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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_multi_sine.c
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
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-rw-r--r--portaudio/test/patest_multi_sine.c205
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diff --git a/portaudio/test/patest_multi_sine.c b/portaudio/test/patest_multi_sine.c
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-/** @file patest_multi_sine.c
- @ingroup test_src
- @brief Play a different sine wave on each channel.
- @author Phil Burk http://www.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"
-
-#define SAMPLE_RATE (44100)
-#define FRAMES_PER_BUFFER (128)
-#define FREQ_INCR (300.0 / SAMPLE_RATE)
-#define MAX_CHANNELS (64)
-
-#ifndef M_PI
-#define M_PI (3.14159265)
-#endif
-
-typedef struct
-{
- short interleaved; /* Nonzero for interleaved / zero for non-interleaved. */
- int numChannels; /* Actually used. */
- double phases[MAX_CHANNELS]; /* Each channel gets its' own frequency. */
-}
-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)
-{
- int frameIndex, channelIndex;
- float** outputs = (float**)outputBuffer;
- paTestData* data = (paTestData*)userData;
-
- (void) inputBuffer; /* Prevent unused arg warning. */
- if (data->interleaved)
- {
- float *out = (float*)outputBuffer; /* interleaved version */
- for( frameIndex=0; frameIndex<(int)framesPerBuffer; frameIndex++ )
- {
- for( channelIndex=0; channelIndex<data->numChannels; channelIndex++ )
- {
- /* Output sine wave on every channel. */
- *out++ = (float) sin(data->phases[channelIndex]);
-
- /* Play each channel at a higher frequency. */
- data->phases[channelIndex] += FREQ_INCR * (4 + channelIndex);
- if( data->phases[channelIndex] >= (2.0 * M_PI) ) data->phases[channelIndex] -= (2.0 * M_PI);
- }
- }
- }
- else
- {
- for( frameIndex=0; frameIndex<(int)framesPerBuffer; frameIndex++ )
- {
- for( channelIndex=0; channelIndex<data->numChannels; channelIndex++ )
- {
- /* Output sine wave on every channel. */
- outputs[channelIndex][frameIndex] = (float) sin(data->phases[channelIndex]);
-
- /* Play each channel at a higher frequency. */
- data->phases[channelIndex] += FREQ_INCR * (4 + channelIndex);
- if( data->phases[channelIndex] >= (2.0 * M_PI) ) data->phases[channelIndex] -= (2.0 * M_PI);
- }
- }
- }
- return 0;
-}
-
-/*******************************************************************/
-int test(short interleaved)
-{
- PaStream* stream;
- PaStreamParameters outputParameters;
- PaError err;
- const PaDeviceInfo* pdi;
- paTestData data;
- short n;
-
- outputParameters.device = Pa_GetDefaultOutputDevice(); /* Default output device, max channels. */
- if (outputParameters.device == paNoDevice) {
- fprintf(stderr,"Error: No default output device.\n");
- return paInvalidDevice;
- }
- pdi = Pa_GetDeviceInfo(outputParameters.device);
- outputParameters.channelCount = pdi->maxOutputChannels;
- if (outputParameters.channelCount > MAX_CHANNELS)
- outputParameters.channelCount = MAX_CHANNELS;
- outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
- outputParameters.suggestedLatency = pdi->defaultLowOutputLatency;
- outputParameters.hostApiSpecificStreamInfo = NULL;
-
- data.interleaved = interleaved;
- data.numChannels = outputParameters.channelCount;
- for (n = 0; n < data.numChannels; n++)
- data.phases[n] = 0.0; /* Phases wrap and maybe don't need initialisation. */
- printf("%d ", data.numChannels);
- if (interleaved)
- printf("interleaved ");
- else
- {
- printf(" non-interleaved ");
- outputParameters.sampleFormat |= paNonInterleaved;
- }
- printf("channels.\n");
-
- err = Pa_OpenStream(&stream,
- NULL, /* No input. */
- &outputParameters,
- SAMPLE_RATE, /* Sample rate. */
- FRAMES_PER_BUFFER, /* Frames per buffer. */
- paClipOff, /* Samples never out of range, no clipping. */
- patestCallback,
- &data);
- if (err == paNoError)
- {
- err = Pa_StartStream(stream);
- if (err == paNoError)
- {
- printf("Hit ENTER to stop this test.\n");
- getchar();
- err = Pa_StopStream(stream);
- }
- Pa_CloseStream( stream );
- }
- return err;
-}
-
-
-/*******************************************************************/
-int main(void)
-{
- PaError err;
-
- printf("PortAudio Test: output sine wave on each channel.\n" );
-
- err = Pa_Initialize();
- if (err != paNoError)
- goto done;
-
- err = test(1); /* 1 means interleaved. */
- if (err != paNoError)
- goto done;
-
- err = test(0); /* 0 means not interleaved. */
- if (err != paNoError)
- goto done;
-
- printf("Test finished.\n");
-done:
- if (err)
- {
- 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));
- }
- Pa_Terminate();
- return 0;
-}