diff options
Diffstat (limited to '3rdparty/portaudio/test/patest_callbackstop.c')
| -rw-r--r-- | 3rdparty/portaudio/test/patest_callbackstop.c | 252 |
1 files changed, 252 insertions, 0 deletions
diff --git a/3rdparty/portaudio/test/patest_callbackstop.c b/3rdparty/portaudio/test/patest_callbackstop.c new file mode 100644 index 0000000..fba9dca --- /dev/null +++ b/3rdparty/portaudio/test/patest_callbackstop.c @@ -0,0 +1,252 @@ +/** @file patest_callbackstop.c + @ingroup test_src + @brief Test the paComplete callback result code. + @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) 1999-2000 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 NUM_SECONDS (5) +#define NUM_LOOPS (4) +#define SAMPLE_RATE (44100) +#define FRAMES_PER_BUFFER (67) + +#ifndef M_PI +#define M_PI (3.14159265) +#endif + +#define TABLE_SIZE (200) +typedef struct +{ + float sine[TABLE_SIZE]; + int phase; + unsigned long generatedFramesCount; + volatile int callbackReturnedPaComplete; + volatile int callbackInvokedAfterReturningPaComplete; + char message[100]; +} +TestData; + +/* + This routine will be called by the PortAudio stream when audio is needed. + It may be 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 TestCallback( const void *input, void *output, + unsigned long frameCount, + const PaStreamCallbackTimeInfo* timeInfo, + PaStreamCallbackFlags statusFlags, + void *userData ) +{ + TestData *data = (TestData*)userData; + float *out = (float*)output; + unsigned long i; + float x; + + (void) input; /* Prevent unused variable warnings. */ + (void) timeInfo; + (void) statusFlags; + + + if( data->callbackReturnedPaComplete ) + data->callbackInvokedAfterReturningPaComplete = 1; + + for( i=0; i<frameCount; i++ ) + { + /* generate tone */ + + x = data->sine[ data->phase++ ]; + if( data->phase >= TABLE_SIZE ) + data->phase -= TABLE_SIZE; + + *out++ = x; /* left */ + *out++ = x; /* right */ + } + + data->generatedFramesCount += frameCount; + if( data->generatedFramesCount >= (NUM_SECONDS * SAMPLE_RATE) ) + { + data->callbackReturnedPaComplete = 1; + return paComplete; + } + else + { + return paContinue; + } +} + +/* + * This routine is called by portaudio when playback is done. + */ +static void StreamFinished( void* userData ) +{ + TestData *data = (TestData *) userData; + printf( "Stream Completed: %s\n", data->message ); +} + + +/*----------------------------------------------------------------------------*/ +int main(void); +int main(void) +{ + PaStreamParameters outputParameters; + PaStream *stream; + PaError err; + TestData data; + int i, j; + + + printf( "PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", + SAMPLE_RATE, FRAMES_PER_BUFFER ); + + /* initialise sinusoidal wavetable */ + for( i=0; i<TABLE_SIZE; i++ ) + { + data.sine[i] = (float) sin( ((double)i/(double)TABLE_SIZE) * M_PI * 2. ); + } + + err = Pa_Initialize(); + if( err != paNoError ) goto error; + + outputParameters.device = Pa_GetDefaultOutputDevice(); + 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, /* output will be in-range, so no need to clip */ + TestCallback, + &data ); + if( err != paNoError ) goto error; + + sprintf( data.message, "Loop: XX" ); + err = Pa_SetStreamFinishedCallback( stream, &StreamFinished ); + if( err != paNoError ) goto error; + + printf("Repeating test %d times.\n", NUM_LOOPS ); + + for( i=0; i < NUM_LOOPS; ++i ) + { + data.phase = 0; + data.generatedFramesCount = 0; + data.callbackReturnedPaComplete = 0; + data.callbackInvokedAfterReturningPaComplete = 0; + sprintf( data.message, "Loop: %d", i ); + + err = Pa_StartStream( stream ); + if( err != paNoError ) goto error; + + printf("Play for %d seconds.\n", NUM_SECONDS ); + + /* wait for the callback to complete generating NUM_SECONDS of tone */ + + do + { + Pa_Sleep( 500 ); + } + while( !data.callbackReturnedPaComplete ); + + printf( "Callback returned paComplete.\n" ); + printf( "Waiting for buffers to finish playing...\n" ); + + /* wait for stream to become inactive, + or for a timeout of approximately NUM_SECONDS + */ + + j = 0; + while( (err = Pa_IsStreamActive( stream )) == 1 && j < NUM_SECONDS * 2 ) + { + printf(".\n" ); + Pa_Sleep( 500 ); + ++j; + } + + if( err < 0 ) + { + goto error; + } + else if( err == 1 ) + { + printf( "TEST FAILED: Timed out waiting for buffers to finish playing.\n" ); + } + else + { + printf("Buffers finished.\n" ); + } + + if( data.callbackInvokedAfterReturningPaComplete ) + { + printf( "TEST FAILED: Callback was invoked after returning paComplete.\n" ); + } + + + err = Pa_StopStream( stream ); + if( err != paNoError ) goto error; + + printf( "sleeping for 1 second...\n" ); + Pa_Sleep( 1000 ); + } + + 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; +} |