fb45d170c0
I readded virtual bool Pause(bool paused) for now with a dummy implementation since Chrome remoting override this method. Original cl description: Removed unused cricket::VideoCapturer methods: void UpdateAspectRatio(int ratio_w, int ratio_h); void ClearAspectRatio(); bool Pause(bool paused); Restart(const VideoFormat& capture_format); MuteToBlackThenPause(bool muted); IsMuted() const set_square_pixel_aspect_ratio bool square_pixel_aspect_ratio() This cl also remove the use of messages and posting of state change. Further more - a thread checker is added to make sure methods are called on only one thread. Construction can happen on a separate thred. It does not add restrictions on what thread frames are delivered on though. There is more features in VideoCapturer::Onframe related to screen share in ARGB that probably can be cleaned up in a follow up cl. BUG=webrtc:5426 TBR=pthatcher@webrtc.org Review URL: https://codereview.webrtc.org/1744153002 . Cr-Commit-Position: refs/heads/master@{#11809}
82 lines
3.1 KiB
C++
82 lines
3.1 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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// The CaptureManager class manages VideoCapturers to make it possible to share
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// the same VideoCapturers across multiple instances. E.g. if two instances of
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// some class want to listen to same VideoCapturer they can't individually stop
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// and start capturing as doing so will affect the other instance.
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// The class employs reference counting on starting and stopping of capturing of
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// frames such that if anyone is still listening it will not be stopped. The
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// class also provides APIs for attaching VideoRenderers to a specific capturer
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// such that the VideoRenderers are fed frames directly from the capturer.
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// CaptureManager is Thread-unsafe. This means that none of its APIs may be
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// called concurrently. Note that callbacks are called by the VideoCapturer's
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// thread which is normally a separate unmarshalled thread and thus normally
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// require lock protection.
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#ifndef WEBRTC_MEDIA_BASE_CAPTUREMANAGER_H_
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#define WEBRTC_MEDIA_BASE_CAPTUREMANAGER_H_
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#include <map>
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#include <vector>
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#include "webrtc/base/sigslotrepeater.h"
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#include "webrtc/base/thread_checker.h"
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#include "webrtc/media/base/videocommon.h"
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#include "webrtc/media/base/videocapturer.h"
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#include "webrtc/media/base/videosinkinterface.h"
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namespace cricket {
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class VideoFrame;
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class VideoCapturerState;
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class CaptureManager : public sigslot::has_slots<> {
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public:
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enum RestartOptions {
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kRequestRestart,
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kForceRestart
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};
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CaptureManager();
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virtual ~CaptureManager();
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virtual bool StartVideoCapture(VideoCapturer* video_capturer,
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const VideoFormat& desired_format);
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virtual bool StopVideoCapture(VideoCapturer* video_capturer,
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const VideoFormat& format);
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virtual void AddVideoSink(VideoCapturer* video_capturer,
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rtc::VideoSinkInterface<VideoFrame>* sink);
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virtual void RemoveVideoSink(VideoCapturer* video_capturer,
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rtc::VideoSinkInterface<VideoFrame>* sink);
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sigslot::repeater2<VideoCapturer*, CaptureState> SignalCapturerStateChange;
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private:
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typedef std::map<VideoCapturer*, VideoCapturerState*> CaptureStates;
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bool IsCapturerRegistered(VideoCapturer* video_capturer) const;
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bool RegisterVideoCapturer(VideoCapturer* video_capturer);
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void UnregisterVideoCapturer(VideoCapturerState* capture_state);
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bool StartWithBestCaptureFormat(VideoCapturerState* capture_info,
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VideoCapturer* video_capturer);
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VideoCapturerState* GetCaptureState(VideoCapturer* video_capturer) const;
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rtc::ThreadChecker thread_checker_;
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CaptureStates capture_states_;
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};
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} // namespace cricket
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#endif // WEBRTC_MEDIA_BASE_CAPTUREMANAGER_H_
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