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tanidvr(1) tool for DVRs and IP cameras based on DVR-IP protocol used by Dahua tanidvr(1)

NAME

tanidvr - tool for DVRs and IP cameras based on DVR-IP protocol used by Dahua

SYNOPSIS

tanidvr -m <mode> -t <address> -u <user> -w <password> [OPTION]

DESCRIPTION

TaniDVR is a CLI tool for accessing DVRs and IP cameras used for CCTV surveillance systems based on the proprietary DVR-IP protocol (port 37777/TCP).

The main use of TaniDVR is to dump video from a device. With this, it can record to a Matroska (MKV) file or dump the video in realtime to play in an external player.

OPTIONS

0 - display DVR information. 1 - dump video.
IP/hostname.
Network port (default 37777).
DVR user (may not work if not admin!).
DVR password.
0-255 (default 0).
0 - main (default). 1 - secondary.
0 - common dialect (default). 1 - common dialect, while emulating OEM client behavior.
0 - DVR native: DHAV (.dav|.dhav) or RAW H.264 (depends on the DVR itself). 1 - Matroska (.mkv) (default).
<filename> (default: empty -- console stdout).
<mili_seconds> (default: 100ms). Send innocuous packets to the DVR in order to avoid the connection to be dropped gratuitously. To disable (not recommended), set to 0.
<mili_seconds> (default 5000ms). Inactivity timeout for DVR connection to be considered dead. A new DVR connection is started after this. To disable (not recommended), set to 0.
(default: not enabled). If defined, assumes NTSC field frequency to be 60Hz, instead of the typical 59.94Hz. Some cameras do generate exact 60Hz video. This switch does NOT affect PAL video.
0 - No correction will be performed to the buggy DHAV stream timestamps. 1 - Perform timestamp correction (default).
Prints help message and exit.

EXAMPLES

•
Show some information about the DVR.



              tanidvr -m 0 -t 192.168.0.12 -u admin -w secret1234
•
Record a video to a file.



              tanidvr -m 1 -t 192.168.0.12 -u admin -w secret1234 -c 2 -f camera2.mkv
•
Play the video in realtime with an external player.



              tanidvr -m 1 -t 192.168.0.12 -u admin -w secret1234 -c 2 | mplayer -cache 32 - 2>/dev/null
•
Simple media server and some clients. NOTE: INSECURE. NOT to be implemented as-is. It is shown only for didactic purposes.



              (server at 192.168.20.1)


              tanidvr -n 0 -m 1 -t 192.168.0.12 -u admin -w secret1234 -c 5 | ncat --broker -l 192.168.20.1 2000


              (clients ; same/other host)


              ncat --recv-only 192.168.20.1 2000 | dhav2mkv | mplayer -cache 32 -


              ncat --recv-only 192.168.20.1 2000 | dhav2mkv > channel_5_realtime_backup.mkv


              ncat --recv-only 192.168.20.1 2000 > channel_5_realtime_backup.dhav

AUTHOR

tanidvr was written by Daniel Mealha Cabrita <dancab@gmx.net>.

This manual page was written by Marcos Talau <marcos@talau.info> for the Debian project (but may be used by others).

18 Aug 2022 tanidvr-1.4.1