Linux support for digital video broadcasting

Mauro Carvalho Chehab, the maintainer of the kernel's media subsystem, hasposted the first two in a series of articles on digital video broadcastingsupport in Linux. Part 1gives an overview of how the devices and protocols work, while part 2looks at digital TV network interface use. "Supporting embeddedDigital TV hardware is complex, considering that such hardware generallyhas multiple components that can be rewired in runtime to dynamicallychange the stream pipelines and provide flexibility for things likerecording a video stream, then tuning into another channel to see adifferent program. This article describes how the DVB pipelines are setupand the needs that should be addressed by the Linux Kernel."