FreeCalypso > hg > gsm-codec-lib
diff libtwamr/spreproc.h @ 403:7e0aeab69b10
libtwamr: integrate spreproc.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 06 May 2024 23:11:34 +0000 |
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| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/spreproc.h Mon May 06 23:11:34 2024 +0000 @@ -0,0 +1,51 @@ +/* +******************************************************************************** +* +* 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 : spreproc.h +* Purpose : Subframe preprocessing +* +******************************************************************************** +*/ +#ifndef spreproc_h +#define spreproc_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" +#include "cnst.h" + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ +int subframePreProc( + enum Mode mode, /* i : coder mode */ + const Word16 gamma1[], /* i : spectral exp. factor 1 */ + const Word16 gamma1_12k2[],/* i : spectral exp. factor 1 for EFR */ + const Word16 gamma2[], /* i : spectral exp. factor 2 */ + Word16 *A, /* i : A(z) unquantized for the 4 subframes */ + Word16 *Aq, /* i : A(z) quantized for the 4 subframes */ + Word16 *speech, /* i : speech segment */ + Word16 *mem_err, /* i : pointer to error signal */ + Word16 *mem_w0, /* i : memory of weighting filter */ + Word16 *zero, /* i : pointer to zero vector */ + Word16 ai_zero[], /* o : history of weighted synth. filter */ + Word16 exc[], /* o : long term prediction residual */ + Word16 h1[], /* o : impulse response */ + Word16 xn[], /* o : target vector for pitch search */ + Word16 res2[], /* o : long term prediction residual */ + Word16 error[] /* o : error of LPC synthesis filter */ +); + +#endif