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- .\"
- .\" Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
- .\" Universitaet Berlin. See the accompanying file "COPYRIGHT" for
- .\" details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
- .\"
- .PU
- .TH GSM_PRINT 3
- .SH NAME
- gsm_print \(em GSM\ 06.10 supplementary function for debugging
- .SH SYNOPSIS
- #include "gsm.h"
- #include <stdio.h>
- int gsm_print(f, g, frame);
- .br
- FILE * f;
- .br
- gsm g;
- .br
- gsm_frame frame;
- .SH "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.
- .PP
- 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.
- .PP
- .SH "RETURN VALUE"
- gsm_print() returns -1 if the frame is invalid, else 0.
- .SH EXAMPLE
- A single frame looks like this:
- .br
- .nf
- 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
- .nf
- .SH BUGS
- Please direct bug reports to jutta@cs.tu-berlin.de and cabo@cs.tu-berlin.de.
- .SH "SEE ALSO"
- gsm(3), gsm_explode(3)
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