78 lines
3.3 KiB
C
78 lines
3.3 KiB
C
#ifndef PA_OPENSLES_H
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#define PA_OPENSLES_H
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/*
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* $Id:
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* PortAudio Portable Real-Time Audio Library
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* Android OpenSLES-specific extensions
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*
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* Copyright (c) 1999-2000 Ross Bencina and Phil Burk
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files
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* (the "Software"), to deal in the Software without restriction,
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* including without limitation the rights to use, copy, modify, merge,
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* publish, distribute, sublicense, and/or sell copies of the Software,
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* and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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* CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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/*
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* The text above constitutes the entire PortAudio license; however,
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* the PortAudio community also makes the following non-binding requests:
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*
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* Any person wishing to distribute modifications to the Software is
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* requested to send the modifications to the original developer so that
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* they can be incorporated into the canonical version. It is also
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* requested that these non-binding requests be included along with the
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* license above.
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*/
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/** @file
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@ingroup public_header
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@brief Android OpenSLES-specific PortAudio API extension header file.
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*/
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#include <SLES/OpenSLES.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/** The android stream type and recording preset as defined in
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* OpenSLES_AndroidConfiguration.h
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*/
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typedef struct PaOpenslesStreamInfo {
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SLint32 androidPlaybackStreamType;
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SLint32 androidRecordingPreset;
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} PaOpenslesStreamInfo;
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/** Provide PA OpenSLES with native buffer information. This function must be called before Pa_Initialize.
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* To have optimal latency, this function should be called. Otherwise PA OpenSLES will use non-optimal values
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* as default.
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* @param bufferSize the native buffersize as returned by AudioManager's PROPERTY_OUTPUT_FRAMES_PER_BUFFER. It is recommended you set the number of buffers to 1 if API>17 as well, and use the sample rate defined in AudioManager's android.media.property.OUTPUT_SAMPLE_RATE. All three together will enable the AUDIO_OUTPUT_FLAG_FAST flag.
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*/
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void PaOpenSLES_SetNativeBufferSize( unsigned long bufferSize );
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/** Provide PA OpenSLES with native buffer information. This function must be called before Pa_Initialize.
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* To have optimal latency and enable the AUDIO_OUTPUT_FLAG_FAST flag, this function should be called. Otherwise PA OpenSLES will use non-optimal values (2) as default.
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* @param The number of buffers can be reduced to 1 on API >17. Make sure you set the native buffer size when doing this, and use the sample rate defined in AudioManager's android.media.property.OUTPUT_SAMPLE_RATE.
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*/
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void PaOpenSLES_SetNumberOfBuffers( unsigned buffers );
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#ifdef __cplusplus
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}
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#endif
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#endif
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