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Informative Article | Engineering Science | India | Volume 11 Issue 8, August 2022 | Popularity: 4.1 / 10

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V4L2 Mem-2-Mem as the Driver Framework for Your Video Processing IP

Karthik Poduval

Abstract: V4L2 M2M or mem2mem is a kernel framework that enables the use of V4L2 API for drivers of IP devices that classify themselves as memory-to-memory. This is different from the usual V4L2 output and capture devices which are memory-to-hardware or hardware-to-memory. This paper aims to explain the fundamentals of V4L2 M2M using a QEMU based virtual scaler example.

Keywords: Video4Linux2, V4L2, mem-2-mem, M2M, Linux Device Drivers

Edition: Volume 11 Issue 8, August 2022

Pages: 1510 - 1517

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