Open Source Summit Europe 2025 - Amsterdam

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Curated by: The Linux Foundation (287 videos)


Currently Playing: Video4Zephyr: From Basic APIs Towards a Full-fledged Video Subsystem - Phi Bang Nguyen

Don't miss out! Join us at the next Open Source Summit in Seoul, South Korea (November 4-5). Join us at the premier vendor-neutral open source conference, where developers and technologists come together to collaborate, share knowledge, and explore the latest innovations and advancements in open source technology. Learn more at https://events.linuxfoundation.org/ Video4Zephyr: From Basic APIs Towards a Full-fledged Video Subsystem - Phi Bang Nguyen, NXP Semiconductors Originally introduced in 2019, the Video4Zephyr (v4z) APIs provided a foundational interface for interacting with video devices in Zephyr. However, with minimal changes over the years, their limitations have become apparent—especially as video hardware grows more complex and camera-based applications become increasingly demanding. This talk presents the current status of v4z, hightlighting recent improvements as well as sharing ongoing and upcomming works which turns the v4z from a simple driver API into a robust video subsystem. We’ll cover the devicetree video port/endpoint mechanism, a unified video control framework, enhanced buffer management, and support for memory-to-memory (m2m) devices, etc. These efforts aim to shift commont functionality and logic into the subsystem itself, significantly reduce the burden on driver developers - bringing the Zephyr’s video stack closer to a mature multimedia framework.


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