diff --git a/RunCounting.py b/RunCounting.py
index ef64f85..b165afe 100644
--- a/RunCounting.py
+++ b/RunCounting.py
@@ -15,6 +15,7 @@ from flask import Flask
 from flask import jsonify
 from flask_cors import CORS, cross_origin
 import subprocess
+import ffmpeg
 
 t0 = time.time()
 
@@ -345,6 +346,7 @@ def PeopleCounter():
 		# show the output frame
 		# with lock:
 		ffmpeg_process.stdin.write(frame.astype(np.uint8).tobytes())
+		ffmpeg_process.communicate()
 
 			# outputFrame = frame.copy()
 		# cv2.imshow("Real-Time Monitoring/Analysis Window", frame)