Ssa4 color values

[tin3tin]

I trying to add ssa4 subtitle export to DVD slideshow GUI, but I can't figure out how to convert to those color values of the ssa4 format(not RGB/HEX).

Anyone knows how it's done?

[J_Darnley]

From the SSA spec:
Field 4: PrimaryColour. A long integer BGR (blue-green-red) value. ie. the byte order in the hexadecimal equivelent of this number is BBGGRR

FF0000 Blue - 16711680
00FF00 Green - 65280
0000FF Red - 255

[tin3tin]

How do you convert from FF0000 to 16711680?

[DigitalDeviant]

Easiest way for me is to use the windows calculator (in scientific mode). Click on the Hex radio button, enter your hex value then click on the Dec button and poof.

[J_Darnley]

Mathematics:
15 * 16^5
+15 * 16^4
+0 * 16^3
+0 * 16^2
+0 * 16^1
+0 * 16^0

Or if using C/C++, print or scanf and variants.

[tin3tin]

@ J_Darnley

Great, thanks, this was what I needed to get DSG to export ssa4 files. :)