001/**
002 * Copyright (c) 2011, The University of Southampton and the individual contributors.
003 * All rights reserved.
004 *
005 * Redistribution and use in source and binary forms, with or without modification,
006 * are permitted provided that the following conditions are met:
007 *
008 *   *  Redistributions of source code must retain the above copyright notice,
009 *      this list of conditions and the following disclaimer.
010 *
011 *   *  Redistributions in binary form must reproduce the above copyright notice,
012 *      this list of conditions and the following disclaimer in the documentation
013 *      and/or other materials provided with the distribution.
014 *
015 *   *  Neither the name of the University of Southampton nor the names of its
016 *      contributors may be used to endorse or promote products derived from this
017 *      software without specific prior written permission.
018 *
019 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
020 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
021 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
022 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
023 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
024 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
025 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
026 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
027 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
028 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
029 */
030/**
031 * 
032 */
033package org.openimaj.audio.samples;
034
035import org.openimaj.audio.AudioFormat;
036import org.openimaj.audio.SampleChunk;
037
038/**
039 * Factory for creating {@link SampleBuffer}s from {@link AudioFormat}s.
040 * 
041 * @author David Dupplaw (dpd@ecs.soton.ac.uk)
042 * @created 23rd November 2011
043 */
044public abstract class SampleBufferFactory {
045        /**
046         * Create a {@link SampleBuffer}.
047         * 
048         * @param af
049         * @param size
050         * @return new {@link SampleBuffer}.
051         */
052        public static SampleBuffer createSampleBuffer(AudioFormat af, int size) {
053                switch (af.getNBits()) {
054                case 8:
055                        return new SampleBuffer8Bit(af, size);
056                case 16:
057                        return new SampleBuffer16Bit(af, size);
058                default:
059                        return null;
060                }
061        }
062
063        /**
064         * Create a {@link SampleBuffer}.
065         * 
066         * @param s
067         * @param af
068         * @return new {@link SampleBuffer}.
069         */
070        public static SampleBuffer createSampleBuffer(SampleChunk s, AudioFormat af) {
071                switch (af.getNBits()) {
072                case 8:
073                        return new SampleBuffer8Bit(s, af);
074                case 16:
075                        return new SampleBuffer16Bit(s, af);
076                default:
077                        return null;
078                }
079        }
080}