FFmpeg
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#include <lpc.h>
Data Fields | |
int | blocksize |
int | max_order |
enum FFLPCType | lpc_type |
double * | windowed_buffer |
double * | windowed_samples |
void(* | lpc_apply_welch_window )(const int32_t *data, int len, double *w_data) |
Apply a Welch window to an array of input samples. More... | |
void(* | lpc_compute_autocorr )(const double *data, int len, int lag, double *autoc) |
Perform autocorrelation on input samples with delay of 0 to lag. More... | |
LLSModel | lls_models [2] |
Perform autocorrelation on input samples with delay of 0 to lag.
data | input samples. constraints: no alignment needed, but must have at least lag*sizeof(double) valid bytes preceding it, and size must be at least (len+1)*sizeof(double) if data is 16-byte aligned or (len+2)*sizeof(double) if data is unaligned. |
len | number of input samples to process |
lag | maximum delay to calculate |
autoc | output autocorrelation coefficients. constraints: array size must be at least lag+1. |