blob: c5a6267ba815f648e7206ec3abc29b706b516842 [file] [log] [blame]
/*
* Copyright (C) 2017-2018 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.
*/
#include "config.h"
#include "DisplayCaptureSourceCocoa.h"
#if ENABLE(MEDIA_STREAM)
#include "Logging.h"
#include "MediaSampleAVFObjC.h"
#include "PixelBufferConformerCV.h"
#include "RealtimeMediaSource.h"
#include "RealtimeMediaSourceCenter.h"
#include "RealtimeMediaSourceSettings.h"
#include "RealtimeVideoUtilities.h"
#include "RemoteVideoSample.h"
#include "Timer.h"
#include <CoreMedia/CMSync.h>
#include <mach/mach_time.h>
#include <pal/avfoundation/MediaTimeAVFoundation.h>
#include <pal/cf/CoreMediaSoftLink.h>
#include <pal/spi/cf/CoreAudioSPI.h>
#include <pal/spi/cg/CoreGraphicsSPI.h>
#include <pal/spi/cocoa/IOSurfaceSPI.h>
#include <sys/time.h>
#include <wtf/MainThread.h>
#include <wtf/NeverDestroyed.h>
#include "CoreVideoSoftLink.h"
namespace WebCore {
using namespace PAL;
DisplayCaptureSourceCocoa::DisplayCaptureSourceCocoa(String&& name)
: RealtimeMediaSource(Type::Video, WTFMove(name))
, m_timer(RunLoop::current(), this, &DisplayCaptureSourceCocoa::emitFrame)
{
}
DisplayCaptureSourceCocoa::~DisplayCaptureSourceCocoa()
{
#if PLATFORM(IOS_FAMILY)
RealtimeMediaSourceCenter::singleton().videoCaptureFactory().unsetActiveSource(*this);
#endif
}
const RealtimeMediaSourceCapabilities& DisplayCaptureSourceCocoa::capabilities()
{
if (!m_capabilities) {
RealtimeMediaSourceCapabilities capabilities(settings().supportedConstraints());
// FIXME: what should these be?
capabilities.setWidth(CapabilityValueOrRange(72, 2880));
capabilities.setHeight(CapabilityValueOrRange(45, 1800));
capabilities.setFrameRate(CapabilityValueOrRange(.01, 30.0));
m_capabilities = WTFMove(capabilities);
}
return m_capabilities.value();
}
const RealtimeMediaSourceSettings& DisplayCaptureSourceCocoa::settings()
{
if (!m_currentSettings) {
RealtimeMediaSourceSettings settings;
settings.setFrameRate(frameRate());
auto size = this->size();
settings.setWidth(size.width());
settings.setHeight(size.height());
settings.setDisplaySurface(surfaceType());
settings.setLogicalSurface(false);
RealtimeMediaSourceSupportedConstraints supportedConstraints;
supportedConstraints.setSupportsFrameRate(true);
supportedConstraints.setSupportsWidth(true);
supportedConstraints.setSupportsHeight(true);
supportedConstraints.setSupportsDisplaySurface(true);
supportedConstraints.setSupportsLogicalSurface(true);
settings.setSupportedConstraints(supportedConstraints);
m_currentSettings = WTFMove(settings);
}
return m_currentSettings.value();
}
void DisplayCaptureSourceCocoa::settingsDidChange(OptionSet<RealtimeMediaSourceSettings::Flag> settings)
{
if (settings.contains(RealtimeMediaSourceSettings::Flag::FrameRate) && m_timer.isActive())
m_timer.startRepeating(1_s / frameRate());
if (settings.containsAny({ RealtimeMediaSourceSettings::Flag::Width, RealtimeMediaSourceSettings::Flag::Height }))
m_bufferAttributes = nullptr;
m_currentSettings = { };
}
void DisplayCaptureSourceCocoa::startProducingData()
{
#if PLATFORM(IOS_FAMILY)
RealtimeMediaSourceCenter::singleton().videoCaptureFactory().setActiveSource(*this);
#endif
m_startTime = MonotonicTime::now();
m_timer.startRepeating(1_s / frameRate());
}
void DisplayCaptureSourceCocoa::stopProducingData()
{
m_timer.stop();
m_elapsedTime += MonotonicTime::now() - m_startTime;
m_startTime = MonotonicTime::nan();
}
Seconds DisplayCaptureSourceCocoa::elapsedTime()
{
if (std::isnan(m_startTime))
return m_elapsedTime;
return m_elapsedTime + (MonotonicTime::now() - m_startTime);
}
IntSize DisplayCaptureSourceCocoa::frameSize() const
{
IntSize frameSize = size();
if (frameSize.isEmpty())
return intrinsicSize();
return frameSize;
}
void DisplayCaptureSourceCocoa::emitFrame()
{
#if PLATFORM(COCOA) && !PLATFORM(IOS_FAMILY_SIMULATOR)
if (muted())
return;
if (!m_imageTransferSession)
m_imageTransferSession = ImageTransferSessionVT::create(preferedPixelBufferFormat());
auto sampleTime = MediaTime::createWithDouble((elapsedTime() + 100_ms).seconds());
auto frame = generateFrame();
auto imageSize = WTF::switchOn(frame,
[](RetainPtr<IOSurfaceRef> surface) -> IntSize {
if (!surface)
return { };
return IntSize(IOSurfaceGetWidth(surface.get()), IOSurfaceGetHeight(surface.get()));
},
[](RetainPtr<CGImageRef> image) -> IntSize {
if (!image)
return { };
return IntSize(CGImageGetWidth(image.get()), CGImageGetHeight(image.get()));
}
);
ASSERT(!imageSize.isEmpty());
if (imageSize.isEmpty())
return;
setIntrinsicSize(imageSize);
auto mediaSampleSize = isRemote() ? imageSize : frameSize();
RefPtr<MediaSample> sample = WTF::switchOn(frame,
[this, sampleTime, mediaSampleSize](RetainPtr<IOSurfaceRef> surface) -> RefPtr<MediaSample> {
if (!surface)
return nullptr;
return m_imageTransferSession->createMediaSample(surface.get(), sampleTime, mediaSampleSize);
},
[this, sampleTime, mediaSampleSize](RetainPtr<CGImageRef> image) -> RefPtr<MediaSample> {
if (!image)
return nullptr;
return m_imageTransferSession->createMediaSample(image.get(), sampleTime, mediaSampleSize);
}
);
if (!sample) {
ASSERT_NOT_REACHED();
return;
}
videoSampleAvailable(*sample.get());
#endif
}
} // namespace WebCore
#endif // ENABLE(MEDIA_STREAM)