FreeCalypso > hg > gsm-codec-lib
diff libtwamr/ol_ltp.h @ 417:f17e42c63058
libtwamr: integrate ol_ltp.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Tue, 07 May 2024 03:21:14 +0000 |
| parents | |
| children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/ol_ltp.h Tue May 07 03:21:14 2024 +0000 @@ -0,0 +1,44 @@ +/* +******************************************************************************** +* +* 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 : ol_ltp.h +* Purpose : Compute the open loop pitch lag. +* +******************************************************************************** +*/ +#ifndef ol_ltp_h +#define ol_ltp_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" +#include "p_ol_wgh.h" + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ +int ol_ltp( + pitchOLWghtState *st, /* i/o : State struct */ + vadState *vadSt, /* i/o : VAD state struct */ + enum Mode mode, /* i : coder mode */ + Word16 wsp[], /* i : signal used to compute the OL pitch, Q0 */ + /* uses signal[-pit_max] to signal[-1] */ + Word16 *T_op, /* o : open loop pitch lag, Q0 */ + Word16 old_lags[], /* i : history with old stored Cl lags */ + Word16 ol_gain_flg[], /* i : OL gain flag */ + Word16 idx, /* i : index */ + Flag dtx /* i : dtx flag; use dtx=1, do not use dtx=0 */ +); +#endif