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1 /* |
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2 * Copyright 1992 by Jutta Degener and Carsten Bormann, Technische |
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3 * Universitaet Berlin. See the accompanying file "COPYRIGHT" for |
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4 * details. THERE IS ABSOLUTELY NO WARRANTY FOR THIS SOFTWARE. |
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5 */ |
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6 |
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7 /*$Header: /home/kbs/jutta/src/gsm/gsm-1.0/inc/RCS/gsm.h,v 1.11 1996/07/05 18:02:56 jutta Exp $*/ |
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8 |
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9 #ifndef GSM_H |
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10 #define GSM_H |
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11 |
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12 #ifdef __cplusplus |
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13 # define NeedFunctionPrototypes 1 |
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14 #endif |
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15 |
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16 #if __STDC__ |
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17 # define NeedFunctionPrototypes 1 |
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18 #endif |
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19 |
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20 #ifdef _NO_PROTO |
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21 # undef NeedFunctionPrototypes |
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22 #endif |
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23 |
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24 #ifdef NeedFunctionPrototypes |
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25 # include <stdio.h> /* for FILE * */ |
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26 #endif |
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27 |
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28 #undef GSM_P |
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29 #if NeedFunctionPrototypes |
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30 # define GSM_P( protos ) protos |
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31 #else |
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32 # define GSM_P( protos ) ( /* protos */ ) |
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33 #endif |
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34 |
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35 /* |
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36 * Interface |
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37 */ |
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38 |
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39 typedef struct gsm_state * gsm; |
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40 typedef short gsm_signal; /* signed 16 bit */ |
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41 typedef unsigned char gsm_byte; |
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42 typedef gsm_byte gsm_frame[33]; /* 33 * 8 bits */ |
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43 |
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44 #define GSM_MAGIC 0xD /* 13 kbit/s RPE-LTP */ |
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45 |
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46 #define GSM_PATCHLEVEL 10 |
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47 #define GSM_MINOR 0 |
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48 #define GSM_MAJOR 1 |
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49 |
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50 #define GSM_OPT_VERBOSE 1 |
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51 #define GSM_OPT_FAST 2 |
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52 #define GSM_OPT_LTP_CUT 3 |
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53 #define GSM_OPT_WAV49 4 |
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54 #define GSM_OPT_FRAME_INDEX 5 |
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55 #define GSM_OPT_FRAME_CHAIN 6 |
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56 |
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57 extern gsm gsm_create GSM_P((void)); |
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58 extern void gsm_destroy GSM_P((gsm)); |
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59 |
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60 extern int gsm_print GSM_P((FILE *, gsm, gsm_byte *)); |
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61 extern int gsm_option GSM_P((gsm, int, int *)); |
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62 |
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63 extern void gsm_encode GSM_P((gsm, gsm_signal *, gsm_byte *)); |
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64 extern int gsm_decode GSM_P((gsm, gsm_byte *, gsm_signal *)); |
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65 |
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66 extern int gsm_explode GSM_P((gsm, gsm_byte *, gsm_signal *)); |
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67 extern void gsm_implode GSM_P((gsm, gsm_signal *, gsm_byte *)); |
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68 |
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69 #undef GSM_P |
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70 |
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71 #endif /* GSM_H */ |