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-/***************************************************************************
- *
- * Copyright (c) Microsoft Corporation. All rights reserved.
- *
- * File: audiodefs.h
- * Content: Basic constants and data types for audio work.
- *
- * Remarks: This header file defines all of the audio format constants and
- * structures required for XAudio2 and XACT work. Providing these
- * in a single location avoids certain dependency problems in the
- * legacy audio headers (mmreg.h, mmsystem.h, ksmedia.h).
- *
- * NOTE: Including the legacy headers after this one may cause a
- * compilation error, because they define some of the same types
- * defined here without preprocessor guards to avoid multiple
- * definitions. If a source file needs one of the old headers,
- * it must include it before including audiodefs.h.
- *
- ***************************************************************************/
-
-#ifndef __AUDIODEFS_INCLUDED__
-#define __AUDIODEFS_INCLUDED__
-
-#include <windef.h> // For WORD, DWORD, etc.
-
-#pragma pack(push, 1) // Pack structures to 1-byte boundaries
-
-
-/**************************************************************************
- *
- * WAVEFORMATEX: Base structure for many audio formats. Format-specific
- * extensions can be defined for particular formats by using a non-zero
- * cbSize value and adding extra fields to the end of this structure.
- *
- ***************************************************************************/
-
-#ifndef _WAVEFORMATEX_
-
- #define _WAVEFORMATEX_
- typedef struct tWAVEFORMATEX
- {
- WORD wFormatTag; // Integer identifier of the format
- WORD nChannels; // Number of audio channels
- DWORD nSamplesPerSec; // Audio sample rate
- DWORD nAvgBytesPerSec; // Bytes per second (possibly approximate)
- WORD nBlockAlign; // Size in bytes of a sample block (all channels)
- WORD wBitsPerSample; // Size in bits of a single per-channel sample
- WORD cbSize; // Bytes of extra data appended to this struct
- } WAVEFORMATEX;
-
-#endif
-
-// Defining pointer types outside of the #if block to make sure they are
-// defined even if mmreg.h or mmsystem.h is #included before this file
-
-typedef WAVEFORMATEX *PWAVEFORMATEX, *NPWAVEFORMATEX, *LPWAVEFORMATEX;
-typedef const WAVEFORMATEX *PCWAVEFORMATEX, *LPCWAVEFORMATEX;
-
-
-/**************************************************************************
- *
- * WAVEFORMATEXTENSIBLE: Extended version of WAVEFORMATEX that should be
- * used as a basis for all new audio formats. The format tag is replaced
- * with a GUID, allowing new formats to be defined without registering a
- * format tag with Microsoft. There are also new fields that can be used
- * to specify the spatial positions for each channel and the bit packing
- * used for wide samples (e.g. 24-bit PCM samples in 32-bit containers).
- *
- ***************************************************************************/
-
-#ifndef _WAVEFORMATEXTENSIBLE_
-
- #define _WAVEFORMATEXTENSIBLE_
- typedef struct
- {
- WAVEFORMATEX Format; // Base WAVEFORMATEX data
- union
- {
- WORD wValidBitsPerSample; // Valid bits in each sample container
- WORD wSamplesPerBlock; // Samples per block of audio data; valid
- // if wBitsPerSample=0 (but rarely used).
- WORD wReserved; // Zero if neither case above applies.
- } Samples;
- DWORD dwChannelMask; // Positions of the audio channels
- GUID SubFormat; // Format identifier GUID
- } WAVEFORMATEXTENSIBLE;
-
-#endif
-
-typedef WAVEFORMATEXTENSIBLE *PWAVEFORMATEXTENSIBLE, *LPWAVEFORMATEXTENSIBLE;
-typedef const WAVEFORMATEXTENSIBLE *PCWAVEFORMATEXTENSIBLE, *LPCWAVEFORMATEXTENSIBLE;
-
-
-
-/**************************************************************************
- *
- * Define the most common wave format tags used in WAVEFORMATEX formats.
