/* * Copyright (c) 2007, 2013, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package com.sun.media.sound; /** * A resampler that uses 0-order (nearest-neighbor) interpolation. * * @author Karl Helgason */ public final class SoftPointResampler extends SoftAbstractResampler { @Override public int getPadding() { return 100; } @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; float ox_end = out_end; if (pitchstep == 0) { while (ix < ix_end && ox < ox_end) { out[ox++] = in[(int) ix]; ix += pitch; } } else { while (ix < ix_end && ox < ox_end) { out[ox++] = in[(int) ix]; ix += pitch; pitch += pitchstep; } } in_offset[0] = ix; out_offset[0] = ox; startpitch[0] = pitch; } }