| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 |
- /*
- ********************************************************************************
- *
- * GSM AMR-NB speech codec R98 Version 7.6.0 December 12, 2001
- * R99 Version 3.3.0
- * REL-4 Version 4.1.0
- *
- ********************************************************************************
- *
- * File : calc_cor.h
- * Purpose : Calculate all correlations for prior the OL LTP
- *
- ********************************************************************************
- */
- #ifndef calc_cor_h
- #define calc_cor_h "$Id $"
-
- /*
- ********************************************************************************
- * INCLUDE FILES
- ********************************************************************************
- */
- #include "typedef.h"
- /*
- ********************************************************************************
- * DECLARATION OF PROTOTYPES
- ********************************************************************************
- */
- /*************************************************************************
- *
- * FUNCTION: comp_corr
- *
- * PURPOSE: Calculate all correlations of scal_sig[] in a given delay
- * range.
- *
- * DESCRIPTION:
- * The correlation is given by
- * cor[t] = <scal_sig[n], scal_sig[n-t]>, t=lag_min,...,lag_max
- * The functions outputs all correlations in the given range
- *
- *************************************************************************/
- void comp_corr (Word16 scal_sig[], /* i : scaled signal. */
- Word16 L_frame, /* i : length of frame to compute pitch */
- Word16 lag_max, /* i : maximum lag */
- Word16 lag_min, /* i : minimum lag */
- Word32 corr[] /* o : correlation of selected lag */
- );
- #endif
|
