1 // Copyright (c) Microsoft. All rights reserved. 2 // 3 // The MIT License (MIT) 4 // 5 // Permission is hereby granted, free of charge, to any person obtaining a copy 6 // of this software and associated documentation files(the "Software"), to deal 7 // in the Software without restriction, including without limitation the rights 8 // to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 9 // copies of the Software, and to permit persons to whom the Software is 10 // furnished to do so, subject to the following conditions : 11 // 12 // The above copyright notice and this permission notice shall be included in 13 // all copies or substantial portions of the Software. 14 // 15 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE 18 // AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 // LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 20 // OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 21 // THE SOFTWARE. 22 23 #pragma once 24 25 #include "MFIncludes.hpp" 26 27 28 namespace Media { 29 30 class MediaSink; 31 32 enum class CaptureStreamType 33 { 34 Preview = 0, 35 Record 36 }; 37 38 ref class CaptureFrameGrabber sealed 39 { 40 public: 41 42 // IClosable 43 virtual ~CaptureFrameGrabber(); 44 45 virtual void ShowCameraSettings(); 46 47 internal: 48 49 static concurrency::task<CaptureFrameGrabber^> CreateAsync(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props) 50 { 51 return CreateAsync(capture, props, CaptureStreamType::Preview); 52 } 53 54 static concurrency::task<CaptureFrameGrabber^> CreateAsync(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props, CaptureStreamType streamType); 55 56 concurrency::task<MW::ComPtr<IMF2DBuffer2>> GetFrameAsync(); 57 concurrency::task<void> FinishAsync(); 58 59 private: 60 61 CaptureFrameGrabber(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props, CaptureStreamType streamType); 62 63 void ProcessSample(_In_ MediaSample^ sample); 64 65 Platform::Agile<WMC::MediaCapture> _capture; 66 ::Windows::Media::IMediaExtension^ _mediaExtension; 67 68 MW::ComPtr<MediaSink> _mediaSink; 69 70 CaptureStreamType _streamType; 71 72 enum class State 73 { 74 Created, 75 Started, 76 Closing, 77 Closed 78 } _state; 79 80 std::queue<concurrency::task_completion_event<MW::ComPtr<IMF2DBuffer2>>> _videoSampleRequestQueue; 81 AutoMF _mf; 82 MWW::SRWLock _lock; 83 }; 84 85 }