pfile wrote:i had the same question about the exposure lengths - would it make sense to have an option to just turn off all of those pre-frames if the exposure length is > some threshold? if you need to capture one frame and throw it away, can it be done at a shorter exposure? and for night photography AWB seems un-necessary. as for AGC, if the gain were exposed to the user we could just set it manually to whatever it needs to be for unity gain, or whatever works out best for the application.
Feel free to go and write your own app. raspistill can't be everything to everyone - it's just impossible.
In theory if you enable ONLY the stills port via MMAL, then you should be able to avoid the initial 2 frames used to feed preview, but you MUST specify exposure time and hope that analogue and digital gains are set to something sensible (I'm not sure -ISO will set things up as AGC is locked for stills captures). Adding -st for a stats pass would sort out AWB and digital gain for you.
pfile wrote:as it stands right now i can only take one image every 45s when the exposure length is set to 5.9s.
If you ignore timelapse mode and burst mode, then yes. Otherwise you should be able to achieve at least every 12secs, and if using raspividyuv you should get every 6 secs.
Software Engineer at Raspberry Pi Trading. Views expressed are still personal views.
I'm not interested in doing contracts for bespoke functionality - please don't ask.