Qqsp/videolabel.cpp

#include "videolabel.h"

#include <QUrl>
//#include <QCoreApplication>
//#include <QThread>

VideoLabel::VideoLabel(QString path, QString filename, QWidget *parent) : QLabel(parent)
{
    m_path = path;
    m_filename = filename;
    setScaledContents(true);
    setSizePolicy(QSizePolicy::Ignored, QSizePolicy::Ignored);
    setAttribute(Qt::WA_TransparentForMouseEvents);
    resolution_set = false;
    m_medialLoaded = false;

    playlist.setPlaybackMode(QMediaPlaylist::PlaybackMode::Loop);
    playlist.addMedia(QUrl::fromLocalFile(m_path + m_filename));
    mediaPlayer.setPlaylist(&playlist);
    mediaPlayer.setVideoOutput(&vfp);
    mediaPlayer.play();
//    while(!vfp.hasFrame && mediaPlayer.error() != QMediaPlayer::InvalidMedia && vfp.error() == QAbstractVideoSurface::NoError)
//    {
//        QCoreApplication::processEvents();
//        //QThread::msleep(4);
//    }

//    if(mediaPlayer.error() != QMediaPlayer::InvalidMedia && vfp.error() == QAbstractVideoSurface::NoError)
//    {
        connect(&vfp, SIGNAL(newFrame(QImage)), this, SLOT(OnNewFrame(QImage)));
        m_videoError = false;
}

VideoLabel::~VideoLabel()
{

}

bool VideoLabel::videoError()
{
    if(mediaPlayer.error() != QMediaPlayer::FormatError && vfp.error() == QAbstractVideoSurface::NoError)
        return false;
    else
        return true;
}

void VideoLabel::OnNewFrame(QImage newVideoFrame)
{
    if(mutex.tryLock())
    {
        setPixmap(QPixmap::fromImage(newVideoFrame));
        if(!m_medialLoaded)
        {
            m_medialLoaded = true;
            emit medialLoaded();
        }
        mutex.unlock();
    }
}