Merge pull request #10322 from DolbyLaboratories:dev-v2-multichannel

PiperOrigin-RevId: 454641746

library/common/src/main/java/com/google/android/exoplayer2/util/Util.java

@@ -1666,6 +1666,10 @@ public final class Util {
           // 8 ch output is not supported before Android L.
           return AudioFormat.CHANNEL_INVALID;
         }
+      case 12:
+        return Util.SDK_INT >= 32
+            ? AudioFormat.CHANNEL_OUT_7POINT1POINT4
+            : AudioFormat.CHANNEL_INVALID;
       default:
         return AudioFormat.CHANNEL_INVALID;
     }