/* lee un entero */
int
getint(const char mensaje[], ...)
{
#if 1
int n, salir = 0;
va_list ap;
do
{
va_start(ap, mensaje);
vprintf(mensaje, ap);
va_end(ap);
if ( scanf("%d",&n) != 1)
BORRA_BUFFER;
else
salir = finalBuffer();
if ( !salir)
printf("Invalid command\n");
} while (! salir);
return n;
#else
char buf[100];
printf("%s: ", mensaje);
fflush(stdout);
// fgets(buf, sizeof buf, stdout);
gets(buf);
return atoi(buf);
#endif
}
void Upsampler::test()
{
//
// Make some audio data
//
int sampleRate = 48000;
FrequencySweepAudioSource generator;
AudioSampleBuffer sourceBuffer(1, sampleRate * 2);
AudioSourceChannelInfo asi(&sourceBuffer, 0, sourceBuffer.getNumSamples());
generator.prepareToPlay(sourceBuffer.getNumSamples(), sampleRate);
generator.getNextAudioBlock(asi);
generator.releaseResources();
//
// Create the upsampler
//
int const upsampleFactor = 4;
Upsampler upsampler(sampleRate, sampleRate * upsampleFactor, 2.0);
HeapBlock<double> upsamplerInputBuffer, upsamplerOutputBuffer;
int upsamplerOutputBufferSamples = sourceBuffer.getNumSamples() * upsampleFactor * 2;
upsamplerInputBuffer.allocate(sourceBuffer.getNumSamples(), true);
upsamplerOutputBuffer.allocate(upsamplerOutputBufferSamples, true);
//
// Convert data to doubles
//
const float* source = sourceBuffer.getReadPointer(0);
for (int i = 0; i < sourceBuffer.getNumSamples(); ++i)
{
upsamplerInputBuffer[i] = source[i];
}
//
// Upsample
//
int upsampledCount = upsampler.upsample( upsamplerInputBuffer,
upsamplerOutputBuffer,
sourceBuffer.getNumSamples(),
upsamplerOutputBufferSamples);
//
// Convert upsampled data to float
//
AudioSampleBuffer finalBuffer(1, upsamplerOutputBufferSamples);
float *destination = finalBuffer.getWritePointer(0);
for (int i = 0; i < upsampledCount; ++i)
{
destination[i] = (float)upsamplerOutputBuffer[i];
}
WriteWaveFile("upsample.wav", sampleRate * upsampleFactor, &finalBuffer, upsamplerOutputBufferSamples);
}
/* lee un double */
double
getdouble(const char mensaje[], ...)
{
double n;
int salir = 0;
va_list ap;
do
{
va_start(ap, mensaje);
vprintf(mensaje, ap);
va_end(ap);
if ( scanf("%lg",&n) != 1)
BORRA_BUFFER;
else
salir = finalBuffer();
if ( !salir)
printf("\nIncorrect data\n");
} while (! salir);
return n;
}
