cam tcp mode

import numpy as np
import cv2
import sys
import base64
import urllib2
import time




class ipCamera(object):

    def __init__(self, url, user=None, password=None):
        self.url = url
        auth_encoded = base64.encodestring('%s:%s' % (user, password))[:-1]

        self.req = urllib2.Request(self.url)
        if not user==None:
            self.req.add_header('Authorization', 'Basic %s' % auth_encoded)

    def read(self):
        try:
            response = urllib2.urlopen(self.req)
            data = response.read()
            if data.find("Disconnect the other client and Take Over") > -1:
                raise Exception("Disconnect the other client and Take Over")
            img_array = np.asarray(bytearray(data), dtype=np.uint8)
            frame = cv2.imdecode(img_array, 1)
            return [True, frame]
        except Exception as e:
            print self.req.get_full_url()
            print str(e)
            if str(e) == "Disconnect the other client and Take Over":
                sys.exit(0)
            return [False, None]






blue  = (255,   0,   0)
green = (0  , 255,   0)
red   = (0  ,   0, 255)

white = (255, 255, 255)
yellow = (0, 255, 255)




ret = True
delay=40



vidsrc=sys.argv[1]
vidsrc=0
#vidsrc='http://192.168.137.226:8081/video'
vidsrc='http://192.168.137.226:8081/shot.jpg'
#vidsrc='http://192.168.137.226:8080/mjpegfeed?dummy=mjpeg'
#vidsrc='http://localhost:8000/fullbody1.jpg'
#delay=1



#cap = cv2.VideoCapture(vidsrc)
#print "testing open status: ", cap.isOpened()
cap = ipCamera(vidsrc)


faceCascade = cv2.CascadeClassifier(sys.argv[2])



#if vidsrc == 0:
#    delay=1
i=0

while ret:
    time.sleep(int(sys.argv[3]))
    ret, frame = cap.read()
    print "\ngot frame " + str(i) + "\n"
    #gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    gray = frame


    faces = faceCascade.detectMultiScale(
        gray,
        scaleFactor=1.1,
        minNeighbors=5,
        minSize=(30, 30),
        flags=cv2.cv.CV_HAAR_SCALE_IMAGE
    )


    facelist = [list(face) for face in faces]
    rect_color = red
    for face in facelist:
        (x, y, w, h) = face
        cv2.rectangle(frame, (x, y), (x+w, y+h), rect_color, 2)



    i = i + 1
    # cv2.imwrite("frames/frame-" + str(i) + ".png", frame)



    key1 = key2 = 'placeholder'
    cv2.imshow("myvideo", frame)
    # cap.set(CV_CAP_PROP_FPS, 25)
    key1 = cv2.waitKey(delay) & 0xFF
    # cv2.imshow("mygrayvideo", gray)
    # key2 = cv2.waitKey(delay) & 0xFF
    if key1 == ord('w') or key2 == ord('w'):
        delay = max(1, delay-1)
        print delay, "milliseconds per frame"
    if key1 == ord('s') or key2 == ord('s'):
        delay = delay + 1
        print delay, "milliseconds per frame"
    if key1 == ord('q') or key2 == ord('q'):
        break


# cap.release()
cv2.destroyAllWindows()