January 2026 focused on advancing HDR support for Wayland in mpv, delivering a targeted feature in collaboration with the core team. The primary accomplishment was the Wayland HDR Output Handling Enhancement, aimed at improving luminance management and transfer characteristics for HDR content. The work includes prioritizing PQ transfer characteristics when applicable and refining min/max luminance scaling to ensure accurate HDR rendering on Wayland. Key context: - Repo: mpv-player/mpv - Commit: 96e64b0e70f0aa4e6594e8965c07cfc0e6911086 (wayland_common: scale preferred luminances) with co-authorship acknowledgment Impact: - Improves end-user HDR playback fidelity on Wayland, reducing color and brightness mismatches and enhancing overall viewing quality for HDR content. - Lays groundwork for more robust HDR handling in future mpv updates on Wayland, contributing to platform readiness and broader device support. Note on bugs: - No major bugs fixed reported for this repository in January 2026. Focus was on feature delivery and code quality improvements. Technologies/skills demonstrated: - Wayland protocol integration and color management - Luminance scaling and PQ transfer characteristics - Collaborative development with co-authorship attribution - Change in core rendering path with targeted commits

November 2025 performance summary: Delivered HDR Color Space Alignment for Wayland Output in mpv-player/mpv, aligning luminance values with libplacebo color space and adjusting the minimum and maximum luminance to libplacebo expectations, enabling accurate HDR representation and improved output handling on Wayland. This work enhances end-user visual fidelity, reduces HDR-related inconsistencies, and demonstrates cross-project color pipeline integration.

Concise monthly summary for 2025-05 highlighting the most impactful contributions and outcomes across the mpv project.

February 2025: Delivered targeted enhancements in Saghen/nixpkgs and mpv that improve user experience and maintainability on Wayland and keyboard configurations. Specifically, replaced libxkbcommon with xkeyboard_config for keyboard handling, updated build inputs with pkgconf to streamline keyboard-related settings, and stabilized Wayland OSD rendering by ensuring proper surface commit order and removing a no-op path. Together, these changes reduce user-reported issues, simplify future updates, and improve cross-desktop compatibility.