gsm.h
上传用户:shw771010
上传日期:2022-01-05
资源大小:991k
文件大小:1k
- /*
- * 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.
- */
- #ifndef GSM_H
- #define GSM_H
- #include <stdio.h> /* for FILE * */
- /*
- * 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
- gsm gsm_create (void);
- /* Added for libsndfile : May 6, 2002 */
- void gsm_init (gsm);
- void gsm_destroy (gsm);
- int gsm_print (FILE *, gsm, gsm_byte *);
- int gsm_option (gsm, int, int *);
- void gsm_encode (gsm, gsm_signal *, gsm_byte *);
- int gsm_decode (gsm, gsm_byte *, gsm_signal *);
- int gsm_explode (gsm, gsm_byte *, gsm_signal *);
- void gsm_implode (gsm, gsm_signal *, gsm_byte *);
- #endif /* GSM_H */