Update rtsp.launch.py

launch/rtsp.launch.py

@@ -1,10 +1,11 @@
 from launch import LaunchDescription
 from launch.actions import ExecuteProcess
+from ament_index_python.packages import get_package_share_directory
 import os
 
 def generate_launch_description():
-    home_dir = os.path.expanduser("~")
-    script_path = os.path.join(home_dir, 'ros2_ws/src/image2rtsp/python/rtsp.py')
+    pkg_share = get_package_share_directory('image2rtsp')
+    script_path = os.path.join(pkg_share, '../../../../src/image2rtsp/python/rtsp.py')
 
     return LaunchDescription(
         [