qv4l2 - Man Page

qv4l2 [-R] [-h] [-d <dev>] [-r <dev>] [-V <dev>] [-S <dev>]

The qv4l2 tool is used to test video4linux capture and output devices, either video, vbi, radio or swradio. This application can also serve as a generic video/TV viewer application or as a video generator for video output devices.

However, it does not (yet) support compressed video streams other than MJPEG

-d,  --device=<dev>

Use device <dev> as the video device. If <dev> is a number, then /dev/video<dev> is used.

-V,  --vbi-device=<dev>

Use device <dev> as the vbi device. If <dev> is a number, then /dev/vbi<dev> is used.

-r,  --radio-device=<dev>

Use device <dev> as the radio device. If <dev> is a number, then /dev/radio<dev> is used.

-S,  --sdr-device=<dev>

Use device <dev> as the SDR device. If <dev> is a number, then /dev/swradio<dev> is used.

-R,  --raw

Open device in raw mode, i.e. without using the libv4l2 wrapper functions.

-h,  --help

Prints the help message.

On success, it returns 0. Otherwise, it will return the error code.

Report bugs to Hans Verkuil <hverkuil@xs4all.nl>