bool Analyzer::Update(float frequency)
{
float *fftmem = (float*)(SDRAM_BASE_ADDR + 15*1048576);
float *resignal = &fftmem[0*MAXFFTSIZE];
float *imsignal = &fftmem[1*MAXFFTSIZE];
float *refiltered = &fftmem[2*MAXFFTSIZE];
float *imfiltered = &fftmem[3*MAXFFTSIZE];
int extralen = max(int(4 * audio.SampleRateFloat() / frequency), 200);
int datalen = (inputRing.used() >> 1);
int mindatalen = min(max(int(11 * audio.SampleRateFloat() / frequency), 1024), MAXFFTSIZE);
if (!resultready) {
if (datalen < mindatalen + extralen) {
enoughdata = false;
}
else {
enoughdata = true;
fftsizelog2 = msb(datalen);
if (fftsizelog2 > MAXFFTSIZELOG2) {
fftsizelog2 = MAXFFTSIZELOG2;
}
fftsize = 1 << fftsizelog2;
SplitInput(resignal, refiltered, signalmean, filteredmean, fftsize);
}
}
return !resultready;
}
int parse_server (struct socket_info *sinfo)
{
struct inputstruct is;
SplitInput(sinfo->buff,&is);
if(isalpha((int)is.command[1])) {
return(handle_server_command(sinfo,&is));
}
return(handle_numeric(sinfo,&is));
return(0);
}
