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/*
* Copyright (C) 2022 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. AND ITS CONTRIBUTORS ``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 ITS 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(VIDEO) && USE(AVFOUNDATION)
#include "ImageOrientation.h"
#include "VideoFrame.h"
#include <wtf/RetainPtr.h>
using CVPixelBufferRef = struct __CVBuffer*;
namespace WebCore {
class VideoFrameCV : public VideoFrame {
public:
WEBCORE_EXPORT static Ref<VideoFrameCV> create(MediaTime presentationTime, bool isMirrored, VideoRotation, RetainPtr<CVPixelBufferRef>&&);
WEBCORE_EXPORT ~VideoFrameCV();
CVPixelBufferRef pixelBuffer() const { return m_pixelBuffer.get(); }
ImageOrientation orientation() const;
template<typename Encoder> void encode(Encoder&) const;
template<typename Decoder> static std::optional<RefPtr<VideoFrameCV>> decode(Decoder&);
// VideoFrame overrides.
WEBCORE_EXPORT WebCore::FloatSize presentationSize() const final;
WEBCORE_EXPORT uint32_t videoPixelFormat() const final;
bool isCV() const final { return true; }
WEBCORE_EXPORT RefPtr<WebCore::VideoFrameCV> asVideoFrameCV() final;
private:
WEBCORE_EXPORT VideoFrameCV(MediaTime presentationTime, bool isMirrored, VideoRotation, RetainPtr<CVPixelBufferRef>&&);
const RetainPtr<CVPixelBufferRef> m_pixelBuffer;
};
template<typename Encoder> void VideoFrameCV::encode(Encoder& encoder) const
{
encoder << m_presentationTime << m_isMirrored << m_rotation << m_pixelBuffer;
}
template<typename Decoder> std::optional<RefPtr<VideoFrameCV>> VideoFrameCV::decode(Decoder& decoder)
{
auto presentationTime = decoder.template decode<MediaTime>();
auto isMirrored = decoder.template decode<bool>();
auto rotation = decoder.template decode<VideoRotation>();
auto pixelBuffer = decoder.template decode<RetainPtr<CVPixelBufferRef>>();
if (!decoder.isValid() || !*pixelBuffer)
return std::nullopt;
return VideoFrameCV::create(*presentationTime, *isMirrored, *rotation, WTFMove(*pixelBuffer));
}
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::VideoFrameCV)
static bool isType(const WebCore::VideoFrame& videoFrame) { return videoFrame.isCV(); }
static bool isType(const WebCore::MediaSample& mediaSample) { return is<WebCore::VideoFrame>(mediaSample) && is<WebCore::VideoFrameCV>(downcast<WebCore::VideoFrame>(mediaSample)); }
SPECIALIZE_TYPE_TRAITS_END()
#endif
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