f4334277
 Hu Chunming
提交3rdparty
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// Copyright (c) Microsoft. All rights reserved.
//
// The MIT License (MIT)
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files(the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions :
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#pragma once
#include "MFIncludes.hpp"
namespace Media {
class MediaSink;
enum class CaptureStreamType
{
Preview = 0,
Record
};
ref class CaptureFrameGrabber sealed
{
public:
// IClosable
virtual ~CaptureFrameGrabber();
virtual void ShowCameraSettings();
internal:
static concurrency::task<CaptureFrameGrabber^> CreateAsync(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props)
{
return CreateAsync(capture, props, CaptureStreamType::Preview);
}
static concurrency::task<CaptureFrameGrabber^> CreateAsync(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props, CaptureStreamType streamType);
concurrency::task<MW::ComPtr<IMF2DBuffer2>> GetFrameAsync();
concurrency::task<void> FinishAsync();
private:
CaptureFrameGrabber(_In_ WMC::MediaCapture^ capture, _In_ WMMp::VideoEncodingProperties^ props, CaptureStreamType streamType);
void ProcessSample(_In_ MediaSample^ sample);
Platform::Agile<WMC::MediaCapture> _capture;
::Windows::Media::IMediaExtension^ _mediaExtension;
MW::ComPtr<MediaSink> _mediaSink;
CaptureStreamType _streamType;
enum class State
{
Created,
Started,
Closing,
Closed
} _state;
std::queue<concurrency::task_completion_event<MW::ComPtr<IMF2DBuffer2>>> _videoSampleRequestQueue;
AutoMF _mf;
MWW::SRWLock _lock;
};
}
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