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Report HostAPI errors in paex_write_sine.c to aid debugging.

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This commit is contained in:
philburk 2012-09-01 19:37:10 +00:00
commit b9d82e4d34
1 changed files with 10 additions and 3 deletions
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13
examples/paex_write_sine.c
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@ -71,7 +71,6 @@ int main(void)
int right_inc = 3; /* higher pitch so we can distinguish left and right. */
int i, j, k;
int bufferCount;
printf("PortAudio Test: output sine wave. SR = %d, BufSize = %d\n", SAMPLE_RATE, FRAMES_PER_BUFFER);
@ -92,7 +91,7 @@ int main(void)
}
outputParameters.channelCount = 2; /* stereo output */
outputParameters.sampleFormat = paFloat32; /* 32 bit floating point output */
outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
outputParameters.suggestedLatency = 0.050; // Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency;
outputParameters.hostApiSpecificStreamInfo = NULL;
err = Pa_OpenStream(
@ -150,10 +149,18 @@ int main(void)
printf("Test finished.\n");
return err;
error:
Pa_Terminate();
fprintf( stderr, "An error occured while using the portaudio stream\n" );
fprintf( stderr, "Error number: %d\n", err );
fprintf( stderr, "Error message: %s\n", Pa_GetErrorText( err ) );
// Print more information about the error.
if( err == paUnanticipatedHostError )
{
const PaHostErrorInfo *hostErrorInfo = Pa_GetLastHostErrorInfo();
fprintf( stderr, "Host API error = #%d, hostApiType = %d\n", hostErrorInfo->errorCode, hostErrorInfo->hostApiType );
fprintf( stderr, "Host API error = %s\n", hostErrorInfo->errorText );
}
Pa_Terminate();
return err;
}