e41c433502
Extract sigslot into separate target and move it to proper third_party directory. Bug: webrtc:8366 Change-Id: Id2e0712bd020bfad811947803c94553dce06d976 Reviewed-on: https://webrtc-review.googlesource.com/84141 Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org> Reviewed-by: Harald Alvestrand <hta@webrtc.org> Reviewed-by: Niklas Enbom <niklas.enbom@webrtc.org> Commit-Queue: Artem Titov <titovartem@webrtc.org> Cr-Commit-Position: refs/heads/master@{#24099}
87 lines
2.9 KiB
C++
87 lines
2.9 KiB
C++
/*
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* Copyright 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 PC_VIDEOCAPTURERTRACKSOURCE_H_
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#define PC_VIDEOCAPTURERTRACKSOURCE_H_
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#include <memory>
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#include "api/mediastreaminterface.h"
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#include "media/base/videocapturer.h"
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#include "media/base/videocommon.h"
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#include "pc/videotracksource.h"
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#include "rtc_base/asyncinvoker.h"
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#include "rtc_base/third_party/sigslot/sigslot.h"
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// VideoCapturerTrackSource implements VideoTrackSourceInterface. It owns a
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// cricket::VideoCapturer and make sure the camera is started at a resolution
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// that honors the constraints.
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// The state is set depending on the result of starting the capturer.
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// If the constraint can't be met or the capturer fails to start, the state
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// transition to kEnded, otherwise it transitions to kLive.
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namespace webrtc {
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class MediaConstraintsInterface;
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class VideoCapturerTrackSource : public VideoTrackSource,
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public sigslot::has_slots<> {
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public:
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// Creates an instance of VideoCapturerTrackSource from |capturer|.
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// |constraints| can be NULL and in that case the camera is opened using a
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// default resolution.
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static rtc::scoped_refptr<VideoTrackSourceInterface> Create(
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rtc::Thread* worker_thread,
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std::unique_ptr<cricket::VideoCapturer> capturer,
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const webrtc::MediaConstraintsInterface* constraints,
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bool remote);
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static rtc::scoped_refptr<VideoTrackSourceInterface> Create(
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rtc::Thread* worker_thread,
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std::unique_ptr<cricket::VideoCapturer> capturer,
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bool remote);
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bool is_screencast() const final { return video_capturer_->IsScreencast(); }
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absl::optional<bool> needs_denoising() const final {
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return needs_denoising_;
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}
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bool GetStats(Stats* stats) final;
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protected:
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VideoCapturerTrackSource(rtc::Thread* worker_thread,
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std::unique_ptr<cricket::VideoCapturer> capturer,
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bool remote);
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virtual ~VideoCapturerTrackSource();
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rtc::VideoSourceInterface<VideoFrame>* source() override {
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return video_capturer_.get();
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}
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void Initialize(const webrtc::MediaConstraintsInterface* constraints);
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private:
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void Stop();
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void OnStateChange(cricket::VideoCapturer* capturer,
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cricket::CaptureState capture_state);
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rtc::Thread* signaling_thread_;
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rtc::Thread* worker_thread_;
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rtc::AsyncInvoker invoker_;
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std::unique_ptr<cricket::VideoCapturer> video_capturer_;
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bool started_;
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cricket::VideoFormat format_;
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absl::optional<bool> needs_denoising_;
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};
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} // namespace webrtc
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#endif // PC_VIDEOCAPTURERTRACKSOURCE_H_
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