1 /* 2 * Copyright (C) 2020 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_MEDIA_SIMULATED_TRANSCODER_H 18 #define ANDROID_MEDIA_SIMULATED_TRANSCODER_H 19 20 #include <android-base/thread_annotations.h> 21 #include <media/TranscoderInterface.h> 22 23 #include <list> 24 #include <map> 25 #include <mutex> 26 27 namespace android { 28 29 /** 30 * SimulatedTranscoder is currently used to instantiate MediaTranscodingService 31 * on service side for testing, so that we could actually test the IPC calls of 32 * MediaTranscodingService to expose issues that's observable only over IPC. 33 * SimulatedTranscoder is used when useSimulatedTranscoder in TranscodingTestConfig 34 * is set to true. 35 * 36 * SimulatedTranscoder simulates session execution by reporting finish after kSessionDurationUs. 37 * Session lifecycle events are reported via progress updates with special progress 38 * numbers (equal to the Event's type). 39 */ 40 class SimulatedTranscoder : public TranscoderInterface, 41 public std::enable_shared_from_this<SimulatedTranscoder> { 42 public: 43 struct Event { 44 enum Type { NoEvent, Start, Pause, Resume, Stop, Finished, Failed, Abandon } type; 45 ClientIdType clientId; 46 SessionIdType sessionId; 47 std::function<void()> runnable; 48 }; 49 50 static constexpr int64_t kSessionDurationUs = 1000000; 51 52 SimulatedTranscoder(const std::shared_ptr<TranscoderCallbackInterface>& cb); 53 ~SimulatedTranscoder(); 54 55 // TranscoderInterface 56 void start(ClientIdType clientId, SessionIdType sessionId, 57 const TranscodingRequestParcel& request, uid_t callingUid, 58 const std::shared_ptr<ITranscodingClientCallback>& clientCallback) override; 59 void pause(ClientIdType clientId, SessionIdType sessionId) override; 60 void resume(ClientIdType clientId, SessionIdType sessionId, 61 const TranscodingRequestParcel& request, uid_t callingUid, 62 const std::shared_ptr<ITranscodingClientCallback>& clientCallback) override; 63 void stop(ClientIdType clientId, SessionIdType sessionId, bool abandon = false) override; 64 // ~TranscoderInterface 65 66 private: 67 std::weak_ptr<TranscoderCallbackInterface> mCallback; 68 std::mutex mLock; 69 std::condition_variable mCondition; 70 std::list<Event> mQueue GUARDED_BY(mLock); 71 bool mLooperReady; 72 73 using SessionKeyType = std::pair<ClientIdType, SessionIdType>; 74 // map of session's remaining time in microsec. 75 std::map<SessionKeyType, std::chrono::microseconds> mRemainingTimeMap; 76 77 static const char* toString(Event::Type type); 78 void queueEvent(Event::Type type, ClientIdType clientId, SessionIdType sessionId, 79 std::function<void()> runnable); 80 void threadLoop(); 81 }; 82 83 } // namespace android 84 85 #endif // ANDROID_MEDIA_SIMULATED_TRANSCODER_H 86