May-11-2020, 04:58 PM
Using mentioned below code I am trying to return video feed as well as some JSON data in response which will help me further in displaying the data in browser for a particular frame, but from
success, frame = cap.read()I am not able to fetch data from
variable successand share the data with API in which I am getting streamed data,
from flask import Flask, render_template, Response import cv2 app = Flask(__name__) # list of camera accesses cameras = [ "rtsp://username:password@ip_address:554/user=username_password='password'_channel=channel_number_stream=0.sdp", "rtsp://username:password@ip_address:554/user=username_password='password'_channel=channel_number_stream=0.sdp", ... ] def find_camera(list_id): return cameras[int(list_id)] def gen_frames(camera_id): cam = find_camera(camera_id) # return the camera access link with credentials. Assume 0? # cam = cameras[int(id)] cap = cv2.VideoCapture(cam) # capture the video from the live feed while True: # # Capture frame-by-frame. Return boolean(True=frame read correctly. ) success, frame = cap.read() # read the camera frame if not success: break else: ret, buffer = cv2.imencode('.jpg', frame) frame = buffer.tobytes() yield (b'--frame\r\n' b'Content-Type: image/jpeg\r\n\r\n' + frame + b'\r\n') # concat frame one by one and show result @app.route('/video_feed/<string:list_id>/', methods=["GET"]) def video_feed(list_id): return Response(gen_frames(list_id), mimetype='multipart/x-mixed-replace; boundary=frame') @app.route('/', methods=["GET"]) def index(): return render_template('index.html', camera_list=len(cameras), camera=cameras) if __name__ == '__main__': app.run()Suggestions will be really helpful