| /* |
| * Copyright (c) 2008, 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; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.OutputStream; |
| |
| import javax.sound.sampled.AudioFileFormat; |
| import javax.sound.sampled.AudioFormat; |
| import javax.sound.sampled.AudioFormat.Encoding; |
| import javax.sound.sampled.AudioInputStream; |
| import javax.sound.sampled.AudioSystem; |
| import javax.sound.sampled.AudioFileFormat.Type; |
| import javax.sound.sampled.spi.AudioFileWriter; |
| |
| /** |
| * Floating-point encoded (format 3) WAVE file writer. |
| * |
| * @author Karl Helgason |
| */ |
| public final class WaveFloatFileWriter extends AudioFileWriter { |
| |
| public Type[] getAudioFileTypes() { |
| return new Type[] { Type.WAVE }; |
| } |
| |
| public Type[] getAudioFileTypes(AudioInputStream stream) { |
| |
| if (!stream.getFormat().getEncoding().equals(Encoding.PCM_FLOAT)) |
| return new Type[0]; |
| return new Type[] { Type.WAVE }; |
| } |
| |
| private void checkFormat(AudioFileFormat.Type type, AudioInputStream stream) { |
| if (!Type.WAVE.equals(type)) |
| throw new IllegalArgumentException("File type " + type |
| + " not supported."); |
| if (!stream.getFormat().getEncoding().equals(Encoding.PCM_FLOAT)) |
| throw new IllegalArgumentException("File format " |
| + stream.getFormat() + " not supported."); |
| } |
| |
| public void write(AudioInputStream stream, RIFFWriter writer) |
| throws IOException { |
| |
| RIFFWriter fmt_chunk = writer.writeChunk("fmt "); |
| |
| AudioFormat format = stream.getFormat(); |
| fmt_chunk.writeUnsignedShort(3); // WAVE_FORMAT_IEEE_FLOAT |
| fmt_chunk.writeUnsignedShort(format.getChannels()); |
| fmt_chunk.writeUnsignedInt((int) format.getSampleRate()); |
| fmt_chunk.writeUnsignedInt(((int) format.getFrameRate()) |
| * format.getFrameSize()); |
| fmt_chunk.writeUnsignedShort(format.getFrameSize()); |
| fmt_chunk.writeUnsignedShort(format.getSampleSizeInBits()); |
| fmt_chunk.close(); |
| RIFFWriter data_chunk = writer.writeChunk("data"); |
| byte[] buff = new byte[1024]; |
| int len; |
| while ((len = stream.read(buff, 0, buff.length)) != -1) |
| data_chunk.write(buff, 0, len); |
| data_chunk.close(); |
| } |
| |
| private static class NoCloseOutputStream extends OutputStream { |
| final OutputStream out; |
| |
| NoCloseOutputStream(OutputStream out) { |
| this.out = out; |
| } |
| |
| public void write(int b) throws IOException { |
| out.write(b); |
| } |
| |
| public void flush() throws IOException { |
| out.flush(); |
| } |
| |
| public void write(byte[] b, int off, int len) throws IOException { |
| out.write(b, off, len); |
| } |
| |
| public void write(byte[] b) throws IOException { |
| out.write(b); |
| } |
| } |
| |
| private AudioInputStream toLittleEndian(AudioInputStream ais) { |
| AudioFormat format = ais.getFormat(); |
| AudioFormat targetFormat = new AudioFormat(format.getEncoding(), format |
| .getSampleRate(), format.getSampleSizeInBits(), format |
| .getChannels(), format.getFrameSize(), format.getFrameRate(), |
| false); |
| return AudioSystem.getAudioInputStream(targetFormat, ais); |
| } |
| |
| public int write(AudioInputStream stream, Type fileType, OutputStream out) |
| throws IOException { |
| |
| checkFormat(fileType, stream); |
| if (stream.getFormat().isBigEndian()) |
| stream = toLittleEndian(stream); |
| RIFFWriter writer = new RIFFWriter(new NoCloseOutputStream(out), "WAVE"); |
| write(stream, writer); |
| int fpointer = (int) writer.getFilePointer(); |
| writer.close(); |
| return fpointer; |
| } |
| |
| public int write(AudioInputStream stream, Type fileType, File out) |
| throws IOException { |
| checkFormat(fileType, stream); |
| if (stream.getFormat().isBigEndian()) |
| stream = toLittleEndian(stream); |
| RIFFWriter writer = new RIFFWriter(out, "WAVE"); |
| write(stream, writer); |
| int fpointer = (int) writer.getFilePointer(); |
| writer.close(); |
| return fpointer; |
| } |
| |
| } |