# import cv2,os
# import time
# import subprocess as sp
# # 图片合并
# # def readImage():
# #     p1 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/a.jpg")
# #     p2 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/b.jpg")
# #     ret = cv2.add(p1, p2)
# #     cv2.imwrite(r"C:\Users\chenyukun\Pictures\Camera Roll\aa.jpg", ret)
# #
# # readImage()
# # https://opencv.apachecn.org/#/docs/4.0.0/2.1-tutorial_py_image_display
# if __name__ == "__main__":
#     # print(cv2.__version__)
#     # # 读取图像
#     # p1 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/a.jpg", 0) # 以灰度模式加载图像
#     # p2 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/b.jpg", 1) # **cv.IMREAD_COLOR**：加载彩色图像，任何图像的透明度都会被忽略，它是默认标志
#     # p3 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/b.jpg", -1) # 加载图像，包括 alpha 通道
#     # p4 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/a.jpg")
#     # p5 = cv2.imread("C:/Users/chenyukun/Pictures/Camera Roll/c.jpg")
#     # print(type(p5))
#     # ret = cv2.add(p4, p5)
#     # # 显示图像
#     # cv2.imshow('frame', p1)
#     # cv2.imshow('frame1', p2)
#     # cv2.imshow('frame2', p3)
#     # # 对显示窗口做调整，WINDOW_AUTOSIZE不可调整，WINDOW_NORMAL可调整窗口大小
#     # cv2.namedWindow('frame3', cv2.WINDOW_AUTOSIZE)
#     # cv2.imshow('frame3', ret)
#     # # 等待时间 按下任务键
#     # k = cv2.waitKey(1) & 0xFF
#     # if k == 27: #ESC退出
#     #     cv2.destroyAllWindows()
#     # elif k == ord('s'): # 's' 保存退出
#     #     # 保存图像
#     #     cv2.imwrite("C:/Users/chenyukun/Pictures/Camera Roll/d.jpg", ret)
#     #     cv2.destroyAllWindows()
#
#
#
#     # 视频入门
#     try:
#         cap = cv2.VideoCapture("rtmp://live.play.t-aaron.com/live/THSAf_hd") # 0：表示连接一台摄像机
#         print(cap.isOpened())
#         print(cap)
#     except Exception as e:
#         print(e)
#         raise e
#     print("aaaa")
#     # 有时，cap 可能没有初始化 capture。在这种情况下，此代码显示错误。你可以通过该方法 cap.isOpened() 检查它是否初始化。
#     # 如果它是 True，那么是好的，否则用 cap.open() 打开在使用。
#     fps = int(cap.get(cv2.CAP_PROP_FPS))
#     width = int(cap.get(cv2.CAP_PROP_FRAME_WIDTH))
#     height = int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT))
#     print(fps,width,height)
#     # # 设置宽
#     # print(cap.set(cv2.CAP_PROP_FRAME_WIDTH, 320))
#     # # 设置高
#     # print(cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 240))
#
#     # 声明编码器和创建 VideoWrite 对象
#     fourcc = cv2.VideoWriter_fourcc(*'mp4v')
#     out = cv2.VideoWriter('/home/DATA/dsp/ai/video/eee.mp4',fourcc, fps, (width, height))
#     command=['/usr/bin/ffmpeg',
#              '-y', # 覆盖输出文件
#              '-f', 'rawvideo', # 强迫采用格式fmt
#              '-vcodec','rawvideo',
#              '-pix_fmt', 'bgr24',
#              '-s', "{}x{}".format(640, 480),# 图片分辨率
#              '-r', str(25.0),# 视频帧率
#              '-i', '-',
#              '-c:v', 'libx264',
#              '-pix_fmt', 'yuv420p',
#              '-preset', 'ultrafast',
#              '-f', 'flv',
#              "rtmp://live.push.t-aaron.com/live/THSAb"]
#     # p = sp.Popen(command, stdin=sp.PIPE)
#     start = time.time()
#     while True:
#
#         try:
#             if not cap.isOpened():
#                 cap = cv2.VideoCapture("rtmp://live.play.t-aaron.com/live/THSAf_hd")
#                 continue
#                 # 一帧一帧捕捉
#             ret, frame = cap.read() # 返回一个 bool 值(True/False)。如果加载成功，它会返回True
#             if not ret:
#                 cap = cv2.VideoCapture("rtmp://live.play.t-aaron.com/live/THSAf_hd")
#                 continue
#             # print(ret) #True
#             # # 我们对帧的操作在这里
#             # gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
#             end = time.time()
#             print("bbbbbbbbb")
#             # p.stdin.write(frame.tostring())
#             # print("aaaaa")
#             out.write(frame)
#         except Exception as e:
#             raise e
#         # # 显示返回的每帧
#         # cv2.imshow('frame',gray)
#         # if cv2.waitKey(1) & 0xFF == ord('q'):
#         #     break
#     # 当所有事完成，释放 VideoCapture 对象
#     cap.release()
#     out.release()
#     cv2.destroyAllWindows()