117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
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//==========================================================================;
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY
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// KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
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// IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A PARTICULAR
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// PURPOSE.
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//
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// Copyright (c) 1993-1994 Microsoft Corporation
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//
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//--------------------------------------------------------------------------;
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//
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// gsm610.h
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//
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// Description:
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// This file contains prototypes for the filtering routines, and
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// some parameters used by the algorithm.
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//
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//
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//==========================================================================;
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#ifndef _INC_GSM610
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#define _INC_GSM610 // #defined if gsm610.h has been included
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#ifndef RC_INVOKED
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#pragma pack(1) // assume byte packing throughout
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#endif
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#ifndef EXTERN_C
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#ifdef __cplusplus
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#define EXTERN_C extern "C"
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#else
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#define EXTERN_C extern
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#endif
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#endif
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#ifdef __cplusplus
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extern "C" // assume C declarations for C++
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{
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#endif
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// The following constants are defined in order to make portions
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// of the program more readable. In general, these constants
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// cannot be changed without requiring changes in related program code.
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//
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#define GSM610_MAX_CHANNELS 1
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#define GSM610_BITS_PER_SAMPLE 0
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#define GSM610_WFX_EXTRA_BYTES (2)
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#define GSM610_SAMPLESPERFRAME 160
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#define GSM610_NUMSUBFRAMES 4
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#define GSM610_SAMPLESPERSUBFRAME 40
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#define GSM610_FRAMESPERMONOBLOCK 2
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#define GSM610_BITSPERFRAME 260
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#define GSM610_BYTESPERMONOBLOCK (GSM610_FRAMESPERMONOBLOCK * GSM610_BITSPERFRAME / 8)
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#define GSM610_SAMPLESPERMONOBLOCK (GSM610_FRAMESPERMONOBLOCK * GSM610_SAMPLESPERFRAME)
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//
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// these assume mono
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//
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#define GSM610_BLOCKALIGNMENT(pwf) (GSM610_BYTESPERMONOBLOCK)
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#define GSM610_AVGBYTESPERSEC(pwf) (((LPGSM610WAVEFORMAT)pwf)->wfx.nSamplesPerSec * GSM610_BYTESPERMONOBLOCK / GSM610_SAMPLESPERMONOBLOCK)
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#define GSM610_SAMPLESPERBLOCK(pwf) (GSM610_SAMPLESPERMONOBLOCK)
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// function prototypes from GSM610.C
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//
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//
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void FNGLOBAL gsm610Reset
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(
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PSTREAMINSTANCE psi
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);
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LRESULT FNGLOBAL gsm610Decode
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(
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LPACMDRVSTREAMINSTANCE padsi,
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LPACMDRVSTREAMHEADER padsh
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);
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LRESULT FNGLOBAL gsm610Encode
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(
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LPACMDRVSTREAMINSTANCE padsi,
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LPACMDRVSTREAMHEADER padsh
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);
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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#ifndef RC_INVOKED
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#pragma pack() // revert to default packing
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#endif
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#ifdef __cplusplus
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} // end of extern "C" {
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#endif
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#endif // _INC_GSM610
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