| /* |
| * Copyright (c) 1999, 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.InputStream; |
| import java.io.OutputStream; |
| import java.io.IOException; |
| |
| import java.io.BufferedOutputStream; |
| import java.io.DataOutputStream; |
| import java.io.FileOutputStream; |
| import java.io.ByteArrayInputStream; |
| import java.io.ByteArrayOutputStream; |
| import java.io.RandomAccessFile; |
| import java.io.SequenceInputStream; |
| |
| import javax.sound.sampled.AudioFileFormat; |
| import javax.sound.sampled.AudioInputStream; |
| import javax.sound.sampled.AudioFormat; |
| import javax.sound.sampled.AudioSystem; |
| |
| //$$fb this class is buggy. Should be replaced in future. |
| |
| /** |
| * AIFF file writer. |
| * |
| * @author Jan Borgersen |
| */ |
| public final class AiffFileWriter extends SunFileWriter { |
| |
| /** |
| * Constructs a new AiffFileWriter object. |
| */ |
| public AiffFileWriter() { |
| super(new AudioFileFormat.Type[]{AudioFileFormat.Type.AIFF}); |
| } |
| |
| |
| // METHODS TO IMPLEMENT AudioFileWriter |
| |
| public AudioFileFormat.Type[] getAudioFileTypes(AudioInputStream stream) { |
| |
| AudioFileFormat.Type[] filetypes = new AudioFileFormat.Type[types.length]; |
| System.arraycopy(types, 0, filetypes, 0, types.length); |
| |
| // make sure we can write this stream |
| AudioFormat format = stream.getFormat(); |
| AudioFormat.Encoding encoding = format.getEncoding(); |
| |
| if( (AudioFormat.Encoding.ALAW.equals(encoding)) || |
| (AudioFormat.Encoding.ULAW.equals(encoding)) || |
| (AudioFormat.Encoding.PCM_SIGNED.equals(encoding)) || |
| (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) ) { |
| |
| return filetypes; |
| } |
| |
| return new AudioFileFormat.Type[0]; |
| } |
| |
| |
| public int write(AudioInputStream stream, AudioFileFormat.Type fileType, OutputStream out) throws IOException { |
| |
| //$$fb the following check must come first ! Otherwise |
| // the next frame length check may throw an IOException and |
| // interrupt iterating File Writers. (see bug 4351296) |
| |
| // throws IllegalArgumentException if not supported |
| AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream); |
| |
| // we must know the total data length to calculate the file length |
| if( stream.getFrameLength() == AudioSystem.NOT_SPECIFIED ) { |
| throw new IOException("stream length not specified"); |
| } |
| |
| int bytesWritten = writeAiffFile(stream, aiffFileFormat, out); |
| return bytesWritten; |
| } |
| |
| |
| public int write(AudioInputStream stream, AudioFileFormat.Type fileType, File out) throws IOException { |
| |
| // throws IllegalArgumentException if not supported |
| AiffFileFormat aiffFileFormat = (AiffFileFormat)getAudioFileFormat(fileType, stream); |
| |
| // first write the file without worrying about length fields |
| FileOutputStream fos = new FileOutputStream( out ); // throws IOException |
| BufferedOutputStream bos = new BufferedOutputStream( fos, bisBufferSize ); |
| int bytesWritten = writeAiffFile(stream, aiffFileFormat, bos ); |
| bos.close(); |
| |
| // now, if length fields were not specified, calculate them, |
| // open as a random access file, write the appropriate fields, |
| // close again.... |
| if( aiffFileFormat.getByteLength()== AudioSystem.NOT_SPECIFIED ) { |
| |
| // $$kk: 10.22.99: jan: please either implement this or throw an exception! |
| // $$fb: 2001-07-13: done. Fixes Bug 4479981 |
| int ssndBlockSize = (aiffFileFormat.getFormat().getChannels() * aiffFileFormat.getFormat().getSampleSizeInBits()); |
| |
| int aiffLength=bytesWritten; |
