can you tell me your setup?
parameters and the time between flashes that caused the problems you described.
I used the latest source from main repository to try your pre buffer version, all fresh and new source download, no changes to it other than adding my user file to main folder to make sure it was clean.
I compiled with pre made toolchain, I made the files in bolt_rec and raw_rec then compiled for my 550D
I thin set my camera to movie mode 1920x1080x30fps in canon menu, I then set bolt trigger to all your default settings first to try it and turn on raw rec with all its default settings and set up an A/C flash bulb, and I aim it at a grey wall so I get better spread like a sky, then I set my cam up 6 feet away and aim it at the wall.
I then start record and all seemed fine, I then fire the flash by remote, it sets off 1 single burst, and it detects it and records like it should, I then press record to stop and extract my RAW file to DNGs and never see the flash, its always frames before the flash and after that show, always misses the flash.
I tried with changing post frames from 10 to 5, 5 to 0, and still same results.
I tried switching to differ movie mode in Canon menu, I tried photo mode, I tried using differ preview mode in raw_rec, all same results.
The only one that records the flash and post frames is the one from the code I sent you that I changed a bit. No pre buffer either of coarse but at least the flash.
Maybe 550D handles it differ then your camera?
