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// Copyright 2015 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef REMOTING_HOST_DESKTOP_CAPTURER_PROXY_H_
#define REMOTING_HOST_DESKTOP_CAPTURER_PROXY_H_
#include <memory>
#include "base/callback.h"
#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/threading/thread_checker.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
namespace base {
class SingleThreadTaskRunner;
} // namespace base
namespace webrtc {
class DesktopCaptureOptions;
} // namespace webrtc
namespace remoting {
// DesktopCapturerProxy is responsible for calling webrtc::DesktopCapturer on
// the capturer thread and then returning results to the caller's thread.
// GetSourceList() and SelectSource() functions are not implemented by this
// class, they always return false.
class DesktopCapturerProxy : public webrtc::DesktopCapturer {
public:
explicit DesktopCapturerProxy(
scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner);
~DesktopCapturerProxy() override;
// CreateCapturer() should be used if the capturer needs to be created on the
// capturer thread. Alternatively the capturer can be passed to
// set_capturer().
void CreateCapturer(const webrtc::DesktopCaptureOptions& options);
void set_capturer(std::unique_ptr<webrtc::DesktopCapturer> capturer);
// webrtc::DesktopCapturer interface.
void Start(Callback* callback) override;
void SetSharedMemoryFactory(std::unique_ptr<webrtc::SharedMemoryFactory>
shared_memory_factory) override;
void CaptureFrame() override;
bool GetSourceList(SourceList* sources) override;
bool SelectSource(SourceId id) override;
private:
class Core;
void OnFrameCaptured(webrtc::DesktopCapturer::Result result,
std::unique_ptr<webrtc::DesktopFrame> frame);
base::ThreadChecker thread_checker_;
std::unique_ptr<Core> core_;
scoped_refptr<base::SingleThreadTaskRunner> capture_task_runner_;
webrtc::DesktopCapturer::Callback* callback_;
base::WeakPtrFactory<DesktopCapturerProxy> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(DesktopCapturerProxy);
};
} // namespace remoting
#endif // REMOTING_HOST_DESKTOP_CAPTURER_PROXY_H_