More Efficient Streaming using Linux DRM Modifiers
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55 (this month: 1)Creation date:
Sept. 26, 2023Speakers:
Nicolas DufresneLicense:
CC BY-SA 3.0Description
Have you ever heard of frame tiling or frame buffer compression? These, usually hardware-specific, formats are commonly used behind the scene to make your CODEC and GPU hardware run a lot faster. Until now, we have always tried to hide these formats from users. This would always lead to limitation and surprising side effects when the information was lost. Mis-negotiating these formats has resulted in many visual corruption issues with our original VA API decoders.
In this talk, we will discuss how Linux DRM Modifier is fixing these issues. You will learn the new negotiation method and the tool that has been developed to make this possible. You will learn how these formats can be used and applied to DMABuf exchanges between various Linux components like cameras, VA and V4L2 CODECs, GL Stack and of course Wayland and the Linux Display drivers.
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