net.java.sip.communicator.impl.media.codec.audio.g729
Class PredLt3

java.lang.Object
  net.java.sip.communicator.impl.media.codec.audio.g729.PredLt3

 class PredLt3
extends Object

Author:

Lubomir Marinov (translation of ITU-T C source code to Java)

Constructor Summary

PredLt3()

Method Summary

(package private) static void

pred_lt_3(float[] exc, int exc_offset, int t0, int frac, int l_subfr) Compute the result of long term prediction with fractional interpolation of resolution 1/3.

Methods inherited from class java.lang.Object

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

Constructor Detail

PredLt3

PredLt3()

Method Detail

pred_lt_3

static void pred_lt_3(float[] exc,
                      int exc_offset,
                      int t0,
                      int frac,
                      int l_subfr)

Compute the result of long term prediction with fractional interpolation of resolution 1/3. On return exc[0..L_subfr-1] contains the interpolated signal (adaptive codebook excitation)

Parameters:

exc - in/out: excitation vector, exc[0:l_sub-1] = out

exc_offset - input: excitation vector offset

t0 - input : pitch lag

frac - input : Fraction of pitch lag (-1, 0, 1) / 3

l_subfr - input : length of subframe.