1 /* 2 * Copyright (C) 2016 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 */ 16 17 #ifndef ANDROID_IAUDIOMANAGER_H 18 #define ANDROID_IAUDIOMANAGER_H 19 20 #include <utils/Errors.h> 21 #include <binder/IInterface.h> 22 #include <hardware/power.h> 23 #include <system/audio.h> 24 25 namespace android { 26 27 // ---------------------------------------------------------------------------- 28 29 class IAudioManager : public IInterface 30 { 31 public: 32 // These transaction IDs must be kept in sync with the method order from 33 // IAudioService.aidl. 34 enum { 35 TRACK_PLAYER = IBinder::FIRST_CALL_TRANSACTION, 36 PLAYER_ATTRIBUTES = IBinder::FIRST_CALL_TRANSACTION + 1, 37 PLAYER_EVENT = IBinder::FIRST_CALL_TRANSACTION + 2, 38 RELEASE_PLAYER = IBinder::FIRST_CALL_TRANSACTION + 3, 39 TRACK_RECORDER = IBinder::FIRST_CALL_TRANSACTION + 4, 40 RECORDER_EVENT = IBinder::FIRST_CALL_TRANSACTION + 5, 41 RELEASE_RECORDER = IBinder::FIRST_CALL_TRANSACTION + 6, 42 PLAYER_SESSION_ID = IBinder::FIRST_CALL_TRANSACTION + 7, 43 }; 44 45 DECLARE_META_INTERFACE(AudioManager) 46 47 // The parcels created by these methods must be kept in sync with the 48 // corresponding methods from IAudioService.aidl and objects it imports. 49 virtual audio_unique_id_t trackPlayer(player_type_t playerType, audio_usage_t usage, 50 audio_content_type_t content, const sp<IBinder>& player, 51 audio_session_t sessionId) = 0; 52 /*oneway*/ virtual status_t playerAttributes(audio_unique_id_t piid, audio_usage_t usage, 53 audio_content_type_t content)= 0; 54 /*oneway*/ virtual status_t playerEvent(audio_unique_id_t piid, player_state_t event, 55 audio_port_handle_t deviceId) = 0; 56 /*oneway*/ virtual status_t releasePlayer(audio_unique_id_t piid) = 0; 57 virtual audio_unique_id_t trackRecorder(const sp<IBinder>& recorder) = 0; 58 /*oneway*/ virtual status_t recorderEvent(audio_unique_id_t riid, recorder_state_t event) = 0; 59 /*oneway*/ virtual status_t releaseRecorder(audio_unique_id_t riid) = 0; 60 /*oneway*/ virtual status_t playerSessionId(audio_unique_id_t piid, audio_session_t sessionId) = 0; 61 }; 62 63 // ---------------------------------------------------------------------------- 64 65 }; // namespace android 66 67 #endif // ANDROID_IAUDIOMANAGER_H 68