FreeCalypso > hg > gsm-codec-lib
diff libtwamr/cor_h.h @ 315:5401aaf7acb0
libtwamr: integrate cor_h.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 18 Apr 2024 17:39:10 +0000 |
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| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/cor_h.h Thu Apr 18 17:39:10 2024 +0000 @@ -0,0 +1,58 @@ +/* +***************************************************************************** +* +* 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 : cor_h.h +* Purpose : correlation functions for codebook search +* +***************************************************************************** +*/ +/* +***************************************************************************** +* MODULE INCLUDE FILE AND VERSION ID +***************************************************************************** +*/ +#ifndef cor_h_h +#define cor_h_h "@(#)$Id $" +/* +***************************************************************************** +* INCLUDE FILES +***************************************************************************** +*/ +#include "typedef.h" +#include "cnst.h" + +/* +***************************************************************************** +* DECLARATION OF PROTOTYPES +***************************************************************************** +*/ +void cor_h_x ( + Word16 h[], /* (i) : impulse response of weighted synthesis filter */ + Word16 x[], /* (i) : target */ + Word16 dn[], /* (o) : correlation between target and h[] */ + Word16 sf /* (i) : scaling factor: 2 for 12.2, 1 for 7.4 */ +); + +void cor_h_x2 ( + Word16 h[], /* (i) : impulse response of weighted synthesis filter */ + Word16 x[], /* (i) : target */ + Word16 dn[], /* (o) : correlation between target and h[] */ + Word16 sf, /* (i) : scaling factor: 2 for 12.2, 1 for 7.4 */ + Word16 nb_track,/* (i) : the number of ACB tracks */ + Word16 step /* (i) : step size from one pulse position to the next + in one track */ +); + +void cor_h ( + Word16 h[], /* (i) : impulse response of weighted synthesis filter */ + Word16 sign[], /* (i) : sign of d[n] */ + Word16 rr[][L_CODE] /* (o) : matrix of autocorrelation */ +); + +#endif