利用pyside/pyQt实现视频播放器，并利用pyinstaller 打包发布

第一次用pyqt/pyside，遇到了很多问题。所有遇到的问题都是在视频发布这块遇到的，但最终还是成功了，在这里把遇到的问题总结一下。

读取视频中的帧，逐帧显示，显示的格式必须是Qimage,但是用cv2读取的帧格式是numpy array，必须把它转换成为Qimage，于是尝试了：

  1. 利用pyqtgraph: 

将numpy类型的frame通过pyqtgraph 转换为Qimage，随后通过setPixmap显示，程序在IDLE执行正确，但是在发布的时候，遇到了很多恶心的问题，由于是帮别人做，本人没有那么多时间去解决这个问题，于是采用了第二种办法。

                frame,stat=pyqtgraph.makeARGB(frame, lut=None, levels=None, scale=None, useRGBA=True)                frame=pyqtgraph.makeQImage(frame, alpha=None, copy=True ,transpose=False)#                                frame=QPixmap.fromImage(frame)                self.pictureLabel.setPixmap(frame)

2.利用PIL将图像保存，随后再通过Qimage读取，直接转换为Qimage格式：

但是用遇到了新的问题，通过cv2.VideoCapture("001.avi")读取的视频文件，通过下面的转化，颜色通道居然乱了，本人尝试过利用numpy.roll()将通道翻转，但效果不理想，而且减慢了速度，实在无奈~，于是有尝试了第三种办法

                frame=Image.fromarray(frame)                frame.save('2.jpg')                 self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))

3.利用cv2.cv.fromarray()转换读取的numpy帧，然后保存再读取~

这次成功了，通过pyinstaller打包以后终于可以正常显示了。

                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))

以上三种方法在IDLE中执行没有错误，就是在打包发布的时候遇到了错误。而且在包含pyqtgraph库的时候，打包发布过程中遇到了很多困难，最终迫使我放弃了使用pyqtgraph.

在利用pyinstaller打包的时候，也遇到了一些问题，本文用的是pyinstaller 2.1 版本.

首先cd进入pyinstaller  , python setup.py install, 随后执行 python pyinstaller  -F -w yourpy.py (-F是打包为一个文件，-w是windows版，没有小黑窗）。

建议在每一次打包之前都执行一次 python setup.py install （因此会避免很多麻烦）

在视频窗口的背景上放了一张图片，设为背景，如果他没有显示，在C:\Python27\Lib\site-packages\PyQt4\plugins找到imageformats这个文件夹，和exe放在一块，就行了，好了贴上程序：

