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/*
* Copyright (C) 2018 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#if ENABLE(MEDIA_STREAM) && PLATFORM(COCOA)
#include "IOSurface.h"
#include "MediaSample.h"
#include "RemoteVideoSample.h"
#include <wtf/MachSendRight.h>
#include <wtf/MediaTime.h>
typedef struct __CVBuffer* CVPixelBufferRef;
namespace WebCore {
class ProcessIdentity;
class RemoteVideoSample {
public:
RemoteVideoSample() = default;
RemoteVideoSample(RemoteVideoSample&&) = default;
RemoteVideoSample& operator=(RemoteVideoSample&&) = default;
~RemoteVideoSample() = default;
enum class ShouldCheckForIOSurface { No, Yes };
WEBCORE_EXPORT static std::unique_ptr<RemoteVideoSample> create(MediaSample&, ShouldCheckForIOSurface = ShouldCheckForIOSurface::Yes);
WEBCORE_EXPORT static std::unique_ptr<RemoteVideoSample> create(RetainPtr<CVPixelBufferRef>&&, MediaTime&& presentationTime, MediaSample::VideoRotation = MediaSample::VideoRotation::None, ShouldCheckForIOSurface = ShouldCheckForIOSurface::Yes);
WEBCORE_EXPORT IOSurfaceRef surface() const;
CVPixelBufferRef imageBuffer() const { return m_imageBuffer.get(); }
void setOwnershipIdentity(const ProcessIdentity&);
void clearIOSurface() { m_ioSurface = nullptr; }
const MediaTime& time() const { return m_time; }
uint32_t videoFormat() const { return m_videoFormat; }
IntSize size() const { return m_size; }
MediaSample::VideoRotation rotation() const { return m_rotation; }
bool mirrored() const { return m_mirrored; }
template<class Encoder> void encode(Encoder& encoder) const
{
if (m_ioSurface)
encoder << m_ioSurface->createSendRight();
else
encoder << MachSendRight();
encoder << m_rotation;
encoder << m_time;
encoder << m_videoFormat;
encoder << m_size;
encoder << m_mirrored;
}
template<class Decoder> static WARN_UNUSED_RETURN bool decode(Decoder& decoder, RemoteVideoSample& sample)
{
MachSendRight sendRight;
if (!decoder.decode(sendRight))
return false;
sample.m_sendRight = WTFMove(sendRight);
MediaSample::VideoRotation rotation;
if (!decoder.decode(rotation))
return false;
sample.m_rotation = rotation;
MediaTime time;
if (!decoder.decode(time))
return false;
sample.m_time = WTFMove(time);
uint32_t format;
if (!decoder.decode(format))
return false;
sample.m_videoFormat = format;
IntSize size;
if (!decoder.decode(size))
return false;
sample.m_size = WTFMove(size);
bool mirrored;
if (!decoder.decode(mirrored))
return false;
sample.m_mirrored = mirrored;
return true;
}
private:
RemoteVideoSample(IOSurfaceRef, RetainPtr<CVPixelBufferRef>&&, const DestinationColorSpace&, MediaTime&&, MediaSample::VideoRotation, bool);
std::unique_ptr<WebCore::IOSurface> m_ioSurface;
RetainPtr<CVPixelBufferRef> m_imageBuffer;
MachSendRight m_sendRight;
MediaSample::VideoRotation m_rotation { MediaSample::VideoRotation::None };
MediaTime m_time;
uint32_t m_videoFormat { 0 };
IntSize m_size;
bool m_mirrored { false };
};
inline void RemoteVideoSample::setOwnershipIdentity(const ProcessIdentity& resourceOwner)
{
if (m_ioSurface)
m_ioSurface->setOwnershipIdentity(resourceOwner);
}
}
#endif // ENABLE(MEDIA_STREAM)
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