【简便的PyQt5】制作一个极具特色的视频播放器

【简便的PyQt5】制作一个极具特色的视频播放器

写在前面

效果展示

开源代码

loadInputVideo.py

demo.py

---

写在前面

        实现了以下功能 ：

        ❤  PyQt5本地上传视频

        ❤  PyQt5配合OpenCv播放所有类型的视频

        ❤  PyQt5标签里文本居中

        ❤  PyQt5标签里文本重写

        ❤  视频可多次上传播放

效果展示

 

 

 

开源代码

loadInputVideo.py

# -*- coding: utf-8 -*-

# Form implementation generated from reading ui file 'loadInputVideo.ui'
#
# Created by: PyQt5 UI code generator 5.15.4
#
# WARNING: Any manual changes made to this file will be lost when pyuic5 is
# run again.  Do not edit this file unless you know what you are doing.


from PyQt5 import QtCore, QtGui, QtWidgets

class Ui_MainWindow(object):
    def setupUi(self, MainWindow):
        MainWindow.setObjectName("MainWindow")
        MainWindow.resize(872, 638)
        MainWindow.setStyleSheet("background-color:black;")
        self.centralwidget = QtWidgets.QWidget(MainWindow)
        self.centralwidget.setObjectName("centralwidget")
        self.pushButton = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton.setGeometry(QtCore.QRect(280, 550, 60, 60))
        self.pushButton.setMinimumSize(QtCore.QSize(60, 60))
        self.pushButton.setMaximumSize(QtCore.QSize(60, 60))
        self.pushButton.setStyleSheet("font: 11pt \"楷体\";\n"
        
"background-color:black;\n"
"color:red;\n"
"border-radius:30px;\n"
"border:2px groove blue;\n"
"border-style:outset;\n"
"")
        self.pushButton.setObjectName("pushButton")
        self.label_4 = QtWidgets.QLabel(self.centralwidget)
        self.label_4.setGeometry(QtCore.QRect(30, 40, 800, 450))
        self.label_4.setMaximumSize(QtCore.QSize(905, 650))
        self.label_4.setStyleSheet("color:red;\n"
"border-width:1px;\n"
"border-style:solid;\n"
"border-color:red;\n"
"background-color:black;\n"
"font: 18pt \"华文行楷\";")
        self.label_4.setObjectName("label_4")
        self.label_8 = QtWidgets.QLabel(self.centralwidget)
        self.label_8.setGeometry(QtCore.QRect(30, 500, 801, 41))
        font = QtGui.QFont()
        font.setFamily("楷体")
        font.setPointSize(13)
        font.setBold(False)
        font.setItalic(False)
        font.setWeight(50)
        self.label_8.setFont(font)
        self.label_8.setStyleSheet("font: 13pt \"楷体\";\n"
"color:red;\n"
"border-width:1px;\n"
"border-style:solid;\n"
"border-color:red;\n"
"background-color:black;")
        self.label_8.setText("")
        self.label_8.setObjectName("label_8")
        self.pushButton_2 = QtWidgets.QPushButton(self.centralwidget)
        self.pushButton_2.setGeometry(QtCore.QRect(500, 550, 60, 60))
        self.pushButton_2.setMinimumSize(QtCore.QSize(60, 60))
        self.pushButton_2.setMaximumSize(QtCore.QSize(60, 60))
        self.pushButton_2.setStyleSheet("font: 11pt \"楷体\";\n"
"background-color:black;\n"
"color:red;\n"
"border-radius:30px;\n"
"border:2px groove blue;\n"
"border-style:outset;\n"
"text-align:centet;")
        self.pushButton_2.setObjectName("pushButton_2")
        MainWindow.setCentralWidget(self.centralwidget)
        self.menubar = QtWidgets.QMenuBar(MainWindow)
        self.menubar.setGeometry(QtCore.QRect(0, 0, 872, 23))
        self.menubar.setObjectName("menubar")
        MainWindow.setMenuBar(self.menubar)
        self.statusbar = QtWidgets.QStatusBar(MainWindow)
        self.statusbar.setObjectName("statusbar")
        MainWindow.setStatusBar(self.statusbar)

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

    def retranslateUi(self, MainWindow):
        _translate = QtCore.QCoreApplication.translate
        MainWindow.setWindowTitle(_translate("MainWindow", "MainWindow"))
        self.pushButton.setText(_translate("MainWindow", "Load"))
        self.label_4.setText(_translate("MainWindow", "  Waiting for video..."))
        self.pushButton_2.setText(_translate("MainWindow", "Play"))

demo.py

import cv2
import shutil
import time
from scipy import signal
from PIL import Image
import matplotlib.pyplot as plt
import numpy as np

import sys
import os

from GuiData.loadInputVideo import Ui_MainWindow as playVideo

from PyQt5 import QtCore, QtGui, QtWidgets

from PyQt5.QtCore import Qt

class playVideoWindow(QtWidgets.QMainWindow, playVideo):

    def __init__(self):
        super(playVideoWindow, self).__init__()
        self.setupUi(self)

        self.cap = []
        self.videoName = ''

        # 居中
        self.label_8.setAlignment(Qt.AlignCenter)

        self.reSet_label('please load video...')

        self.timer_camera = QtCore.QTimer()
        self.timer_camera.setTimerType(Qt.PreciseTimer)

        self.pushButton.clicked.connect(self.load_video)
        self.pushButton_2.clicked.connect(self.play_video)

    def load_video(self):
        """ Slot function to start the progamme
                    """
        self.videoName, _ = QtWidgets.QFileDialog.getOpenFileName(self, "Open", "", "*.MOV;;*.avi;;*.mp4;;All Files(*)")
        self.label_4.repaint()
        self.label_4.setText('It is ready...')
        self.label_4.repaint()
        self.reSet_label('please click play button')

    def play_video(self):
        if self.videoName != "":
            self.cap = cv2.VideoCapture(self.videoName)
            self.timer_camera.start(1)
            self.timer_camera.timeout.connect(self.openFrame)

    def openFrame(self):
        """ Slot function to capture frame and process it
                            """
        if (self.cap.isOpened()):
            self.reSet_label('playing...')
            ret, self.frame = self.cap.read()
            if ret:
                frame = cv2.cvtColor(self.frame, cv2.COLOR_BGR2RGB)

                height, width, bytesPerComponent = frame.shape
                bytesPerLine = bytesPerComponent * width
                q_image = QtGui.QImage(frame.data, width, height, bytesPerLine,
                                 QtGui.QImage.Format_RGB888).scaled(self.label_4.width(), self.label_4.height())
                self.label_4.setPixmap(QtGui.QPixmap.fromImage(q_image))

            else:
                self.reSet_label('over!')
                self.label_4.repaint()
                self.label_4.setText('Waiting for video...')
                self.label_4.repaint()
                self.cap.release()
                self.timer_camera.stop()

    def reSet_label(self, text):
        self.label_8.repaint()
        self.label_8.setText(text)
        self.label_8.repaint()

# 使用案例
if __name__ == '__main__':
    app = QtWidgets.QApplication(sys.argv)
    contorller = playVideoWindow()
    contorller.show()
    sys.exit(app.exec_())

完毕！

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