程序有三个按钮，每个按钮按下去之后，会连续播放两个视频，再按一下会暂停。最终界面如下：

# -*- coding: utf-8 -*-from PySide.QtGui import * from PySide.QtCore import *import PySideimport sysimport cv2import timefrom PIL import Imageimport numpyclass MainWindow(PySide.QtGui.QWidget):        ##    video_list=[\##                r"d:\data\单井ch4扩散视频.mpeg",\##                r"d:\data\单井h2s扩散视频.mpeg",\##                r"d:\data\集气站ch4扩散视频.mpeg",\##                r"d:\data\集气站h2s扩散视频.mpeg",\##                r"d:\data\输气管线ch4扩散视频.mpeg",\##                r"d:\data\输气管线h2s扩散视频.mpeg",\##                ]        def __init__(self,parent = None):        PySide.QtGui.QWidget.__init__(self)        self.setWindowTitle(u'天然气泄漏fluent数值模拟视频演示')        self.status_1= 0 # 0: init 1:play vedio 2:camera        self.status_2= 0        self.status_3= 0        ##        self.video_1_0=self.video_list[0]##        self.video_1_1=self.video_list[1]##        self.video_2_0=self.video_list[2]##        self.video_2_1=self.video_list[3]##        self.video_3_0=self.video_list[4]##        self.video_3_1=self.video_list[5]##        self.video_1_0=r"d:\data\单井ch4扩散视频.mpeg"##        self.video_1_1=r"d:\data\单井h2s扩散视频.mpeg"##        self.video_2_0=r"d:\data\集气站ch4扩散视频.mpeg"##        self.video_2_1=r"d:\data\集气站h2s扩散视频.mpeg"##        self.video_3_0=r"d:\data\输气管线ch4扩散视频.mpeg"##        self.video_3_1=r"d:\data\输气管线h2s扩散视频.mpeg"####        self.video_1_0=r"d:\data\001.mpeg"        self.video_1_1=r"d:\data\002.mpeg"        self.video_2_0=r"d:\data\003.mpeg"        self.video_2_1=r"d:\data\004.mpeg"        self.video_3_0=r"d:\data\005.mpeg"        self.video_3_1=r"d:\data\006.mpeg"                self.next_video_flag=False                                self.image = QImage()        #set video file        self.playCapture_1_0 = cv2.VideoCapture(self.video_1_0)        self.playCapture_1_1 = cv2.VideoCapture(self.video_1_1)        self.playCapture_2_0 = cv2.VideoCapture(self.video_2_0)        self.playCapture_2_1 = cv2.VideoCapture(self.video_2_1)        self.playCapture_3_0 = cv2.VideoCapture(self.video_3_0)        self.playCapture_3_1 = cv2.VideoCapture(self.video_3_1)        self.playButton_1 = QPushButton(u"输送管线")        self.playButton_2 = QPushButton(u"单井")        self.playButton_3 = QPushButton(u"集气站")               vbox = QVBoxLayout() #vertical layout        vbox.addWidget(self.playButton_1)        vbox.addWidget(self.playButton_2)        vbox.addWidget(self.playButton_3)        self.pictureLabel = QLabel("picture")                hbox=QHBoxLayout()        hbox.addStretch(0)        hbox.addLayout(vbox)        hbox.addWidget(self.pictureLabel)        self.setLayout(hbox)        self.set_background()                   # set timeout        self.timer_1 = Timer() # save video        self.timer_2 = Timer() # save video        self.timer_3 = Timer() # save video        self.playTimer_1 = Timer("updatePlay()")        self.playTimer_2 = Timer("updatePlay()")        self.playTimer_3 = Timer("updatePlay()")                self.connect(self.playTimer_1, SIGNAL("updatePlay()"), self.PlayVideo_1)        self.connect(self.playTimer_2, SIGNAL("updatePlay()"), self.PlayVideo_2)        self.connect(self.playTimer_3, SIGNAL("updatePlay()"), self.PlayVideo_3)                #self.connect(exitButton, SIGNAL("clicked()"), app, SLOT("quit()"))        self.connect(self.playButton_1, SIGNAL("clicked()"), self.VideoPlayPause_1)        self.connect(self.playButton_2, SIGNAL("clicked()"), self.VideoPlayPause_2)        self.connect(self.playButton_3, SIGNAL("clicked()"), self.VideoPlayPause_3)            def set_background(self):        self.image.load(r"d:/data/background.jpg")        self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))       def PlayVideo_1(self):        if self.next_video_flag==False and self.status_1==1 and self.status_2!=1 and self.status_3!=1 :            stat,frame = self.playCapture_1_0.read()                        if stat==False:                self.next_video_flag=True            else :                #print 'frame'                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))        if self.next_video_flag==True and self.status_1==1 and self.status_2!=1 and self.status_3!=1 :            stat,frame = self.playCapture_1_1.read()            if stat==False:                self.next_video_flag=False                self.playTimer_1.stop()                self.timer_1.stop()                self.set_background()                self.status_1, playStr=(1,u"输送管线")                self.playButton_1.setText(playStr)                self.playCapture_1_0 = cv2.VideoCapture(self.video_1_0)                self.status_1=0            else :                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))               def PlayVideo_2(self):        if self.next_video_flag==False and self.status_2==1 and self.status_1!