Chris@4: /** @file patest_callbackstop.c Chris@4: @ingroup test_src Chris@4: @brief Test the paComplete callback result code. Chris@4: @author Ross Bencina Chris@4: */ Chris@4: /* Chris@4: * $Id: patest_callbackstop.c 1368 2008-03-01 00:38:27Z rossb $ Chris@4: * Chris@4: * This program uses the PortAudio Portable Audio Library. Chris@4: * For more information see: http://www.portaudio.com/ Chris@4: * Copyright (c) 1999-2000 Ross Bencina and Phil Burk Chris@4: * Chris@4: * Permission is hereby granted, free of charge, to any person obtaining Chris@4: * a copy of this software and associated documentation files Chris@4: * (the "Software"), to deal in the Software without restriction, Chris@4: * including without limitation the rights to use, copy, modify, merge, Chris@4: * publish, distribute, sublicense, and/or sell copies of the Software, Chris@4: * and to permit persons to whom the Software is furnished to do so, Chris@4: * subject to the following conditions: Chris@4: * Chris@4: * The above copyright notice and this permission notice shall be Chris@4: * included in all copies or substantial portions of the Software. Chris@4: * Chris@4: * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, Chris@4: * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF Chris@4: * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. Chris@4: * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR Chris@4: * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF Chris@4: * CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION Chris@4: * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. Chris@4: */ Chris@4: Chris@4: /* Chris@4: * The text above constitutes the entire PortAudio license; however, Chris@4: * the PortAudio community also makes the following non-binding requests: Chris@4: * Chris@4: * Any person wishing to distribute modifications to the Software is Chris@4: * requested to send the modifications to the original developer so that Chris@4: * they can be incorporated into the canonical version. It is also Chris@4: * requested that these non-binding requests be included along with the Chris@4: * license above. Chris@4: */ Chris@4: Chris@4: #include Chris@4: #include Chris@4: #include "portaudio.h" Chris@4: Chris@4: #define NUM_SECONDS (5) Chris@4: #define NUM_LOOPS (4) Chris@4: #define SAMPLE_RATE (44100) Chris@4: #define FRAMES_PER_BUFFER (67) Chris@4: Chris@4: #ifndef M_PI Chris@4: #define M_PI (3.14159265) Chris@4: #endif Chris@4: Chris@4: #define TABLE_SIZE (200) Chris@4: typedef struct Chris@4: { Chris@4: float sine[TABLE_SIZE]; Chris@4: int phase; Chris@4: unsigned long generatedFramesCount; Chris@4: volatile int callbackReturnedPaComplete; Chris@4: volatile int callbackInvokedAfterReturningPaComplete; Chris@4: char message[100]; Chris@4: } Chris@4: TestData; Chris@4: Chris@4: /* Chris@4: This routine will be called by the PortAudio stream when audio is needed. Chris@4: It may be called at interrupt level on some machines so don't do anything Chris@4: that could mess up the system like calling malloc() or free(). Chris@4: */ Chris@4: static int TestCallback( const void *input, void *output, Chris@4: unsigned long frameCount, Chris@4: const PaStreamCallbackTimeInfo* timeInfo, Chris@4: PaStreamCallbackFlags statusFlags, Chris@4: void *userData ) Chris@4: { Chris@4: TestData *data = (TestData*)userData; Chris@4: float *out = (float*)output; Chris@4: unsigned long i; Chris@4: float x; Chris@4: Chris@4: (void) input; /* Prevent unused variable warnings. */ Chris@4: (void) timeInfo; Chris@4: (void) statusFlags; Chris@4: Chris@4: Chris@4: if( data->callbackReturnedPaComplete ) Chris@4: data->callbackInvokedAfterReturningPaComplete = 1; Chris@4: Chris@4: for( i=0; isine[ data->phase++ ]; Chris@4: if( data->phase >= TABLE_SIZE ) Chris@4: data->phase -= TABLE_SIZE; Chris@4: Chris@4: *out++ = x; /* left */ Chris@4: *out++ = x; /* right */ Chris@4: } Chris@4: Chris@4: data->generatedFramesCount += frameCount; Chris@4: if( data->generatedFramesCount >= (NUM_SECONDS * SAMPLE_RATE) ) Chris@4: { Chris@4: data->callbackReturnedPaComplete = 1; Chris@4: return paComplete; Chris@4: } Chris@4: else Chris@4: { Chris@4: return paContinue; Chris@4: } Chris@4: } Chris@4: Chris@4: /* Chris@4: * This routine is called by portaudio when playback is done. Chris@4: */ Chris@4: static void StreamFinished( void* userData ) Chris@4: { Chris@4: TestData *data = (TestData *) userData; Chris@4: printf( "Stream Completed: %s\n", data->message ); Chris@4: } Chris@4: Chris@4: Chris@4: /*----------------------------------------------------------------------------*/ Chris@4: int main(void); Chris@4: int main(void) Chris@4: { Chris@4: PaStreamParameters outputParameters; Chris@4: PaStream *stream; Chris@4: PaError err; Chris@4: TestData data; Chris@4: int i, j; Chris@4: Chris@4: Chris@4: printf( "PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", Chris@4: SAMPLE_RATE, FRAMES_PER_BUFFER ); Chris@4: Chris@4: /* initialise sinusoidal wavetable */ Chris@4: for( i=0; idefaultLowOutputLatency; Chris@4: outputParameters.hostApiSpecificStreamInfo = NULL; Chris@4: Chris@4: err = Pa_OpenStream( Chris@4: &stream, Chris@4: NULL, /* no input */ Chris@4: &outputParameters, Chris@4: SAMPLE_RATE, Chris@4: FRAMES_PER_BUFFER, Chris@4: paClipOff, /* output will be in-range, so no need to clip */ Chris@4: TestCallback, Chris@4: &data ); Chris@4: if( err != paNoError ) goto error; Chris@4: Chris@4: sprintf( data.message, "Loop: XX" ); Chris@4: err = Pa_SetStreamFinishedCallback( stream, &StreamFinished ); Chris@4: if( err != paNoError ) goto error; Chris@4: Chris@4: printf("Repeating test %d times.\n", NUM_LOOPS ); Chris@4: Chris@4: for( i=0; i < NUM_LOOPS; ++i ) Chris@4: { Chris@4: data.phase = 0; Chris@4: data.generatedFramesCount = 0; Chris@4: data.callbackReturnedPaComplete = 0; Chris@4: data.callbackInvokedAfterReturningPaComplete = 0; Chris@4: sprintf( data.message, "Loop: %d", i ); Chris@4: Chris@4: err = Pa_StartStream( stream ); Chris@4: if( err != paNoError ) goto error; Chris@4: Chris@4: printf("Play for %d seconds.\n", NUM_SECONDS ); Chris@4: Chris@4: /* wait for the callback to complete generating NUM_SECONDS of tone */ Chris@4: Chris@4: do Chris@4: { Chris@4: Pa_Sleep( 500 ); Chris@4: } Chris@4: while( !data.callbackReturnedPaComplete ); Chris@4: Chris@4: printf( "Callback returned paComplete.\n" ); Chris@4: printf( "Waiting for buffers to finish playing...\n" ); Chris@4: Chris@4: /* wait for stream to become inactive, Chris@4: or for a timeout of approximately NUM_SECONDS Chris@4: */ Chris@4: Chris@4: j = 0; Chris@4: while( (err = Pa_IsStreamActive( stream )) == 1 && j < NUM_SECONDS * 2 ) Chris@4: { Chris@4: printf(".\n" ); Chris@4: Pa_Sleep( 500 ); Chris@4: ++j; Chris@4: } Chris@4: Chris@4: if( err < 0 ) Chris@4: { Chris@4: goto error; Chris@4: } Chris@4: else if( err == 1 ) Chris@4: { Chris@4: printf( "TEST FAILED: Timed out waiting for buffers to finish playing.\n" ); Chris@4: } Chris@4: else Chris@4: { Chris@4: printf("Buffers finished.\n" ); Chris@4: } Chris@4: Chris@4: if( data.callbackInvokedAfterReturningPaComplete ) Chris@4: { Chris@4: printf( "TEST FAILED: Callback was invoked after returning paComplete.\n" ); Chris@4: } Chris@4: Chris@4: Chris@4: err = Pa_StopStream( stream ); Chris@4: if( err != paNoError ) goto error; Chris@4: Chris@4: printf( "sleeping for 1 second...\n" ); Chris@4: Pa_Sleep( 1000 ); Chris@4: } Chris@4: Chris@4: err = Pa_CloseStream( stream ); Chris@4: if( err != paNoError ) goto error; Chris@4: Chris@4: Pa_Terminate(); Chris@4: printf("Test finished.\n"); Chris@4: Chris@4: return err; Chris@4: error: Chris@4: Pa_Terminate(); Chris@4: fprintf( stderr, "An error occured while using the portaudio stream\n" ); Chris@4: fprintf( stderr, "Error number: %d\n", err ); Chris@4: fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) ); Chris@4: return err; Chris@4: }