Source/WebCore/platform/mediastream/mac/MockRealtimeVideoSourceMac.mm

/*
 * Copyright (C) 2015-2018 Apple Inc. All rights reserved.
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 * are met:
 *
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 *    in the documentation and/or other materials provided with the
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 *    may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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#import "config.h"
#import "MockRealtimeVideoSourceMac.h"

#if ENABLE(MEDIA_STREAM)
#import "GraphicsContextCG.h"
#import "ImageBuffer.h"
#import "ImageTransferSessionVT.h"
#import "MediaConstraints.h"
#import "MediaSampleAVFObjC.h"
#import "MockRealtimeMediaSourceCenter.h"
#import "NotImplemented.h"
#import "PlatformLayer.h"
#import "RealtimeMediaSourceSettings.h"
#import "RealtimeVideoSource.h"
#import "RealtimeVideoUtilities.h"
#import <QuartzCore/CALayer.h>
#import <QuartzCore/CATransaction.h>
#import <objc/runtime.h>

#import "CoreVideoSoftLink.h"
#import <pal/cf/CoreMediaSoftLink.h>

namespace WebCore {
using namespace PAL;

CaptureSourceOrError MockRealtimeVideoSource::create(String&& deviceID, String&& name, String&& hashSalt, const MediaConstraints* constraints)
{
#ifndef NDEBUG
    auto device = MockRealtimeMediaSourceCenter::mockDeviceWithPersistentID(deviceID);
    ASSERT(device);
    if (!device)
        return { };
#endif

    auto source = adoptRef(*new MockRealtimeVideoSourceMac(WTFMove(deviceID), WTFMove(name), WTFMove(hashSalt)));
    // FIXME: We should report error messages
    if (constraints && source->applyConstraints(*constraints))
        return { };

    return CaptureSourceOrError(RealtimeVideoSource::create(WTFMove(source)));
}

MockRealtimeVideoSourceMac::MockRealtimeVideoSourceMac(String&& deviceID, String&& name, String&& hashSalt)
    : MockRealtimeVideoSource(WTFMove(deviceID), WTFMove(name), WTFMove(hashSalt))
{
}

void MockRealtimeVideoSourceMac::updateSampleBuffer()
{
    auto imageBuffer = this->imageBuffer();
    if (!imageBuffer)
        return;

    if (!m_imageTransferSession)
        m_imageTransferSession = ImageTransferSessionVT::create(preferedPixelBufferFormat());

    auto sampleTime = MediaTime::createWithDouble((elapsedTime() + 100_ms).seconds());
    auto sampleBuffer = m_imageTransferSession->createMediaSample(imageBuffer->copyImage()->nativeImage().get(), sampleTime, size(), sampleRotation());
    if (!sampleBuffer)
        return;

    dispatchMediaSampleToObservers(*sampleBuffer);
}

} // namespace WebCore

#endif // ENABLE(MEDIA_STREAM)