1 /* 2 * Copyright (c) 2021 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_CAMERA_PREVIEW_OUTPUT_H 17 #define OHOS_CAMERA_PREVIEW_OUTPUT_H 18 19 #include "capture_output.h" 20 #include "istream_repeat.h" 21 #include "istream_repeat_callback.h" 22 23 namespace OHOS { 24 namespace CameraStandard { 25 class PreviewCallback { 26 public: 27 PreviewCallback() = default; 28 virtual ~PreviewCallback() = default; 29 virtual void OnFrameStarted() const = 0; 30 virtual void OnFrameEnded(const int32_t frameCount) const = 0; 31 virtual void OnError(const int32_t errorCode) const = 0; 32 }; 33 34 class PreviewOutput : public CaptureOutput { 35 public: 36 PreviewOutput(sptr<IStreamRepeat> &streamRepeat); 37 void SetCallback(std::shared_ptr<PreviewCallback> callback); 38 void Release() override; 39 sptr<IStreamRepeat> GetStreamRepeat(); 40 std::shared_ptr<PreviewCallback> GetApplicationCallback(); 41 42 private: 43 sptr<IStreamRepeat> streamRepeat_; 44 std::shared_ptr<PreviewCallback> appCallback_; 45 sptr<IStreamRepeatCallback> svcCallback_; 46 }; 47 } // namespace CameraStandard 48 } // namespace OHOS 49 #endif // OHOS_CAMERA_PREVIEW_OUTPUT_H