FFMPEG播放 RTSP、RTMP视频流

#include <QSettings> #include "QPlayer.h" QPlayer::QPlayer(QWidget *parent) : QDialog(parent) { ui.setupUi(this); isLeftPressDown = false; dir = NONE; setMinimumHeight(100); setMinimumWidth(150); setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint); setMouseTracking(true); ui.label->setMouseTracking(true); this->setLayout(ui.gridLayout); connect(&mPlayThread, SIGNAL(setFrames(const QImage&)), this, SLOT(on_setFrames(const QImage&)), Qt::QueuedConnection); //rtsp流或者rtmp流 QSettings ini("./url.ini", QSettings::IniFormat); QString url = ini.value("app/url", "rtmp://58.200.131.2:1935/livetv/hunantv").toString(); mPlayThread.set(url); if (!mPlayThread.isRunning()) mPlayThread.start(); } void QPlayer::mouseReleaseEvent(QMouseEvent *event) { if (event->button() == Qt::LeftButton) { isLeftPressDown = false; if (dir != NONE) { this->releaseMouse(); this->setCursor(QCursor(Qt::ArrowCursor)); } } } void QPlayer::mousePressEvent(QMouseEvent *event) { switch (event->button()) { case Qt::LeftButton: isLeftPressDown = true; if (dir != NONE) { this->mouseGrabber(); } else { dragPosition = event->globalPos() - this->frameGeometry().topLeft(); } break; case Qt::RightButton: this->close(); break; default: QDialog::mousePressEvent(event); } } void QPlayer::mouseMoveEvent(QMouseEvent *event) { QPoint gloPoint = event->globalPos(); QRect rect = this->rect(); QPoint tl = mapToGlobal(rect.topLeft()); QPoint rb = mapToGlobal(rect.bottomRight()); if (!isLeftPressDown) { this->region(gloPoint); } else { if (dir != NONE) { QRect rMove(tl, rb); switch (dir) { case LEFT: if (rb.x() - gloPoint.x() <= this->minimumWidth()) rMove.setX(tl.x()); else rMove.setX(gloPoint.x()); break; case RIGHT: rMove.setWidth(gloPoint.x() - tl.x()); break; case UP: if (rb.y() - gloPoint.y() <= this->minimumHeight()) rMove.setY(tl.y()); else rMove.setY(gloPoint.y()); break; case DOWN: rMove.setHeight(gloPoint.y() - tl.y()); break; case LEFTTOP: if (rb.x() - gloPoint.x() <= this->minimumWidth()) rMove.setX(tl.x()); else rMove.setX(gloPoint.x()); if (rb.y() - gloPoint.y() <= this->minimumHeight()) rMove.setY(tl.y()); else rMove.setY(gloPoint.y()); break; case RIGHTTOP: rMove.setWidth(gloPoint.x() - tl.x()); rMove.setY(gloPoint.y()); break; case LEFTBOTTOM: rMove.setX(gloPoint.x()); rMove.setHeight(gloPoint.y() - tl.y()); break; case RIGHTBOTTOM: rMove.setWidth(gloPoint.x() - tl.x()); rMove.setHeight(gloPoint.y() - tl.y()); break; default: break; } this->setGeometry(rMove); } else { move(event->globalPos() - dragPosition); event->accept(); } } QDialog::mouseMoveEvent(event); } void QPlayer::region(const QPoint &cursorGlobalPoint) { QRect rect = this->rect(); QPoint tl = mapToGlobal(rect.topLeft()); QPoint rb = mapToGlobal(rect.bottomRight()); int x = cursorGlobalPoint.x(); int y = cursorGlobalPoint.y(); if (tl.x() + PADDING >= x && tl.x() <= x && tl.y() + PADDING >= y && tl.y() <= y) { // 左上角 dir = LEFTTOP; this->setCursor(QCursor(Qt::SizeFDiagCursor)); } else if (x >= rb.x() - PADDING && x <= rb.x() && y >= rb.y() - PADDING && y <= rb.y()) { // 右下角 dir = RIGHTBOTTOM; this->setCursor(QCursor(Qt::SizeFDiagCursor)); } else if (x <= tl.x() + PADDING && x >= tl.x() && y >= rb.y() - PADDING && y <= rb.y()) { //左下角 dir = LEFTBOTTOM; this->setCursor(QCursor(Qt::SizeBDiagCursor)); } else if (x <= rb.x() && x >= rb.x() - PADDING && y >= tl.y() && y <= tl.y() + PADDING) { // 右上角 dir = RIGHTTOP; this->setCursor(QCursor(Qt::SizeBDiagCursor)); } else if (x <= tl.x() + PADDING && x >= tl.x()) { // 左边 dir = LEFT; this->setCursor(QCursor(Qt::SizeHorCursor)); } else if (x <= rb.x() && x >= rb.x() - PADDING) { // 右边 dir = RIGHT; this->setCursor(QCursor(Qt::SizeHorCursor)); } else if (y >= tl.y() && y <= tl.y() + PADDING) { // 上边 dir = UP; this->setCursor(QCursor(Qt::SizeVerCursor)); } else if (y <= rb.y() && y >= rb.y() - PADDING) { // 下边 dir = DOWN; this->setCursor(QCursor(Qt::SizeVerCursor)); } else { // 默认 dir = NONE; this->setCursor(QCursor(Qt::ArrowCursor)); } } void QPlayer::on_setFrames(const QImage& img) { QImage imageScale = img.scaled(QSize(ui.label->width(), ui.label->height())); QPixmap pixmap = QPixmap::fromImage(imageScale); ui.label->setPixmap(pixmap); }