From 7fc9c848c6ff7083d7c9b798dd60061360e21eaa Mon Sep 17 00:00:00 2001
From: aquilescanta <aquilescanta@google.com>
Date: Fri, 20 Sep 2019 21:17:53 +0100
Subject: [PATCH] Add prepare and release to DrmSessionManager

The added methods will manage ExoMediaDrms instances.

Issue:#4721
PiperOrigin-RevId: 270335916
---
 .../android/exoplayer2/drm/DrmSessionManager.java | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/library/core/src/main/java/com/google/android/exoplayer2/drm/DrmSessionManager.java b/library/core/src/main/java/com/google/android/exoplayer2/drm/DrmSessionManager.java
index 457b1630c8..46f9458408 100644
--- a/library/core/src/main/java/com/google/android/exoplayer2/drm/DrmSessionManager.java
+++ b/library/core/src/main/java/com/google/android/exoplayer2/drm/DrmSessionManager.java
@@ -78,6 +78,21 @@ public interface DrmSessionManager<T extends ExoMediaCrypto> {
    */
   int FLAG_PLAY_CLEAR_SAMPLES_WITHOUT_KEYS = 1;
 
+  /**
+   * Acquires any required resources.
+   *
+   * <p>{@link #release()} must be called to ensure the acquired resources are released. After
+   * releasing, an instance may be re-prepared.
+   */
+  default void prepare() {
+    // Do nothing.
+  }
+
+  /** Releases any acquired resources. */
+  default void release() {
+    // Do nothing.
+  }
+
   /**
    * Returns whether the manager is capable of acquiring a session for the given
    * {@link DrmInitData}.