| int ssndChunkSize=aiffLength-aiffFileFormat.getHeaderSize()+16; |
| long dataSize=ssndChunkSize-16; |
| int numFrames=(int) (dataSize*8/ssndBlockSize); |
| |
| RandomAccessFile raf=new RandomAccessFile(out, "rw"); |
| // skip FORM magic |
| raf.skipBytes(4); |
| raf.writeInt(aiffLength-8); |
| // skip aiff2 magic, fver chunk, comm magic, comm size, channel count, |
| raf.skipBytes(4+aiffFileFormat.getFverChunkSize()+4+4+2); |
| // write frame count |
| raf.writeInt(numFrames); |
| // skip sample size, samplerate, SSND magic |
| raf.skipBytes(2+10+4); |
| raf.writeInt(ssndChunkSize-8); |
| // that's all |
| raf.close(); |
| } |
| |
| return bytesWritten; |
| } |
| |
| |
| // ----------------------------------------------------------------------- |
| |
| /** |
| * Returns the AudioFileFormat describing the file that will be written from this AudioInputStream. |
| * Throws IllegalArgumentException if not supported. |
| */ |
| private AudioFileFormat getAudioFileFormat(AudioFileFormat.Type type, AudioInputStream stream) { |
| |
| AudioFormat format = null; |
| AiffFileFormat fileFormat = null; |
| AudioFormat.Encoding encoding = AudioFormat.Encoding.PCM_SIGNED; |
| |
| AudioFormat streamFormat = stream.getFormat(); |
| AudioFormat.Encoding streamEncoding = streamFormat.getEncoding(); |
| |
| |
| float sampleRate; |
| int sampleSizeInBits; |
| int channels; |
| int frameSize; |
| float frameRate; |
| int fileSize; |
| boolean convert8to16 = false; |
| |
| if( !types[0].equals(type) ) { |
| throw new IllegalArgumentException("File type " + type + " not supported."); |
| } |
| |
| if( (AudioFormat.Encoding.ALAW.equals(streamEncoding)) || |
| (AudioFormat.Encoding.ULAW.equals(streamEncoding)) ) { |
| |
| if( streamFormat.getSampleSizeInBits()==8 ) { |
| |
| encoding = AudioFormat.Encoding.PCM_SIGNED; |
| sampleSizeInBits=16; |
| convert8to16 = true; |
| |
| } else { |
| |
| // can't convert non-8-bit ALAW,ULAW |
| throw new IllegalArgumentException("Encoding " + streamEncoding + " supported only for 8-bit data."); |
| } |
| } else if ( streamFormat.getSampleSizeInBits()==8 ) { |
| |
| encoding = AudioFormat.Encoding.PCM_UNSIGNED; |
| sampleSizeInBits=8; |
| |
| } else { |
| |
| encoding = AudioFormat.Encoding.PCM_SIGNED; |
| sampleSizeInBits=streamFormat.getSampleSizeInBits(); |
| } |
| |
| |
| format = new AudioFormat( encoding, |
| streamFormat.getSampleRate(), |
| sampleSizeInBits, |
| streamFormat.getChannels(), |
| streamFormat.getFrameSize(), |
| streamFormat.getFrameRate(), |
| true); // AIFF is big endian |
| |
| |
| if( stream.getFrameLength()!=AudioSystem.NOT_SPECIFIED ) { |
| if( convert8to16 ) { |
| fileSize = (int)stream.getFrameLength()*streamFormat.getFrameSize()*2 + AiffFileFormat.AIFF_HEADERSIZE; |
| } else { |
| fileSize = (int)stream.getFrameLength()*streamFormat.getFrameSize() + AiffFileFormat.AIFF_HEADERSIZE; |
| } |
| } else { |
| fileSize = AudioSystem.NOT_SPECIFIED; |
| } |
| |
| fileFormat = new AiffFileFormat( AudioFileFormat.Type.AIFF, |
| fileSize, |
| format, |
| (int)stream.getFrameLength() ); |
| |
| return fileFormat; |
| } |
| |
| |
| private int writeAiffFile(InputStream in, AiffFileFormat aiffFileFormat, OutputStream out) throws IOException { |
| |
| int bytesRead = 0; |
| int bytesWritten = 0; |
| InputStream fileStream = getFileStream(aiffFileFormat, in); |
| byte buffer[] = new byte[bisBufferSize]; |
| int maxLength = aiffFileFormat.getByteLength(); |
| |
| while( (bytesRead = fileStream.read( buffer )) >= 0 ) { |
| if (maxLength>0) { |
| if( bytesRead < maxLength ) { |
| out.write( buffer, 0, (int)bytesRead ); |
| bytesWritten += bytesRead; |
