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Diffstat (limited to 'portaudio/test/patest_stop_playout.c')
| -rw-r--r-- | portaudio/test/patest_stop_playout.c | 478 |
1 files changed, 0 insertions, 478 deletions
diff --git a/portaudio/test/patest_stop_playout.c b/portaudio/test/patest_stop_playout.c deleted file mode 100644 index 7e6932e..0000000 --- a/portaudio/test/patest_stop_playout.c +++ /dev/null @@ -1,478 +0,0 @@ -/** @file patest_stop_playout.c - @ingroup test_src - @brief Test whether all queued samples are played when Pa_StopStream() - is used with a callback or read/write stream, or when the callback - returns paComplete. - @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) 1999-2004 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 <stdio.h> -#include <math.h> -#include "portaudio.h" - -#define SAMPLE_RATE (44100) -#define FRAMES_PER_BUFFER (1024) - -#define TONE_SECONDS (1) /* long tone */ -#define TONE_FADE_SECONDS (.04) /* fades at start and end of long tone */ -#define GAP_SECONDS (.25) /* gap between long tone and blip */ -#define BLIP_SECONDS (.035) /* short blip */ - -#define NUM_REPEATS (3) - -#ifndef M_PI -#define M_PI (3.14159265) -#endif - -#define TABLE_SIZE (2048) -typedef struct -{ - float sine[TABLE_SIZE+1]; - - int repeatCount; - - double phase; - double lowIncrement, highIncrement; - - int gap1Length, toneLength, toneFadesLength, gap2Length, blipLength; - int gap1Countdown, toneCountdown, gap2Countdown, blipCountdown; -} -TestData; - - -static void RetriggerTestSignalGenerator( TestData *data ) -{ - data->phase = 0.; - data->gap1Countdown = data->gap1Length; - data->toneCountdown = data->toneLength; - data->gap2Countdown = data->gap2Length; - data->blipCountdown = data->blipLength; -} - - -static void ResetTestSignalGenerator( TestData *data ) -{ - data->repeatCount = 0; - RetriggerTestSignalGenerator( data ); -} - - -static void InitTestSignalGenerator( TestData *data ) -{ - int signalLengthModBufferLength, i; - - /* initialise sinusoidal wavetable */ - for( i=0; i<TABLE_SIZE; i++ ) - { - data->sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ); - } - data->sine[TABLE_SIZE] = data->sine[0]; /* guard point for linear interpolation */ - - - - data->lowIncrement = (330. / SAMPLE_RATE) * TABLE_SIZE; - data->highIncrement = (1760. / SAMPLE_RATE) * TABLE_SIZE; - - data->gap1Length = GAP_SECONDS * SAMPLE_RATE; - data->toneLength = TONE_SECONDS * SAMPLE_RATE; - data->toneFadesLength = TONE_FADE_SECONDS * SAMPLE_RATE; - data->gap2Length = GAP_SECONDS * SAMPLE_RATE; - data->blipLength = BLIP_SECONDS * SAMPLE_RATE; - - /* adjust signal length to be a multiple of the buffer length */ - signalLengthModBufferLength = (data->gap1Length + data->toneLength + data->gap2Length + data->blipLength) % FRAMES_PER_BUFFER; - if( signalLengthModBufferLength > 0 ) - data->toneLength += signalLengthModBufferLength; - - ResetTestSignalGenerator( data ); -} - - -#define MIN( a, b ) (((a)<(b))?(a):(b)) - -static void GenerateTestSignal( TestData *data, float *stereo, int frameCount ) -{ - int framesGenerated = 0; - float output; - long index; - float fraction; - int count, i; - - while( framesGenerated < frameCount && data->repeatCount < NUM_REPEATS ) - { - if( framesGenerated < frameCount && data->gap1Countdown > 0 ){ - count = MIN( frameCount - framesGenerated, data->gap1Countdown ); - for( i=0; i < count; ++i ) - { - *stereo++ = 0.f; - *stereo++ = 0.f; - } - - data->gap1Countdown -= count; - framesGenerated += count; - } - - if( framesGenerated < frameCount && data->toneCountdown > 0 ){ - count = MIN( frameCount - framesGenerated, data->toneCountdown ); - for( i=0; i < count; ++i ) - { - /* tone with data->lowIncrement phase increment */ - index = (long)data->phase; - fraction = data->phase - index; - output = data->sine[ index ] + (data->sine[ index + 1 ] - data->sine[ index ]) * fraction; - - data->phase += data->lowIncrement; - while( data->phase >= TABLE_SIZE ) - data->phase -= TABLE_SIZE; - - /* apply fade to ends */ - - if( data->toneCountdown < data->toneFadesLength ) - { - /* cosine-bell fade out at end */ - output *= (-cos(((float)data->toneCountdown / (float)data->toneFadesLength) * M_PI) + 1.) * .5; - } - else if( data->toneCountdown > data->toneLength - data->toneFadesLength ) - { - /* cosine-bell fade in at start */ - output *= (cos(((float)(data->toneCountdown - (data->toneLength - data->toneFadesLength)) / (float)data->toneFadesLength) * M_PI) + 1.) * .5; - } - - output *= .5; /* play tone half as loud as blip */ - - *stereo++ = output; - *stereo++ = output; - - data->toneCountdown--; - } - - framesGenerated += count; - } - - if( framesGenerated < frameCount && data->gap2Countdown > 0 ){ - count = MIN( frameCount - framesGenerated, data->gap2Countdown ); - for( i=0; i < count; ++i ) - { - *stereo++ = 0.f; - *stereo++ = 0.f; - } - - data->gap2Countdown -= count; - framesGenerated += count; - } - - if( framesGenerated < frameCount && data->blipCountdown > 0 ){ - count = MIN( frameCount - framesGenerated, data->blipCountdown ); - for( i=0; i < count; ++i ) - { - /* tone with data->highIncrement phase increment */ - index = (long)data->phase; - fraction = data->phase - index; - output = data->sine[ index ] + (data->sine[ index + 1 ] - data->sine[ index ]) * fraction; - - data->phase += data->highIncrement; - while( data->phase >= TABLE_SIZE ) - data->phase -= TABLE_SIZE; - - /* cosine-bell envelope over whole blip */ - output *= (-cos( ((float)data->blipCountdown / (float)data->blipLength) * 2. * M_PI) + 1.) * .5; - - *stereo++ = output; - *stereo++ = output; - - data->blipCountdown--; - } - - framesGenerated += count; - } - - - if( data->blipCountdown == 0 ) - { - RetriggerTestSignalGenerator( data ); - data->repeatCount++; - } - } - - if( framesGenerated < frameCount ) - { - count = frameCount - framesGenerated; - for( i=0; i < count; ++i ) - { - *stereo++ = 0.f; - *stereo++ = 0.f; - } - } -} - - -static int IsTestSignalFinished( TestData *data ) -{ - if( data->repeatCount >= NUM_REPEATS ) - return 1; - else - return 0; -} - - -static int TestCallback1( const void *inputBuffer, void *outputBuffer, - unsigned long frameCount, - const PaStreamCallbackTimeInfo* timeInfo, - PaStreamCallbackFlags statusFlags, - void *userData ) -{ - (void) inputBuffer; /* Prevent unused variable warnings. */ - (void) timeInfo; - (void) statusFlags; - - GenerateTestSignal( (TestData*)userData, (float*)outputBuffer, frameCount ); - - if( IsTestSignalFinished( (TestData*)userData ) ) - return paComplete; - else - return paContinue; -} - - -volatile int testCallback2Finished = 0; - -static int TestCallback2( const void *inputBuffer, void *outputBuffer, - unsigned long frameCount, - const PaStreamCallbackTimeInfo* timeInfo, - PaStreamCallbackFlags statusFlags, - void *userData ) -{ - (void) inputBuffer; /* Prevent unused variable warnings. */ - (void) timeInfo; - (void) statusFlags; - - GenerateTestSignal( (TestData*)userData, (float*)outputBuffer, frameCount ); - - if( IsTestSignalFinished( (TestData*)userData ) ) - testCallback2Finished = 1; - - return paContinue; -} - -/*******************************************************************/ -int main(void); -int main(void) -{ - PaStreamParameters outputParameters; - PaStream *stream; - PaError err; - TestData data; - float writeBuffer[ FRAMES_PER_BUFFER * 2 ]; - - printf("PortAudio Test: check that stopping stream plays out all queued samples. