/* * PortAudio Portable Real-Time Audio Library * Macintosh Core Audio specific extensions * portaudio.h should be included before this file. * * Copyright (c) 2005-2006 Bjorn Roche * * 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. */#ifdef __cplusplusextern "C" {#endif/* * A pointer to a paMacCoreStreamInfo may be passed as * the hostApiSpecificStreamInfo in the PaStreamParameters struct * when opening a stream or querying the format. Use NULL, for the * defaults. Note that for duplex streams, both infos should be the * same or behaviour is undefined. */typedef struct paMacCoreStreamInfo{    unsigned long size;         /**size of whole structure including this header */    PaHostApiTypeId hostApiType;/**host API for which this data is intended */    unsigned long version;      /**structure version */    unsigned long flags;        /* flags to modify behaviour */} paMacCoreStreamInfo;/* Use this function to initialize a paMacCoreStreamInfo struct   using the requested flags. */void paSetupMacCoreStreamInfo( paMacCoreStreamInfo *data, unsigned long flags ){   bzero( data, sizeof( paMacCoreStreamInfo ) );   data->size = sizeof( paMacCoreStreamInfo );   data->hostApiType = paCoreAudio;   data->version = 0x01;   data->flags = flags;}/* * The following flags alter the behaviour of PA on the mac platform. * they can be ORed together. These should work both for opening and * checking a device. *//* Allows PortAudio to change things like the device's frame size, * which allows for much lower latency, but might disrupt the device * if other programs are using it, even when you are just Querying * the device. */const unsigned long paMacCore_ChangeDeviceParameters      = 0x01;/* In combination with the above flag, * causes the stream opening to fail, unless the exact sample rates * are supported by the device. */const unsigned long paMacCore_FailIfConversionRequired    = 0x02;/* These flags set the SR conversion quality, if required. The wierd ordering * allows Maximum Quality to be the default.*/const unsigned long paMacCore_ConversionQualityMin    = 0x0100;const unsigned long paMacCore_ConversionQualityMedium = 0x0200;const unsigned long paMacCore_ConversionQualityLow    = 0x0300;const unsigned long paMacCore_ConversionQualityHigh   = 0x0400;const unsigned long paMacCore_ConversionQualityMax    = 0x0000;/* * Here are some "preset" combinations of flags (above) to get to some * common configurations. THIS IS OVERKILL, but if more flags are added * it won't be. *//*This is the default setting: do as much sample rate conversion as possible * and as little mucking with the device as possible. */const unsigned long paMacCorePlayNice = 0x00;/*This setting is tuned for pro audio apps. It allows SR conversion on input  and output, but it tries to set the appropriate SR on the device.*/const unsigned long paMacCorePro      = 0x01;/*This is a setting to minimize CPU usage and still play nice.*/const unsigned long paMacCoreMinimizeCPUButPlayNice = 0x0100;/*This is a setting to minimize CPU usage, even if that means interrupting the device. */const unsigned long paMacCoreMinimizeCPU = 0x0101;#ifdef PA_OLD_CORE_AUDIO#	define kAudioOutputUnitProperty_EnableIO         	2003#	define kAudioOutputUnitProperty_SetInputCallback 	2005#endif#ifdef __cplusplus}#endif /* __cplusplus */