169 lines
4.7 KiB
C
169 lines
4.7 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) 1992-1994 Microsoft Corporation
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//
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//--------------------------------------------------------------------------;
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//
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// imaadpcm.h
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//
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// Description:
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// This file contains prototypes for the filtering routines.
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//
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//
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//==========================================================================;
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#ifndef _IMAADPCM_H_
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#define _IMAADPCM_H_
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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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#define IMAADPCM_MAX_CHANNELS 2
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#define IMAADPCM_BITS_PER_SAMPLE 4
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#define IMAADPCM_WFX_EXTRA_BYTES (sizeof(IMAADPCMWAVEFORMAT) - sizeof(WAVEFORMATEX))
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#define IMAADPCM_HEADER_LENGTH 4 // In bytes, per channel.
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#ifdef IMAADPCM_USECONFIG
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#define IMAADPCM_CONFIGTESTTIME 4 // seconds of PCM data for test.
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#define IMAADPCM_CONFIG_DEFAULT 0x0000
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#define IMAADPCM_CONFIG_DEFAULT_MAXRTENCODESETTING 5
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#define IMAADPCM_CONFIG_DEFAULT_MAXRTDECODESETTING 6
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#define IMAADPCM_CONFIG_UNCONFIGURED 0x0999
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#define IMAADPCM_CONFIG_DEFAULT_PERCENTCPU 50
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#define IMAADPCM_CONFIG_TEXTLEN 80
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#define IMAADPCM_CONFIG_DEFAULTKEY HKEY_CURRENT_USER
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#endif
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//
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// Conversion function prototypes.
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//
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DWORD FNGLOBAL imaadpcmDecode4Bit_M08
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmDecode4Bit_M16
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmDecode4Bit_S08
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmDecode4Bit_S16
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmEncode4Bit_M08
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmEncode4Bit_M16
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmEncode4Bit_S08
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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);
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DWORD FNGLOBAL imaadpcmEncode4Bit_S16
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(
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HPBYTE pbSrc,
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DWORD cbSrcLength,
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HPBYTE pbDst,
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UINT nBlockAlignment,
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UINT cSamplesPerBlock,
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int * pnStepIndexL,
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int * pnStepIndexR
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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 // _IMAADPCM_H_
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