创建qml自定义视频源（Qt6.3.1+取景器帧)测试源码

#include "tool.h" #include <QVideoSink> #include <QVideoFrame> #include <QDebug> Tool::Tool(QObject *parent) : QObject{parent} { // qRegisterMetaType<QVideoSink>("QVideoSink"); } /*! * \brief Tool::setVideoFrame 设置并处理已获取视频帧 * \param frame 已获取视频帧 */ void Tool::setVideoFrame(const QVideoFrame frame) { qDebug()<<Q_FUNC_INFO<<__LINE__<<frame; qDebug()<<"1111111111111111"<<frame.toImage(); // const QImage image = frame.toImage(); // //将视频帧放入图像提供者 // ImageProvider::setImage(image); if(m_videoSink != nullptr) m_videoSink->setVideoFrame(frame); } void Tool::setVideoImage(const QImage image) { qDebug()<<Q_FUNC_INFO<<__LINE__<<image; QVideoFrameFormat frameFormat(image.size(), QVideoFrameFormat::Format_BGRA8888); QVideoFrame f(frameFormat); if (f.map(QVideoFrame::WriteOnly)) { memcpy(f.bits(0), image.bits(), image.sizeInBytes()); f.setStartTime(0); f.unmap(); qDebug()<<"666666666666"<<f; if(m_videoSink != nullptr) m_videoSink->setVideoFrame(f); } } QVideoSink *Tool::videoSink() const { return m_videoSink; } void Tool::setVideoSink(QVideoSink *newVideoSink) { if (m_videoSink == newVideoSink) return; m_videoSink = newVideoSink; emit videoSinkChanged(); }