ScreenDisplayCapturerMac.h [plain text]
#pragma once
#if ENABLE(MEDIA_STREAM) && PLATFORM(MAC)
#include "DisplayCaptureSourceCocoa.h"
#include "IOSurface.h"
#include <CoreGraphics/CGDisplayConfiguration.h>
#include <CoreGraphics/CGDisplayStream.h>
#include <wtf/Lock.h>
#include <wtf/OSObjectPtr.h>
typedef struct __CVBuffer *CVPixelBufferRef;
typedef struct opaqueCMSampleBuffer *CMSampleBufferRef;
namespace WebCore {
class ScreenDisplayCapturerMac final : public DisplayCaptureSourceCocoa::Capturer, public CanMakeWeakPtr<ScreenDisplayCapturerMac> {
public:
static Expected<UniqueRef<DisplayCaptureSourceCocoa::Capturer>, String> create(const String&);
explicit ScreenDisplayCapturerMac(uint32_t);
~ScreenDisplayCapturerMac();
static Optional<CaptureDevice> screenCaptureDeviceWithPersistentID(const String&);
static void screenCaptureDevices(Vector<CaptureDevice>&);
private:
static void displayReconfigurationCallBack(CGDirectDisplayID, CGDisplayChangeSummaryFlags, void*);
bool start(float frameRate) final;
void stop() final;
DisplayCaptureSourceCocoa::DisplayFrameType generateFrame() final;
RealtimeMediaSourceSettings::DisplaySurfaceType surfaceType() const final { return RealtimeMediaSourceSettings::DisplaySurfaceType::Monitor; }
void commitConfiguration(float frameRate) final;
CaptureDevice::DeviceType deviceType() const final { return CaptureDevice::DeviceType::Screen; }
#if !RELEASE_LOG_DISABLED
const char* logClassName() const final { return "ScreenDisplayCapturerMac"; }
#endif
void displayWasReconfigured(CGDirectDisplayID, CGDisplayChangeSummaryFlags);
bool createDisplayStream(float frameRate);
bool startDisplayStream(float frameRate);
class DisplaySurface {
public:
DisplaySurface() = default;
explicit DisplaySurface(IOSurfaceRef surface)
: m_surface(surface)
{
if (m_surface)
IOSurfaceIncrementUseCount(m_surface.get());
}
~DisplaySurface()
{
if (m_surface)
IOSurfaceDecrementUseCount(m_surface.get());
}
DisplaySurface& operator=(IOSurfaceRef surface)
{
if (m_surface)
IOSurfaceDecrementUseCount(m_surface.get());
if (surface)
IOSurfaceIncrementUseCount(surface);
m_surface = surface;
return *this;
}
IOSurfaceRef ioSurface() const { return m_surface.get(); }
private:
RetainPtr<IOSurfaceRef> m_surface;
};
void newFrame(CGDisplayStreamFrameStatus, DisplaySurface&&);
DisplaySurface m_currentFrame;
RetainPtr<CGDisplayStreamRef> m_displayStream;
OSObjectPtr<dispatch_queue_t> m_captureQueue;
uint32_t m_displayID { 0 };
bool m_isRunning { false };
bool m_observingDisplayChanges { false };
};
}
#endif // ENABLE(MEDIA_STREAM) && PLATFORM(MAC)