From a4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 Mon Sep 17 00:00:00 2001 From: sanine Date: Sat, 27 Aug 2022 23:52:56 -0500 Subject: add plibsys --- portaudio/test/patest_in_overflow.c | 236 ------------------------------------ 1 file changed, 236 deletions(-) delete mode 100644 portaudio/test/patest_in_overflow.c (limited to 'portaudio/test/patest_in_overflow.c') diff --git a/portaudio/test/patest_in_overflow.c b/portaudio/test/patest_in_overflow.c deleted file mode 100644 index 31868bd..0000000 --- a/portaudio/test/patest_in_overflow.c +++ /dev/null @@ -1,236 +0,0 @@ -/** @file patest_in_overflow.c - @ingroup test_src - @brief Count input overflows (using paInputOverflow flag) under - overloaded and normal conditions. - This test uses the same method to overload the stream as does - patest_out_underflow.c -- it generates sine waves until the cpu load - exceeds a certain level. However this test is only concerned with - input and so doesn't output any sound. - - @author Ross Bencina - @author Phil Burk -*/ -/* - * $Id$ - * - * This program uses the PortAudio Portable Audio Library. - * For more information see: http://www.portaudio.com - * Copyright (c) 1999-2004 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 -#include -#include "portaudio.h" - -#define MAX_SINES (500) -#define MAX_LOAD (1.2) -#define SAMPLE_RATE (44100) -#define FRAMES_PER_BUFFER (512) -#ifndef M_PI -#define M_PI (3.14159265) -#endif -#define TWOPI (M_PI * 2.0) - -typedef struct paTestData -{ - int sineCount; - double phases[MAX_SINES]; - int countOverflows; - int inputOverflowCount; -} -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; /* variable to hold dummy output */ - unsigned long i; - int j; - int finished = paContinue; - (void) timeInfo; /* Prevent unused variable warning. */ - (void) inputBuffer; /* Prevent unused variable warning. */ - (void) outputBuffer; /* Prevent unused variable warning. */ - - if( data->countOverflows && (statusFlags & paInputOverflow) ) - data->inputOverflowCount++; - - for( i=0; isineCount; j++ ) - { - /* Advance phase of next oscillator. */ - phase = data->phases[j]; - phase += phaseInc; - if( phase > TWOPI ) phase -= TWOPI; - - phaseInc *= 1.02; - if( phaseInc > 0.5 ) phaseInc *= 0.5; - - /* This is not a very efficient way to calc sines. */ - output += (float) sin( phase ); - data->phases[j] = phase; - } - /* this is an input-only stream so we don't actually use the output */ - out = (float) (output / data->sineCount); - (void) out; /* suppress unused variable warning*/ - } - - return finished; -} - -/*******************************************************************/ -int main(void); -int main(void) -{ - PaStreamParameters inputParameters; - PaStream *stream; - PaError err; - int safeSineCount, stressedSineCount; - int safeOverflowCount, stressedOverflowCount; - paTestData data = {0}; - double load; - - - printf("PortAudio Test: input only, no sound output. Load callback by performing calculations, count input overflows. SR = %d, BufSize = %d. MAX_LOAD = %f\n", - SAMPLE_RATE, FRAMES_PER_BUFFER, (float)MAX_LOAD ); - - err = Pa_Initialize(); - if( err != paNoError ) goto error; - - inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */ - if (inputParameters.device == paNoDevice) { - fprintf(stderr,"Error: No default input device.\n"); - goto error; - } - inputParameters.channelCount = 1; /* mono output */ - inputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */ - inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency; - inputParameters.hostApiSpecificStreamInfo = NULL; - - err = Pa_OpenStream( - &stream, - &inputParameters, - NULL, /* no output */ - 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; - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - printf("Establishing load conditions...\n" ); - - /* Determine number of sines required to get to 50% */ - do - { - data.sineCount++; - Pa_Sleep( 100 ); - - load = Pa_GetStreamCpuLoad( stream ); - printf("sineCount = %d, CPU load = %f\n", data.sineCount, load ); - } - while( load < 0.5 && data.sineCount < (MAX_SINES-1)); - - safeSineCount = data.sineCount; - - /* Calculate target stress value then ramp up to that level*/ - stressedSineCount = (int) (2.0 * data.sineCount * MAX_LOAD ); - if( stressedSineCount > MAX_SINES ) - stressedSineCount = MAX_SINES; - for( ; data.sineCount < stressedSineCount; data.sineCount++ ) - { - Pa_Sleep( 100 ); - load = Pa_GetStreamCpuLoad( stream ); - printf("STRESSING: sineCount = %d, CPU load = %f\n", data.sineCount, load ); - } - - printf("Counting overflows for 5 seconds.\n"); - data.countOverflows = 1; - Pa_Sleep( 5000 ); - - stressedOverflowCount = data.inputOverflowCount; - - data.countOverflows = 0; - data.sineCount = safeSineCount; - - printf("Resuming safe load...\n"); - Pa_Sleep( 1500 ); - data.inputOverflowCount = 0; - Pa_Sleep( 1500 ); - load = Pa_GetStreamCpuLoad( stream ); - printf("sineCount = %d, CPU load = %f\n", data.sineCount, load ); - - printf("Counting overflows for 5 seconds.\n"); - data.countOverflows = 1; - Pa_Sleep( 5000 ); - - safeOverflowCount = data.inputOverflowCount; - - printf("Stop stream.\n"); - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error; - - err = Pa_CloseStream( stream ); - if( err != paNoError ) goto error; - - Pa_Terminate(); - - if( stressedOverflowCount == 0 ) - printf("Test failed, no input overflows detected under stress.\n"); - else if( safeOverflowCount != 0 ) - printf("Test failed, %d unexpected overflows detected under safe load.\n", safeOverflowCount); - else - printf("Test passed, %d expected input overflows detected under stress, 0 unexpected overflows detected under safe load.\n", stressedOverflowCount ); - - 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; -} -- cgit v1.2.1