During January 2025, Lycheng Cheng focused on improving the stability of RTSP streaming in the opencv/opencv repository by addressing a regression in the FFmpeg video capture path. He fixed a conditional logic issue in C++ that previously prevented the default RTSP TCP preference from being applied when no capture options were specified, which had led to inconsistent streaming behavior. By refining the is-empty check and updating the capture flow, he enhanced reliability and predictability for downstream users. His work demonstrated a strong grasp of C++, FFmpeg, and video capture, contributing targeted code health improvements and reducing runtime variability across environments.