Worked on the FFmpeg/FFmpeg repository to improve the reliability of XMV file processing by addressing end-of-file handling for zero-sized packets. Using C programming and video processing expertise, implemented a targeted patch in the avformat/xmv demuxer so that zero-sized packets at the end of XMV files now correctly signal end-of-file with AVERROR_EOF, rather than returning AVERROR_INVALIDDATA. This change reduces erroneous read failures during playback and in downstream pipelines, enhancing the robustness of XMV demuxing. The work focused on precise, maintainable code changes, demonstrating a methodical approach to bug fixing within a widely used multimedia framework.