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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qwasmscreencapture_p.h"
#include "qwasmmediacapturesession_p.h"
#include "qwasmcamera_p.h"
#include "qwasmvideosink_p.h"
#include <QtMultimedia/qmediacapturesession.h>
QT_BEGIN_NAMESPACE
Q_LOGGING_CATEGORY(qLcWasmsSreenCapture, "qt.multimedia.wasm.screencapture")
QWasmScreenCapture::QWasmScreenCapture(QScreenCapture *screenCap)
: QPlatformSurfaceCapture(ScreenSource{})
{
m_screenCapture = screenCap;
}
QWasmScreenCapture::~QWasmScreenCapture() = default;
QVideoFrameFormat QWasmScreenCapture::frameFormat() const
{
return {};
}
bool QWasmScreenCapture::setActiveInternal(bool active)
{
if (active)
m_captureSession->setVideoSource("monitor");
else
m_captureSession->setVideoSource("");
return true;
}
void QWasmScreenCapture::setCaptureSession(QPlatformMediaCaptureSession *session)
{
m_captureSession = static_cast<QWasmMediaCaptureSession *>(session);
}
void QWasmScreenCapture::setVideoStream(emscripten::val stream)
{
if (m_videoOutput) {
emscripten::val videoTracks = stream.call<emscripten::val>("getVideoTracks");
if (videoTracks.isNull() || videoTracks.isUndefined()) {
return;
}
emscripten::val videoSettings = videoTracks[0].call<emscripten::val>("getSettings");
float pixelRatio = emscripten::val::global("window")["devicePixelRatio"].as<float>();
if (!videoSettings.isNull() || !videoSettings.isUndefined()) {
// double fRate = videoSettings["frameRate"].as<double>(); TODO
int width = static_cast<int>(videoSettings["width"].as<int>() / pixelRatio);
int height = static_cast<int>(videoSettings["height"].as<int>() / pixelRatio);
QSize initialSize(width, height);
QRect initialRect(QPoint(0, 0),initialSize);
m_videoOutput->updateVideoElementGeometry(initialRect);
}
emscripten::val videoElement = m_videoOutput->currentVideoElement();
if (videoElement.isUndefined()) {
qWarning() << "Could not find video element";
return;
}
videoElement.set("srcObject", stream);
m_videoOutput->start();
}
}
void QWasmScreenCapture::setVideoOutput(QWasmVideoOutput *object)
{
if (object)
m_videoOutput = object;
}
QT_END_NAMESPACE