BS file format

Code example

Converting a still image to BS

Note that your image's width and height must be multiples of 16, as the size of a MDEC decoded macroblock is 16x16.

MC32 can convert these formats to BS : TIM, RGB, YUV.

Image > TIM with img2tim

Convert your image to a 24bpp TIM with img2tim:

img2tim -bpp 24 -o output.tim input.png

Then use MC32 as instructed below.

Result :

identify bace.tim 
bace.tim TIM 320x240 320x240+0+0 8-bit sRGB 230420B 0.000u 0:00.000

Image > RGB with imagemagick

You can convert your image to RGB with:

convert input.png RGB:output.rgb

Result :

identify -size 320x240 -depth 8 RGB:bace.rgb
RGB:bace.rgb=>bace.rgb RGB 320x240 320x240+0+0 8-bit sRGB 230400B 0.000u 0:00.003

Image > YUV422 UYVY with imagemagick

You can convert your image to YUV with:

convert input.png UYVY:output.yuv

Result :

dentify -size 320x240 UYVY:bace.yuv 
UYVY:bace.yuv=>bace.yuv UYVY 320x240 320x240+0+0 8-bit YCbCr 153600B 0.000u 0:00.005

TIM/RGB/UYVY > BS conversion

Use the MC32 tool conversion tool to import the image, specifying the right dimensions, and convert to bs with those settings :

Note that a BS image must have a width and height that is a multiple of 16

Input: RGB, Output: bs
MDEC version : 2
Custom: Size in sectors or (2048 * sector number) bytes, Variable frame size

MC32 bs conversion

Using the Command line

mc32.exe can be used from the command line with scripts. See here for more details ;

Sources & Refs

MC32 manual:, p.14 to 58

img2tim :
MC32 :

mdecnote :
PSX RGB and YUV format : , p.68

YUV pixel format : RGB pixelformat :

RGB<>YUV conversion formulas :