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER); - - InitTestSignalGenerator( &data ); - - err = Pa_Initialize(); - if( err != paNoError ) goto error; - - outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */ - outputParameters.channelCount = 2; /* stereo output */ - outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */ - outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency; - outputParameters.hostApiSpecificStreamInfo = NULL; - -/* test paComplete ---------------------------------------------------------- */ - - ResetTestSignalGenerator( &data ); - - 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 */ - TestCallback1, - &data ); - if( err != paNoError ) goto error; - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - printf("\nPlaying 'tone-blip' %d times using callback, stops by returning paComplete from callback.\n", NUM_REPEATS ); - printf("If final blip is not intact, callback+paComplete implementation may be faulty.\n\n" ); - - while( (err = Pa_IsStreamActive( stream )) == 1 ) - Pa_Sleep( 2 ); - - if( err != 0 ) goto error; - - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error; - - err = Pa_CloseStream( stream ); - if( err != paNoError ) goto error; - - Pa_Sleep( 500 ); - - -/* test paComplete ---------------------------------------------------------- */ - - ResetTestSignalGenerator( &data ); - - 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 */ - TestCallback1, - &data ); - if( err != paNoError ) goto error; - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - printf("\nPlaying 'tone-blip' %d times using callback, stops by returning paComplete from callback.\n", NUM_REPEATS ); - printf("If final blip is not intact or is followed by garbage, callback+paComplete implementation may be faulty.\n\n" ); - - while( (err = Pa_IsStreamActive( stream )) == 1 ) - Pa_Sleep( 5 ); - - printf("Waiting 5 seconds after paComplete before stopping the stream. Tests that buffers are flushed correctly.\n"); - Pa_Sleep( 5000 ); - - if( err != 0 ) goto error; - - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error; - - err = Pa_CloseStream( stream ); - if( err != paNoError ) goto error; - - Pa_Sleep( 500 ); - - -/* test Pa_StopStream() with callback --------------------------------------- */ - - ResetTestSignalGenerator( &data ); - - testCallback2Finished = 0; - - 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 */ - TestCallback2, - &data ); - if( err != paNoError ) goto error; - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - - printf("\nPlaying 'tone-blip' %d times using callback, stops by calling Pa_StopStream.\n", NUM_REPEATS ); - printf("If final blip is not intact, callback+Pa_StopStream implementation may be faulty.\n\n" ); - - /* note that polling a volatile flag is not a good way to synchronise with - the callback, but it's the best we can do portably. */ - while( !testCallback2Finished ) - Pa_Sleep( 2 ); - - Pa_Sleep( 500 ); - - err = Pa_StopStream( stream ); - if( err != paNoError ) goto error; - - - err = Pa_CloseStream( stream ); - if( err != paNoError ) goto error; - - Pa_Sleep( 500 ); - -/* test Pa_StopStream() with Pa_WriteStream --------------------------------- */ - - ResetTestSignalGenerator( &data ); - - 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 */ - NULL, /* no callback, use blocking API */ - NULL ); /* no callback, so no callback userData */ - if( err != paNoError ) goto error; - - err = Pa_StartStream( stream ); - if( err != paNoError ) goto error; - - - printf("\nPlaying 'tone-blip' %d times using Pa_WriteStream, stops by calling Pa_StopStream.\n", NUM_REPEATS ); - printf("If final blip is not intact, Pa_WriteStream+Pa_StopStream implementation may be faulty.\n\n" ); - - do{ - GenerateTestSignal( &data, writeBuffer, FRAMES_PER_BUFFER ); - err = Pa_WriteStream( stream, writeBuffer, FRAMES_PER_BUFFER ); - if( err != paNoError ) goto error; - - }while( !IsTestSignalFinished( &data ) ); - - err = Pa_StopStream( stream ); - if( err != paNoError ) 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; -} |