Update Dockerfile

Dockerfile

@@ -1,8 +1,8 @@
 FROM python:3.10
 
-# FIXED: Install the missing system dependency for OpenCV before doing anything else.
-# This must be run as root, which is the default user at the start of the build.
-RUN apt-get update && apt-get install -y libgl1-mesa-glx
+# FIXED: Added ffmpeg and other required libraries to the existing system dependency installation.
+# This is the only line that has been changed.
+RUN apt-get update && apt-get install -y libgl1-mesa-glx ffmpeg libsm6 libxext6
 
 ### Set up user with permissions
 # Set up a new user named "user" with user ID 1000