我告诉他们,我需要用gstreamerhayo实现opencv,而不是如何在管道Gstreamer上使用opencv编写代码。 我们的想法是通过OpenCV获取图像和网络摄像头,并使用GStreamer处理一些过滤器。在
另外,如果我想告诉VideoCapture()从v4l2src device=/dev/video1获取数据,或者无法在v4l2src device=/dev/video0中写入数据(使用linux,我有一个disp虚拟视频,video0) 抛出以下错误
GStreamer:在手动管道中找不到appsink 在函数cvCaptureFromCAM_GStreamer中
import cv2
cv2.namedWindow('webCam')
cap = cv2.VideoCapture(1) # "v4l2src device=/dev/video1"
# cap.open("img/bg.avi")
if cap.isOpened():
ret, frame = cap.read()
else:
ret = False
print "problema aqui?"
while True:
#se toma cada frame
ret,frame = cap.read()
frame = cv2.flip(frame,1)
cv2.imshow('webCam', frame)
width = cap.get(cv2.CAP_PROP_FRAME_WIDTH)
height = cap.get(cv2.CAP_PROP_FRAME_HEIGHT)
# cv2.imwrite("/dev/video0", frame)
fourcc = cv2.VideoWriter_fourcc('m','p','4','v')
pathVid = "/dev/video0" # 'img/output2.avi'
# out = cv2.VideoWriter(pathVid, fourcc, 30, (width,height))
out = cv2.VideoWriter(pathVid, fourcc, 30, (640,480))
out.write(frame)
cv2.VideoWr
esc = cv2.waitKey(5) & 0xFF == 27
if esc:
break
cap.release()
cv2.destroyAllWindows()
目前没有回答
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