Blue Iris Alert JPEG is taking from sub stream

[thebaoster]

I'm having some trouble trying set my alert to grab alerts to JPEG from main stream. When I go to the aiinput folder all I see is low quality jpeg files. If look at my directory I had to remove the sub stream from Video tab in order to get the correct jpegs size.

 

[bp2008]

I think you'll have to report this to Blue Iris support.

See below

 

[kgerst]

I am having this same issue. Please post if you find a fix and I will do the same.

 

[thebaoster]

You have to check the box "Pre-Trigger Buffer" and give it like 5 sec.

 

[fenderman]

This is what @thebaoster is referring to.
From the help file.
5.3.3 - October 1, 2020
When using dual-streaming, JPEG images will be created from the main-stream instead of
the sub-stream where possible. Rather than fully spooling up main-stream decoding, the
software uses the direct-to-disc pre-trigger frames buffer to synthesize these images. This
means you should specify at least enough pre-trigger time on the Record tab to span the
key-frame interval for your main-stream.

 

[kgerst]

Thank you both for the help!