limiting FPS with IP Camera

[frodoww 0]

Hi!

All IP cameras that I have seen so far, just send images as many as they can, until they fill up all available bandwidth.

 

As NVR, I like blueiris. Their only problem, for me, is that they suck any image they can get from the camera. The camera will use up all available bandwidth.

 

For resolution I can go as low as 640x480, and with H.263 I can salvage some bandwidth, but what I really need is to be able to limit the frames that the camera sends, to about 1 frame per 2 seconds.

 

Does any of you guys know of a camera that will let me do that? Or perhaps a NVR that will ask the camera for an image only once per 2seconds?

 

Thanks for your time!

[finalwish 0]

Dahua cameras have settings that you can specify the FPS.

[MaxIcon 0]

Most of my cameras - Vivotek, Dahua, Messoa, and IQInvision - let you set the frame rate, but I don't know if they'll all go to 1 FPS or less. Updated - My Areconts don't set the frame rate.

 

Note that h.264 doesn't necessarily provide a lot of benefit at that low a frame rate, as it's designed to send a keyframe, then only the changes until the next keyframe, and is meant to work at higher frame rates. With a super low frame rate, there may be a lot of changes from frame to frame, so you'll still be sending a lot of info per frame. Still, the compression may be better than MJPEG, depending on the codec.

 

I'm pretty sure you can configure Blue Iris to request a single snapshot on a once per few seconds timeline, but I haven't used that feature.

 

You might want to ask over at http://www.cam-it.org, which is where the best grassroots BI support is.

Edited October 3, 2012 by Guest

[frodoww 0]

Thanks for your replies.

I've read the sticky post about how to obtain those, seems not too easy.

 

What I'm doing now is see whats available in my area (Brazil) and then try to get the manual for the specific cam, and see if it lets me limit the FPS.

I found this Edimax 1520 DPG does what I want (according to its manual), but it hasn't got any night Leds for good night vision.

 

Since we don't have so many products here in Brazil to choose from, I recon I will just order them over the internets.

[frodoww 0]

Maxiconn, weird, I've played with BI quite a bit, but haven't been able to find that feature. Seems to me BI is really built to get all the info it can, and then set to work to process that info into whatever format you want it.

 

I'll scrounge the said forum, thanks!

[MaxIcon 0]

Yeah, I could be wrong about that - I believe it grabs JPG snapshots, but have never used it, so don't know about the settings.