--- a
+++ b/portaudio/include/pa_win_waveformat.h
@@ -0,0 +1,199 @@
+#ifndef PA_WIN_WAVEFORMAT_H
+#define PA_WIN_WAVEFORMAT_H
+
+/*
+ * PortAudio Portable Real-Time Audio Library
+ * Windows WAVEFORMAT* data structure utilities
+ * portaudio.h should be included before this file.
+ *
+ * Copyright (c) 2007 Ross Bencina
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
+ * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+/*
+ * The text above constitutes the entire PortAudio license; however, 
+ * the PortAudio community also makes the following non-binding requests:
+ *
+ * Any person wishing to distribute modifications to the Software is
+ * requested to send the modifications to the original developer so that
+ * they can be incorporated into the canonical version. It is also 
+ * requested that these non-binding requests be included along with the 
+ * license above.
+ */
+
+/** @file
+ @ingroup public_header
+ @brief Windows specific PortAudio API extension and utilities header file.
+*/
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+	The following #defines for speaker channel masks are the same
+	as those in ksmedia.h, except with PAWIN_ prepended, KSAUDIO_ removed
+	in some cases, and casts to PaWinWaveFormatChannelMask added.
+*/
+
+typedef unsigned long PaWinWaveFormatChannelMask;
+
+/* Speaker Positions: */
+#define PAWIN_SPEAKER_FRONT_LEFT				((PaWinWaveFormatChannelMask)0x1)
+#define PAWIN_SPEAKER_FRONT_RIGHT				((PaWinWaveFormatChannelMask)0x2)
+#define PAWIN_SPEAKER_FRONT_CENTER				((PaWinWaveFormatChannelMask)0x4)
+#define PAWIN_SPEAKER_LOW_FREQUENCY				((PaWinWaveFormatChannelMask)0x8)
+#define PAWIN_SPEAKER_BACK_LEFT					((PaWinWaveFormatChannelMask)0x10)
+#define PAWIN_SPEAKER_BACK_RIGHT				((PaWinWaveFormatChannelMask)0x20)
+#define PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER		((PaWinWaveFormatChannelMask)0x40)
+#define PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER		((PaWinWaveFormatChannelMask)0x80)
+#define PAWIN_SPEAKER_BACK_CENTER				((PaWinWaveFormatChannelMask)0x100)
+#define PAWIN_SPEAKER_SIDE_LEFT					((PaWinWaveFormatChannelMask)0x200)
+#define PAWIN_SPEAKER_SIDE_RIGHT				((PaWinWaveFormatChannelMask)0x400)
+#define PAWIN_SPEAKER_TOP_CENTER				((PaWinWaveFormatChannelMask)0x800)
+#define PAWIN_SPEAKER_TOP_FRONT_LEFT			((PaWinWaveFormatChannelMask)0x1000)
+#define PAWIN_SPEAKER_TOP_FRONT_CENTER			((PaWinWaveFormatChannelMask)0x2000)
+#define PAWIN_SPEAKER_TOP_FRONT_RIGHT			((PaWinWaveFormatChannelMask)0x4000)
+#define PAWIN_SPEAKER_TOP_BACK_LEFT				((PaWinWaveFormatChannelMask)0x8000)
+#define PAWIN_SPEAKER_TOP_BACK_CENTER			((PaWinWaveFormatChannelMask)0x10000)
+#define PAWIN_SPEAKER_TOP_BACK_RIGHT			((PaWinWaveFormatChannelMask)0x20000)
+
+/* Bit mask locations reserved for future use */
+#define PAWIN_SPEAKER_RESERVED					((PaWinWaveFormatChannelMask)0x7FFC0000)
+
+/* Used to specify that any possible permutation of speaker configurations */
+#define PAWIN_SPEAKER_ALL						((PaWinWaveFormatChannelMask)0x80000000)
+
+/* DirectSound Speaker Config */
+#define PAWIN_SPEAKER_DIRECTOUT					0
+#define PAWIN_SPEAKER_MONO						(PAWIN_SPEAKER_FRONT_CENTER)
+#define PAWIN_SPEAKER_STEREO					(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT)
+#define PAWIN_SPEAKER_QUAD						(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_BACK_LEFT  | PAWIN_SPEAKER_BACK_RIGHT)
+#define PAWIN_SPEAKER_SURROUND					(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_BACK_CENTER)
+#define PAWIN_SPEAKER_5POINT1					(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
+												PAWIN_SPEAKER_BACK_LEFT  | PAWIN_SPEAKER_BACK_RIGHT)
+#define PAWIN_SPEAKER_7POINT1					(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
+												PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
+												PAWIN_SPEAKER_FRONT_LEFT_OF_CENTER | PAWIN_SPEAKER_FRONT_RIGHT_OF_CENTER)
+#define PAWIN_SPEAKER_5POINT1_SURROUND			(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
+												PAWIN_SPEAKER_SIDE_LEFT  | PAWIN_SPEAKER_SIDE_RIGHT)
+#define PAWIN_SPEAKER_7POINT1_SURROUND			(PAWIN_SPEAKER_FRONT_LEFT | PAWIN_SPEAKER_FRONT_RIGHT | \
+												PAWIN_SPEAKER_FRONT_CENTER | PAWIN_SPEAKER_LOW_FREQUENCY | \
+												PAWIN_SPEAKER_BACK_LEFT | PAWIN_SPEAKER_BACK_RIGHT | \
+												PAWIN_SPEAKER_SIDE_LEFT | PAWIN_SPEAKER_SIDE_RIGHT)
+/*
+ According to the Microsoft documentation:
+ The following are obsolete 5.1 and 7.1 settings (they lack side speakers).  Note this means
+ that the default 5.1 and 7.1 settings (KSAUDIO_SPEAKER_5POINT1 and KSAUDIO_SPEAKER_7POINT1 are
+ similarly obsolete but are unchanged for compatibility reasons).
