FreeCalypso > hg > gsm-codec-lib
view libtwamr/p_ol_wgh.h @ 464:fa0652115168
libtwamr: add amr_dhf_subst_efr2()
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 12 May 2024 21:36:26 +0000 |
parents | 48c7f8e8c9af |
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 : p_ol_wgh.h * Purpose : Compute the open loop pitch lag with weighting. * ******************************************************************************** */ #ifndef p_ol_wgh_h #define p_ol_wgh_h "$Id $" /* ******************************************************************************** * INCLUDE FILES ******************************************************************************** */ #include "tw_amr.h" #include "typedef.h" #include "vad.h" /* ******************************************************************************** * DEFINITION OF DATA TYPES ******************************************************************************** */ /* state variable */ typedef struct { Word16 old_T0_med; Word16 ada_w; Word16 wght_flg; } pitchOLWghtState; /* ******************************************************************************** * DECLARATION OF PROTOTYPES ******************************************************************************** */ void p_ol_wgh_reset (pitchOLWghtState *st); /* reset of pre processing state (i.e. set state memory to zero) returns 0 on success */ Word16 Pitch_ol_wgh ( /* o : open loop pitch lag */ pitchOLWghtState *st, /* i/o : State struct */ vadState *vadSt, /* i/o : VAD state struct */ Word16 signal[], /* i : signal used to compute the open loop pitch */ /* signal[-pit_max] to signal[-1] should be known */ Word16 pit_min, /* i : minimum pitch lag */ Word16 pit_max, /* i : maximum pitch lag */ Word16 L_frame, /* i : length of frame to compute pitch */ 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