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allow specifying debug view fps and size

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Blake Blackshear 2020-03-03 20:25:21 -06:00
parent 777fb1d5d1
commit a60b9211d2
1 changed files with 11 additions and 6 deletions
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17
detect_objects.py
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@ -9,7 +9,7 @@ import multiprocessing as mp
import subprocess as sp import subprocess as sp
import numpy as np import numpy as np
import logging import logging
from flask import Flask, Response, make_response, jsonify from flask import Flask, Response, make_response, jsonify, request
import paho.mqtt.client as mqtt import paho.mqtt.client as mqtt
from frigate.video import track_camera from frigate.video import track_camera
@ -218,21 +218,26 @@ def main():
@app.route('/<camera_name>') @app.route('/<camera_name>')
def mjpeg_feed(camera_name): def mjpeg_feed(camera_name):
fps = int(request.args.get('fps', '3'))
height = int(request.args.get('h', '360'))
if camera_name in CONFIG['cameras']: if camera_name in CONFIG['cameras']:
# return a multipart response # return a multipart response
return Response(imagestream(camera_name), return Response(imagestream(camera_name, fps, height),
mimetype='multipart/x-mixed-replace; boundary=frame') mimetype='multipart/x-mixed-replace; boundary=frame')
else: else:
return "Camera named {} not found".format(camera_name), 404 return "Camera named {} not found".format(camera_name), 404
def imagestream(camera_name): def imagestream(camera_name, fps, height):
while True: while True:
# max out at 1 FPS # max out at specified FPS
time.sleep(1) time.sleep(1/fps)
frame = object_processor.get_current_frame(camera_name) frame = object_processor.get_current_frame(camera_name)
if frame is None: if frame is None:
frame = np.zeros((720,1280,3), np.uint8) frame = np.zeros((height,int(height*16/9),3), np.uint8)
frame = cv2.resize(frame, dsize=(int(height*16/9), height), interpolation=cv2.INTER_LINEAR)
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR) frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
ret, jpg = cv2.imencode('.jpg', frame) ret, jpg = cv2.imencode('.jpg', frame)
yield (b'--frame\r\n' yield (b'--frame\r\n'
b'Content-Type: image/jpeg\r\n\r\n' + jpg.tobytes() + b'\r\n\r\n') b'Content-Type: image/jpeg\r\n\r\n' + jpg.tobytes() + b'\r\n\r\n')