GRAEC(1)

NAME
graec - compress or expand files

SYNOPSIS
graec [-3] [-b BYTES] [-d] [-j SAMPLES] [-m] [-n BITS] [-N] [-p] [-r BLOCKS] [-s] [-t] infile outfile

DESCRIPTION
Graec performs lossless compression and decompression with Golomb-Rice adaptive entropy coding as defined in the Space Data System recommended standard 121.0-B-3.

OPTIONS

-3  24 bit samples are stored in 3 bytes

-b BYTES
    internal buffer size in bytes

-d  decompress infile; if option -d is not used then compress infile

-j SAMPLES
    block size in samples

-m  samples are MSB first; default is LSB first

-n BITS
    bits per sample

-N  disable pre/post processing

-p  pad RSI to byte boundary

-r BLOCKS
    reference sample interval in blocks

-s  samples are signed; default is unsigned

-t  use restricted set of code options