FreeCalypso > hg > gsm-codec-lib
diff libtwamr/q_gain_c.h @ 368:3a25bdfad0d8
libtwamr: integrate q_gain_c.c
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Mon, 06 May 2024 03:18:47 +0000 |
| parents | |
| children |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/libtwamr/q_gain_c.h Mon May 06 03:18:47 2024 +0000 @@ -0,0 +1,52 @@ +/* +******************************************************************************** +* +* 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_gain_c.h +* Purpose : Scalar quantization of the innovative +* : codebook gain. +* +******************************************************************************** +*/ +#ifndef q_gain_c_h +#define q_gain_c_h "$Id $" + +/* +******************************************************************************** +* INCLUDE FILES +******************************************************************************** +*/ +#include "tw_amr.h" +#include "typedef.h" +#include "gc_pred.h" + +/* +******************************************************************************** +* DECLARATION OF PROTOTYPES +******************************************************************************** +*/ + +/*--------------------------------------------------------------------------* + * Function q_gain_code() * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * + * Scalar quantization of the innovative codebook gain. * + * * + * gc_pred() is used for MA prediction of the innovation energy * + *--------------------------------------------------------------------------*/ +Word16 q_gain_code ( /* o : quantization index, Q0 */ + enum Mode mode, /* i : AMR mode */ + Word16 exp_gcode0, /* i : predicted CB gain (exponent), Q0 */ + Word16 frac_gcode0, /* i : predicted CB gain (fraction), Q15 */ + Word16 *gain, /* i/o: quantized fixed codebook gain, Q1 */ + Word16 *qua_ener_MR122, /* o : quantized energy error, Q10 */ + /* (for MR122 MA predictor update) */ + Word16 *qua_ener /* o : quantized energy error, Q10 */ + /* (for other MA predictor update) */ +); + +#endif