Le sam. 3 mars 2018 à 21:05, Seth Nickell <seth@xxxxxxxxxxxxxxxx> a écrit :
We have a non-hw-triggerable genicam that continuously outputs 30fps, but we only need to capture a small subset of those frames in response to a software trigger condition.
Could you suggest the best way to approach this problem with Aravis API-usage wise? Basically precise timing is most important to this application, I'd like to as-predictably-as-possible capture the very next frame after the moment I try to trigger.
I tried setting up an ArvStream with only two ArvBuffers, but there seems to be some latency in the pipeline because I'm getting frames 250ms delayed through this approach (=10 frames late at 30fps).
Ideally I don't want to do network transfer on frames that are NOT triggered, is there some way to accomplish this by using low-level Aravis APIs to capture frames directly?