Video for Linux

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Extract from V4L-DVB wiki: The V4L API is essentially a kernel interface for analog video capture and output drivers, and is applicable to most video streams that are not related to DVB devices ... or graphics cards -- though, the V4L API also entails a few oddities such as analog radio and RDS services. Examples of devices which fall within the scope of V4L are, amongst others, webcams, MPEG encoders/decoders, digital video streamers, analog TV tuners and video capture devices.

Installation

V4L core drivers are by default installed on APF27 configurations. APF9328 is currently not able to handle V4L compatible image capture streams.

Test

• V4L comes with a test driver called vivi that can be used to test your V4L applications:

# modprobe vivi
Linux video capture interface: v2.00
vivi: V4L2 device registered as /dev/video0
Video Technology Magazine Virtual Video Capture Board ver 0.5.0 successfully loaded.

• in target/demos/camera/ you will find a test application (derived from http://linuxtv.org/downloads/video4linux/API/V4L2_API/v4l2spec/capture.c)

Links

• V4L-DVB Wiki