1/* 2 * Copyright (C) 2019 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package android.hardware.cas@1.1; 17 18import @1.1::ICas; 19import @1.1::ICasListener; 20import @1.0::IMediaCasService; 21 22/** 23 * IMediaCasService is the main entry point for interacting with a vendor's 24 * cas HAL to create cas and descrambler plugin instances. A cas plugin instance 25 * opens cas sessions which are used to obtain keys for a descrambler session, 26 * which can in turn be used to descramble protected video content. 27 */ 28 29interface IMediaCasService extends @1.0::IMediaCasService { 30 /** 31 * Construct a new instance of a @1.1 ICAS CasPlugin given a CA_system_id. 32 * 33 * @param caSystemId the id of the CA system. 34 * @param listener the event listener to receive events coming from the CasPlugin. 35 * @return cas the newly created CasPlugin interface. 36 */ 37 createPluginExt(int32_t caSystemId, ICasListener listener) generates (ICas cas); 38}; 39