kmc-4400 modprobe question

[dirkdiggler]

I have been trying to understand the information found at:
http://www.zoneminder.com/wiki/index.php/Kodicom_4400r

I am using the the 16 composite inputs on my card and want to edit the modprobe bttv.conf

I have used the suggested settting

options bttv gbuffers=16 card=133,132,133,133

but this is for the 4 inputs in the back of the card.

It suggest for composite inputs to "plug the additional BNC's onto the headers bearing in mind the first 4 are on the card. but the order of the channels is 1,2,3,4,9,8,5,4,13,12,11,10,15,14,7,6"

i am struggling with the syntax/format of how to write this for the composite inputs

Can anybody tell me the correct way to do this?

[dirkdiggler]

I figured this out. I did not need to change the bttv.conf file. I simply had to find out which of the 4 chips was the master (3 being slave drives). It is the master's path (eg. dev/video1) that is the one you need to specify in Zoneminder on this card (using the recommended bttv.conf settings). The master is the one identified at 132 in this file. Once you idenify the path to the master chip, you can simply choose each channel to specify the input. I have all 16 cameras (analog) working.

Update: Later I figured out that the inputs need to be spread out over the 4 video paths , otherwise I got very low fps (all 16 cameras on one chip). Also had to Video for linux 2, NTSC, YUV. Had to turn set auth relay to plain. Using ZM 1.25 and Ubuntu 12.10. Still not getting fps that I'd like, but I am getting 2.5 on a consistent basis. This issue has been discussed elsewhere on the forum specific to this card. I ordered a second card in order to reduce the load on each chip (from 4 cameras to 2 cameras per chip). This should double the fps. I will update after 2nd card installation.