| #ifndef _PABLIO_H |
| #define _PABLIO_H |
| |
| #ifdef __cplusplus |
| extern "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 */ |