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add latest jpg endpoint

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Blake Blackshear 2020-07-25 07:54:13 -05:00
parent 69f5249788
commit 1f03c8cb8c
1 changed files with 21 additions and 0 deletions
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21
detect_objects.py
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@ -360,6 +360,27 @@ def main():
else:
return "Camera named {} not found".format(camera_name), 404
@app.route('/<camera_name>/latest.jpg')
def latest_frame(camera_name):
if camera_name in CONFIG['cameras']:
# max out at specified FPS
frame = object_processor.get_current_frame(camera_name)
if frame is None:
frame = np.zeros((height,int(height*16/9),3), np.uint8)
height = int(request.args.get('h', str(frame.shape[1])))
width = int(height*frame.shape[1]/frame.shape[0])
frame = cv2.resize(frame, dsize=(width, height), interpolation=cv2.INTER_AREA)
frame = cv2.cvtColor(frame, cv2.COLOR_RGB2BGR)
ret, jpg = cv2.imencode('.jpg', frame)
response = make_response(jpg.tobytes())
response.headers['Content-Type'] = 'image/jpg'
return response
else:
return "Camera named {} not found".format(camera_name), 404
def imagestream(camera_name, fps, height):
while True:
# max out at specified FPS