FreeCalypso > hg > gsm-codec-lib
diff libtwamr/a_refl.h @ 253:54f6bc41ed10
libtwamr: integrate a* modules
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Fri, 05 Apr 2024 06:08:15 +0000 |
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| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/a_refl.h Fri Apr 05 06:08:15 2024 +0000 @@ -0,0 +1,54 @@ +/* +******************************************************************************** +* +* 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 : a_refl.h +* Purpose : Convert from direct form coefficients to +* reflection coefficients +* +******************************************************************************** +*/ +#ifndef a_refl_h +#define a_refl_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "typedef.h" + +/* +******************************************************************************** +* DEFINITION OF DATA TYPES +******************************************************************************** +*/ + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ + +/************************************************************************* + * + * FUNCTION: A_Refl() + * + * PURPOSE: Convert from direct form coefficients to reflection coefficients + * + * DESCRIPTION: + * Directform coeffs in Q12 are converted to + * reflection coefficients Q15 + * + *************************************************************************/ +void A_Refl( + Word16 a[], /* i : Directform coefficients */ + Word16 refl[] /* o : Reflection coefficients */ +); + +#endif