FreeCalypso > hg > gsm-codec-lib
view libtwamr/calc_cor.h @ 521:68fe269b4316
gsmx-to-tw5a: actually write to the output file
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 19 Sep 2024 02:21:08 +0000 |
| parents | 67c31802392b |
| children |
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/* ******************************************************************************** * * 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