FreeCalypso > hg > gsm-codec-lib
diff libtwamr/q_plsf.h @ 371:4a8cabac281e
libtwamr: integrate q_plsf.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 06 May 2024 03:45:04 +0000 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/q_plsf.h Mon May 06 03:45:04 2024 +0000 @@ -0,0 +1,65 @@ +/* +******************************************************************************** +* +* 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 : q_plsf.h +* Purpose : common include file for LSF vector/matrix quanti- +* sation modules (q_plsf_3.c/q_plsf_5.c) +* +******************************************************************************** +*/ +#ifndef q_plsf_h +#define q_plsf_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" +#include "cnst.h" +/* +******************************************************************************** +* DEFINITION OF DATA TYPES +******************************************************************************** +*/ +typedef struct { + Word16 past_rq[M]; /* Past quantized prediction error, Q15 */ +} Q_plsfState; + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ + +void Q_plsf_reset (Q_plsfState *st); +/* reset of state (i.e. set state memory to zero) + returns 0 on success + */ + +void Q_plsf_3( + Q_plsfState *st, /* i/o: state struct */ + enum Mode mode, /* i : coder mode */ + Word16 *lsp1, /* i : 1st LSP vector Q15 */ + Word16 *lsp1_q, /* o : quantized 1st LSP vector Q15 */ + Word16 *indice, /* o : quantization indices of 3 vectors Q0 */ + Word16 *pred_init_i /* o : init index for MA prediction in DTX mode */ +); + +void Q_plsf_5 ( + Q_plsfState *st, + Word16 *lsp1, /* i : 1st LSP vector, Q15 */ + Word16 *lsp2, /* i : 2nd LSP vector, Q15 */ + Word16 *lsp1_q, /* o : quantized 1st LSP vector, Q15 */ + Word16 *lsp2_q, /* o : quantized 2nd LSP vector, Q15 */ + Word16 *indice /* o : quantization indices of 5 matrices, Q0 */ +); + +#endif