FreeCalypso > hg > gsm-codec-lib
view libtwamr/c8_31pf.h @ 333:f4a5545ea8b2
libtwamr: integrate d3_14pf.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 18 Apr 2024 22:23:42 +0000 |
| parents | dfd5f159574b |
| 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 : c8_31pf.h * Purpose : Searches a 31 bit algebraic codebook containing * : 8 pulses in a frame of 40 samples. * ******************************************************************************** */ #ifndef c8_31pf_h #define c8_31pf_h "$Id $" /* ******************************************************************************** * INCLUDE FILES ******************************************************************************** */ #include "typedef.h" /* ******************************************************************************** * DEFINITION OF DATA TYPES ******************************************************************************** */ /* ******************************************************************************** * DECLARATION OF PROTOTYPES ******************************************************************************** */ void code_8i40_31bits ( Word16 x[], /* i : target vector */ Word16 cn[], /* i : residual after long term prediction */ Word16 h[], /* i : impulse response of weighted synthesis filter */ Word16 cod[], /* o : algebraic (fixed) codebook excitation */ Word16 y[], /* o : filtered fixed codebook excitation */ Word16 indx[] /* o : 7 Word16, index of 8 pulses (signs+positions) */ ); #endif