S100 porting thread

waterwingz

reyalp
Just a reminder, "firm update" booting FI2 support is broken on this cam https://chdk.setepontos.com/d/12153/13

I just built a ps.fi2 file the normal way for the 1.02a firmware version of this camera. Works fine - firmware update method loads correctly.

So is this something specific to only a few firmware versions (possible but unlikely)? Or maybe an issue in the original porting process that nobody ever went back and looked at?

Edit : Patch file for 1.4.0 attached. Should we add to autobuild and look for testers?

s100_psfi2.patch

1.86KB

hwntw

waterwingz

philmoz
Can you see if this patch fixes the DNG files when set to 'Full' for the crop size.

Patched and tested all three "sizes". They all look good now - thanks!

Hi
I tried shooting DNG with my S100 using the HDR option from the top select wheel. This usually seems to shoot three exposures and then combine them, as a JPEG. I tried it with CHDK DNG set to on and it does produce a DNG file- but the results have a purple cast. Shooting single DNG files gives correct looking DNG. I looked at the DNG exceptions list and everything is set to off

waterwingz

hwntw
I tried shooting DNG with my S100 using the HDR option from the top select wheel.

It seems very unlikely that this will work, assuming that you were hoping to get an HDR image in DNG format. And trying to hook into the process such that CHDK can capture a buffer full of Raw image data that has been combined into an HDR image prior to conversion to JPG format would be a lot of work, assuming such a buffer even exists.

hwntw

waterwingz

hwntw
I tried shooting DNG with my S100 using the HDR option from the top select wheel.

It seems very unlikely that this will work, assuming that you were hoping to get an HDR image in DNG format. And trying to hook into the process such that CHDK can capture a buffer full of Raw image data that has been combined into an HDR image prior to conversion to JPG format would be a lot of work, assuming such a buffer even exists.

Intriguing tho. I also tested hi speed capture with DNG set to on. My S100 struggled to save more than one DNG, but on my Ixus 300 HS it runs like a train, with 8 DNG images saved. Does that seem like a difference in the way buffers are working?

hwntw

[unknown]
Looking at this, it seems we might be close to being able to play with "in camera" HDR algorithms now. (scripting or embedded C)

As a CHDK user, not a coder, this kind of thing is useful coded not scripted.
Do you think the recent changes made to DNG saving code for the Ixus 300 HS are relevant to the S100 inability to save DNG during Hi Speed capture?

waterwingz

hwntw
Do you think the recent changes made to DNG saving code for the Ixus 300 HS are relevant to the S100 inability to save DNG during Hi Speed capture?

I doubt it. But it's easy enough to run the file counter test script and ensure that the S100 is setup correctly. I'll take a look tonight on mine.

hwntw

Hello
After reading about exFAT on the forum I had a go with my S100 and it works. I used a 64gb card advertised as 170mbs speed. Fiddly as usual I got dual booting to work by using CHIMP and a few other formatting tools. I have no test data other than from my eyes, but RAW saving looks pretty speedy with this card setup. I ran into an error message about missing modules, CHIMP does not seem to load the complete CHDK dist onto the exFAT partition when using the twin partition method and it groans a bit while displaying a formatting message.

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