#ifndef _MMREG_H

#define _MMREG_H

#if __GNUC__ >= 3

#pragma GCC system_header

#endif

#ifndef _MMSYSTEM_H

#include <mmsystem.h>

#endif

#ifdef __cplusplus

extern "C" {

#endif

/*--- DirectShow Reference - DirectShow Structures */

typedef struct mpeg1waveformat_tag {

	WAVEFORMATEX wfx;

	WORD fwHeadLayer;

	DWORD dwHeadBitrate;

	WORD fwHeadMode;

	WORD fwHeadModeExt;

	WORD wHeadEmphasis;

	WORD fwHeadFlags;

	DWORD dwPTSLow;

	DWORD dwPTSHigh;

} MPEG1WAVEFORMAT;

#define ACM_MPEG_LAYER1 0x0001

#define ACM_MPEG_LAYER2 0x0002

#define ACM_MPEG_LAYER3 0x0004

#define ACM_MPEG_STEREO 0x0001

#define ACM_MPEG_JOINTSTEREO 0x0002

#define ACM_MPEG_DUALCHANNEL 0x0004

#define ACM_MPEG_SINGLECHANNEL 0x0008

#define ACM_MPEG_PRIVATEBIT 0x0001

#define ACM_MPEG_COPYRIGHT 0x0002

#define ACM_MPEG_ORIGINALHOME 0x0004

#define ACM_MPEG_PROTECTIONBIT 0x0008

#define ACM_MPEG_ID_MPEG1 0x0010

typedef struct {

	WAVEFORMATEX Format;

	union {

		WORD wValidBitsPerSample;

		WORD wSamplesPerBlock;

		WORD wReserved;

	} Samples;

	DWORD dwChannelMask; 

	GUID SubFormat;

} WAVEFORMATEXTENSIBLE,*PWAVEFORMATEXTENSIBLE;

#define SPEAKER_FRONT_LEFT 0x1

#define SPEAKER_FRONT_RIGHT 0x2

#define SPEAKER_FRONT_CENTER 0x4

#define SPEAKER_LOW_FREQUENCY 0x8

#define SPEAKER_BACK_LEFT 0x10

#define SPEAKER_BACK_RIGHT 0x20

#define SPEAKER_FRONT_LEFT_OF_CENTER 0x40

#define SPEAKER_FRONT_RIGHT_OF_CENTER 0x80

#define SPEAKER_BACK_CENTER 0x100

#define SPEAKER_SIDE_LEFT 0x200

#define SPEAKER_SIDE_RIGHT 0x400

#define SPEAKER_TOP_CENTER 0x800

#define SPEAKER_TOP_FRONT_LEFT 	0x1000

#define SPEAKER_TOP_FRONT_CENTER 0x2000

#define SPEAKER_TOP_FRONT_RIGHT 0x4000

#define SPEAKER_TOP_BACK_LEFT 0x8000

#define SPEAKER_TOP_BACK_CENTER 0x10000

#define SPEAKER_TOP_BACK_RIGHT 0x20000

#ifdef __cplusplus

}

#endif

#endif