我正在尝试从我的笔记本电脑的相机实现一个实时相机输入到this tutorial之后的Flask网站。
如果我在没有Flask的任何MTV框架的情况下运行应用程序，应用程序运行时没有错误，我可以看到流。但是当我将这个应用程序包含在我的MTV Flask项目中时，我看不到提要和应用程序出现以下错误：
(niravflask) C:\flaskproj\niravflask\svsflask>python svs.py
* Running on http://0.0.0.0:5000/ (Press CTRL+C to quit)
* Restarting with stat
127.0.0.1 - - [12/Aug/2015 12:16:21] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [12/Aug/2015 12:16:28] "GET /reguser HTTP/1.1" 200 -
127.0.0.1 - - [12/Aug/2015 12:16:36] "GET / HTTP/1.1" 200 -
127.0.0.1 - - [12/Aug/2015 12:16:44] "GET /reguser HTTP/1.1" 200 -
127.0.0.1 - - [12/Aug/2015 12:16:59] "GET /stream HTTP/1.1" 200 -
----------------------------------------
Exception happened during processing of request from ('127.0.0.1', 20347)
Traceback (most recent call last):
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\SocketServer.py", line 295, in _handle_request_nobl
ock
self.process_request(request, client_address)
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\SocketServer.py", line 321, in process_request
self.finish_request(request, client_address)
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\SocketServer.py", line 334, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\SocketServer.py", line 657, in __init__
self.finish()
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\SocketServer.py", line 716, in finish
self.wfile.close()
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\socket.py", line 279, in close
self.flush()
File "C:\Users\Nirav\AppData\Local\Enthought\Canopy\App\appdata\canopy-1.5.5.3123.win-x86_64\Lib\socket.py", line 303, in flush
self._sock.sendall(view[write_offset:write_offset+buffer_size])
error: [Errno 10053] An established connection was aborted by the software in your host machine
我不确定我的Flask MTY项目有什么问题。
这是我的Flask svs.py文件，它是主文件。即使我在流路由中删除r ender_template`调用并仅保留响应它仍然无效。
__author__ = 'Nirav'
#
from flask import Flask,render_template, url_for,request,redirect,flash,Response
from datetime import datetime
#from logging import DEBUG
from camera import VideoCamera
#Calls flask constructor for global application object
app = Flask(__name__)
#app.logger.setLevel(DEBUG)
app.config['SECRET_KEY']='\x98.\x80\xba1\xcc\x0cU\xd0\xdb\xd8\x9c8\x0e\xb1EgA\xb6\xde\x84\xcby\xf8\xb5\xed\xe5E\xaav\xed\x16'
userregister = []
def storuser(em,pass1,pass2,fname,lname):
userregister.append(dict(email=em,password1=pass1,password2=pass2,FirstName=fname,LastName=lname,datet = datetime.utcnow()
)
)
#This is view function
@app.route('/')
@app.route('/index')
@app.route('/Index')
#This your view
def index():
#render template render HTML template.
return render_template('index.html')
def gen(camera):
while True:
frame = camera.get_frame()
yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n\r\n')
@app.route('/stream')
def stream():
return Response(gen(VideoCamera()),mimetype='multipart/x-mixed-replace; boundary=frame')
return render_template('stream.html')
@app.route('/sucess')
def sucess():
return render_template('Sucess.html')
@app.route('/reguser',methods = ['GET','POST'])
def reguser():
if request.method == "POST":
femail = request.form['txtemail']
fpass1 = request.form['txtpass1']
fpass2 = request.form['txtpass2']
ffname = request.form['txtfname']
flname = request.form['txtlname']
storuser(femail,fpass1,fpass2,ffname,flname)
flash("User Registration Done:{}".format(femail))
#app.logger.debug("New register user detail:-"+fpass1)
return redirect(url_for('sucess'))
return render_template('UserRegister.html')
@app.errorhandler(500)
def server_err(e):
return render_template("500.html"),500
@app.errorhandler(404)
def pagenot_found(e):
return render_template("404.html"),400
if __name__ == '__main__':
app.run(host='0.0.0.0',debug=True)
# class user:
# def __init__(self,fname,lname):
# self.fname = fname
# self.lname =lname
#
# def __str__(self):
# return "{}.{}.".format(self.fname[0],self.lname[0])
#
# def initials(self):
# return "{}.{}.".format(self.fname[0],self.lname[0])
这是我从上面提到的博客中复制的相机文件。
import cv2
class VideoCamera(object):
def __init__(self):
# Using OpenCV to capture from device 0. If you have trouble capturing
# from a webcam, comment the line below out and use a video file
# instead.
self.video = cv2.VideoCapture(0)
# If you decide to use video.mp4, you must have this file in the folder
# as the main.py.
# self.video = cv2.VideoCapture('video.mp4')
def __del__(self):
self.video.release()
def get_frame(self):
success, image = self.video.read()
# We are using Motion JPEG, but OpenCV defaults to capture raw images,
# so we must encode it into JPEG in order to correctly display the
# video stream.
ret, jpeg = cv2.imencode('.jpg', image)
return jpeg.tobytes()
这是我希望在用户点击实时Feed时显示的stream.html文件。
{% extends "base.html" %}
{% block title %}
SVS Streaming Result.
{% endblock %}
{%block content%}
<article>
<h1>Your Live Streaming is done...</h1>
<img id="bg" src="{{ url_for('stream') }}">
</article>
{%endblock%}
请在这里帮助我。
答案 0 :(得分：0)
我终于可以使用简单的app装饰器来解决这个问题：
@app.route('/stream')
def stream():
return Response(gen(VideoCamera()),mimetype='multipart/x-mixed-replace; boundary=frame')
@app.route('/live')
def live():
return render_template('stream.html')