mirror of
https://github.com/signalwire/freeswitch.git
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59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
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/*
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* Copyright 1992 by Jutta Degener and Carsten Bormann, Technische
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* Universitaet Berlin. See the accompanying file "COPYRIGHT" for
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* details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE.
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*/
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#ifndef GSM_H
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#define GSM_H
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#include <stdio.h> /* for FILE * */
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/*
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* Interface
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*/
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typedef struct gsm_state * gsm;
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typedef short gsm_signal; /* signed 16 bit */
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typedef unsigned char gsm_byte;
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typedef gsm_byte gsm_frame[33]; /* 33 * 8 bits */
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#define GSM_MAGIC 0xD /* 13 kbit/s RPE-LTP */
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#define GSM_PATCHLEVEL 10
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#define GSM_MINOR 0
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#define GSM_MAJOR 1
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#define GSM_OPT_VERBOSE 1
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#define GSM_OPT_FAST 2
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#define GSM_OPT_LTP_CUT 3
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#define GSM_OPT_WAV49 4
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#define GSM_OPT_FRAME_INDEX 5
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#define GSM_OPT_FRAME_CHAIN 6
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gsm gsm_create (void);
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/* Added for libsndfile : May 6, 2002 */
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void gsm_init (gsm);
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void gsm_destroy (gsm);
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int gsm_print (FILE *, gsm, gsm_byte *);
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int gsm_option (gsm, int, int *);
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void gsm_encode (gsm, gsm_signal *, gsm_byte *);
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int gsm_decode (gsm, gsm_byte *, gsm_signal *);
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int gsm_explode (gsm, gsm_byte *, gsm_signal *);
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void gsm_implode (gsm, gsm_signal *, gsm_byte *);
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#endif /* GSM_H */
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/*
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** Do not edit or modify anything in this comment block.
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** The arch-tag line is a file identity tag for the GNU Arch
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** revision control system.
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**
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** arch-tag: 8cfc7698-5433-4b6f-aeca-967c6fda4dec
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*/
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