The Problem We were building a camera monitoring system to process multiple RTSP streams simultaneously using Python, GStreamer, and multiprocessing. Each camera stream ran in its own process for isolation and performance. However, we kept encountering mysterious segmentation faults during GStreamer pipeline creation. The Stack Trace Fatal Python error: Segmentation fault Thread 0x00007fee8b7fe640 (most recent call first): File "stream_manager.py", line 135 in test_pipeline_startup File "stream_manager.py", line 168 in try_codec_fallback File "stream_manager.py", line 224 in start_stream File "rtsp_processor.py", line 114 in run File "camera_controller.py", line 115 in run_stream_processor File "/usr/lib/python3.10/multiprocessing/process.py", line 108 in run The crashes occurred when calling Gst.parse_launch() or pipeline.set_state(Gst.State.PLAYING). Our Original (Problematic) Code # camera_controller.py - BROKEN VERSION import multiprocessing import gi gi.require_version('Gst', '1.0') from gi.repository import Gst, GObject # GStreamer initialized