content: /*
   * Copyright (C) 2016 The Android Open Source Project
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.google.android.exoplayer2.drm;
  
  import com.google.android.exoplayer2.drm.ExoMediaDrm.KeyRequest;
  import com.google.android.exoplayer2.drm.ExoMediaDrm.ProvisionRequest;
  import java.util.UUID;
  
  /**
   * Performs {@link ExoMediaDrm} key and provisioning requests.
   */
  public interface MediaDrmCallback {
  
    /**
     * Executes a provisioning request.
     *
     * @param uuid The UUID of the content protection scheme.
     * @param request The request.
     * @return The response data.
     * @throws Exception If an error occurred executing the request.
     */
    byte[] executeProvisionRequest(UUID uuid, ProvisionRequest request) throws Exception;
  
    /**
     * Executes a key request.
     *
     * @param uuid The UUID of the content protection scheme.
     * @param request The request.
     * @return The response data.
     * @throws Exception If an error occurred executing the request.
     */
    byte[] executeKeyRequest(UUID uuid, KeyRequest request) throws Exception;
  
  }
  