Demo app: Fix DRM support check for ClearKey

Issue: Issue: #7735
PiperOrigin-RevId: 325900705

RELEASENOTES.md

@@ -23,6 +23,8 @@
 *   IMA extension: Upgrade to IMA SDK 3.19.4, bringing in a fix for setting the
     media load timeout
     ([#7170](https://github.com/google/ExoPlayer/issues/7170)).
+*   Demo app: Fix playback of ClearKey protected content on API level 26 and
+    earlier ([#7735](https://github.com/google/ExoPlayer/issues/7735)).
 
 ### 2.11.7 (2020-06-29) ###
 

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

@@ -17,7 +17,6 @@ package com.google.android.exoplayer2.demo;
 
 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;
@@ -47,6 +46,7 @@ import com.google.android.exoplayer2.drm.ExoMediaCrypto;
 import com.google.android.exoplayer2.drm.FrameworkMediaDrm;
 import com.google.android.exoplayer2.drm.HttpMediaDrmCallback;
 import com.google.android.exoplayer2.drm.MediaDrmCallback;
+import com.google.android.exoplayer2.drm.FrameworkMediaDrm;
 import com.google.android.exoplayer2.mediacodec.MediaCodecRenderer.DecoderInitializationException;
 import com.google.android.exoplayer2.mediacodec.MediaCodecUtil.DecoderQueryException;
 import com.google.android.exoplayer2.offline.DownloadHelper;
@@ -485,7 +485,7 @@ public class PlayerActivity extends AppCompatActivity
       drmSessionManager = DrmSessionManager.getDummyDrmSessionManager();
     } else if (Util.SDK_INT < 18) {
       errorStringId = R.string.error_drm_unsupported_before_api_18;
-    } else if (!MediaDrm.isCryptoSchemeSupported(drmInfo.drmScheme)) {
+    } else if (!FrameworkMediaDrm.isCryptoSchemeSupported(drmInfo.drmScheme)) {
       errorStringId = R.string.error_drm_unsupported_scheme;
     } else {
       MediaDrmCallback mediaDrmCallback =

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

@@ -76,6 +76,15 @@ public final class FrameworkMediaDrm implements ExoMediaDrm<FrameworkMediaCrypto
   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.
    *