This is deprecated code from 1999.
+++ /dev/null
-README for PABLIO
-Portable Audio Blocking I/O Library
-Author: Phil Burk
-
-PABLIO is a simplified interface to PortAudio that provides
-read/write style blocking I/O.
-
-PABLIO is DEPRECATED. We recommend that people use the blocking I/O calls
-that are now part of the PortAudio API. These are Pa_ReadStream() and
-Pa_WriteStream().
-
-http://portaudio.com/docs/v19-doxydocs/blocking_read_write.html
-
-/*
- * More information on PortAudio at: http://www.portaudio.com
- * Copyright (c) 1999-2000 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.
- */
-
-
+++ /dev/null
-/*
- * $Id$
- * pablio.c
- * Portable Audio Blocking Input/Output utility.
- *
- * Author: Phil Burk, http://www.softsynth.com
- *
- * This program uses the PortAudio 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 "pa_ringbuffer.h"
-#include "pablio.h"
-#include <string.h>
-
-/************************************************************************/
-/******** Constants *****************************************************/
-/************************************************************************/
-
-#define FRAMES_PER_BUFFER (256)
-
-/************************************************************************/
-/******** Prototypes ****************************************************/
-/************************************************************************/
-
-static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
- unsigned long framesPerBuffer,
- PaTimestamp outTime, void *userData );
-static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame );
-static PaError PABLIO_TermFIFO( RingBuffer *rbuf );
-
-/************************************************************************/
-/******** Functions *****************************************************/
-/************************************************************************/
-
-/* Called from PortAudio.
- * Read and write data only if there is room in FIFOs.
- */
-static int blockingIOCallback( void *inputBuffer, void *outputBuffer,
- unsigned long framesPerBuffer,
- PaTimestamp outTime, void *userData )
-{
- PABLIO_Stream *data = (PABLIO_Stream*)userData;
- long numBytes = data->bytesPerFrame * framesPerBuffer;
- (void) outTime;
-
- /* This may get called with NULL inputBuffer during initial setup. */
- if( inputBuffer != NULL )
- {
- PaUtil_WriteRingBuffer( &data->inFIFO, inputBuffer, numBytes );
- }
- if( outputBuffer != NULL )
- {
- int i;
- int numRead = PaUtil_ReadRingBuffer( &data->outFIFO, outputBuffer, numBytes );
- /* Zero out remainder of buffer if we run out of data. */
- for( i=numRead; i<numBytes; i++ )
- {
- ((char *)outputBuffer)[i] = 0;
- }
- }
-
- return 0;
-}
-
-/* Allocate buffer. */
-static PaError PABLIO_InitFIFO( RingBuffer *rbuf, long numFrames, long bytesPerFrame )
-{
- long numBytes = numFrames * bytesPerFrame;
- char *buffer = (char *) malloc( numBytes );
- if( buffer == NULL ) return paInsufficientMemory;
- memset( buffer, 0, numBytes );
- return (PaError) PaUtil_InitializeRingBuffer( rbuf, numBytes, buffer );
-}
-
-/* Free buffer. */
-static PaError PABLIO_TermFIFO( RingBuffer *rbuf )
-{
- if( rbuf->buffer ) free( rbuf->buffer );
- rbuf->buffer = NULL;
- return paNoError;
-}
-
-/************************************************************
- * Write data to ring buffer.
- * Will not return until all the data has been written.
- */
-long WriteAudioStream( PABLIO_Stream *aStream, void *data, long numFrames )
-{
- long bytesWritten;
- char *p = (char *) data;
- long numBytes = aStream->bytesPerFrame * numFrames;
- while( numBytes > 0)
- {
- bytesWritten = PaUtil_WriteRingBuffer( &aStream->outFIFO, p, numBytes );
- numBytes -= bytesWritten;
- p += bytesWritten;
- if( numBytes > 0) Pa_Sleep(10);
- }
- return 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 )
-{
- long bytesRead;
- char *p = (char *) data;
- long numBytes = aStream->bytesPerFrame * numFrames;
- while( numBytes > 0)
- {
- bytesRead = PaUtil_ReadRingBuffer( &aStream->inFIFO, p, numBytes );
- numBytes -= bytesRead;
- p += bytesRead;
- if( numBytes > 0) Pa_Sleep(10);
- }
- return numFrames;
-}
-
-/************************************************************
- * Return the number of frames that could be written to the stream without
- * having to wait.
- */
-long GetAudioStreamWriteable( PABLIO_Stream *aStream )
-{
- int bytesEmpty = PaUtil_GetRingBufferWriteAvailable( &aStream->outFIFO );
- return bytesEmpty / aStream->bytesPerFrame;
-}
-
-/************************************************************
- * Return the number of frames that are available to be read from the
- * stream without having to wait.
- */
-long GetAudioStreamReadable( PABLIO_Stream *aStream )
-{
- int bytesFull = PaUtil_GetRingBufferReadAvailable( &aStream->inFIFO );
- return bytesFull / aStream->bytesPerFrame;
-}
-
-/************************************************************/
-static unsigned long RoundUpToNextPowerOf2( unsigned long n )
-{
- long numBits = 0;
- if( ((n-1) & n) == 0) return n; /* Already Power of two. */
- while( n > 0 )
- {
- n= n>>1;
- numBits++;
- }
- return (1<<numBits);
-}
-
-/************************************************************
- * 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 **rwblPtr, double sampleRate,
- PaSampleFormat format, long flags )
-{
- long bytesPerSample;
- long doRead = 0;
- long doWrite = 0;
- PaError err;
- PABLIO_Stream *aStream;
- long minNumBuffers;
- long numFrames;
-
- /* Allocate PABLIO_Stream structure for caller. */
- aStream = (PABLIO_Stream *) malloc( sizeof(PABLIO_Stream) );
- if( aStream == NULL ) return paInsufficientMemory;
- memset( aStream, 0, sizeof(PABLIO_Stream) );
-
- /* Determine size of a sample. */
- bytesPerSample = Pa_GetSampleSize( format );
- if( bytesPerSample < 0 )
- {
- err = (PaError) bytesPerSample;
- goto error;
- }
- aStream->samplesPerFrame = ((flags&PABLIO_MONO) != 0) ? 1 : 2;
- aStream->bytesPerFrame = bytesPerSample * aStream->samplesPerFrame;
-
- /* Initialize PortAudio */
- err = Pa_Initialize();
- if( err != paNoError ) goto error;
-
- /* Warning: numFrames must be larger than amount of data processed per interrupt
- * inside PA to prevent glitches. Just to be safe, adjust size upwards.
- */
- minNumBuffers = 2 * Pa_GetMinNumBuffers( FRAMES_PER_BUFFER, sampleRate );
- numFrames = minNumBuffers * FRAMES_PER_BUFFER;
- numFrames = RoundUpToNextPowerOf2( numFrames );
-
- /* Initialize Ring Buffers */
- doRead = ((flags & PABLIO_READ) != 0);
- doWrite = ((flags & PABLIO_WRITE) != 0);
- if(doRead)
- {
- err = PABLIO_InitFIFO( &aStream->inFIFO, numFrames, aStream->bytesPerFrame );
- if( err != paNoError ) goto error;
- }
- if(doWrite)
- {
- long numBytes;
- err = PABLIO_InitFIFO( &aStream->outFIFO, numFrames, aStream->bytesPerFrame );
- if( err != paNoError ) goto error;
- /* Make Write FIFO appear full initially. */
- numBytes = PaUtil_GetRingBufferWriteAvailable( &aStream->outFIFO );
- PaUtil_AdvanceRingBufferWriteIndex( &aStream->outFIFO, numBytes );
- }
-
- /* Open a PortAudio stream that we will use to communicate with the underlying
- * audio drivers. */
- err = Pa_OpenStream(
- &aStream->stream,
- (doRead ? Pa_GetDefaultInputDeviceID() : paNoDevice),
- (doRead ? aStream->samplesPerFrame : 0 ),
- format,
- NULL,
- (doWrite ? Pa_GetDefaultOutputDeviceID() : paNoDevice),
- (doWrite ? aStream->samplesPerFrame : 0 ),
- format,
- NULL,
- sampleRate,
- FRAMES_PER_BUFFER,
- minNumBuffers,
- paClipOff, /* we won't output out of range samples so don't bother clipping them */
- blockingIOCallback,
- aStream );
- if( err != paNoError ) goto error;
-
- err = Pa_StartStream( aStream->stream );
- if( err != paNoError ) goto error;
-
- *rwblPtr = aStream;
- return paNoError;
-
-error:
- CloseAudioStream( aStream );
- *rwblPtr = NULL;
- return err;
-}
-
-/************************************************************/
-PaError CloseAudioStream( PABLIO_Stream *aStream )
-{
- PaError err;
- int bytesEmpty;
- int byteSize = aStream->outFIFO.bufferSize;
-
- /* If we are writing data, make sure we play everything written. */
- if( byteSize > 0 )
- {
- bytesEmpty = PaUtil_GetRingBufferWriteAvailable( &aStream->outFIFO );
- while( bytesEmpty < byteSize )
- {
- Pa_Sleep( 10 );
- bytesEmpty = PaUtil_GetRingBufferWriteAvailable( &aStream->outFIFO );
- }
- }
-
- err = Pa_StopStream( aStream->stream );
- if( err != paNoError ) goto error;
- err = Pa_CloseStream( aStream->stream );
- if( err != paNoError ) goto error;
- Pa_Terminate();
-
-error:
- PABLIO_TermFIFO( &aStream->inFIFO );
- PABLIO_TermFIFO( &aStream->outFIFO );
- free( aStream );
- return err;
-}
+++ /dev/null
-LIBRARY PABLIO
-DESCRIPTION 'PABLIO Portable Audio Blocking I/O'
-
-EXPORTS
- ; Explicit exports can go here
- Pa_Initialize @1
- Pa_Terminate @2
- Pa_GetHostError @3
- Pa_GetErrorText @4
- Pa_CountDevices @5
- Pa_GetDefaultInputDeviceID @6
- Pa_GetDefaultOutputDeviceID @7
- Pa_GetDeviceInfo @8
- Pa_OpenStream @9
- Pa_OpenDefaultStream @10
- Pa_CloseStream @11
- Pa_StartStream @12
- Pa_StopStream @13
- Pa_StreamActive @14
- Pa_StreamTime @15
- Pa_GetCPULoad @16
- Pa_GetMinNumBuffers @17
- Pa_Sleep @18
-
- OpenAudioStream @19
- CloseAudioStream @20
- WriteAudioStream @21
- ReadAudioStream @22
-
- Pa_GetSampleSize @23
-
- ;123456789012345678901234567890123456
- ;000000000111111111122222222223333333
-
-
+++ /dev/null
-#ifndef _PABLIO_H
-#define _PABLIO_H
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif /* __cplusplus */
-
-/*
- * $Id$
- * 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 "pa_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 */
+++ /dev/null
-/*
- * $Id$
- * test_rw.c
- * Read input from one stream and write it to another.
- *
- * Author: Phil Burk, http://www.softsynth.com/portaudio/
- *
- * This program uses 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 "pablio.h"
-
-/*
-** Note that many of the older ISA sound cards on PCs do NOT support
-** full duplex audio (simultaneous record and playback).
-** And some only support full duplex at lower sample rates.
-*/
-#define SAMPLE_RATE (44100)
-#define NUM_SECONDS (5)
-#define SAMPLES_PER_FRAME (2)
-#define FRAMES_PER_BLOCK (64)
-
-/* Select whether we will use floats or shorts. */
-#if 1
-#define SAMPLE_TYPE paFloat32
-typedef float SAMPLE;
-#else
-#define SAMPLE_TYPE paInt16
-typedef short SAMPLE;
-#endif
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- int i;
- SAMPLE samples[SAMPLES_PER_FRAME * FRAMES_PER_BLOCK];
- PaError err;
- PABLIO_Stream *aStream;
-
- printf("Full duplex sound test using PortAudio and RingBuffers\n");
- fflush(stdout);
-
- /* Open simplified blocking I/O layer on top of PortAudio. */
- err = OpenAudioStream( &aStream, SAMPLE_RATE, SAMPLE_TYPE,
- (PABLIO_READ_WRITE | PABLIO_STEREO) );
- if( err != paNoError ) goto error;
-
- /* Process samples in the foreground. */
- for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
- {
- /* Read one block of data into sample array from audio input. */
- ReadAudioStream( aStream, samples, FRAMES_PER_BLOCK );
- /* Write that same block of data to output. */
- WriteAudioStream( aStream, samples, FRAMES_PER_BLOCK );
- }
-
- CloseAudioStream( aStream );
-
- printf("Full duplex sound test complete.\n" );
- fflush(stdout);
- return 0;
-
-error:
- Pa_Terminate();
- fprintf( stderr, "An error occurred while using the portaudio stream\n" );
- fprintf( stderr, "Error number: %d\n", err );
- fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
- return -1;
-}
+++ /dev/null
-/*
- * $Id$
- * test_rw_echo.c
- * Echo delayed input to output.
- *
- * Author: Phil Burk, http://www.softsynth.com/portaudio/
- *
- * This program uses PABLIO, the Portable Audio Blocking I/O Library.
- * PABLIO is built on top of PortAudio, the Portable Audio Library.
- *
- * Note that if you need low latency, you should not use PABLIO.
- * Use the PA_OpenStream callback technique which is lower level
- * than PABLIO.
- *
- * 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 "pablio.h"
-#include <string.h>
-
-/*
-** Note that many of the older ISA sound cards on PCs do NOT support
-** full duplex audio (simultaneous record and playback).
-** And some only support full duplex at lower sample rates.
-*/
-#define SAMPLE_RATE (22050)
-#define NUM_SECONDS (20)
-#define SAMPLES_PER_FRAME (2)
-
-/* Select whether we will use floats or shorts. */
-#if 1
-#define SAMPLE_TYPE paFloat32
-typedef float SAMPLE;
-#else
-#define SAMPLE_TYPE paInt16
-typedef short SAMPLE;
-#endif
-
-#define NUM_ECHO_FRAMES (2*SAMPLE_RATE)
-SAMPLE samples[NUM_ECHO_FRAMES][SAMPLES_PER_FRAME] = {0.0};
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- int i;
- PaError err;
- PABLIO_Stream *aInStream;
- PABLIO_Stream *aOutStream;
- int index;
-
- printf("Full duplex sound test using PABLIO\n");
- fflush(stdout);
-
- /* Open simplified blocking I/O layer on top of PortAudio. */
- /* Open input first so it can start to fill buffers. */
- err = OpenAudioStream( &aInStream, SAMPLE_RATE, SAMPLE_TYPE,
- (PABLIO_READ | PABLIO_STEREO) );
- if( err != paNoError ) goto error;
- /* printf("opened input\n"); fflush(stdout); /**/
-
- err = OpenAudioStream( &aOutStream, SAMPLE_RATE, SAMPLE_TYPE,
- (PABLIO_WRITE | PABLIO_STEREO) );
- if( err != paNoError ) goto error;
- /* printf("opened output\n"); fflush(stdout); /**/
-
- /* Process samples in the foreground. */
- index = 0;
- for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i++ )
- {
- /* Write old frame of data to output. */
- /* samples[index][1] = (i&256) * (1.0f/256.0f); /* sawtooth */
- WriteAudioStream( aOutStream, &samples[index][0], 1 );
-
- /* Read one frame of data into sample array for later output. */
- ReadAudioStream( aInStream, &samples[index][0], 1 );
- index += 1;
- if( index >= NUM_ECHO_FRAMES ) index = 0;
-
- if( (i & 0xFFFF) == 0 ) printf("i = %d\n", i ); fflush(stdout); /**/
- }
-
- CloseAudioStream( aOutStream );
- CloseAudioStream( aInStream );
-
- printf("R/W echo sound test complete.\n" );
- fflush(stdout);
- return 0;
-
-error:
- fprintf( stderr, "An error occurred while using PortAudio\n" );
- fprintf( stderr, "Error number: %d\n", err );
- fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
- return -1;
-}
+++ /dev/null
-/*
- * $Id$
- * test_w_saw.c
- * Generate stereo sawtooth waveforms.
- *
- * Author: Phil Burk, http://www.softsynth.com
- *
- * This program uses 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 "pablio.h"
-#include <string.h>
-
-#define SAMPLE_RATE (44100)
-#define NUM_SECONDS (6)
-#define SAMPLES_PER_FRAME (2)
-
-#define FREQUENCY (220.0f)
-#define PHASE_INCREMENT (2.0f * FREQUENCY / SAMPLE_RATE)
-#define FRAMES_PER_BLOCK (100)
-
-float samples[FRAMES_PER_BLOCK][SAMPLES_PER_FRAME];
-float phases[SAMPLES_PER_FRAME];
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- int i,j;
- PaError err;
- PABLIO_Stream *aOutStream;
-
- printf("Generate sawtooth waves using PABLIO.\n");
- fflush(stdout);
-
- /* Open simplified blocking I/O layer on top of PortAudio. */
- err = OpenAudioStream( &aOutStream, SAMPLE_RATE, paFloat32,
- (PABLIO_WRITE | PABLIO_STEREO) );
- if( err != paNoError ) goto error;
-
- /* Initialize oscillator phases. */
- phases[0] = 0.0;
- phases[1] = 0.0;
-
- for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
- {
- /* Generate sawtooth waveforms in a block for efficiency. */
- for( j=0; j<FRAMES_PER_BLOCK; j++ )
- {
- /* Generate a sawtooth wave by incrementing a variable. */
- phases[0] += PHASE_INCREMENT;
- /* The signal range is -1.0 to +1.0 so wrap around if we go over. */
- if( phases[0] > 1.0f ) phases[0] -= 2.0f;
- samples[j][0] = phases[0];
-
- /* On the second channel, generate a sawtooth wave a fifth higher. */
- phases[1] += PHASE_INCREMENT * (3.0f / 2.0f);
- if( phases[1] > 1.0f ) phases[1] -= 2.0f;
- samples[j][1] = phases[1];
- }
-
- /* Write samples to output. */
- WriteAudioStream( aOutStream, samples, FRAMES_PER_BLOCK );
- }
-
- CloseAudioStream( aOutStream );
-
- printf("Sawtooth sound test complete.\n" );
- fflush(stdout);
- return 0;
-
-error:
- fprintf( stderr, "An error occurred while using PABLIO\n" );
- fprintf( stderr, "Error number: %d\n", err );
- fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
- return -1;
-}
+++ /dev/null
-/*
- * $Id$
- * test_w_saw8.c
- * Generate stereo 8 bit sawtooth waveforms.
- *
- * Author: Phil Burk, http://www.softsynth.com
- *
- * This program uses 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 "pablio.h"
-#include <string.h>
-
-#define SAMPLE_RATE (22050)
-#define NUM_SECONDS (6)
-#define SAMPLES_PER_FRAME (2)
-
-
-#define FRAMES_PER_BLOCK (100)
-
-unsigned char samples[FRAMES_PER_BLOCK][SAMPLES_PER_FRAME];
-unsigned char phases[SAMPLES_PER_FRAME];
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- int i,j;
- PaError err;
- PABLIO_Stream *aOutStream;
-
- printf("Generate unsigned 8 bit sawtooth waves using PABLIO.\n");
- fflush(stdout);
-
- /* Open simplified blocking I/O layer on top of PortAudio. */
- err = OpenAudioStream( &aOutStream, SAMPLE_RATE, paUInt8,
- (PABLIO_WRITE | PABLIO_STEREO) );
- if( err != paNoError ) goto error;
-
- /* Initialize oscillator phases to "ground" level for paUInt8. */
- phases[0] = 128;
- phases[1] = 128;
-
- for( i=0; i<(NUM_SECONDS * SAMPLE_RATE); i += FRAMES_PER_BLOCK )
- {
- /* Generate sawtooth waveforms in a block for efficiency. */
- for( j=0; j<FRAMES_PER_BLOCK; j++ )
- {
- /* Generate a sawtooth wave by incrementing a variable. */
- phases[0] += 1;
- /* We don't have to do anything special to wrap when using paUint8 because
- * 8 bit arithmetic automatically wraps. */
- samples[j][0] = phases[0];
-
- /* On the second channel, generate a higher sawtooth wave. */
- phases[1] += 3;
- samples[j][1] = phases[1];
- }
-
- /* Write samples to output. */
- WriteAudioStream( aOutStream, samples, FRAMES_PER_BLOCK );
- }
-
- CloseAudioStream( aOutStream );
-
- printf("Sawtooth sound test complete.\n" );
- fflush(stdout);
- return 0;
-
-error:
- fprintf( stderr, "An error occurred while using PABLIO\n" );
- fprintf( stderr, "Error number: %d\n", err );
- fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
- return -1;
-}
projects / portaudio / commitdiff