gsm_explode(3) [debian man page]

GSM_EXPLODE(3)						     Library Functions Manual						    GSM_EXPLODE(3)

NAME

       gsm_explode, gsm_implode -- GSM 06.10 supplementary functions for testing

SYNOPSIS

       #include "gsm.h"

       void gsm_explode(g, frame, xframe)
       gsm	  g;
       gsm_frame  frame;
       gsm_signal xframe[ 76 ];

       void gsm_implode(g, xframe, frame)
       gsm	  g;
       gsm_signal xframe[ 76 ];
       gsm_frame  frame;

DESCRIPTION

       Gsm  is	an  implementation  of the final draft GSM 06.10 standard for full-rate speech transcoding.  Test data for implementations of this
       particular document can be bought and used to verify an implementation.

       The encoded test data uses a format different from what one would use to transmit frames with the least number of bits.	Gsm_explode()  and
       gsm_implode() convert between the internal, small, 33-byte format and the 76-word format used by the test data.

RETURN VALUE

       gsm_explode() returns -1 if the passed frame is invalid, else 0.

BUGS

       Please direct bug reports to jutta@cs.tu-berlin.de and cabo@cs.tu-berlin.de.

SEE ALSO

       gsm(3)

																    GSM_EXPLODE(3)

GSM_PRINT(3)						     Library Functions Manual						      GSM_PRINT(3)

NAME

       gsm_print -- GSM 06.10 supplementary function for debugging

SYNOPSIS

       #include "gsm.h" #include <stdio.h>

       int gsm_print(f, g, frame);
       FILE * f;
       gsm    g;
       gsm_frame frame;

DESCRIPTION

       Gsm is an implementation of the final draft GSM 06.10 standard for full-rate speech transcoding, a lossy speech compression algorithm.  The
       compressed form involves 76 variables with different numbers of significant bits packed into 33 bytes.

       If you are interested in investigating the details of this coding scheme, gsm_print() can be  used  to  dump  the  contents  of	individual
       gsm_frames to a file pointer provided by the application.

RETURN VALUE

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

EXAMPLE

       A single frame looks like this:
       LARc:   29  32  20  11  08  05  06  07
       #1:     Nc 0040	  bc 0	  Mc 1	  xmaxc 60
	       06 04 00 03 03 06 04 02 02 04 05 04 01
       #2:     Nc 0045	  bc 1	  Mc 1	  xmaxc 48
	       03 07 01 03 04 04 07 01 03 02 04 05 03
       #3:     Nc 0091	  bc 1	  Mc 1	  xmaxc 46
	       00 03 03 07 01 06 02 04 05 03 03 02 04
       #4:     Nc 0120	  bc 0	  Mc 1	  xmaxc 47
	       07 03 06 00 03 03 06 05 00 03 02 07 04

BUGS

       Please direct bug reports to jutta@cs.tu-berlin.de and cabo@cs.tu-berlin.de.

SEE ALSO

       gsm(3), gsm_explode(3)

																      GSM_PRINT(3)