net.java.sip.communicator.impl.neomedia.codec.audio.silk
Class Silk_gain_quant

java.lang.Object
  net.java.sip.communicator.impl.neomedia.codec.audio.silk.Silk_gain_quant

public class Silk_gain_quant
extends Object

Author:

Jing Dai, Dingxin Xu

Field Summary

(package private) static int	INV_SCALE_Q16
(package private) static int	OFFSET
(package private) static int	SCALE_Q16

Constructor Summary

Silk_gain_quant()

Method Summary

(package private) static void	SKP_Silk_gains_dequant(int[] gain_Q16, int[] ind, int[] prev_ind, int conditional) Gains scalar dequantization, uniform on log scale.
(package private) static void	SKP_Silk_gains_quant(int[] ind, int[] gain_Q16, int[] prev_ind, int conditional) Gain scalar quantization with hysteresis, uniform on log scale.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

OFFSET

static final int OFFSET

See Also:

Constant Field Values

SCALE_Q16

static final int SCALE_Q16

See Also:

Constant Field Values

INV_SCALE_Q16

static final int INV_SCALE_Q16

See Also:

Constant Field Values

Constructor Detail

Silk_gain_quant

public Silk_gain_quant()

Method Detail

SKP_Silk_gains_quant

static void SKP_Silk_gains_quant(int[] ind,
                                 int[] gain_Q16,
                                 int[] prev_ind,
                                 int conditional)

Gain scalar quantization with hysteresis, uniform on log scale.

Parameters:

ind - gain indices

gain_Q16 - gains (quantized out)

prev_ind - last index in previous frame

conditional - first gain is delta coded if 1

SKP_Silk_gains_dequant

static void SKP_Silk_gains_dequant(int[] gain_Q16,
                                   int[] ind,
                                   int[] prev_ind,
                                   int conditional)

Gains scalar dequantization, uniform on log scale.

Parameters:

gain_Q16 - quantized gains.

ind - gain indices.

prev_ind - last index in previous frame.

conditional - first gain is delta coded if 1.