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  1. Dodutils

    Anyone familiar with the low level RTSP protocol?

    Well in fact Wireshark can show it, no problem (including deeper analysis/decsription of the RTSP protocol itself) but as you can see it is not as readable as SmartSniff, this is why I alwasy recommend this small SmartSniff freeware tool (part of excellent NirSoft utilities by the way) that is...
  2. Dodutils

    Anyone familiar with the low level RTSP protocol?

    I guess the second capture is your own code and see "Continuation" stick to the end of RTSP/1.0 strange, I don't know in which langage you are coding ... looks like no #0 at the end if you are coding C ;-) And bout the "Ack", do not look at it as it is part of low level TCP negociation protocol...
  3. Dodutils

    Anyone familiar with the low level RTSP protocol?

    Oh sorry... I am not english native so sometime I missread so the "full log" is the "good VLC" and the very first line is were you get stuck ? I would recommend you to make a network sniff capture of the VLC session and also your own session, if you are on windows, use Smartsniff (very small...
  4. Dodutils

    Anyone familiar with the low level RTSP protocol?

    I see you get "RTSP/1.0 401 Unauthorized" here is were you should retry with the good credentials Can you turn off camera RTSP authentication ? if no you'll have to deal with Basic or Digest Auth (Digest in this case) You get 401 error because it is the way camera tells you "I want...
  5. Dodutils

    Anyone familiar with the low level RTSP protocol?

    yes rtsp negociation is on 554 but during negociation camera will tell you ports to use and also you may get a token and also some cameras are buggy because they annouce they could do TCP whenever they cannot (had problem with low cost china Digoo cams).
  6. Dodutils

    Anyone familiar with the low level RTSP protocol?

    yes RTSP session are not always the same, you have the UDP/TCP port that can be random
  7. Dodutils

    WARNING DO NOT BUY FROM CCTVCAMBUY, they are spammers and scammers

    Best joke of the year ! ... Evil SPAM !
  8. Dodutils

    IR light - 5 model comparison

    1st and 2nd too strong, face is burned, camera do not handle it well.
  9. Dodutils

    Walk about wifi camera?

    Skype exists on smartphone and tablet too so if you need to regularly "move" during a call you'd better use them instead of a PC this is the simplest way
  10. Dodutils

    Walk about wifi camera?

    that is called Skype for smartphone ;-)
  11. Dodutils

    cancelling out IR leds reflecting on window glass

    Can you deactivate internal IR led and use external IR $10 little 4 x HIgh Power LEDS projector ? Also a trick you can try, put your camera in a box with one side missing and press the box on the glass, this should avoid reflection. YOu also have this Coating | IR antireflective glass |...
  12. Dodutils

    IR Cut Filters - please help a quasi newbie

    I already have different 850nm IR projectors and I also have one in a box like the 4 x High power LEDs but with a lot of small LEDs that produce a smoother light that avoid to "burn" too clse objetcs/faces but that do no go that far, also I have a few lens for the High power LED projector with...
  13. Dodutils

    IR Cut Filters - please help a quasi newbie

    That's what I thought, and such 880nm are not as usual than 850nm but it is interesting, I may by one 880nm filter and a projector for such wavelength to see the result or may be i'll find some video example on youtube...
  14. Dodutils

    IR Cut Filters - please help a quasi newbie

    So this mean if this filter really do its job it may not work well with usual 940nm or 850nm projectors and you'll have to purchase a 880nm projector if you want to turn internal IR ?
  15. Dodutils

    IR Cut Filters - please help a quasi newbie

    Sorry I am not english native, could you explain this sentence ?
  16. Dodutils

    IR Cut Filters - please help a quasi newbie

    Yes and whenever filtered this is why your smartphone can see the IR light emitted by IR TV Remote controllers coz the filter do its job 99% but still catch some ;-) And remember the old PTZ 640x480 Foscam models (still have one) for example or still today you have some of those TOP-201-like...
  17. Dodutils

    IR Cut Filters - please help a quasi newbie

    This kind of "soft" IR Filter is not something you find from public vendors, what you'll find are mechanical IR Cut cameras and if no IR Filter you'll get "purple colored" (rare nowadays except very low cost chinese or old models) and I will not bother him talking about difference between 940nm...
  18. Dodutils

    Energy usage for this type of system - Any thoughts

    do the math, all power informations should be on tech spec sheet you'll get the max value
  19. Dodutils

    IR Cut Filters - please help a quasi newbie

    Strange because automated IRCut filters is now the standard and the camera your linked is equiped with automated IRCut filter.
  20. Dodutils

    IR Cut Filters - please help a quasi newbie

    Automated IRCut filter permit to get normal colored pictures during daylight and black-white picture at night Static IR Cut fixed will show no picture at night because IR Light are stopped No IR Filter at all will produce strange "purple" color cast pictures If static IR Cut filter is fixed...
  21. Dodutils

    many cameras accessing same hd

    About your "green forever" problem, it will happen if you have too many videos in same folder (sub folders are not a matter) because it tries to read some informations like time lenght of the video and also create/get a thumbnail. So 2 solutions first you split your videos into multiple...
  22. Dodutils

    WiFi Extender & Bluetooth

    There are tons of mouse/keyboard sharing applications (MouseWithouBorder, Synergy, ShareMouse, Input Director...) some or free some are not, some are Windows only some are both Linux/Windows
  23. Dodutils

    Making my own PoE switch

    Video quality is indeed surprisingly good for analog, I went to IP cam for a long time ad never went back to analog since then but looks like they improved a lot.
  24. Dodutils

    Making my own PoE switch

    But you'll get worst picture than real 2MP IPCam because of analog convertion.
  25. Dodutils

    Making my own PoE switch

    oh my bad about the math I was not awake this morning I inverted the calculations (updated my comment) ;-) Do not take care about what they recommend but as I said you can use a 12V/2.5A power supply if you want, the camera will take what it needs (on contrary of voltage for which you cannot...
  26. Dodutils

    Making my own PoE switch

    12V with 8.6W max mean 0.71A max (that is the real values from Dahua web site I don't understand why you can't find them it's on their camera's tech spec page) http://www1.dahuasecurity.com/fr/products/hac-hfw2221r-z-ire6-1224.html Cat5 cables are supposed to be 24AWG minimum so 0.57A per...
  27. Dodutils

    Making my own PoE switch

    Do not mix up real PoE according to 802.3xx standard and Passive PoE injection those are two different things. The adapters you bought are Passive PoE Injectors meaning YOU inject power thru some 12V powersupply (can be as many amps you want, the camera will only use what it need). Real PoE...
  28. Dodutils

    Get PAID $$$$£££ Recovery My Dahua DH-NVR

    I am pretty sure that videos recorded on your HDD is still there you can mount it on a PC even if you have Windows (there are a few windows tools that can "mount" ext file system) and you'll see the files.
  29. Dodutils

    Open port problem

    You mean you have dynamic IP at home as many people you can use a DynDNS-like service but you'd better have a anti-hacking proof camera
  30. Dodutils

    Mini 12V UPS $15-$30

    Hi, I like digging for new electronic/technical stuff and I recently found an interesting product that is a mini 12V UPS that you connect between your 12V 5.5 Jack power transformer and the 12V system you need to power. Size is like any usual USB Powerbank, the battery inside seems to be a...
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