- *
- ***************************************************************************/
-
-#ifndef WAVE_FORMAT_PCM // Pulse Code Modulation
-
- // If WAVE_FORMAT_PCM is not defined, we need to define some legacy types
- // for compatibility with the Windows mmreg.h / mmsystem.h header files.
-
- // Old general format structure (information common to all formats)
- typedef struct waveformat_tag
- {
- WORD wFormatTag;
- WORD nChannels;
- DWORD nSamplesPerSec;
- DWORD nAvgBytesPerSec;
- WORD nBlockAlign;
- } WAVEFORMAT, *PWAVEFORMAT, NEAR *NPWAVEFORMAT, FAR *LPWAVEFORMAT;
-
- // Specific format structure for PCM data
- typedef struct pcmwaveformat_tag
- {
- WAVEFORMAT wf;
- WORD wBitsPerSample;
- } PCMWAVEFORMAT, *PPCMWAVEFORMAT, NEAR *NPPCMWAVEFORMAT, FAR *LPPCMWAVEFORMAT;
-
- #define WAVE_FORMAT_PCM 0x0001
-
-#endif
-
-#ifndef WAVE_FORMAT_ADPCM // Microsoft Adaptive Differental PCM
-
- // Replicate the Microsoft ADPCM type definitions from mmreg.h.
-
- typedef struct adpcmcoef_tag
- {
- short iCoef1;
- short iCoef2;
- } ADPCMCOEFSET;
-
- #pragma warning(push)
- #pragma warning(disable:4200) // Disable zero-sized array warnings
-
- typedef struct adpcmwaveformat_tag {
- WAVEFORMATEX wfx;
- WORD wSamplesPerBlock;
- WORD wNumCoef;
- ADPCMCOEFSET aCoef[]; // Always 7 coefficient pairs for MS ADPCM
- } ADPCMWAVEFORMAT;
-
- #pragma warning(pop)
-
- #define WAVE_FORMAT_ADPCM 0x0002
-
-#endif
-
-// Other frequently used format tags
-
-#ifndef WAVE_FORMAT_UNKNOWN
- #define WAVE_FORMAT_UNKNOWN 0x0000 // Unknown or invalid format tag
-#endif
-
-#ifndef WAVE_FORMAT_IEEE_FLOAT
- #define WAVE_FORMAT_IEEE_FLOAT 0x0003 // 32-bit floating-point
-#endif
-
-#ifndef WAVE_FORMAT_MPEGLAYER3
- #define WAVE_FORMAT_MPEGLAYER3 0x0055 // ISO/MPEG Layer3
-#endif
-
-#ifndef WAVE_FORMAT_DOLBY_AC3_SPDIF
- #define WAVE_FORMAT_DOLBY_AC3_SPDIF 0x0092 // Dolby Audio Codec 3 over S/PDIF
-#endif
-
-#ifndef WAVE_FORMAT_WMAUDIO2
- #define WAVE_FORMAT_WMAUDIO2 0x0161 // Windows Media Audio
-#endif
-
-#ifndef WAVE_FORMAT_WMAUDIO3
- #define WAVE_FORMAT_WMAUDIO3 0x0162 // Windows Media Audio Pro
-#endif
-
-#ifndef WAVE_FORMAT_WMASPDIF
- #define WAVE_FORMAT_WMASPDIF 0x0164 // Windows Media Audio over S/PDIF
-#endif
-
-#ifndef WAVE_FORMAT_EXTENSIBLE
- #define WAVE_FORMAT_EXTENSIBLE 0xFFFE // All WAVEFORMATEXTENSIBLE formats
-#endif
-
-
-/**************************************************************************
- *
- * Define the most common wave format GUIDs used in WAVEFORMATEXTENSIBLE
- * formats. Note that including the Windows ksmedia.h header after this
- * one will cause build problems; this cannot be avoided, since ksmedia.h
- * defines these macros without preprocessor guards.
