45 lines
1.5 KiB
C
45 lines
1.5 KiB
C
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/*
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* Copyright (C) 2010 Apple Inc. All rights reserved.
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*
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* This document is the property of Apple Inc.
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* It is considered confidential and proprietary.
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*
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* This document may not be reproduced or transmitted in any form,
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* in whole or in part, without the express written permission of
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* Apple Inc.
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*/
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#ifndef _IOP_AU_INTERFACE_H_
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#define _IOP_AU_INTERFACE_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdint.h>
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typedef void * audio_unit_t;
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audio_unit_t Create_AUSidetone(uint32_t sampleRate, uint32_t numChannels, uint32_t sampleSize);
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audio_unit_t Create_AUNull(uint32_t sampleRate, uint32_t numChannels, uint32_t sampleSize);
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void Destroy_AudioUnit(audio_unit_t au);
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// parameters are single values that can be adjusted
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int32_t AudioUnit_GetParameter(audio_unit_t au, uint32_t parameter, float *parameterValue);
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int32_t AudioUnit_SetParameter(audio_unit_t au, uint32_t parameter, float parameterValue);
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// properties are blocks of data that can be adjusted, usually a private setting between user and unit
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int32_t AudioUnit_GetPropertyInfo(audio_unit_t au, uint32_t propID, uint32_t *outSize, bool *outWritable);
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int32_t AudioUnit_GetProperty(audio_unit_t au, uint32_t propID, void *outData, uint32_t *ioSize);
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int32_t AudioUnit_SetProperty(audio_unit_t au, uint32_t propID, const void *inData, uint32_t inSize);
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void AudioUnit_Process(audio_unit_t au, const void *inSourceP, void *inDestP, uint32_t inFramesToProcess);
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#ifdef __cplusplus
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}
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#endif
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#endif // _IOP_AU_INTERFACE_H_
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