pyqt5+opencv实现视频播放组件，支持实时流播放

pyqt5+opencv实现视频播放

详细源码链接为：https://github.com/2500284064/pyqt5-opencv-video
基本原理是通过 VideoCapture 类读取视频源的每一帧数据，将数据转化为图片展示在QWidget中

（pyqt5网上资料太少，一开始查到用 vlc 做视频控件，走了很多弯路，后面发现 opencv 用来做视频控件更方便，而且opencv 的功能更加全面）

直接贴代码

import time
import sys

from PyQt5.QtCore import *
from PyQt5.QtGui import *
from PyQt5.QtWidgets import *
from cv2 import *


class VideoBox(QWidget):

    VIDEO_TYPE_OFFLINE = 0
    VIDEO_TYPE_REAL_TIME = 1

    STATUS_INIT = 0
    STATUS_PLAYING = 1
    STATUS_PAUSE = 2

    video_url = ""

    def __init__(self, video_url="", video_type=VIDEO_TYPE_OFFLINE, auto_play=False):
        QWidget.__init__(self)
        self.video_url = video_url
        self.video_type = video_type  # 0: offline  1: realTime
        self.auto_play = auto_play
        self.status = self.STATUS_INIT  # 0: init 1:playing 2: pause

        # 组件展示
        self.pictureLabel = QLabel()
        init_image = QPixmap(