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
28namespace Media {
29
30class MediaSink;
31
32enum class CaptureStreamType
33{
34    Preview = 0,
35    Record
36};
37
38ref class CaptureFrameGrabber sealed
39{
40public:
41
42    // IClosable
43    virtual ~CaptureFrameGrabber();
44
45    virtual void ShowCameraSettings();
46
47internal:
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
59private:
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}