317 lines
8.3 KiB
C
317 lines
8.3 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) 1993-1998 Microsoft Corporation
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//
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//--------------------------------------------------------------------------;
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//
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// codec.h
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//
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// Description:
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// This file contains codec definitions, Win16/Win32 compatibility
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// definitions, and instance structure definitions.
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//
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//
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//==========================================================================;
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#ifndef _INC_CODEC
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#define _INC_CODEC // #defined if codec.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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// ACM Driver Version:
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//
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// the version is a 32 bit number that is broken into three parts as
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// follows:
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//
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// bits 24 - 31: 8 bit _major_ version number
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// bits 16 - 23: 8 bit _minor_ version number
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// bits 0 - 15: 16 bit build number
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//
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// this is then displayed as follows (in decimal form):
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//
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// bMajor = (BYTE)(dwVersion >> 24)
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// bMinor = (BYTE)(dwVersion >> 16) &
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// wBuild = LOWORD(dwVersion)
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//
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// VERSION_ACM_DRIVER is the version of this driver.
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// VERSION_MSACM is the version of the ACM that this driver
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// was designed for (requires).
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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#ifdef _WIN32
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//
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// 32-bit versions
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//
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#if (WINVER >= 0x0400)
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#define VERSION_ACM_DRIVER MAKE_ACM_VERSION(4, 0, 0)
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#else
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#define VERSION_ACM_DRIVER MAKE_ACM_VERSION(3, 50, 0)
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#endif
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#define VERSION_MSACM MAKE_ACM_VERSION(3, 50, 0)
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#else
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//
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// 16-bit versions
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//
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#define VERSION_ACM_DRIVER MAKE_ACM_VERSION(1, 0, 0)
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#define VERSION_MSACM MAKE_ACM_VERSION(2, 1, 0)
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#endif
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// Win 16/32 portability stuff...
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//
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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#ifndef _WIN32
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#ifndef FNLOCAL
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#define FNLOCAL NEAR PASCAL
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#define FNCLOCAL NEAR _cdecl
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#define FNGLOBAL FAR PASCAL
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#define FNCGLOBAL FAR _cdecl
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#ifdef _WINDLL
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#define FNWCALLBACK FAR PASCAL _loadds
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#define FNEXPORT FAR PASCAL _export
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#else
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#define FNWCALLBACK FAR PASCAL
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#define FNEXPORT FAR PASCAL _export
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#endif
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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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#ifndef FIELD_OFFSET
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#define FIELD_OFFSET(type, field) ((LONG)&(((type *)0)->field))
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#endif
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//
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// based code makes since only in win 16 (to try and keep stuff out of
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// our fixed data segment...
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//
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#define BCODE _based(_segname("_CODE"))
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#define HUGE _huge
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//
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// stuff for Unicode in Win 32--make it a noop in Win 16
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//
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#ifndef _TCHAR_DEFINED
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#define _TCHAR_DEFINED
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typedef char TCHAR, *PTCHAR;
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typedef unsigned char TBYTE, *PTUCHAR;
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typedef PSTR PTSTR, PTCH;
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typedef LPSTR LPTSTR, LPTCH;
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typedef LPCSTR LPCTSTR;
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#endif
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#define TEXT(a) a
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#define SIZEOF(x) sizeof(x)
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#define SIZEOFACMSTR(x) sizeof(x)
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#else
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#ifndef FNLOCAL
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#define FNLOCAL _stdcall
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#define FNCLOCAL _stdcall
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#define FNGLOBAL _stdcall
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#define FNCGLOBAL _stdcall
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#define FNWCALLBACK CALLBACK
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#define FNEXPORT CALLBACK
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#endif
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#ifndef try
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#define try __try
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#define leave __leave
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#define except __except
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#define finally __finally
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#endif
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//
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// there is no reason to have based stuff in win 32
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//
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#define BCODE
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#define HUGE
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#define HTASK HANDLE
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#define SELECTOROF(a) (a)
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//
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// for compiling Unicode
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//
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#ifdef UNICODE
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#define SIZEOF(x) (sizeof(x)/sizeof(WCHAR))
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#else
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#define SIZEOF(x) sizeof(x)
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#endif
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#define SIZEOFACMSTR(x) (sizeof(x)/sizeof(WCHAR))
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#endif
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// misc defines for misc sizes and things...