| maxLength -= bytesRead; |
| } else { |
| out.write( buffer, 0, (int)maxLength ); |
| bytesWritten += maxLength; |
| maxLength = 0; |
| break; |
| } |
| |
| } else { |
| out.write( buffer, 0, (int)bytesRead ); |
| bytesWritten += bytesRead; |
| } |
| } |
| |
| return bytesWritten; |
| } |
| |
| private InputStream getFileStream(AiffFileFormat aiffFileFormat, InputStream audioStream) throws IOException { |
| |
| // private method ... assumes aiffFileFormat is a supported file format |
| |
| AudioFormat format = aiffFileFormat.getFormat(); |
| AudioFormat streamFormat = null; |
| AudioFormat.Encoding encoding = null; |
| |
| //$$fb a little bit nicer handling of constants |
| |
| //int headerSize = 54; |
| int headerSize = aiffFileFormat.getHeaderSize(); |
| |
| //int fverChunkSize = 0; |
| int fverChunkSize = aiffFileFormat.getFverChunkSize(); |
| //int commChunkSize = 26; |
| int commChunkSize = aiffFileFormat.getCommChunkSize(); |
| int aiffLength = -1; |
| int ssndChunkSize = -1; |
| //int ssndOffset = headerSize - 16; |
| int ssndOffset = aiffFileFormat.getSsndChunkOffset(); |
| short channels = (short) format.getChannels(); |
| short sampleSize = (short) format.getSampleSizeInBits(); |
| int ssndBlockSize = (channels * sampleSize); |
| int numFrames = aiffFileFormat.getFrameLength(); |
| long dataSize = -1; |
| if( numFrames != AudioSystem.NOT_SPECIFIED) { |
| dataSize = (long) numFrames * ssndBlockSize / 8; |
| ssndChunkSize = (int)dataSize + 16; |
| aiffLength = (int)dataSize+headerSize; |
| } |
| float sampleFramesPerSecond = format.getSampleRate(); |
| int compCode = AiffFileFormat.AIFC_PCM; |
| |
| byte header[] = null; |
| ByteArrayInputStream headerStream = null; |
| ByteArrayOutputStream baos = null; |
| DataOutputStream dos = null; |
| SequenceInputStream aiffStream = null; |
| InputStream codedAudioStream = audioStream; |
| |
| // if we need to do any format conversion, do it here.... |
| |
| if( audioStream instanceof AudioInputStream ) { |
| |
| streamFormat = ((AudioInputStream)audioStream).getFormat(); |
| encoding = streamFormat.getEncoding(); |
| |
| |
| // $$jb: Note that AIFF samples are ALWAYS signed |
| if( (AudioFormat.Encoding.PCM_UNSIGNED.equals(encoding)) || |
| ( (AudioFormat.Encoding.PCM_SIGNED.equals(encoding)) && !streamFormat.isBigEndian() ) ) { |
| |
| // plug in the transcoder to convert to PCM_SIGNED. big endian |
| codedAudioStream = AudioSystem.getAudioInputStream( new AudioFormat ( |
| AudioFormat.Encoding.PCM_SIGNED, |
| streamFormat.getSampleRate(), |
| streamFormat.getSampleSizeInBits(), |
| streamFormat.getChannels(), |
| streamFormat.getFrameSize(), |
| streamFormat.getFrameRate(), |
| true ), |
| (AudioInputStream)audioStream ); |
| |
| } else if( (AudioFormat.Encoding.ULAW.equals(encoding)) || |
| (AudioFormat.Encoding.ALAW.equals(encoding)) ) { |
| |
| if( streamFormat.getSampleSizeInBits() != 8 ) { |
| throw new IllegalArgumentException("unsupported encoding"); |
| } |
| |
| //$$fb 2001-07-13: this is probably not what we want: |
| // writing PCM when ULAW/ALAW is requested. AIFC is able to write ULAW ! |
| |
| // plug in the transcoder to convert to PCM_SIGNED_BIG_ENDIAN |
| codedAudioStream = AudioSystem.getAudioInputStream( new AudioFormat ( |
| AudioFormat.Encoding.PCM_SIGNED, |
| streamFormat.getSampleRate(), |
| streamFormat.getSampleSizeInBits() * 2, |
| streamFormat.getChannels(), |
| streamFormat.getFrameSize() * 2, |
| streamFormat.getFrameRate(), |
| true ), |
| (AudioInputStream)audioStream ); |
| } |
| } |
| |
| |
| // Now create an AIFF stream header... |
