Add DRM protected content to the Cast demo APP

Allows testing DRM-protected content in the receiver app.

Includes the DRM-related data to the media items, but does not
add support for DRM content in the local player yet.

PiperOrigin-RevId: 229932329

demos/cast/src/main/java/com/google/android/exoplayer2/castdemo/DemoUtil.java

@@ -15,10 +15,14 @@
  */
 package com.google.android.exoplayer2.castdemo;
 
+import android.net.Uri;
+import android.support.annotation.Nullable;
+import com.google.android.exoplayer2.C;
 import com.google.android.exoplayer2.util.MimeTypes;
 import java.util.ArrayList;
 import java.util.Collections;
 import java.util.List;
+import java.util.UUID;
 
 /** Utility methods and constants for the Cast demo application. */
 /* package */ final class DemoUtil {
@@ -32,6 +36,16 @@ import java.util.List;
     public final String name;
     /** The mime type of the sample media content. */
     public final String mimeType;
+    /**
+     * The {@link UUID} of the DRM scheme that protects the content, or null if the content is not
+     * DRM-protected.
+     */
+    @Nullable public final UUID drmSchemeUuid;
+    /**
+     * The url from which players should obtain DRM licenses, or null if the content is not
+     * DRM-protected.
+     */
+    @Nullable public final Uri licenseServerUri;
 
     /**
      * @param uri See {@link #uri}.
@@ -39,9 +53,21 @@ import java.util.List;
      * @param mimeType See {@link #mimeType}.
      */
     public Sample(String uri, String name, String mimeType) {
+      this(uri, name, mimeType, /* drmSchemeUuid= */ null, /* licenseServerUriString= */ null);
+    }
+
+    public Sample(
+        String uri,
+        String name,
+        String mimeType,
+        @Nullable UUID drmSchemeUuid,
+        @Nullable String licenseServerUriString) {
       this.uri = uri;
       this.name = name;
       this.mimeType = mimeType;
+      this.drmSchemeUuid = drmSchemeUuid;
+      this.licenseServerUri =
+          licenseServerUriString != null ? Uri.parse(licenseServerUriString) : null;
     }
 
     @Override
@@ -65,22 +91,23 @@ import java.util.List;
     samples.add(
         new Sample(
             "https://storage.googleapis.com/wvmedia/clear/h264/tears/tears.mpd",
-            "DASH (clear,MP4,H264)",
+            "Clear DASH: Tears",
             MIME_TYPE_DASH));
     samples.add(
         new Sample(
             "https://commondatastorage.googleapis.com/gtv-videos-bucket/CastVideos/"
                 + "hls/TearsOfSteel.m3u8",
-            "Tears of Steel (HLS)",
+            "Clear HLS: Tears of Steel",
             MIME_TYPE_HLS));
     samples.add(
         new Sample(
             "https://devstreaming-cdn.apple.com/videos/streaming/examples/bipbop_4x3"
                 + "/bipbop_4x3_variant.m3u8",
-            "HLS Basic (TS)",
+            "Clear HLS: Basic 4x3",
             MIME_TYPE_HLS));
     samples.add(
-        new Sample("https://html5demos.com/assets/dizzy.mp4", "Dizzy (MP4)", MIME_TYPE_VIDEO_MP4));
+        new Sample(
+            "https://html5demos.com/assets/dizzy.mp4", "Clear MP4: Dizzy", MIME_TYPE_VIDEO_MP4));
     SAMPLES = Collections.unmodifiableList(samples);
   }
 

demos/cast/src/main/java/com/google/android/exoplayer2/castdemo/MainActivity.java

@@ -42,6 +42,7 @@ import com.google.android.gms.cast.CastMediaControlIntent;
 import com.google.android.gms.cast.framework.CastButtonFactory;
 import com.google.android.gms.cast.framework.CastContext;
 import com.google.android.gms.dynamite.DynamiteModule;
+import java.util.Collections;
 
 /**
  * An activity that plays video using {@link SimpleExoPlayer} and supports casting using ExoPlayer's
@@ -182,13 +183,18 @@ public class MainActivity extends AppCompatActivity
     sampleList.setOnItemClickListener(
         (parent, view, position, id) -> {
           DemoUtil.Sample sample = DemoUtil.SAMPLES.get(position);
-          playerManager.addItem(
-              mediaItemBuilder
-                  .clear()
-                  .setMedia(sample.uri)
-                  .setTitle(sample.name)
-                  .setMimeType(sample.mimeType)
-                  .build());
+          mediaItemBuilder
+              .clear()
+              .setMedia(sample.uri)
+              .setTitle(sample.name)
+              .setMimeType(sample.mimeType);
+          if (sample.drmSchemeUuid != null) {
+            mediaItemBuilder.setDrmSchemes(
+                Collections.singletonList(
+                    new MediaItem.DrmScheme(
+                        sample.drmSchemeUuid, new MediaItem.UriBundle(sample.licenseServerUri))));
+          }
+          playerManager.addItem(mediaItemBuilder.build());
           mediaQueueListAdapter.notifyItemInserted(playerManager.getMediaQueueSize() - 1);
         });
     return dialogList;