Merge pull request #11061 from cedricxperi:dts-udts-support

PiperOrigin-RevId: 517067549
(cherry picked from commit 49d85d6)

Author: rohitjoins

libraries/extractor/src/main/java/androidx/media3/extractor/mp4/Atom.java

@@ -176,6 +176,9 @@
   @SuppressWarnings("ConstantCaseForConstants")
   public static final int TYPE_ddts = 0x64647473;
 
+  @SuppressWarnings("ConstantCaseForConstants")
+  public static final int TYPE_udts = 0x75647473;
+
   @SuppressWarnings("ConstantCaseForConstants")
   public static final int TYPE_tfdt = 0x74666474;
 

libraries/extractor/src/main/java/androidx/media3/extractor/mp4/AtomParsers.java

@@ -1560,7 +1560,7 @@ private static void parseAudioSampleEntry(
         // because these streams can carry simultaneously multiple representations of the same
         // audio. Use stereo by default.
         channelCount = 2;
-      } else if (childAtomType == Atom.TYPE_ddts) {
+      } else if (childAtomType == Atom.TYPE_ddts || childAtomType == Atom.TYPE_udts) {
         out.format =
             new Format.Builder()
                 .setId(trackId)