1GSM_PRINT(3)               Library Functions Manual               GSM_PRINT(3)
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NAME

6       gsm_print — GSM 06.10 supplementary function for debugging
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SYNOPSIS

9       #include "gsm.h" #include <stdio.h>
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11       int gsm_print(f, g, frame);
12       FILE * f;
13       gsm    g;
14       gsm_frame frame;
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DESCRIPTION

17       Gsm  is  an  implementation  of  the final draft GSM 06.10 standard for
18       full-rate speech transcoding, a  lossy  speech  compression  algorithm.
19       The  compressed  form  involves  76 variables with different numbers of
20       significant bits packed into 33 bytes.
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22       If you are interested in  investigating  the  details  of  this  coding
23       scheme,  gsm_print()  can  be  used  to dump the contents of individual
24       gsm_frames to a file pointer provided by the application.
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RETURN VALUE

27       gsm_print() returns -1 if the frame is invalid, else 0.
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EXAMPLE

30       A single frame looks like this:
31       LARc:   29  32  20  11  08  05  06  07
32       #1:     Nc 0040    bc 0    Mc 1    xmaxc 60
33               06 04 00 03 03 06 04 02 02 04 05 04 01
34       #2:     Nc 0045    bc 1    Mc 1    xmaxc 48
35               03 07 01 03 04 04 07 01 03 02 04 05 03
36       #3:     Nc 0091    bc 1    Mc 1    xmaxc 46
37               00 03 03 07 01 06 02 04 05 03 03 02 04
38       #4:     Nc 0120    bc 0    Mc 1    xmaxc 47
39               07 03 06 00 03 03 06 05 00 03 02 07 04
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BUGS

42       Please direct bug reports to jutta@pobox.com and cabo@tzi.org.
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SEE ALSO

45       gsm(3), gsm_explode(3)
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49                                                                  GSM_PRINT(3)
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