+*/
+#define PAWIN_SPEAKER_5POINT1_BACK				PAWIN_SPEAKER_5POINT1
+#define PAWIN_SPEAKER_7POINT1_WIDE				PAWIN_SPEAKER_7POINT1
+
+/* DVD Speaker Positions */
+#define PAWIN_SPEAKER_GROUND_FRONT_LEFT			PAWIN_SPEAKER_FRONT_LEFT
+#define PAWIN_SPEAKER_GROUND_FRONT_CENTER		PAWIN_SPEAKER_FRONT_CENTER
+#define PAWIN_SPEAKER_GROUND_FRONT_RIGHT		PAWIN_SPEAKER_FRONT_RIGHT
+#define PAWIN_SPEAKER_GROUND_REAR_LEFT			PAWIN_SPEAKER_BACK_LEFT
+#define PAWIN_SPEAKER_GROUND_REAR_RIGHT			PAWIN_SPEAKER_BACK_RIGHT
+#define PAWIN_SPEAKER_TOP_MIDDLE				PAWIN_SPEAKER_TOP_CENTER
+#define PAWIN_SPEAKER_SUPER_WOOFER				PAWIN_SPEAKER_LOW_FREQUENCY
+
+
+/*
+	PaWinWaveFormat is defined here to provide compatibility with
+	compilation environments which don't have headers defining 
+	WAVEFORMATEXTENSIBLE (e.g. older versions of MSVC, Borland C++ etc.
+
+	The fields for WAVEFORMATEX and WAVEFORMATEXTENSIBLE are declared as an
+    unsigned char array here to avoid clients who include this file having 
+    a dependency on windows.h and mmsystem.h, and also to to avoid having
+    to write separate packing pragmas for each compiler.
+*/
+#define PAWIN_SIZEOF_WAVEFORMATEX   18
+#define PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE (PAWIN_SIZEOF_WAVEFORMATEX + 22)
+
+typedef struct{
+    unsigned char fields[ PAWIN_SIZEOF_WAVEFORMATEXTENSIBLE ];
+    unsigned long extraLongForAlignment; /* ensure that compiler aligns struct to DWORD */ 
+} PaWinWaveFormat;
+
+/*
+    WAVEFORMATEXTENSIBLE fields:
+    
+    union  {
+	    WORD  wValidBitsPerSample;    
+	    WORD  wSamplesPerBlock;    
+	    WORD  wReserved;  
+    } Samples;
+    DWORD  dwChannelMask;  
+    GUID  SubFormat;
+*/
+
+#define PAWIN_INDEXOF_WVALIDBITSPERSAMPLE	(PAWIN_SIZEOF_WAVEFORMATEX+0)
+#define PAWIN_INDEXOF_DWCHANNELMASK			(PAWIN_SIZEOF_WAVEFORMATEX+2)
+#define PAWIN_INDEXOF_SUBFORMAT				(PAWIN_SIZEOF_WAVEFORMATEX+6)
+
+
+/*
+    Valid values to pass for the waveFormatTag PaWin_InitializeWaveFormatEx and
+    PaWin_InitializeWaveFormatExtensible functions below. These must match
+    the standard Windows WAVE_FORMAT_* values.
+*/
+#define PAWIN_WAVE_FORMAT_PCM               (1)
+#define PAWIN_WAVE_FORMAT_IEEE_FLOAT        (3)
+#define PAWIN_WAVE_FORMAT_DOLBY_AC3_SPDIF   (0x0092)
+#define PAWIN_WAVE_FORMAT_WMA_SPDIF         (0x0164)
+
+
+/*
+    returns PAWIN_WAVE_FORMAT_PCM or PAWIN_WAVE_FORMAT_IEEE_FLOAT
+    depending on the sampleFormat parameter.
+*/
+int PaWin_SampleFormatToLinearWaveFormatTag( PaSampleFormat sampleFormat );
+
+/*
+	Use the following two functions to initialize the waveformat structure.
+*/
+
+void PaWin_InitializeWaveFormatEx( PaWinWaveFormat *waveFormat, 
+		int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate );
+
+
+void PaWin_InitializeWaveFormatExtensible( PaWinWaveFormat *waveFormat, 
+		int numChannels, PaSampleFormat sampleFormat, int waveFormatTag, double sampleRate,
+	    PaWinWaveFormatChannelMask channelMask );
+
+
+/* Map a channel count to a speaker channel mask */
+PaWinWaveFormatChannelMask PaWin_DefaultChannelMask( int numChannels );
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* PA_WIN_WAVEFORMAT_H */