gain_quant.c File Reference

#include "main.h"

Macros
#define	OFFSET   ( ( MIN_QGAIN_DB * 128 ) / 6 + 16 * 128 )
#define	SCALE_Q16   ( ( 65536 * ( N_LEVELS_QGAIN - 1 ) ) / ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) )
#define	INV_SCALE_Q16   ( ( 65536 * ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) ) / ( N_LEVELS_QGAIN - 1 ) )

Functions
void	silk_gains_quant (opus_int8 ind[MAX_NB_SUBFR], opus_int32 gain_Q16[MAX_NB_SUBFR], opus_int8 *prev_ind, const opus_int conditional, const opus_int nb_subfr)
void	silk_gains_dequant (opus_int32 gain_Q16[MAX_NB_SUBFR], const opus_int8 ind[MAX_NB_SUBFR], opus_int8 *prev_ind, const opus_int conditional, const opus_int nb_subfr)
opus_int32	silk_gains_ID (const opus_int8 ind[MAX_NB_SUBFR], const opus_int nb_subfr)

Macro Definition Documentation

INV_SCALE_Q16

#define INV_SCALE_Q16   ( ( 65536 * ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) ) / ( N_LEVELS_QGAIN - 1 ) )

OFFSET

#define OFFSET   ( ( MIN_QGAIN_DB * 128 ) / 6 + 16 * 128 )

SCALE_Q16

#define SCALE_Q16   ( ( 65536 * ( N_LEVELS_QGAIN - 1 ) ) / ( ( ( MAX_QGAIN_DB - MIN_QGAIN_DB ) * 128 ) / 6 ) )

Function Documentation

silk_gains_dequant()

void silk_gains_dequant	(	opus_int32	gain_Q16[MAX_NB_SUBFR],
		const opus_int8	ind[MAX_NB_SUBFR],
		opus_int8 *	prev_ind,
		const opus_int	conditional,
		const opus_int	nb_subfr
	)

silk_gains_ID()

opus_int32 silk_gains_ID	(	const opus_int8	ind[MAX_NB_SUBFR],
		const opus_int	nb_subfr
	)

silk_gains_quant()

void silk_gains_quant	(	opus_int8	ind[MAX_NB_SUBFR],
		opus_int32	gain_Q16[MAX_NB_SUBFR],
		opus_int8 *	prev_ind,
		const opus_int	conditional,
		const opus_int	nb_subfr
	)