Demo app: Fix DRM support check for ClearKey

Issue: Issue: #7735
PiperOrigin-RevId: 325900705

RELEASENOTES.md

@@ -282,6 +282,8 @@
     *   Removed support for media tunneling
     *   Removed support for random ABR (random track selection)
     *   Removed support for playing back in spherical stereo mode
+    *   Fix playback of ClearKey protected content on API level 26 and earlier
+        ([#7735](https://github.com/google/ExoPlayer/issues/7735)).
 *   Add Guava dependency.
 
 ### 2.11.7 (2020-06-29) ###

demos/main/src/main/java/com/google/android/exoplayer2/demo/PlayerActivity.java

@@ -19,7 +19,6 @@ import static com.google.android.exoplayer2.util.Assertions.checkNotNull;
 
 import android.content.Intent;
 import android.content.pm.PackageManager;
-import android.media.MediaDrm;
 import android.net.Uri;
 import android.os.Bundle;
 import android.util.Pair;
@@ -41,6 +40,7 @@ import com.google.android.exoplayer2.Player;
 import com.google.android.exoplayer2.RenderersFactory;
 import com.google.android.exoplayer2.SimpleExoPlayer;
 import com.google.android.exoplayer2.audio.AudioAttributes;
+import com.google.android.exoplayer2.drm.FrameworkMediaDrm;
 import com.google.android.exoplayer2.ext.ima.ImaAdsLoader;
 import com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.DecoderInitializationException;
 import com.google.android.exoplayer2.mediacodec.MediaCodecUtil.DecoderQueryException;
@@ -346,7 +346,7 @@ public class PlayerActivity extends AppCompatActivity
           showToast(R.string.error_drm_unsupported_before_api_18);
           finish();
           return Collections.emptyList();
-        } else if (!MediaDrm.isCryptoSchemeSupported(drmConfiguration.uuid)) {
+        } else if (!FrameworkMediaDrm.isCryptoSchemeSupported(drmConfiguration.uuid)) {
           showToast(R.string.error_drm_unsupported_scheme);
           finish();
           return Collections.emptyList();

library/core/src/main/java/com/google/android/exoplayer2/drm/FrameworkMediaDrm.java

@@ -74,6 +74,15 @@ public final class FrameworkMediaDrm implements ExoMediaDrm {
   private int referenceCount;
 
   /**
+   * Returns whether the DRM scheme with the given UUID is supported on this device.
+   *
+   * @see MediaDrm#isCryptoSchemeSupported(UUID)
+   */
+  public static boolean isCryptoSchemeSupported(UUID uuid) {
+    return MediaDrm.isCryptoSchemeSupported(adjustUuid(uuid));
+  }
+
+  /**
    * Creates an instance with an initial reference count of 1. {@link #release()} must be called on
    * the instance when it's no longer required.
    *