diff options
Diffstat (limited to 'libavcodec/lpc.c')
-rw-r--r-- | libavcodec/lpc.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/libavcodec/lpc.c b/libavcodec/lpc.c index 126dbc1266..2093e7e802 100644 --- a/libavcodec/lpc.c +++ b/libavcodec/lpc.c @@ -148,6 +148,18 @@ static int estimate_best_order(double *ref, int min_order, int max_order) return est; } +int ff_lpc_calc_ref_coefs(LPCContext *s, + const int32_t *samples, int order, double *ref) +{ + double autoc[MAX_LPC_ORDER + 1]; + + s->lpc_apply_welch_window(samples, s->blocksize, s->windowed_samples); + s->lpc_compute_autocorr(s->windowed_samples, s->blocksize, order, autoc); + compute_ref_coefs(autoc, order, ref, NULL); + + return order; +} + /** * Calculate LPC coefficients for multiple orders * |