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authorsanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
committersanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
commita4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 (patch)
tree13bd5bfa15e6fea2a12f176bae79adf9c6fd0933 /portaudio/test/patest_two_rates.c
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
Diffstat (limited to 'portaudio/test/patest_two_rates.c')
-rw-r--r--portaudio/test/patest_two_rates.c178
1 files changed, 0 insertions, 178 deletions
diff --git a/portaudio/test/patest_two_rates.c b/portaudio/test/patest_two_rates.c
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--- a/portaudio/test/patest_two_rates.c
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@@ -1,178 +0,0 @@
-/** @file patest_two_rates.c
- @ingroup test_src
- @brief Play two streams at different rates to make sure they don't interfere.
- @author Phil Burk <philburk@softsynth.com>
-*/
-/*
- * $Id$
- *
- * 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 <math.h>
-#include "portaudio.h"
-
-#define OUTPUT_DEVICE (Pa_GetDefaultOutputDeviceID())
-#define SAMPLE_RATE_1 (44100)
-#define SAMPLE_RATE_2 (48000)
-#define FRAMES_PER_BUFFER (256)
-#define FREQ_INCR (0.1)
-
-#ifndef M_PI
-#define M_PI (3.14159265)
-#endif
-
-typedef struct
-{
- double phase;
- int numFrames;
-} 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;
- int frameIndex;
- (void) timeInfo; /* Prevent unused variable warnings. */
- (void) inputBuffer;
-
- for( frameIndex=0; frameIndex<(int)framesPerBuffer; frameIndex++ )
- {
- /* Generate sine wave. */
- float value = (float) 0.3 * sin(data->phase);
- /* Stereo - two channels. */
- *out++ = value;
- *out++ = value;
-
- data->phase += FREQ_INCR;
- if( data->phase >= (2.0 * M_PI) ) data->phase -= (2.0 * M_PI);
- }
- data->numFrames += 1;
- return 0;
-}
-
-/*******************************************************************/
-int main(void);
-int main(void)
-{
- PaError err;
- PaStreamParameters outputParameters;
- PaStream *stream1;
- PaStream *stream2;
- paTestData data1 = {0};
- paTestData data2 = {0};
- printf("PortAudio Test: two rates.\n" );
-
- 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;
-
- /* Start first stream. **********************/
- err = Pa_OpenStream(
- &stream1,
- NULL, /* no input */
- &outputParameters,
- SAMPLE_RATE_1,
- FRAMES_PER_BUFFER,
- paClipOff, /* we won't output out of range samples so don't bother clipping them */
- patestCallback,
- &data1 );
- if( err != paNoError ) goto error;
-
- err = Pa_StartStream( stream1 );
- if( err != paNoError ) goto error;
-
- Pa_Sleep( 3 * 1000 );
-
- /* Start second stream. **********************/
- err = Pa_OpenStream(
- &stream2,
- NULL, /* no input */
- &outputParameters,
- SAMPLE_RATE_2,
- FRAMES_PER_BUFFER,
- paClipOff, /* we won't output out of range samples so don't bother clipping them */
- patestCallback,
- &data2 );
- if( err != paNoError ) goto error;
-
- err = Pa_StartStream( stream2 );
- if( err != paNoError ) goto error;
-
- Pa_Sleep( 3 * 1000 );
-
- err = Pa_StopStream( stream2 );
- if( err != paNoError ) goto error;
-
- Pa_Sleep( 3 * 1000 );
-
- err = Pa_StopStream( stream1 );
- if( err != paNoError ) goto error;
-
- Pa_CloseStream( stream2 );
- Pa_CloseStream( stream1 );
-
- Pa_Terminate();
-
- printf("NumFrames = %d on stream1, %d on stream2.\n", data1.numFrames, data2.numFrames );
- 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;
-}