diff -r 000000000000 -r 76b1f169d9fe mingw-5.1.4/win32/include/mmreg.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mingw-5.1.4/win32/include/mmreg.h	Fri Apr 03 17:16:45 2009 +0100
@@ -0,0 +1,71 @@
+#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