godot/thirdparty/opus/silk/fixed/autocorr_FIX.c

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#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "SigProc_FIX.h"
#include "celt_lpc.h"

/* Compute autocorrelation */
void silk_autocorr(
    opus_int32                  *results,           /* O    Result (length correlationCount)                            */
    opus_int                    *scale,             /* O    Scaling of the correlation vector                           */
    const opus_int16            *inputData,         /* I    Input data to correlate                                     */
    const opus_int              inputDataSize,      /* I    Length of input                                             */
    const opus_int              correlationCount,   /* I    Number of correlation taps to compute                       */
    int                         arch                /* I    Run-time architecture                                       */
)
{
    opus_int   corrCount;
    corrCount = silk_min_int( inputDataSize, correlationCount );
    *scale = _celt_autocorr(inputData, results, NULL, 0, corrCount-1, inputDataSize, arch);
}