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// bilingual. this allows the same identifier to be used in resource files
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// and code without having to decorate the id in your code.
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//
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#ifdef RC_INVOKED
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#define RCID(id) id
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#else
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#define RCID(id) MAKEINTRESOURCE(id)
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#endif
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//
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//
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//
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#define SIZEOF_ARRAY(ar) (sizeof(ar)/sizeof((ar)[0]))
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//
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// macros to compute block alignment and convert between samples and bytes
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// of PCM data. note that these macros assume:
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//
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// wBitsPerSample = 8 or 16
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// nChannels = 1 or 2
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//
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// the pwf argument is a pointer to a PCMWAVEFORMAT structure.
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//
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#define PCM_BLOCKALIGNMENT(pwf) (UINT)(((pwf)->wBitsPerSample >> 3) << ((pwf)->wf.nChannels >> 1))
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#define PCM_AVGBYTESPERSEC(pwf) (DWORD)((pwf)->wf.nSamplesPerSec * (pwf)->wf.nBlockAlign)
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#define PCM_BYTESTOSAMPLES(pwf, dw) (DWORD)(dw / PCM_BLOCKALIGNMENT(pwf))
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#define PCM_SAMPLESTOBYTES(pwf, dw) (DWORD)(dw * PCM_BLOCKALIGNMENT(pwf))
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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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typedef struct tDRIVERINSTANCE
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{
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//
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// although not required, it is suggested that the first two members
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// of this structure remain as fccType and DriverProc _in this order_.
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// the reason for this is that the driver will be easier to combine
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// with other types of drivers (defined by AVI) in the future.
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//
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FOURCC fccType; // type of driver: 'audc'
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DRIVERPROC fnDriverProc; // driver proc for the instance
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//
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// the remaining members of this structure are entirely open to what
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// your driver requires.
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//
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HDRVR hdrvr; // driver handle we were opened with
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HINSTANCE hinst; // DLL module handle.
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DWORD vdwACM; // current version of ACM opening you
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DWORD fdwOpen; // flags from open description
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DWORD fdwConfig; // driver instance configuration flags
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} DRIVERINSTANCE, *PDRIVERINSTANCE, FAR *LPDRIVERINSTANCE;
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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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//
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//
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//
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//
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typedef LRESULT (FNGLOBAL *STREAMCONVERTPROC)
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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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typedef struct tSTREAMINSTANCE
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{
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STREAMCONVERTPROC fnConvert; // stream instance conversion proc
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DWORD fdwConfig; // stream instance configuration flags
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} STREAMINSTANCE, *PSTREAMINSTANCE, FAR *LPSTREAMINSTANCE;
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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//
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// resource id's
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//
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//
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//- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ;
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#define IDS_ACM_DRIVER_SHORTNAME (1) // ACMDRIVERDETAILS.szShortName
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#define IDS_ACM_DRIVER_LONGNAME (2) // ACMDRIVERDETAILS.szLongName
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#define IDS_ACM_DRIVER_COPYRIGHT (3) // ACMDRIVERDETAILS.szCopyright
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#define IDS_ACM_DRIVER_LICENSING (4) // ACMDRIVERDETAILS.szLicensing
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#define IDS_ACM_DRIVER_FEATURES (5) // ACMDRIVERDETAILS.szFeatures
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#define IDS_ACM_DRIVER_TAG_NAME_ALAW (20) // ACMFORMATTAGDETAILS.szFormatTag
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#define IDS_ACM_DRIVER_TAG_NAME_MULAW (30) // ACMFORMATTAGDETAILS.szFormatTag
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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_CODEC
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