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2
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1 /*
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2 ============================================================================
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3 File: G711.H
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4 ============================================================================
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5
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6 UGST/ITU-T G711 MODULE
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7
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8 GLOBAL FUNCTION PROTOTYPES
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9
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10 History:
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11 10.Dec.91 v1.0 First version <hf@pkinbg.uucp>
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12 08.Feb.92 v1.1 Non-ANSI prototypes added <tdsimao@venus.cpqd.ansp.br>
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13 11.Jan.96 v1.2 Fixed misleading prototype parameter names in
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14 alaw_expand() and ulaw_compress(); changed to
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15 smart prototypes <simao@ctd.comsat.com>,
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16 and <Volker.Springer@eedn.ericsson.se>
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17 31.Jan.2000 v3.01 [version no.aligned with g711.c] Updated list of
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18 compilers for smart prototypes
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19 13jan2005 Byte for compressed data
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20 ============================================================================
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21 */
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22 #ifndef G711_defined
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23 #define G711_defined 301
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24
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25 /* Smart function prototypes: for [ag]cc, VaxC, and [tb]cc */
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26 #if !defined(ARGS)
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27 #if (defined(__STDC__) || defined(VMS) || defined(__DECC) || defined(MSDOS) || defined(__MSDOS__)) || defined (__CYGWIN__) || defined (_MSC_VER)
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28 #define ARGS(s) s
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29 #else
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30 #define ARGS(s) ()
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31 #endif
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32 #endif
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33
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34 typedef unsigned char Byte;
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35
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36 /* Function prototypes */
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37 void alaw_compress ARGS((long lseg, short *linbuf, Byte *logbuf));
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38 void alaw_expand ARGS((long lseg, Byte *logbuf, short *linbuf));
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39 void ulaw_compress ARGS((long lseg, short *linbuf, Byte *logbuf));
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40 void ulaw_expand ARGS((long lseg, Byte *logbuf, short *linbuf));
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41
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42 /* Definitions for better user interface (?!) */
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43 #define IS_LIN 1
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44 #define IS_LOG 0
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45
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46 #endif
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47 /* .......................... End of G711.H ........................... */
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