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package com.sun.media.sound;

A resampler that uses first-order (linear) interpolation.
Author:Karl Helgason
/** * A resampler that uses first-order (linear) interpolation. * * @author Karl Helgason */
public final class SoftLinearResampler extends SoftAbstractResampler { @Override public int getPadding() { return 2; } @Override public void interpolate(float[] in, float[] in_offset, float in_end, float[] startpitch, float pitchstep, float[] out, int[] out_offset, int out_end) { float pitch = startpitch[0]; float ix = in_offset[0]; int ox = out_offset[0]; float ix_end = in_end; int ox_end = out_end; if (pitchstep == 0f) { while (ix < ix_end && ox < ox_end) { int iix = (int) ix; float fix = ix - iix; float i = in[iix]; out[ox++] = i + (in[iix + 1] - i) * fix; ix += pitch; } } else { while (ix < ix_end && ox < ox_end) { int iix = (int) ix; float fix = ix - iix; float i = in[iix]; out[ox++] = i + (in[iix + 1] - i) * fix; ix += pitch; pitch += pitchstep; } } in_offset[0] = ix; out_offset[0] = ox; startpitch[0] = pitch; } }