xref: /aosp_15_r20/hardware/interfaces/drm/1.4/IDrmFactory.hal (revision 4d7e907c777eeecc4c5bd7cf640a754fac206ff7)

/*
 * Copyright (C) 2021 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 [email protected];

import @1.3::IDrmFactory;

/**
 * IDrmFactory is the main entry point for interacting with a vendor's
 * drm HAL to create drm plugin instances. A drm plugin instance
 * creates drm sessions which are used to obtain keys for a crypto
 * session so it can decrypt protected video content.
 *
 * The 1.4 factory must always create 1.4 IDrmPlugin interfaces, which are
 * returned via the 1.0 createPlugin method.
 *
 * To use 1.4 features the caller must cast the returned interface to a
 * 1.4 HAL, using V1_4::IDrmPlugin::castFrom().
 */

interface IDrmFactory extends @1.3::IDrmFactory {
};