Help with the convert utility

[imagecorpis]

How, could someone give me a hand? I'm trying to convert 24-bit .bmp files into raw RGBA 5551 data. Can the convert utility handle this? What arguments should I use?

[anthony]

What do you mean by RGBA 5551 images?

[imagecorpis]

Whoops, forgot about this topic. The RGBA5551 I want to convert to is a 16-bit rgba format: 5 bits for each rgb channel plus one alpha bit. I'm using this format on a homebrew game on an older console and I was wondering if convert could help me convering images in a bunch of formats to this particular RGBA structure.

[anthony]

I believe "stream" can do this, but their is not more info on the -format option that controls the bit level output.