lpc: Add a function for calculating reflection coefficients from samples

Signed-off-by: Martin Storsjö <martin@martin.st>
2012-10-25 15:33:15 +03:00
parent 39ef66f530
commit 8b25a20efb
2 changed files with 15 additions and 0 deletions
--- a/libavcodec/lpc.h
+++ b/libavcodec/lpc.h
@@ -92,6 +92,9 @@ int ff_lpc_calc_coefs(LPCContext *s,
                      enum FFLPCType lpc_type, int lpc_passes,
                      int omethod, int max_shift, int zero_shift);

+int ff_lpc_calc_ref_coefs(LPCContext *s,
+                          const int32_t *samples, int order, double *ref);
+
 /**
 * Initialize LPCContext.
 */