From: David ‘Bombe’ Roden Date: Sun, 26 May 2013 15:51:34 +0000 (+0200) Subject: Add internal audio processing filter. X-Git-Url: https://git.pterodactylus.net/?a=commitdiff_plain;h=bd7f4af5135a4b67164e12d31bd0904c673ab2cc;p=sonitus.git Add internal audio processing filter. --- diff --git a/src/main/java/net/pterodactylus/sonitus/data/filter/AudioProcessingFilter.java b/src/main/java/net/pterodactylus/sonitus/data/filter/AudioProcessingFilter.java new file mode 100644 index 0000000..5539eea --- /dev/null +++ b/src/main/java/net/pterodactylus/sonitus/data/filter/AudioProcessingFilter.java @@ -0,0 +1,63 @@ +/* + * Sonitus - AudioProcessingFilter.java - Copyright © 2013 David Roden + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program 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 for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +package net.pterodactylus.sonitus.data.filter; + +import java.io.IOException; +import java.io.OutputStream; + +import net.pterodactylus.sonitus.data.Filter; +import net.pterodactylus.sonitus.io.ProcessingOutputStream; + +/** + * {@link Filter} implementation that can process audio samples internally. + * + * @author David ‘Bombe’ Roden + */ +public abstract class AudioProcessingFilter extends DummyFilter { + + // + // DUMMYFILTER METHODS + // + + @Override + protected OutputStream createOutputStream() throws IOException { + OutputStream originalOutputStream = super.createOutputStream(); + ProcessingOutputStream processingOutputStream = new ProcessingOutputStream(originalOutputStream, metadata().channels()) { + + @Override + protected int[] processSamples(int[] samples) { + return AudioProcessingFilter.this.processSamples(samples); + } + }; + return processingOutputStream; + } + + // + // SUBCLASS METHODS + // + + /** + * Called to process the given of channels for a single sample. + * + * @param samples + * The channel values of the sample + * @return The processed channel values + */ + protected abstract int[] processSamples(int[] samples); + +}