blob: e2db7daf10fb1b789d1cf72f77090fe5231457be [file] [log] [blame]
* Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
#include <memory>
#include "webrtc/modules/desktop_capture/desktop_capture_options.h"
#include "webrtc/modules/desktop_capture/screen_capturer.h"
#include "webrtc/modules/desktop_capture/window_capturer.h"
namespace webrtc {
// WindowCapturer implementation that uses a screen capturer to capture the
// whole screen and crops the video frame to the window area when the captured
// window is on top.
class CroppingWindowCapturer : public WindowCapturer,
public DesktopCapturer::Callback {
static WindowCapturer* Create(const DesktopCaptureOptions& options);
virtual ~CroppingWindowCapturer();
// DesktopCapturer implementation.
void Start(DesktopCapturer::Callback* callback) override;
void SetSharedMemoryFactory(
std::unique_ptr<SharedMemoryFactory> shared_memory_factory) override;
void Capture(const DesktopRegion& region) override;
void SetExcludedWindow(WindowId window) override;
// WindowCapturer implementation.
bool GetWindowList(WindowList* windows) override;
bool SelectWindow(WindowId id) override;
bool BringSelectedWindowToFront() override;
// DesktopCapturer::Callback implementation, passed to |screen_capturer_| to
// intercept the capture result.
void OnCaptureResult(DesktopCapturer::Result result,
std::unique_ptr<DesktopFrame> frame) override;
explicit CroppingWindowCapturer(const DesktopCaptureOptions& options);
// The platform implementation should override these methods.
// Returns true if it is OK to capture the whole screen and crop to the
// selected window, i.e. the selected window is opaque, rectangular, and not
// occluded.
virtual bool ShouldUseScreenCapturer() = 0;
// Returns the window area relative to the top left of the virtual screen
// within the bounds of the virtual screen.
virtual DesktopRect GetWindowRectInVirtualScreen() = 0;
WindowId selected_window() const { return selected_window_; }
WindowId excluded_window() const { return excluded_window_; }
DesktopCaptureOptions options_;
DesktopCapturer::Callback* callback_;
std::unique_ptr<WindowCapturer> window_capturer_;
std::unique_ptr<ScreenCapturer> screen_capturer_;
WindowId selected_window_;
WindowId excluded_window_;
} // namespace webrtc