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| /* | |
| * $Id: $ | |
| * PortAudio Portable Real-Time Audio Library | |
| * DirectSound specific extensions | |
| * | |
| * Copyright (c) 1999-2007 Ross Bencina and Phil Burk | |
| * | |
| * 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 DirectSound-specific PortAudio API extension header file. | |
| */ | |
| extern "C" | |
| { | |
| typedef struct PaWinDirectSoundStreamInfo{ | |
| unsigned long size; /**< sizeof(PaWinDirectSoundStreamInfo) */ | |
| PaHostApiTypeId hostApiType; /**< paDirectSound */ | |
| unsigned long version; /**< 2 */ | |
| unsigned long flags; /**< enable other features of this struct */ | |
| /** | |
| low-level latency setting support | |
| Sets the size of the DirectSound host buffer. | |
| When flags contains the paWinDirectSoundUseLowLevelLatencyParameters | |
| this size will be used instead of interpreting the generic latency | |
| parameters to Pa_OpenStream(). If the flag is not set this value is ignored. | |
| If the stream is a full duplex stream the implementation requires that | |
| the values of framesPerBuffer for input and output match (if both are specified). | |
| */ | |
| unsigned long framesPerBuffer; | |
| /** | |
| support for WAVEFORMATEXTENSIBLE channel masks. If flags contains | |
| paWinDirectSoundUseChannelMask this allows you to specify which speakers | |
| to address in a multichannel stream. Constants for channelMask | |
| are specified in pa_win_waveformat.h | |
| */ | |
| PaWinWaveFormatChannelMask channelMask; | |
| }PaWinDirectSoundStreamInfo; | |
| } | |