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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. |
1.8.17