Worked on the FFmpeg/FFmpeg repository to enhance the robustness of the AAC audio encoder by addressing a specific edge-case bug. Focused on low-level programming in C, the developer implemented a targeted fix within the quantize_and_encode_band_cost_template function, clamping escape coefficient values to ensure they remained within the valid range. This adjustment prevented out-of-bounds errors during audio encoding, reducing the risk of crashes when processing diverse input scenarios. The work demonstrated a careful approach to audio encoding stability, emphasizing precise bug resolution over feature development, and contributed to the reliability of AAC stream handling in a widely used open-source multimedia framework.