Camera lags for few seconds

[sekulicb]

Hi. I have followed samples for creating Camera capture WPF application. Everything works well, but the camera feed lags for couple of seconds which to me is a big no no since we need it for capturing snapshots. What I mean by lag, is when you move for example something in front of the camera, the camera shows the movement but delayed for ~ 2 seconds. Any help on the matter ?

Thanks

[JohnSWatson]

Sorry I don’t use WPF so can’t offer any help.
Have you tried writing the time to the console before and after capturing a frame to determine if the delay is in the frame capture.

[andrewkirillov]

Try recently added PreferJpegEncoding property - it may help by enabling JPEG compression and so reduce amount of data transferred over USB bus.

See here
https://github.com/andrewkirillov/AForge.NET/blob/master/Sources/Video.DirectShow/VideoCaptureDevice.cs#L232

[sekulicb]

Hi @JohnSWatson no I haven't. I will try but if the delay is in the frame capture how that can be resolved?

@andrewkirillov How to set this property? Looking at the object of type VideoCaptureDevice but I don't see it?

[andrewkirillov]

You have to checkout the latest code from github and build it.