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102 lines
2.9 KiB
C++
102 lines
2.9 KiB
C++
#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), ui(new Ui::ffmpegvideoDlg) {
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ui->setupUi(this);
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iniWindow();
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}
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ffmpegvideoDlg::~ffmpegvideoDlg() {
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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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QString VideoFilePath = QDir::currentPath() + "./Video";
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QDir VideoDir(VideoFilePath);
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if (!VideoDir.exists()) {
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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) { ffmpeg->setUrl(url); }
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void ffmpegvideoDlg::play() {
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if (!m_PlayStatus) {
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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,
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&QObject::deleteLater); // 线程发送结束标志
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connect(this, &ffmpegvideoDlg::operate, ffmpeg,
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&Cffmpeg_decode::run); // 线程开始处理数据
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connect(ffmpeg, SIGNAL(sendQImage(QImage)), this,
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SLOT(receiveQImage(QImage))); // 发送解析的图片
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connect(ffmpeg, SIGNAL(sendConnectFail(int)), this,
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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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if (m_PlayStatus) {
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ffmpeg->stop();
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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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}
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// 绘图事件
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void ffmpegvideoDlg::paintEvent(QPaintEvent *) {
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QPainter painter(this);
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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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// 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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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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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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// 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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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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return ffmpeg->IsstopPlay = IsstopPlay;
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}
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