Question

我使用QVideoWidget库的QMediaPlayer和PyQt5对象创建了媒体播放器。我正在尝试为视频上的透明对象或图像设置动画，我可以为图像对象设置动画，但它不是透明的。下面，我提供了一个最小的可复制代码：

import PyQt5.QtCore as C
import PyQt5.QtMultimedia as M
from PyQt5.QtMultimediaWidgets import QVideoWidget
from PyQt5.QtWidgets import QApplication, QMainWindow, QWidget, QVBoxLayout, QLabel, QFrame
from PyQt5 import QtGui
import sys
from PyQt5.QtCore import QAbstractAnimation, QEasingCurve, QPropertyAnimation, QRect

class Player(QMainWindow):
    def __init__(self, master=None):
        QMainWindow.__init__(self, master)
        
        self.widget = QWidget(self)
        self.setCentralWidget(self.widget)

        self.setWindowTitle("Media Player")
        url= C.QUrl.fromLocalFile("path to video")
        content= M.QMediaContent(url)
        self.player = M.QMediaPlayer()
        self.player.setMedia(content)

        video_widget = QVideoWidget()

        self.player.setVideoOutput(video_widget)
        self.player.play()
        vlayout = QVBoxLayout()
        vlayout.addWidget(video_widget)
        self.widget.setLayout(vlayout)

        pixmap = QtGui.QPixmap()
        pixmap.load("path to transparent image")
        my_label = QLabel(self)
        my_label.setPixmap(pixmap)
        my_label.setGeometry(300, 250, 100, 100)
        my_label.setFrameStyle(QFrame.NoFrame)
        my_label.setAttribute(C.Qt.WA_TranslucentBackground)

        self.anim = QPropertyAnimation(my_label, b"geometry")
        self.anim.setDuration(5000)
        self.anim.setStartValue(QRect(self.width() - my_label.height(), self.height() / 2 + my_label.height() /2,
                                      my_label.width(), my_label.height()))
        self.anim.setEndValue(QRect(my_label.height(), self.height() / 2 - my_label.height() /2,
                                      my_label.width(), my_label.height()))
        self.anim.setEasingCurve(QEasingCurve.InCubic)
        self.anim.start(QAbstractAnimation.DeleteWhenStopped)


app=QApplication(sys.argv)
player = Player()
player.resize(640, 480)
player.show()
player.player.stateChanged.connect( app.quit )
app.exec()

有人可以帮我弄清楚如何为视频上的透明对象/图像设置动画吗？

在PyQt5中通过视频对透明/半透明对象/图像进行动画处理

0 个答案: