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diff --git a/portaudio/test/patest_sine8.c b/portaudio/test/patest_sine8.c
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-/** @file patest_sine8.c
- @ingroup test_src
- @brief Test 8 bit data: play a sine wave for several seconds.
- @author Ross Bencina <rossb@audiomulch.com>
-*/
-/*
- * $Id$
- *
- * 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 <math.h>
-#include "portaudio.h"
-
-#define NUM_SECONDS (8)
-#define SAMPLE_RATE (44100)
-#define TABLE_SIZE (200)
-#define TEST_UNSIGNED (0)
-
-#if TEST_UNSIGNED
-#define TEST_FORMAT paUInt8
-typedef unsigned char sample_t;
-#define SILENCE ((sample_t)0x80)
-#else
-#define TEST_FORMAT paInt8
-typedef char sample_t;
-#define SILENCE ((sample_t)0x00)
-#endif
-
-#ifndef M_PI
-#define M_PI (3.14159265)
-#endif
-
-typedef struct
-{
- sample_t sine[TABLE_SIZE];
- int left_phase;
- int right_phase;
- unsigned int framesToGo;
-}
-paTestData;
-
-/* This routine will be called by the PortAudio engine when audio is needed.
-** It may called at interrupt level on some machines so don't do anything
-** that could mess up the system like calling malloc() or free().
-*/
-static int patestCallback( const void *inputBuffer, void *outputBuffer,
- unsigned long framesPerBuffer,
- const PaStreamCallbackTimeInfo* timeInfo,
- PaStreamCallbackFlags statusFlags,
- void *userData )
-{
- paTestData *data = (paTestData*)userData;
- sample_t *out = (sample_t*)outputBuffer;
- int i;
- int framesToCalc;
- int finished = 0;
- (void) inputBuffer; /* Prevent unused variable warnings. */
-
- if( data->framesToGo < framesPerBuffer )
- {
- framesToCalc = data->framesToGo;
- data->framesToGo = 0;
- finished = 1;
- }
- else
- {
- framesToCalc = framesPerBuffer;
- data->framesToGo -= framesPerBuffer;
- }
-
- for( i=0; i<framesToCalc; i++ )
- {
- *out++ = data->sine[data->left_phase]; /* left */
- *out++ = data->sine[data->right_phase]; /* right */
- data->left_phase += 1;
- if( data->left_phase >= TABLE_SIZE ) data->left_phase -= TABLE_SIZE;
- data->right_phase += 3; /* higher pitch so we can distinguish left and right. */
- if( data->right_phase >= TABLE_SIZE ) data->right_phase -= TABLE_SIZE;
- }
- /* zero remainder of final buffer */
- for( ; i<(int)framesPerBuffer; i++ )
- {
- *out++ = SILENCE; /* left */
- *out++ = SILENCE; /* right */
- }
- return finished;
-}
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- PaStreamParameters outputParameters;
- PaStream* stream;
- PaError err;
- paTestData data;
- PaTime streamOpened;
- int i, totalSamps;
-
-#if TEST_UNSIGNED
- printf("PortAudio Test: output UNsigned 8 bit sine wave.\n");
-#else
- printf("PortAudio Test: output signed 8 bit sine wave.\n");
-#endif
- /* initialise sinusoidal wavetable */
- for( i=0; i<TABLE_SIZE; i++ )
- {
- data.sine[i] = SILENCE + (char) (127.0 * sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ));
- }
- data.left_phase = data.right_phase = 0;
- data.framesToGo = totalSamps = NUM_SECONDS * SAMPLE_RATE; /* Play for a few seconds. */
-
- err = Pa_Initialize();
- if( err != paNoError )
- goto error;
-
- outputParameters.device = Pa_GetDefaultOutputDevice(); /* Default output device. */
- if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- goto error;
- }
- outputParameters.channelCount = 2; /* Stereo output. */
- outputParameters.sampleFormat = TEST_FORMAT;
- outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
- outputParameters.hostApiSpecificStreamInfo = NULL;
- err = Pa_OpenStream( &stream,
- NULL, /* No input. */
- &outputParameters,
- SAMPLE_RATE,
- 256, /* Frames per buffer. */
- paClipOff, /* We won't output out of range samples so don't bother clipping them. */
- patestCallback,
- &data );
- if( err != paNoError )
- goto error;
-
- streamOpened = Pa_GetStreamTime( stream ); /* Time in seconds when stream was opened (approx). */
-
- err = Pa_StartStream( stream );
- if( err != paNoError )
- goto error;
-
- /* Watch until sound is halfway finished. */
- /* (Was ( Pa_StreamTime( stream ) < (totalSamps/2) ) in V18. */
- while( (Pa_GetStreamTime( stream ) - streamOpened) < (PaTime)NUM_SECONDS / 2.0 )
- Pa_Sleep(10);
-
- /* Stop sound. */
- printf("Stopping Stream.\n");
- err = Pa_StopStream( stream );
- if( err != paNoError )
- goto error;
-
- printf("Pause for 2 seconds.\n");
- Pa_Sleep( 2000 );
-
- printf("Starting again.\n");
- err = Pa_StartStream( stream );
- if( err != paNoError )
- goto error;
-
- printf("Waiting for sound to finish.\n");
-
- while( ( err = Pa_IsStreamActive( stream ) ) == 1 )
- Pa_Sleep(100);
- if( err < 0 )
- goto error;
-
- err = Pa_CloseStream( stream );
- if( err != paNoError )
- goto error;
-
- Pa_Terminate();
- printf("Test finished.\n");
- return err;
-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 err;
-}
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