1 /* 2 * Copyright (c) 2022 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef OHOS_SCREEN_SOURCE_TRANS_H 17 #define OHOS_SCREEN_SOURCE_TRANS_H 18 19 #include <condition_variable> 20 #include <mutex> 21 #include <memory> 22 #include <queue> 23 #include <string> 24 #include <thread> 25 26 #include "iimage_source_processor.h" 27 #include "iscreen_source_trans.h" 28 #include "iscreen_source_trans_callback.h" 29 #include "iscreen_channel.h" 30 31 namespace OHOS { 32 namespace DistributedHardware { 33 class ScreenSourceTrans : public IScreenSourceTrans, 34 public IScreenChannelListener, 35 public IImageSourceProcessorListener, 36 public std::enable_shared_from_this<ScreenSourceTrans> { 37 public: 38 ScreenSourceTrans() = default; 39 ~ScreenSourceTrans() = default; 40 41 int32_t SetUp(const VideoParam &localParam, const VideoParam &remoteParam, const std::string &peerDevId) override; 42 int32_t Release() override; 43 int32_t Start() override; 44 int32_t Stop() override; 45 int32_t RegisterStateCallback(const std::shared_ptr<IScreenSourceTransCallback> &callBack) override; 46 sptr<Surface> &GetImageSurface() override; 47 48 void OnSessionOpened() override; 49 void OnSessionClosed() override; 50 void OnDataReceived(const std::shared_ptr<DataBuffer> &data) override; 51 void OnImageProcessDone(const std::shared_ptr<DataBuffer> &data) override; 52 void OnProcessorStateNotify(int32_t state) override; 53 54 private: 55 int32_t CheckVideoParam(const VideoParam ¶m); 56 int32_t CheckTransParam(const VideoParam &localParam, const VideoParam &remoteParam, const std::string &peerDevId); 57 int32_t InitScreenTrans(const VideoParam &localParam, const VideoParam &remoteParam, const std::string &peerDevId); 58 int32_t RegisterChannelListener(); 59 int32_t RegisterProcessorListener(const VideoParam &localParam, const VideoParam &remoteParam); 60 void FeedChannelData(); 61 62 private: 63 static const constexpr char *LOG_TAG = "ScreenSourceTrans"; 64 static constexpr uint8_t SESSION_WAIT_SECONDS = 5; 65 static constexpr uint8_t DATA_WAIT_SECONDS = 1; 66 static constexpr size_t DATA_QUEUE_MAX_SIZE = 1000; 67 68 std::mutex sessionMtx_; 69 std::mutex dataMtx_; 70 std::condition_variable sessionCond_; 71 std::condition_variable dataCond_; 72 std::mutex dataQueueMtx_; 73 std::thread sendDataThread_; 74 75 bool isChannelReady_ = false; 76 sptr<Surface> encoderSurface_; 77 std::queue<std::shared_ptr<DataBuffer>> dataQueue_; 78 79 std::shared_ptr<IImageSourceProcessor> imageProcessor_; 80 std::shared_ptr<IScreenChannel> screenChannel_; 81 std::weak_ptr<IScreenSourceTransCallback> transCallback_; 82 }; 83 } // namespace DistributedHardware 84 } // namespace OHOS 85 #endif