Leaked source code of windows server 2003
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// Copyright (c) 1995 - 1998 Microsoft Corporation. All Rights Reserved.
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Mediamatics Audio Decoder Interface Specification
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
#ifndef _MM_AUDIODEC_H_
#define _MM_AUDIODEC_H_
#ifdef __cplusplus
extern "C" { /* Assume C declarations for C++ */#endif /* __cplusplus */
// Control parameter values
#define DECODE_MONO 0x00000001L // redundant, unused.
#define DECODE_STEREO 0x00000002L // 1=allow stereo, 0=force mono.
#define DECODE_LEFT_ONLY 0x00000010L // decode left ch only, feed to both outputs
#define DECODE_RIGHT_ONLY 0x00000020L // decode right ch only, feed to both outputs
#define DECODE_QUARTER 0x00000800L // quarter bw: 8 sub-bands
#define DECODE_HALF 0x00001000L // half bw: 16 sub-bands
#define DECODE_FULL 0x00002000L // full bw: 32 sub-bands
#define DECODE_HALF_HIQ 0x00004000L // half bw, hi quality
#define DECODE_HALF_FULLQ 0x00008000L // half bw, full quality
#define DECODE_16BIT 0x00010000L // 1=16bit output, 0=8-bit output.
#define DECODE_8BIT 0x00020000L // redundant, unused.
#define DECODE_QSOUND 0x00040000L // enable qsound (no longer used)
#define DECODE_INT 0x00080000L // enable integer-only mode.
#define DECODE_MMX 0x00100000L // enable mmx mode (has to in int mode as well).
#define DECODE_AC3 0x10000000L // Open for AC-3 Decode.
#define DECODE_PRO_LOGIC 0x20000000L // Output in ProLogic for AC-3
#define DECODE_MIX_LFE 0x40000000L
#define DECODE_QUART_INT DECODE_INT // ## MSMM MERGE CHANGE ##
// Function return values
#define DECODE_SUCCESS 0x0000L
#define DECODE_ERR_MEMORY 0x0001L
#define DECODE_ERR_DATA 0x0002L
#define DECODE_ERR_PARM 0x0003L
#define DECODE_ERR_VLDERROR 0x0004L
#define DECODE_ERR_SEVEREVLD 0x0005L
#define DECODE_ERR_MEMALLOC DECODE_ERR_MEMORY
#define DECODE_ERR_TABLE 0x0081L
#define DECODE_ERR_PICKTABLE 0x0082L
#define DECODE_ERR_NOSYNC 0x0083L
#define DECODE_ERR_LAYER 0x0084L
#define DECODE_ERR_EMPH 0x0085L // non-fatal error.
#define DECODE_ERR_CRC 0x0086L
#define DECODE_ERR_BADSTATE 0x0087L
#define DECODE_ERR_NBANDS 0x0088L
#define DECODE_ERR_BADHDR 0x0089L
#define DECODE_ERR_INBUFOV 0x008AL
#define DECODE_ERR_NOTENOUGHDATA 0x008BL
#define ERROR_BAD_DLL 0x1000L // A Dll had some problem loading/linking
typedef struct tagAudioDecStruct { DWORD dwCtrl ; // Control parameter
DWORD dwNumFrames ; // Number of Audio frames to decode
DWORD dwOutBuffSize ; // Size of each buffer in bytes
DWORD dwOutBuffUsed ; // Number of bytes used in each buffer
// filled in by Decoder
void * pOutBuffer; // Actual pointer to the buffer
void * pCmprHead ; // Pointer to the Compressed Bit Buffer
// Head
void * pCmprRead ; // Pointer to the Compressed Bit Read
// position
void * pCmprWrite ; // Pointer to the Compressed Bit Write
// position
DWORD dwMpegError ; DWORD dwNumOutputChannels; // input to decoder
DWORD dwFrameSize ; // output from decoder
DWORD dwBitRate ; // output from decoder
DWORD dwSampleRate ; // output from decoder
DWORD dwNumInputChannels ; // output from decoder
} stAudioDecode, * PAUDIODECODE, FAR * LPAUDIODECODE ;
typedef DWORD_PTR HADEC;
#ifdef STD_BACKAPI
#define BACKAPI APIENTRY
#else
#define BACKAPI
#endif
BOOL BACKAPI CanDoAC3(void);HADEC BACKAPI OpenAudio(DWORD ctrl);DWORD BACKAPI CloseAudio(HADEC hDevice);DWORD BACKAPI ResetAudio(HADEC hDevice, DWORD ctrl);DWORD BACKAPI DecodeAudioFrame(HADEC hDevice, PAUDIODECODE lpAudioCtrlStruct);#ifdef __cplusplus
} /* End of extern "C" { */#endif /* __cplusplus */
#endif // _MM_AUDIODEC_H_
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