我一直在尝试使用金字塔框架来流传输我的网络摄像头。问题是生成的对象是一个生成器对象，当我在视图中传递它时，我确实在route（/video_feed）处获得了视频流，但它滞后了很多。有人知道吗？
下面是它的代码块

from pyramid.response import Response
from pyramid.view import view_config

from sqlalchemy.exc import DBAPIError

from ..models import MyModel
import cv2

class VideoCamera(object):
    def __init__(self):
        self.video = cv2.VideoCapture(0)

    def __iter__(self):
        return self

    def close(self):
        self.video.release()

    def get_frame(self):
        success,image = self.video.read()
        ret, jpeg = cv2.imencode('.jpg', image)
        return jpeg.tobytes()

    __next__=get_frame

@view_config(route_name='home', renderer='templates/stream.jinja2')
def my_view(request):
    return {'project': 'my_project'}

def generate(camera):
    while True:
        frame = camera.__next__()
        yield (b'--frame\r\n'
               b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n\r\n')

@view_config(route_name="video_feed")
def video(request):
    return Response(
        app_iter=generate(VideoCamera()),
        content_type="multipart/x-mixed-replace; boundary=frame")

救命啊！