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[WxPython] Video in Gui
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[WxPython] Video in Gui
#8
I've adapted my project to PyQt5 but have failed on getting the video to work.
This version fails to "connect() failed between Thread.changePixmap[QImage] and setImage()" in line 76. I've done some other tests where I managed to get it to connect, but it failed with "Thread destroyed before being terminated" (or maybe the opposite of that).


from PyQt5 import QtCore, QtGui, QtWidgets
from pyqt_led import Led
from PyQt5.QtCore import pyqtSlot
import cv2
import socket
import time


class Thread(QtCore.QThread):
    changePixmap = QtCore.pyqtSignal(QtGui.QImage)
    def run(self):
        cap = cv2.VideoCapture('http://192.168.1.1:8080/?action=stream')
        while True:
            ret, frame = cap.read()
            if ret:
                # https://stackoverflow.com/a/55468544/6622587
                rgbImage = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
                h, w, ch = rgbImage.shape
                bytesPerLine = ch * w
                convertToQtFormat = QtGui.QImage(rgbImage.data, w, h, bytesPerLine, QtGui.QImage.Format_RGB888)
                p = convertToQtFormat.scaled(640, 480)
                self.changePixmap.emit(p)


class Ui_MainWindow(object):

    def setupUi(self, MainWindow):
        super().__init__()
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(800, 754)
        font = QtGui.QFont()
        font.setPointSize(10)
        MainWindow.setFont(font)
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")

        self.vlabel = QtWidgets.QLabel(self.centralwidget)
        self.vlabel.setGeometry(QtCore.QRect(80, 40, 640, 480))
        self.vlabel.setObjectName("vlabel")
        self.vlabel.move(80, 40)
        self.vlabel.resize(640, 480)

        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 800, 23))
        self.menubar.setObjectName("menubar")
        self.menuCar_Control_v = QtWidgets.QMenu(self.menubar)
        self.menuCar_Control_v.setObjectName("menuCar_Control_v")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)
        self.menubar.addAction(self.menuCar_Control_v.menuAction())

        self.retranslateUi(MainWindow)
        QtCore.QMetaObject.connectSlotsByName(MainWindow)

        self.initUI()

    @pyqtSlot(QtGui.QImage)
    def setImage(self, image):
        self.vlabel.setPixmap(QPixmap.fromImage(image))

    def initUI(self):
        th = Thread()
        th.changePixmap.connect(self.setImage)
        th.start()

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.vlabel.setText(_translate("MainWindow", "VLable"))
        self.menuCar_Control_v.setTitle(_translate("MainWindow", "Car Control v"))

if __name__ == "__main__":
    import sys
    app = QtWidgets.QApplication(sys.argv)
    MainWindow = QtWidgets.QMainWindow()
    ui = Ui_MainWindow()

    ui.setupUi(MainWindow)
    MainWindow.show()
    sys.exit(app.exec_())
Reply


Messages In This Thread
Video in Gui - by vscson - Aug-26-2019, 11:20 PM
RE: Video in Gui - by Larz60+ - Aug-27-2019, 04:37 AM
RE: Video in Gui - by Denni - Aug-27-2019, 12:52 PM
RE: Video in Gui - by metulburr - Aug-27-2019, 01:38 PM
RE: Video in Gui - by vscson - Aug-27-2019, 04:31 PM
RE: Video in Gui - by metulburr - Aug-27-2019, 05:24 PM
RE: Video in Gui - by vscson - Aug-27-2019, 05:42 PM
RE: Video in Gui - by vscson - Sep-03-2019, 05:18 PM
RE: Video in Gui - by Denni - Sep-04-2019, 02:34 PM
RE: Video in Gui - by vscson - Sep-04-2019, 05:44 PM
RE: Video in Gui - by Denni - Sep-04-2019, 06:33 PM
RE: Video in Gui - by Larz60+ - Sep-04-2019, 10:32 PM
RE: Video in Gui - by vscson - Sep-05-2019, 04:42 PM
RE: Video in Gui - by Denni - Sep-05-2019, 05:45 PM

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