PortAudio 2.0
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00001 #ifndef PA_WIN_DS_H 00002 #define PA_WIN_DS_H 00003 /* 00004 * $Id: $ 00005 * PortAudio Portable Real-Time Audio Library 00006 * DirectSound specific extensions 00007 * 00008 * Copyright (c) 1999-2007 Ross Bencina and Phil Burk 00009 * 00010 * Permission is hereby granted, free of charge, to any person obtaining 00011 * a copy of this software and associated documentation files 00012 * (the "Software"), to deal in the Software without restriction, 00013 * including without limitation the rights to use, copy, modify, merge, 00014 * publish, distribute, sublicense, and/or sell copies of the Software, 00015 * and to permit persons to whom the Software is furnished to do so, 00016 * subject to the following conditions: 00017 * 00018 * The above copyright notice and this permission notice shall be 00019 * included in all copies or substantial portions of the Software. 00020 * 00021 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 00022 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 00023 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 00024 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 00025 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 00026 * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 00027 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 00028 */ 00029 00030 /* 00031 * The text above constitutes the entire PortAudio license; however, 00032 * the PortAudio community also makes the following non-binding requests: 00033 * 00034 * Any person wishing to distribute modifications to the Software is 00035 * requested to send the modifications to the original developer so that 00036 * they can be incorporated into the canonical version. It is also 00037 * requested that these non-binding requests be included along with the 00038 * license above. 00039 */ 00040 00046 #include "portaudio.h" 00047 #include "pa_win_waveformat.h" 00048 00049 #ifdef __cplusplus 00050 extern "C" 00051 { 00052 #endif /* __cplusplus */ 00053 00054 00055 #define paWinDirectSoundUseLowLevelLatencyParameters (0x01) 00056 #define paWinDirectSoundUseChannelMask (0x04) 00057 00058 00059 typedef struct PaWinDirectSoundStreamInfo{ 00060 unsigned long size; 00061 PaHostApiTypeId hostApiType; 00062 unsigned long version; 00064 unsigned long flags; 00065 00066 /* low-level latency setting support 00067 Control the size of host buffers in order to set latency. They will 00068 be used instead of the generic parameters to Pa_OpenStream() if 00069 flags contains the paWinDirectSoundUseLowLevelLatencyParameters 00070 flag. 00071 00072 If PaWinDirectSoundStreamInfo structures with paWinDirectSoundUseLowLevelLatencyParameters 00073 are supplied for both input and output in a full duplex stream, then the 00074 input and output framesPerBuffer must be the same, or the larger of the 00075 two must be a multiple of the smaller, otherwise a 00076 paIncompatibleHostApiSpecificStreamInfo error will be returned from 00077 Pa_OpenStream(). 00078 */ 00079 unsigned long framesPerBuffer; /* NOT IMPLEMENTED see http://www.portaudio.com/trac/ticket/129 */ 00080 00081 /* 00082 support for WAVEFORMATEXTENSIBLE channel masks. If flags contains 00083 paWinDirectSoundUseChannelMask this allows you to specify which speakers 00084 to address in a multichannel stream. Constants for channelMask 00085 are specified in pa_win_waveformat.h 00086 00087 */ 00088 PaWinWaveFormatChannelMask channelMask; 00089 00090 }PaWinDirectSoundStreamInfo; 00091 00098 LPGUID PaWinDS_GetStreamInputGUID( PaStream* s ); 00099 00106 LPGUID PaWinDS_GetStreamOutputGUID( PaStream* s ); 00107 00108 00109 #ifdef __cplusplus 00110 } 00111 #endif /* __cplusplus */ 00112 00113 #endif /* PA_WIN_DS_H */