| baos = new ByteArrayOutputStream(); |
| dos = new DataOutputStream(baos); |
| |
| // Write the outer FORM chunk |
| dos.writeInt(AiffFileFormat.AIFF_MAGIC); |
| dos.writeInt( (aiffLength-8) ); |
| dos.writeInt(AiffFileFormat.AIFF_MAGIC2); |
| |
| // Write a FVER chunk - only for AIFC |
| //dos.writeInt(FVER_MAGIC); |
| //dos.writeInt( (fverChunkSize-8) ); |
| //dos.writeInt(FVER_TIMESTAMP); |
| |
| // Write a COMM chunk |
| dos.writeInt(AiffFileFormat.COMM_MAGIC); |
| dos.writeInt( (commChunkSize-8) ); |
| dos.writeShort(channels); |
| dos.writeInt(numFrames); |
| dos.writeShort(sampleSize); |
| write_ieee_extended(dos, sampleFramesPerSecond); // 10 bytes |
| |
| //Only for AIFC |
| //dos.writeInt(compCode); |
| //dos.writeInt(compCode); |
| //dos.writeShort(0); |
| |
| // Write the SSND chunk header |
| dos.writeInt(AiffFileFormat.SSND_MAGIC); |
| dos.writeInt( (ssndChunkSize-8) ); |
| // ssndOffset and ssndBlockSize set to 0 upon |
| // recommendation in "Sound Manager" chapter in |
| // "Inside Macintosh Sound", pp 2-87 (from Babu) |
| dos.writeInt(0); // ssndOffset |
| dos.writeInt(0); // ssndBlockSize |
| |
| // Concat this with the audioStream and return it |
| |
| dos.close(); |
| header = baos.toByteArray(); |
| headerStream = new ByteArrayInputStream( header ); |
| |
| aiffStream = new SequenceInputStream(headerStream, |
| new NoCloseInputStream(codedAudioStream)); |
| |
| return aiffStream; |
| |
| } |
| |
| |
| |
| |
| // HELPER METHODS |
| |
| private static final int DOUBLE_MANTISSA_LENGTH = 52; |
| private static final int DOUBLE_EXPONENT_LENGTH = 11; |
| private static final long DOUBLE_SIGN_MASK = 0x8000000000000000L; |
| private static final long DOUBLE_EXPONENT_MASK = 0x7FF0000000000000L; |
| private static final long DOUBLE_MANTISSA_MASK = 0x000FFFFFFFFFFFFFL; |
| private static final int DOUBLE_EXPONENT_OFFSET = 1023; |
| |
| private static final int EXTENDED_EXPONENT_OFFSET = 16383; |
| private static final int EXTENDED_MANTISSA_LENGTH = 63; |
| private static final int EXTENDED_EXPONENT_LENGTH = 15; |
| private static final long EXTENDED_INTEGER_MASK = 0x8000000000000000L; |
| |
| /** |
| * Extended precision IEEE floating-point conversion routine. |
| * @argument DataOutputStream |
| * @argument double |
| * @exception IOException |
| */ |
| private void write_ieee_extended(DataOutputStream dos, float f) throws IOException { |
| /* The special cases NaN, Infinity and Zero are ignored, since |
| they do not represent useful sample rates anyway. |
| Denormalized number aren't handled, too. Below, there is a cast |
| from float to double. We hope that in this conversion, |
| numbers are normalized. Numbers that cannot be normalized are |
| ignored, too, as they, too, do not represent useful sample rates. */ |
| long doubleBits = Double.doubleToLongBits((double) f); |
| |
| long sign = (doubleBits & DOUBLE_SIGN_MASK) |
| >> (DOUBLE_EXPONENT_LENGTH + DOUBLE_MANTISSA_LENGTH); |
| long doubleExponent = (doubleBits & DOUBLE_EXPONENT_MASK) |
| >> DOUBLE_MANTISSA_LENGTH; |
| long doubleMantissa = doubleBits & DOUBLE_MANTISSA_MASK; |
| |
| long extendedExponent = doubleExponent - DOUBLE_EXPONENT_OFFSET |
| + EXTENDED_EXPONENT_OFFSET; |
| long extendedMantissa = doubleMantissa |
| << (EXTENDED_MANTISSA_LENGTH - DOUBLE_MANTISSA_LENGTH); |
| long extendedSign = sign << EXTENDED_EXPONENT_LENGTH; |
| short extendedBits79To64 = (short) (extendedSign | extendedExponent); |
| long extendedBits63To0 = EXTENDED_INTEGER_MASK | extendedMantissa; |
| |
| dos.writeShort(extendedBits79To64); |
| dos.writeLong(extendedBits63To0); |
| } |
| |
| |
| } |
