DC1394\_VLOOPBACK(1) User Commands DC1394\_VLOOPBACK(1)

# [NAME](#NAME)

dc1394\_vloopback - send format0 video to V4L vloopback device

# [SYNOPSIS](#SYNOPSIS)

**dc1394\_vloopback \[*--daemon*] \[*--pipe*] \[*--guid=camera-euid*] \[*--video1394=/dev/video1394/x*] \[*--vloopback=/dev/video0*] \[*--palette=yuv422|rgb24*] \[*--width=n*] \[*--height=n*]**

# [DESCRIPTION](#DESCRIPTION)

Sends format0 640x480 RGB to the vloopback input device so that it can be consumed by V4L applications on the vloopback output device.

# [OPTIONS](#OPTIONS)

[**--daemon**](#daemon)

run as a daemon, detached from console (optional).

[**--pipe**](#pipe)

write images to vloopback device instead of using zero-copy mmap mode (optional).

[**--guid**](#guid)

select camera to use (optional). default is first camera on any port.

[**--video1394**](#video1394)

specifies video1394 device to use (optional). default is /dev/video1394/<port#>.

[**--vloopback**](#vloopback)

specifies video4linux device to use (optional). default is to determine this automatically.

[**--palette**](#palette)

specify the video palette to use (optional). yuv422 (default) or rgb24.

[**--width**](#width)

set the initial width (default=640)

[**--height**](#height)

set the initial height (default=480)

[**--help**](#help)

print help message

# [BUGS](#BUGS)

This program is maintained by the DC1394 Package Mainteners' team <libdc1394-packaging@lists.sourceforge.net>.

The bugs related to libdc1394 and current packaging can be submitted here:

http://bugs.launchpad.net/~libdc1394-dev/

For bugs related to library implementation, please submit to libdc1394 developers: <libdc1394-dev@lists.sourceforge.net>.

# [AUTHOR](#AUTHOR)

This manual page was originally written by Peter De Schrijver <p2@debian.org> for the Debian GNU/Linux system (but may be used by others).

# [COPYRIGHT](#COPYRIGHT)

This manual page is maintained by the DC1394 Package Mainteners' team. The team members and other information can be found online at: http://launchpad.net/~libdc1394-dev

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Lesser General Public License, Version 2 or any later version published by the Free Software Foundation.

On Debian systems (like Ubuntu), the complete text of the GNU Lesser General Public License can be found in /usr/share/common-licenses/LGPL-2.

# [SEE ALSO](#SEE_ALSO)

[**dc1394\_reset\_bus**(1)](/man/os/libdc1394/dc1394_reset_bus.1)

February 2008 dc1394\_vloopback

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Document: dc1394_vloopback(1) from libdc1394 2.2.7-r5 (Chainguard OS)
Source: https://downloads.sourceforge.net/project/libdc1394/libdc1394-2/2.2.7/libdc1394-2.2.7.tar.gz