#ifndef _PABLIO_H #define _PABLIO_H #ifdef __cplusplus extern "C" { #endif /* __cplusplus */ /* * $Id: pablio_pd.h,v 1.1.1.2 2004-02-02 11:27:58 ggeiger Exp $ * 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.audiomulch.com/portaudio/ * 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. * * 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. * * 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. * */ #include #include #include #include "portaudio.h" #include "ringbuffer.h" #include 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, */ PaError OpenAudioStream( PABLIO_Stream **rwblPtr, double sampleRate, PaSampleFormat format, long flags, int nchannels, int framesperbuf, int nbuffers, int indeviceno, int outdeviceno); /* MSP */ PaError CloseAudioStream( PABLIO_Stream *aStream ); #ifdef __cplusplus } #endif /* __cplusplus */ #endif /* _PABLIO_H */