Using camconst.json in Filmulator

Software RawTherapee
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#1

I’m planning on using RawTherapee’s camconst.json as a source of data for Filmulator, specifically for white saturation points for the time being.

Is the dev branch of RawTherapee on GitHub the canonical place for it, if I have a button auto-download it?

#2

I am not saying that you have a library which could be the canonical shared source for it.

#3

In RawTherapee the dev branch on GitHub is the canonical place for it :wink:

#4

Now to figure out how I’m going to make use of it…

I might have it be loaded into the SQLite database for easier querying instead of reading through it at startup…

#5

You probably already figured out it is not strict JSON, as there are comments in the file, which is not allowed. Something to take into account when parsing the file…

#6

Actually I had no idea, because I have never dealt with JSON before.

I was hoping I could just use Qt’s library for parsing it, but maybe not…

#7

I include camconst.json with rawproc, and I use Dave Gamble’s cJSON library to read it.

It seems to ignore the comments just fine…

Edit: Oh, that’s also what RawTherapee uses… :laughing:

1 Like
#8

Happened upon this on Hacker News…

“To be safe allocate 5 bytes more than you need”

2 Likes
#9

I don’t use that function, I think it’s only needed if you intend to print the data structure.

Here’s my code: