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diff --git a/portaudio/test/patest_sine_time.c b/portaudio/test/patest_sine_time.c
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-/** @file patest_sine_time.c
- @ingroup test_src
- @brief Play a sine wave for several seconds, pausing in the middle.
- Uses the Pa_GetStreamTime() call.
- @author Ross Bencina <rossb@audiomulch.com>
- @author Phil Burk <philburk@softsynth.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"
-#include "pa_util.h"
-
-#define NUM_SECONDS (8)
-#define SAMPLE_RATE (44100)
-#define FRAMES_PER_BUFFER (64)
-
-#ifndef M_PI
-#define M_PI (3.14159265)
-#endif
-#define TWOPI (M_PI * 2.0)
-
-#define TABLE_SIZE (200)
-
-typedef struct
-{
- double left_phase;
- double right_phase;
- volatile PaTime outTime;
-}
-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;
- float *out = (float*)outputBuffer;
- unsigned int i;
-
- double left_phaseInc = 0.02;
- double right_phaseInc = 0.06;
-
- double left_phase = data->left_phase;
- double right_phase = data->right_phase;
-
- (void) statusFlags; /* Prevent unused variable warnings. */
- (void) inputBuffer;
-
- data->outTime = timeInfo->outputBufferDacTime;
-
- for( i=0; i<framesPerBuffer; i++ )
- {
- left_phase += left_phaseInc;
- if( left_phase > TWOPI ) left_phase -= TWOPI;
- *out++ = (float) sin( left_phase );
-
- right_phase += right_phaseInc;
- if( right_phase > TWOPI ) right_phase -= TWOPI;
- *out++ = (float) sin( right_phase );
- }
-
- data->left_phase = left_phase;
- data->right_phase = right_phase;
-
- return paContinue;
-}
-
-/*******************************************************************/
-static void ReportStreamTime( PaStream *stream, paTestData *data );
-static void ReportStreamTime( PaStream *stream, paTestData *data )
-{
- PaTime streamTime, latency, outTime;
-
- streamTime = Pa_GetStreamTime( stream );
- outTime = data->outTime;
- if( outTime < 0.0 )
- {
- printf("Stream time = %8.1f\n", streamTime );
- }
- else
- {
- latency = outTime - streamTime;
- printf("Stream time = %8.4f, outTime = %8.4f, latency = %8.4f\n",
- streamTime, outTime, latency );
- }
- fflush(stdout);
-}
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- PaStreamParameters outputParameters;
- PaStream *stream;
- PaError err;
- paTestData data;
- PaTime startTime;
-
- printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
-
- data.left_phase = data.right_phase = 0;
-
- 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 = paFloat32; /* 32 bit floating point output */
- outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
- outputParameters.hostApiSpecificStreamInfo = NULL;
-
- err = Pa_OpenStream(
- &stream,
- NULL, /* no input */
- &outputParameters,
- SAMPLE_RATE,
- 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;
-
- /* Watch until sound is halfway finished. */
- printf("Play for %d seconds.\n", NUM_SECONDS/2 ); fflush(stdout);
-
- data.outTime = -1.0; /* mark time for callback as undefined */
- err = Pa_StartStream( stream );
- if( err != paNoError ) goto error;
-
- startTime = Pa_GetStreamTime( stream );
-
- do
- {
- ReportStreamTime( stream, &data );
- Pa_Sleep(100);
- } while( (Pa_GetStreamTime( stream ) - startTime) < (NUM_SECONDS/2) );
-
- /* Stop sound for 2 seconds. */
- err = Pa_StopStream( stream );
- if( err != paNoError ) goto error;
-
- printf("Pause for 2 seconds.\n"); fflush(stdout);
- Pa_Sleep( 2000 );
-
- data.outTime = -1.0; /* mark time for callback as undefined */
- err = Pa_StartStream( stream );
- if( err != paNoError ) goto error;
-
- startTime = Pa_GetStreamTime( stream );
-
- printf("Play until sound is finished.\n"); fflush(stdout);
- do
- {
- ReportStreamTime( stream, &data );
- Pa_Sleep(100);
- } while( (Pa_GetStreamTime( stream ) - startTime) < (NUM_SECONDS/2) );
-
- 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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