Dialogic 6.2 Manual Do Utilizador

G3 Conversion Utility (g3cvt)

November 2009

417

Converts a raw fax file between any of these formats—MH, MR, 

MMR, PCX, and bitmap. It accepts files that use either MSB or LSB 

bit order, and (optionally) skips past a Brooktrout 128-byte header. 

Output from this utility does not contain a 128-byte Brooktrout 

header.

As it proceeds, g3cvt displays dots across the screen. If it detects an 

error in the input file, g3cvt displays an error message. With some 

input formats, g3cvt cannot continue after it encounters an input 

error. 

For bitmap conversion, this utility uses raw bitmap format. The -w 

option determines the number of bits per line, and the -b option 

determines the bit order. Raw bitmap format does not use 

start-of-image, end-of-line, or end-of-image marks.

When decoding MH or MR files, if this utility encounters an input 

line with errors, it writes a copy of the previous line in the output 

file.

To display usage information, type g3cvt without any arguments.

Where:

i_fmt

Format of the input file—MH, MR, MMR, PCX, or BIT.

i_file

Name of the input file.

o_fmt

Format of the output file—MH, MR, MMR, PCX, or BIT.

o_file

Name of the output file.

Options

-w<width>

Specifies the width of the lines; A4 (default), B4, or A3.

-b<b_o>

Specifies the bit order of both the input and output files – 

M (MSB), the default, or L (LSB).