snavtclient =<

snavtclient OPTIONS

snavtclient(1) is free open source network client program for CCTV security surveillance digital video recorders (DVRs) manufactured by the AV TECH Corporation.

The following functionality is available:

• Displaying a DVR video stream.

• Controlling the DVR with a keyboard.

• Saving video frames to individual JPEG files.

• Setting DVR time and date from system time.

• Showing information about the DVR device.

-c, --channel=CHANNEL

Select specific video channel for display or capture. CHANNEL is typically a number from 1 to 16 (depending on how many channels your specific DVR model has available).

-j, --dumpjpeg=FILE

Dump video frame(s) to JPEG file(s) named by FILE. If FILE contains an @ character, it will be replaced with auto-incrementing six-digit sequence number starting from 000001.

--dumpcount=N

Define how many video frames to dump (default 1).

--dumpinterval=N

Define how frequently to dump video frames in seconds (default 1).

-H, --dvrhost=HOST

DVR hostname or IP (default 127.0.0.1).

-P, --dvrport=PORT

DVR port (default 80).

-u, --dvruser=USER

DVR login username (default admin).

-p, --dvrpass=PASS

DVR login password (default admin). Please note that command-line arguments are often visible in the process list to any other users of the same computer. Therefore using this option is not usually safe on multi-user systems. If PASS is specified as : (colon), snavtclient(1) will prompt the user for DVR login password on /dev/tty.

-h, --help

Print a list of available command-line options and exit.

-i, --info

Show various information about the DVR device.

-L, --license

Display the full software license.

-q, --quality=QUAL

Set image quality (0 = high, 1 = medium, 2 = low).

-r, --resolution=RESO

Set image resolution (0 = high, 1 = medium, 2 = low).

-d, --setdate

Set DVR date and time from operating system time.

-s, --show

Show video stream on screen.

--showasync

Use asynchronous surface updates for video display.

--showdoublebuf

Use double buffering for video display (if available).

-F, --showfullscreen

Use full screen mode for video display (if available).

--showhw

Use hardware acceleration for video display (if available).

--shownoframe

Do not display window decorations.

-S, --showskip=SKIP

Skip SKIP frames after each displayed frame (useful for systems with slow video rendering).

-T, --showtitle=TITL

Show TITL as video display window title.

-Y, --showydouble

Scale video frames vertically to double size (needed for half-frame video modes).

-v, --verbose

Output details about actions to stdout.

-V, --version

Print program version information and exit.

--videoinfo

Output details about video driver.

Many SDL video display options can be set through SDL specific environment variables which are described at <http://www.libsdl.org/cgi/docwiki.cgi/SDL_envvars>.

snavtclient(1) works in one of four operating modes. Exactly one of --show, --dumpjpeg, --setdate, --info or --videoinfo options must be specified.

Support for various different DVR models is currently very limited.

Copyright © 2008 Janne Snabb

This program comes with ABSOLUTELY NO WARRANTY. This is free software, and you are welcome to redistribute it under certain conditions. Please see the accompanying LICENSE and COPYING files or type snavtclient --license for full license terms.

Additional information is available at software web site: <http://snavtclient.epipe.com/>