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