Thank you DDNI !
Originally Posted by DDNI
First, create an AVI file with 15-bit RGB uncompressed video,
and with the desired framerate. (Must be 320 pixels wide and max.
216 lines.) Save the audio as a separate uncompressed 8-bit WAV file.
(mono and stereo are both supported, sample rate must be less than 29KHz.)
Virtualdub is a good program for this purpose.
I've installed Virtualdub.
I could set the RESIZE filter to the wanted size (50% of the original size -> 312x176 ).
I could configure the framerate to 12 fps.
But I couldn't configure the CONVERT FORMAT filter to 15-bit RGB. It's only possible to convert to 32-bit RGB or YCbCr 12, 16 or 24.
How can I convert to 15-bit RGB using Virtualdub ?