=1 and self.status_3!=1 :            stat,frame = self.playCapture_2_0.read()            if stat==False:                self.next_video_flag=True            else :                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))                      if self.next_video_flag==True and self.status_2==1 and self.status_1!=1 and self.status_3!=1 :            stat,frame = self.playCapture_2_1.read()            if stat==False:                self.next_video_flag=False                self.playTimer_2.stop()                self.timer_2.stop()                self.set_background()                self.status_2, playStr=(1,u"单井")                self.playButton_2.setText(playStr)                self.playCapture_2_0 = cv2.VideoCapture(self.video_2_0)                self.status_2=0            else :                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))                       def PlayVideo_3(self):        if self.next_video_flag==False and self.status_3==1 and self.status_2!=1 and self.status_1!=1 :            stat,frame = self.playCapture_3_0.read()            if stat==False:                self.next_video_flag=True            else :                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))                      if self.next_video_flag==True and self.status_3==1 and self.status_2!=1 and self.status_1!=1 :            stat,frame = self.playCapture_3_1.read()            if stat==False:                self.next_video_flag=False                self.playTimer_3.stop()                self.timer_3.stop()                self.set_background()                self.status_3, playStr=(1,u"集气站")                self.playButton_3.setText(playStr)                self.playCapture_3_0 = cv2.VideoCapture(self.video_3_0)                self.status_3=0            else :                frame=cv2.cv.fromarray(frame)                cv2.cv.SaveImage('2.jpg',frame)                self.image.load("2.jpg")                self.pictureLabel.setPixmap(QPixmap.fromImage(self.image))                      def VideoPlayPause_1(self):        self.playCapture_2_0 = cv2.VideoCapture(self.video_2_0)        self.playCapture_2_1 = cv2.VideoCapture(self.video_2_1)        self.playCapture_3_0 = cv2.VideoCapture(self.video_3_0)        self.playCapture_3_1 = cv2.VideoCapture(self.video_3_1)        self.status_1, playStr = ((1,u'暂停'),                                            (0,u"输送管线"),                                            (1,u'暂停'))[self.status_1]        self.playButton_1.setText(playStr)                if self.status_1 is 1: #play video            self.timer_1.stop()            self.playTimer_1.start()        else:            self.playTimer_1.stop()    def VideoPlayPause_2(self):        self.playCapture_1_0 = cv2.VideoCapture(self.video_1_0)        self.playCapture_1_1 = cv2.VideoCapture(self.video_1_1)        self.playCapture_3_0 = cv2.VideoCapture(self.video_3_0)        self.playCapture_3_1 = cv2.VideoCapture(self.video_3_1)        self.status_2, playStr = ((1,u'暂停'),                                            (0,u"单井"),                                            (1,u'暂停'))[self.status_2]        self.playButton_2.setText(playStr)                if self.status_2 is 1: #play video            self.timer_2.stop()            self.playTimer_2.start()        else:            self.playTimer_2.stop()                def VideoPlayPause_3(self):                self.playCapture_1_0 = cv2.VideoCapture(self.video_1_0)        self.playCapture_1_1 = cv2.VideoCapture(self.video_1_1)        self.playCapture_2_0 = cv2.VideoCapture(self.video_2_0)        self.playCapture_2_1 = cv2.VideoCapture(self.video_2_1)        self.status_3, playStr= ((1,u'暂停'),                               (0,u"集气站"),                               (1,u'暂停'))[self.status_3]        self.playButton_3.setText(playStr)                if self.status_3 is 1: #play video            self.timer_3.stop()            self.playTimer_3.start()        else:            self.playTimer_3.stop()class Timer(QThread):    def __init__(self, signal = "updateTime()", parent = None):        super(Timer, self).__init__(parent)        self.stoped = False        self.signal = signal        self.mutex = QMutex()            def run(self):        with QMutexLocker(self.mutex):            self.stoped = False        while True:            if self.stoped:                return                        self.emit(SIGNAL(self.signal))            time.sleep(0.04)                def stop(self):        with QMutexLocker(self.mutex):            self.stoped = True                def isStoped(self):        with QMutexLocker(self.mutex):            return self.stopedif __name__ == "__main__":    import PySide    app = QApplication(sys.argv)    main = MainWindow()    main.show()    sys.exit(app.exec_())