- *
- ***************************************************************************/
-
-#ifdef __cplusplus // uuid() and __uuidof() are only available in C++
-
- #ifndef KSDATAFORMAT_SUBTYPE_PCM
- struct __declspec(uuid("00000001-0000-0010-8000-00aa00389b71")) KSDATAFORMAT_SUBTYPE_PCM_STRUCT;
- #define KSDATAFORMAT_SUBTYPE_PCM __uuidof(KSDATAFORMAT_SUBTYPE_PCM_STRUCT)
- #endif
-
- #ifndef KSDATAFORMAT_SUBTYPE_ADPCM
- struct __declspec(uuid("00000002-0000-0010-8000-00aa00389b71")) KSDATAFORMAT_SUBTYPE_ADPCM_STRUCT;
- #define KSDATAFORMAT_SUBTYPE_ADPCM __uuidof(KSDATAFORMAT_SUBTYPE_ADPCM_STRUCT)
- #endif
-
- #ifndef KSDATAFORMAT_SUBTYPE_IEEE_FLOAT
- struct __declspec(uuid("00000003-0000-0010-8000-00aa00389b71")) KSDATAFORMAT_SUBTYPE_IEEE_FLOAT_STRUCT;
- #define KSDATAFORMAT_SUBTYPE_IEEE_FLOAT __uuidof(KSDATAFORMAT_SUBTYPE_IEEE_FLOAT_STRUCT)
- #endif
-
-#endif
-
-
-/**************************************************************************
- *
- * Speaker positions used in the WAVEFORMATEXTENSIBLE dwChannelMask field.
- *
- ***************************************************************************/
-
-#ifndef SPEAKER_FRONT_LEFT
- #define SPEAKER_FRONT_LEFT 0x00000001
- #define SPEAKER_FRONT_RIGHT 0x00000002
- #define SPEAKER_FRONT_CENTER 0x00000004
- #define SPEAKER_LOW_FREQUENCY 0x00000008
- #define SPEAKER_BACK_LEFT 0x00000010
- #define SPEAKER_BACK_RIGHT 0x00000020
- #define SPEAKER_FRONT_LEFT_OF_CENTER 0x00000040
- #define SPEAKER_FRONT_RIGHT_OF_CENTER 0x00000080
- #define SPEAKER_BACK_CENTER 0x00000100
- #define SPEAKER_SIDE_LEFT 0x00000200
- #define SPEAKER_SIDE_RIGHT 0x00000400
- #define SPEAKER_TOP_CENTER 0x00000800
- #define SPEAKER_TOP_FRONT_LEFT 0x00001000
- #define SPEAKER_TOP_FRONT_CENTER 0x00002000
- #define SPEAKER_TOP_FRONT_RIGHT 0x00004000
- #define SPEAKER_TOP_BACK_LEFT 0x00008000
- #define SPEAKER_TOP_BACK_CENTER 0x00010000
- #define SPEAKER_TOP_BACK_RIGHT 0x00020000
- #define SPEAKER_RESERVED 0x7FFC0000
- #define SPEAKER_ALL 0x80000000
- #define _SPEAKER_POSITIONS_
-#endif
-
-#ifndef SPEAKER_STEREO
- #define SPEAKER_MONO (SPEAKER_FRONT_CENTER)
- #define SPEAKER_STEREO (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT)
- #define SPEAKER_2POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_LOW_FREQUENCY)
- #define SPEAKER_SURROUND (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_BACK_CENTER)
- #define SPEAKER_QUAD (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)
- #define SPEAKER_4POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)
- #define SPEAKER_5POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)
- #define SPEAKER_7POINT1 (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_FRONT_LEFT_OF_CENTER | SPEAKER_FRONT_RIGHT_OF_CENTER)
- #define SPEAKER_5POINT1_SURROUND (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)
- #define SPEAKER_7POINT1_SURROUND (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT | SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY | SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT | SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)
-#endif
-
-
-#pragma pack(pop)
-
-#endif // #ifndef __AUDIODEFS_INCLUDED__