SampleBufferDisplayLayer.h [plain text]
#pragma once
#include "MediaSample.h"
#include "PlatformLayer.h"
#include <wtf/CompletionHandler.h>
#include <wtf/WeakPtr.h>
namespace WTF {
class MediaTime;
}
namespace WebCore {
class IntSize;
class MediaSample;
class SampleBufferDisplayLayer {
public:
class Client : public CanMakeWeakPtr<Client> {
public:
virtual ~Client() = default;
virtual void sampleBufferDisplayLayerStatusDidChange(SampleBufferDisplayLayer&) = 0;
};
WEBCORE_EXPORT static std::unique_ptr<SampleBufferDisplayLayer> create(Client&);
using LayerCreator = std::unique_ptr<SampleBufferDisplayLayer> (*)(Client&);
WEBCORE_EXPORT static void setCreator(LayerCreator);
virtual ~SampleBufferDisplayLayer() = default;
virtual void initialize(bool hideRootLayer, IntSize, CompletionHandler<void(bool didSucceed)>&&) = 0;
virtual bool didFail() const = 0;
virtual void updateDisplayMode(bool hideDisplayLayer, bool hideRootLayer) = 0;
virtual void updateAffineTransform(CGAffineTransform) = 0;
virtual void updateBoundsAndPosition(CGRect, MediaSample::VideoRotation) = 0;
virtual void flush() = 0;
virtual void flushAndRemoveImage() = 0;
virtual void play() = 0;
virtual void pause() = 0;
virtual void enqueueSample(MediaSample&) = 0;
virtual void clearEnqueuedSamples() = 0;
virtual PlatformLayer* rootLayer() = 0;
enum class RenderPolicy { TimingInfo, Immediately };
virtual void setRenderPolicy(RenderPolicy) { };
protected:
explicit SampleBufferDisplayLayer(Client&);
WeakPtr<Client> m_client;
private:
static LayerCreator m_layerCreator;
};
inline SampleBufferDisplayLayer::SampleBufferDisplayLayer(Client& client)
: m_client(makeWeakPtr(client))
{
}
}