ("tag:dolby.com,2014:dash:DolbyDigitalPlusExtensionType:2014".equals(schemeIdUri)
+              && "ec+3".equals(descriptor.value))) {
         return MimeTypes.AUDIO_E_AC3_JOC;
         return MimeTypes.AUDIO_E_AC3_JOC;
       }
       }
     }
     }