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py_player_demo2.py
103 lines (87 loc) · 4.38 KB
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py_player_demo2.py
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from PyQt5.QtWidgets import *
from PyQt5.QtMultimedia import *
from PyQt5.QtGui import *
from PyQt5.QtCore import *
from PyQt5.QtMultimediaWidgets import QVideoWidget
from GUI import Ui_MainWindow
from myVideoWidget import myVideoWidget
import sys
class myMainWindow(Ui_MainWindow, QMainWindow):
def __init__(self):
super(Ui_MainWindow, self).__init__()
self.setupUi(self)
self.sld_video_pressed=False #判断当前进度条识别否被鼠标点击
self.videoFullScreen = False # 判断当前widget是否全屏
self.videoFullScreenWidget = myVideoWidget() # 创建一个全屏的widget
self.player = QMediaPlayer()
self.player.setVideoOutput(self.wgt_video) # 视频播放输出的widget，就是上面定义的
self.btn_open.clicked.connect(self.openVideoFile) # 打开视频文件按钮
self.btn_play.clicked.connect(self.playVideo) # play
self.btn_stop.clicked.connect(self.pauseVideo) # pause
self.btn_cast.clicked.connect(self.castVideo) # 视频截图
self.player.positionChanged.connect(self.changeSlide) # change Slide
self.videoFullScreenWidget.doubleClickedItem.connect(self.videoDoubleClicked) #双击响应
self.wgt_video.doubleClickedItem.connect(self.videoDoubleClicked) #双击响应
self.sld_video.setTracking(False)
self.sld_video.sliderReleased.connect(self.releaseSlider)
self.sld_video.sliderPressed.connect(self.pressSlider)
self.sld_video.sliderMoved.connect(self.moveSlider) # 进度条拖拽跳转
self.sld_video.ClickedValue.connect(self.clickedSlider) # 进度条点击跳转
self.sld_audio.valueChanged.connect(self.volumeChange) # 控制声音播放
self.btn_cast.hide()
def castVideo(self):
screen = QGuiApplication.primaryScreen()
cast_jpg = './'+QDateTime.currentDateTime().toString("yyyy-MM-dd hh-mm-ss-zzz")+'.jpg'
screen.grabWindow(self.wgt_video.winId()).save(cast_jpg)
def volumeChange(self, position):
volume= round(position/self.sld_audio.maximum()*100)
print("vlume %f" %volume)
self.player.setVolume(volume)
self.lab_audio.setText("volume:"+str(volume)+"%")
def clickedSlider(self, position):
if self.player.duration() > 0: # 开始播放后才允许进行跳转
video_position = int((position / 100) * self.player.duration())
self.player.setPosition(video_position)
self.lab_video.setText("%.2f%%" % position)
else:
self.sld_video.setValue(0)
def moveSlider(self, position):
self.sld_video_pressed = True
if self.player.duration() > 0: # 开始播放后才允许进行跳转
video_position = int((position / 100) * self.player.duration())
self.player.setPosition(video_position)
self.lab_video.setText("%.2f%%" % position)
def pressSlider(self):
self.sld_video_pressed = True
print("pressed")
def releaseSlider(self):
self.sld_video_pressed = False
def changeSlide(self, position):
if not self.sld_video_pressed: # 进度条被鼠标点击时不更新
self.vidoeLength = self.player.duration()+0.1
self.sld_video.setValue(round((position/self.vidoeLength)*100))
self.lab_video.setText("%.2f%%" % ((position/self.vidoeLength)*100))
def openVideoFile(self):
self.player.setMedia(QMediaContent(QFileDialog.getOpenFileUrl()[0])) # 选取视频文件
self.player.play() # 播放视频
print(self.player.availableMetaData())
def playVideo(self):
self.player.play()
def pauseVideo(self):
self.player.pause()
def videoDoubleClicked(self, text):
if self.player.duration() > 0: # 开始播放后才允许进行全屏操作
if self.videoFullScreen:
self.player.setVideoOutput(self.wgt_video)
self.videoFullScreenWidget.hide()
self.videoFullScreen = False
else:
self.videoFullScreenWidget.show()
self.player.setVideoOutput(self.videoFullScreenWidget)
self.videoFullScreenWidget.setFullScreen(1)
self.videoFullScreen = True
if __name__ == '__main__':
app = QApplication(sys.argv)
vieo_gui = myMainWindow()
vieo_gui.show()
sys.exit(app.exec_())