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30e60d6fd9
This required a fairly extensive overhaul: * Removed locks from the implementation. The filter/pin architecture does use multiple threads, but the state is controlled on one and synchronization is done via flags that don't require locking. Note though that the baseclasses used a lot of locking, it's unclear why, but perhaps there are things I'm not aware of. The locking was not done consistently though, which doesn't seem to have been a problem. * Change the code to not mix AddRef/Release and use of explicit 'delete'. * Removed implementations of interfaces we don't need/use. * Similarly some methods now return E_NOTIMPL. * Added some utilities to make use of COM interfaces and concepts, easier. BUG=webrtc:10374 TBR=mbonadei@webrtc.org Change-Id: Iaedb1157d37ef5d5c75f727dba3d7de75ce22cd8 Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/125086 Commit-Queue: Tommi <tommi@webrtc.org> Reviewed-by: Christian Fremerey <chfremer@webrtc.org> Cr-Commit-Position: refs/heads/master@{#27072}
74 lines
2.3 KiB
C++
74 lines
2.3 KiB
C++
/*
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* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#ifndef MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_VIDEO_CAPTURE_DS_H_
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#define MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_VIDEO_CAPTURE_DS_H_
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#include "api/scoped_refptr.h"
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#include "modules/video_capture/video_capture_impl.h"
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#include "modules/video_capture/windows/device_info_ds.h"
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#define CAPTURE_FILTER_NAME L"VideoCaptureFilter"
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#define SINK_FILTER_NAME L"SinkFilter"
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namespace webrtc {
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namespace videocapturemodule {
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// Forward declaraion
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class CaptureSinkFilter;
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class VideoCaptureDS : public VideoCaptureImpl {
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public:
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VideoCaptureDS();
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virtual int32_t Init(const char* deviceUniqueIdUTF8);
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/*************************************************************************
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*
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* Start/Stop
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*
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*************************************************************************/
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int32_t StartCapture(const VideoCaptureCapability& capability) override;
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int32_t StopCapture() override;
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/**************************************************************************
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*
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* Properties of the set device
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*
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**************************************************************************/
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bool CaptureStarted() override;
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int32_t CaptureSettings(VideoCaptureCapability& settings) override;
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protected:
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~VideoCaptureDS() override;
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// Help functions
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int32_t SetCameraOutput(const VideoCaptureCapability& requestedCapability);
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int32_t DisconnectGraph();
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HRESULT ConnectDVCamera();
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DeviceInfoDS _dsInfo;
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IBaseFilter* _captureFilter;
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IGraphBuilder* _graphBuilder;
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IMediaControl* _mediaControl;
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rtc::scoped_refptr<CaptureSinkFilter> sink_filter_;
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IPin* _inputSendPin;
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IPin* _outputCapturePin;
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// Microsoft DV interface (external DV cameras)
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IBaseFilter* _dvFilter;
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IPin* _inputDvPin;
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IPin* _outputDvPin;
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};
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} // namespace videocapturemodule
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} // namespace webrtc
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#endif // MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_VIDEO_CAPTURE_DS_H_
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