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// Copyright 2022 The Chromium Authors
// 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_WRAPPER_H_
#define REMOTING_HOST_DESKTOP_CAPTURER_WRAPPER_H_
#include <cstdint>
#include <memory>
#include "base/functional/callback_forward.h"
#include "base/memory/raw_ptr.h"
#include "base/threading/thread_checker.h"
#include "remoting/protocol/desktop_capturer.h"
#include "third_party/webrtc/modules/desktop_capture/desktop_capturer.h"
#include "third_party/webrtc/modules/desktop_capture/shared_memory.h"
#if defined(WEBRTC_USE_GIO)
#include "third_party/webrtc/modules/desktop_capture/desktop_capture_metadata.h"
#endif
namespace remoting {
// Simple wrapper class which holds a webrtc::DesktopCapturer and exposes a
// remoting::DesktopCapturer interface for interacting with it.
class DesktopCapturerWrapper : public DesktopCapturer,
public webrtc::DesktopCapturer::Callback {
public:
DesktopCapturerWrapper();
DesktopCapturerWrapper(const DesktopCapturerWrapper&) = delete;
DesktopCapturerWrapper& operator=(const DesktopCapturerWrapper&) = delete;
~DesktopCapturerWrapper() override;
void CreateCapturer(
base::OnceCallback<std::unique_ptr<webrtc::DesktopCapturer>()> creator);
// 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;
void SetMaxFrameRate(std::uint32_t max_frame_rate) override;
#if defined(WEBRTC_USE_GIO)
void GetMetadataAsync(base::OnceCallback<void(webrtc::DesktopCaptureMetadata)>
callback) override;
#endif
private:
// webrtc::DesktopCapturer::Callback implementation.
void OnFrameCaptureStart() override;
void OnCaptureResult(webrtc::DesktopCapturer::Result result,
std::unique_ptr<webrtc::DesktopFrame> frame) override;
raw_ptr<webrtc::DesktopCapturer::Callback> callback_ = nullptr;
std::unique_ptr<webrtc::DesktopCapturer> capturer_;
THREAD_CHECKER(thread_checker_);
};
} // namespace remoting
#endif // REMOTING_HOST_DESKTOP_CAPTURER_WRAPPER_H_
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