Recent content by Sean Phelan

Hi Joseph - I'm guessing that you are not familiar with the Unix command line interface -- bash ssh, curl and other many other command-line utilities. These are accessed through a terminal emulator, not through a web browser. Adding a temperature display to a Dahua camera might be a good...

Josef - the RUT956 datasheet says that it uses the Busybox shell. So if you are comfortable with unix shell scripts and cron then it should be straightforward to follow the advice earlier in this thread, ie: create a shell script that gets the temperature and posts it to the camera's On Screen...

I have been using the VTO's internal SIP server. I was thinking about running a separate server; I've taken a quick look at Sip Witch, but I'll also look at PBX in a Box. Your approach -- client calls a single number that triggers the server to call multiple numbers -- sounds practical and...

I have been experimenting with a Dahua VTO2202F (PoE version) for a week or so. I've found a few nice features, several missing features and some stuff that is so weird that I think I must have misunderstood what's happening. The door station hardware is elegant and looks like it will last, and...

Hi -I have been experimenting with a VTO2202F for the last week or so. I just saw your message. I have had Linphone on a MacBook consistently making and receiving calls to the VTO with good quality 1-way video and 2-way audio. The only problem I have with Linphone is in initiating a video call...

Well.... I take the point about water and cables. But... two of these cameras are in Greece; the remainder are in the UK. There is no commonality among the cabling. And of course dodgy ethernet cables could be expected to cause frame errors and discards, which would be logged by the...

Hi - cabling is all new; less than two years old. Two of the five problem cameras are on the same PoE switch - a Tenda TEF1105P. I'm going to try swapping that for a smart switch with power mngt, etc. The other cameras all have completely different 12V feeds.

I'm running six Dahua cams in two locations: - 2x SD22404 running V2.623 - 2x IPC-HDBW2431 running V2.8 (PoE power) - 1x IPC-HFW1435SP running V2.8 - 1x IPC-HDBW4431 running V2.42 (PoE power) Only one of these is completely stable: the HDBW4431. The others all reboot several times a day...

How much of the entire exercise do you need or want to carry out with c++ ? My understanding is that updating OSD with the http API pretty much has to use 'digest' authentication. That is trivial in a scripting environment (e.g. curl in any Unix, or an analgous Windows utility). You could get...

Hi all Is there any definitive documentation of the current (or failing that, a relatively recent) version of Dahua HTTP API? The most recent documentation I have is an Amcrest-branded "Revision 2.12" document dated 2017-03-15. That runs to 256 pages, but must be at least two years behind...

Thanks Alastair and Tigerwillow. I should have mentioned that I did try 192.168.1.108 (no response) and portscanned across that and other Class Cs. But I did not try tcpdump/Wireshark/etc. so I'll look at that next. Cheers Sean

Hi all - I have a Dahua IPC-HDW2431R-ZS-B (IP67 4MP IR mini-dome) installed on an outside wall. After running happily for over a year it went offline a few days ago. The PoE hub showed it consuming power, and another camera showed it's IR leds were on, but it doesn't respond to pings and...

Progress! I can't persuade my VLC (3.0.6 Vetinari) to decode a file that just contains the octet stream from the camera. However, my initial ffmpeg tests used "ffmpeg version 2.8.15-0ubuntu0.16.04.1". I tried downloading the current ffmpeg snapshot ("ffmpeg version...

Aha; good idea. I just tried that, without success so far. It failed at HTTP auth, without ever getting an octet stream. My VLC installation doesn't seem to complete the HTTP Digest auth. It appears to send the initial request, receives a 401 response with the "WWW-Authenticate: Digest...

Woah.... this thread has moved a long way since my first question about an apparently damaged camera :) I just came back to say that the camera that I thought I had fried by connecting to 24V instead of 12V spent several months lying in a corner, then before throwing it out I tried patching...