gsm.h
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上传日期:2013-07-25
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文件大小:2k
- /*
- * 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.
- */
- /*$Header: /cvsroot/vocal.modules/contrib/libsndfile-0.0.22/src/GSM610/gsm.h,v 1.2 2001/02/27 19:23:00 deepalir Exp $*/
- #ifndef GSM_H
- #define GSM_H
- #ifdef __cplusplus
- # define NeedFunctionPrototypes 1
- #endif
- #if __STDC__
- # define NeedFunctionPrototypes 1
- #endif
- #ifdef _NO_PROTO
- # undef NeedFunctionPrototypes
- #endif
- #ifdef NeedFunctionPrototypes
- # include <stdio.h> /* for FILE * */
- #endif
- #undef GSM_P
- #if NeedFunctionPrototypes
- # define GSM_P( protos ) protos
- #else
- # define GSM_P( protos ) ( /* protos */ )
- #endif
- /*
- * Interface
- */
- typedef struct gsm_state * gsm;
- typedef short gsm_signal; /* signed 16 bit */
- typedef unsigned char gsm_byte;
- typedef gsm_byte gsm_frame[33]; /* 33 * 8 bits */
- #define GSM_MAGIC 0xD /* 13 kbit/s RPE-LTP */
- #define GSM_PATCHLEVEL 10
- #define GSM_MINOR 0
- #define GSM_MAJOR 1
- #define GSM_OPT_VERBOSE 1
- #define GSM_OPT_FAST 2
- #define GSM_OPT_LTP_CUT 3
- #define GSM_OPT_WAV49 4
- #define GSM_OPT_FRAME_INDEX 5
- #define GSM_OPT_FRAME_CHAIN 6
- extern gsm gsm_create GSM_P((void));
- extern void gsm_destroy GSM_P((gsm));
- extern int gsm_print GSM_P((FILE *, gsm, gsm_byte *));
- extern int gsm_option GSM_P((gsm, int, int *));
- extern void gsm_encode GSM_P((gsm, gsm_signal *, gsm_byte *));
- extern int gsm_decode GSM_P((gsm, gsm_byte *, gsm_signal *));
- extern int gsm_explode GSM_P((gsm, gsm_byte *, gsm_signal *));
- extern void gsm_implode GSM_P((gsm, gsm_signal *, gsm_byte *));
- #undef GSM_P
- #endif /* GSM_H */