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- GSM_PRINT(3) C Library Functions GSM_PRINT(3)
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- NAME
- gsm_print - GSM 06.10 supplementary function for debugging
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- SYNOPSIS
- #include "gsm.h" #include <stdio.h>
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- int gsm_print(f, g, frame);
- FILE * f;
- gsm g;
- gsm_frame frame;
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- DESCRIPTION
- Gsm is an implementation of the final draft GSM 06.10 stan-
- dard 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.
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- 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.
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- RETURN VALUE
- gsm_print() returns -1 if the frame is invalid, else 0.
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- 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
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- BUGS
- Please direct bug reports to jutta@cs.tu-berlin.de and
- cabo@cs.tu-berlin.de.
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- SEE ALSO
- gsm(3), gsm_explode(3)
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- SunOS 5.4 Last change: 1
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