[Elphel-support] Single / Burst snapshots

Δημήτρης Ζαχαριάδης dzach at hol.gr
Wed Dec 14 06:56:17 PST 2011


Hi all

I've just received an Elphel Hammer camera and I am trying to set it up 
properly for mobile work. The main purpose of the camera is to capture 
still images from its two sensors and record them either on the internal 
CF memory cards or, on a host mobile computer over HTTP. With an 
existing application already used with other cameras, triggering and 
control occurs over HTTP.

The camera is required to have two triggered modes of operation and save 
files with a requested name/tag:

1. Single snapshot
2. Burst, with a predefined number of shots and FPS

I have implemented the burst mode using imgsrv calls in a loop, like 
(TCL code, 5 shots in a burst):

exec wget -q http://192.168.0.9:8081/towp/save
for {set i 0} {$i < 5} {incr i} {
     exec wget -q -O snap123_$i.jpeg 
http://192.168.0.9:8081/torp/wait/img/next/save
}

Question:
What could be used for saving the files to the HDD/CF card in the camera?

By reading the posts in here I understand that writing single files to 
the internal HDD/CF may have performance implications. However, camogm, 
if I understand correctly, does not have a single/burst snapshot option. 
How could one use camogm for this job?

Any help will be greatly appreciated.





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