#define MM_UNMAPPED 0xffff
#define MM_PID_UNMAPPED MM_UNMAPPED
+#ifndef MM_MICROSOFT
+#define MM_MICROSOFT 0x01
+#endif
+#define MM_MSFT_ACM_MSADPCM 0x21
+#define MM_MSFT_ACM_IMAADPCM 0x22
+#define MM_MSFT_ACM_GSM610 0x24
+#define MM_MSFT_ACM_G711 0x25
+#define MM_MSFT_ACM_PCM 0x26
+
+#define MM_FRAUNHOFER_IIS 0xAC
+#define MM_FHGIIS_MPEGLAYER3_DECODE 0x09
+
#if !defined(WAVE_FORMAT_EXTENSIBLE)
#define WAVE_FORMAT_EXTENSIBLE 0xFFFE /* Microsoft */
#endif