#ifndef _PABLIO_H#define _PABLIO_H#ifdef __cplusplusextern "C"{#endif /* __cplusplus *//* * $Id: pablio.h 1083 2006-08-23 07:30:49Z rossb $ * PABLIO.h * Portable Audio Blocking read/write utility. * * Author: Phil Burk, http://www.softsynth.com/portaudio/ * * Include file for PABLIO, the Portable Audio Blocking I/O Library. * PABLIO is built on top of PortAudio, the Portable Audio Library. * For more information see: http://www.portaudio.com * Copyright (c) 1999-2000 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. */#include <stdio.h>#include <stdlib.h>#include <math.h>#include "portaudio.h"#include "ringbuffer.h"#include <string.h>typedef struct{    RingBuffer   inFIFO;    RingBuffer   outFIFO;    PortAudioStream *stream;    int          bytesPerFrame;    int          samplesPerFrame;}PABLIO_Stream;/* Values for flags for OpenAudioStream(). */#define PABLIO_READ     (1<<0)#define PABLIO_WRITE    (1<<1)#define PABLIO_READ_WRITE    (PABLIO_READ|PABLIO_WRITE)#define PABLIO_MONO     (1<<2)#define PABLIO_STEREO   (1<<3)/************************************************************ * Write data to ring buffer. * Will not return until all the data has been written. */long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );/************************************************************ * Read data from ring buffer. * Will not return until all the data has been read. */long ReadAudioStream( PABLIO_Stream *aStream, void *data, long numFrames );/************************************************************ * Return the number of frames that could be written to the stream without * having to wait. */long GetAudioStreamWriteable( PABLIO_Stream *aStream );/************************************************************ * Return the number of frames that are available to be read from the * stream without having to wait. */long GetAudioStreamReadable( PABLIO_Stream *aStream );/************************************************************ * Opens a PortAudio stream with default characteristics. * Allocates PABLIO_Stream structure. * * flags parameter can be an ORed combination of: *    PABLIO_READ, PABLIO_WRITE, or PABLIO_READ_WRITE, *    and either PABLIO_MONO or PABLIO_STEREO */PaError OpenAudioStream( PABLIO_Stream **aStreamPtr, double sampleRate,                         PaSampleFormat format, long flags );PaError CloseAudioStream( PABLIO_Stream *aStream );#ifdef __cplusplus}#endif /* __cplusplus */#endif /* _PABLIO_H */