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// Copyright (c) 2014-2024, The Monero Project
//
// 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.
//
// 3. Neither the name of the copyright holder nor the names of its contributors 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 "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
// THE COPYRIGHT HOLDER 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 "QrScanThread.h"
#include <QtGlobal>
#include <QDebug>
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
extern QImage qt_imageFromVideoFrame(const QVideoFrame &f);
#endif
QrScanThread::QrScanThread(QObject *parent)
: QThread(parent)
,m_running(true)
{
}
void QrScanThread::processQImage(const QImage &qimg)
{
try {
for (const std::string &code : m_decoder.decode(qimg))
{
emit decoded(QString::fromStdString(code));
}
}
catch(std::exception &e) {
qDebug() << "ERROR: " << e.what();
emit notifyError(e.what());
}
}
void QrScanThread::processVideoFrame(const QVideoFrame &frame)
{
#if QT_VERSION < QT_VERSION_CHECK(5, 15, 0)
processQImage( qt_imageFromVideoFrame(frame) );
#else
processQImage(frame.image());
#endif
}
void QrScanThread::stop()
{
m_running = false;
m_waitCondition.wakeOne();
}
void QrScanThread::addFrame(const QVideoFrame &frame)
{
QMutexLocker locker(&m_mutex);
m_queue.append(frame);
m_waitCondition.wakeOne();
}
void QrScanThread::run()
{
QVideoFrame frame;
while(m_running) {
QMutexLocker locker(&m_mutex);
while(m_queue.isEmpty() && m_running)
m_waitCondition.wait(&m_mutex);
if(!m_queue.isEmpty())
processVideoFrame(m_queue.takeFirst());
}
}
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