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@ -1,5 +1,6 @@
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#include "ffmpegvideodlg.h"
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#include "ui_ffmpegvideodlg.h"
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#include <QMessageBox>
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ffmpegvideoDlg::ffmpegvideoDlg(QWidget *parent)
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: QWidget(parent)
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@ -7,25 +8,25 @@ ffmpegvideoDlg::ffmpegvideoDlg(QWidget *parent)
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{
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ui->setupUi(this);
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iniWindow();
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ffmpeg = new Cffmpeg_decode;
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// this->resize(640,480);
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}
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ffmpegvideoDlg::~ffmpegvideoDlg()
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{
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if(ffmpeg->isRunning()){
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stop();
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}
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delete ffmpeg;
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stop();
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delete ui;
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}
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void ffmpegvideoDlg::iniWindow()
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{
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}
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QString VideoFilePath = QDir::currentPath()+"./Video";
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QDir VideoDir (VideoFilePath);
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if(!VideoDir.exists())
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{
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VideoDir.mkdir(VideoFilePath);
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qDebug()<<"文件夹创建成功";
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}
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}
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void ffmpegvideoDlg::setUrl(QString url)
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{
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ffmpeg->setUrl(url);
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@ -33,61 +34,86 @@ void ffmpegvideoDlg::setUrl(QString url)
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void ffmpegvideoDlg::play()
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{
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QString VideoFilePath = QDir::currentPath()+"./Video";
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QDir VideoDir (VideoFilePath);
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if(!VideoDir.exists())
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{
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VideoDir.mkdir(VideoFilePath);
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qDebug()<<"文件夹创建成功";
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}
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if(!m_PlayStatus)
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{
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connect(ffmpeg,SIGNAL(sendQImage(QImage)),this,SLOT(receiveQImage(QImage)));
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connect(ffmpeg,&Cffmpeg_decode::finished,ffmpeg,&Cffmpeg_decode::deleteLater);
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}
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if(!ffmpeg->isRunning())
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{
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ffmpeg->start();
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m_PlayStatus = true;
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ffmpeg = new Cffmpeg_decode;
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ffmpeg->IsstopPlay = false;
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ffmpeg->moveToThread(&workerThread);
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connect(&workerThread,&QThread::finished,ffmpeg,&QObject::deleteLater); //线程发送结束标志
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connect(this, &ffmpegvideoDlg::operate, ffmpeg, &Cffmpeg_decode::run); //线程开始处理数据
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connect(ffmpeg,SIGNAL(sendQImage(QImage)),this,SLOT(receiveQImage(QImage))); //发送解析的图片
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connect(ffmpeg,SIGNAL(sendConnectFail(int)),this,SLOT(showMessagBox(int))); //发送错误信息提示
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workerThread.start();
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emit this->operate(); //启用线程信号
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}
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}
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void ffmpegvideoDlg::stop()
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{
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if(ffmpeg->isRunning() && !ffmpeg->IsstopPlay ){
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ffmpeg->IsstopPlay = true;
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ffmpeg->requestInterruption();
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ffmpeg->quit();
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ffmpeg->wait();
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ffmpeg = nullptr;
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if(m_PlayStatus)
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{
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m_PlayStatus = false;
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ffmpeg->IsstopPlay = true; //线程结束标志
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workerThread.quit(); //线程退出时自动delete线程里的类
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workerThread.wait();
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img.fill(Qt::black);
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}
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img.fill(Qt::black);
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}
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//绘图事件
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void ffmpegvideoDlg::paintEvent(QPaintEvent *)
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{
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QPainter painter(this);
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painter.drawImage(0,0,img);
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painter.drawImage(m_ax,m_ay,img);
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}
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//区域大小改变事件
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void ffmpegvideoDlg::resizeEvent(QResizeEvent *event)
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{
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//区域1920*1080自适应
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double VideoAreaHeight = this->height();
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double VideoAreaWidth = this->width();
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//高度值相对比较大
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if(VideoAreaHeight*16>VideoAreaWidth*9)
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{
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m_setVideoAreaWidth = VideoAreaWidth;
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m_setVideoAreaHeight = VideoAreaWidth*9/16;
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m_ax = 0;
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m_ay = 0.5*(VideoAreaHeight-m_setVideoAreaHeight);
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}
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//宽度值相对比较大
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else
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{
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m_setVideoAreaHeight = VideoAreaHeight;
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m_setVideoAreaWidth = VideoAreaHeight*16/9;
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m_ax = 0.5*(VideoAreaWidth-m_setVideoAreaWidth);
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m_ay = 0;
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}
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}
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void ffmpegvideoDlg::receiveQImage(const QImage &rImg)
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{
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img = rImg.scaled(this->size());
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//img = rImg.scaled(this->size());
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QSize imgsize(m_setVideoAreaWidth,m_setVideoAreaHeight);
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img = rImg.scaled(imgsize);
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update();
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}
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//显示不同提示消息
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void ffmpegvideoDlg::showMessagBox(int type)
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{
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switch (type) {
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case 1:
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QMessageBox::information(NULL,tr("提示"),"获取视频失败",QMessageBox::Ok);
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break;
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default:
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break;
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}
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}
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bool ffmpegvideoDlg::Isplay(bool IsstopPlay)
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{
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return ffmpeg->IsstopPlay = IsstopPlay;
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}
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caoyuhui
7 months ago