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| 1 | /* | ||
| 2 | * Copyright (c) 1999, 2002, Oracle and/or its affiliates. All rights reserved. | ||
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. | ||
| 4 | * | ||
| 5 | * This code is free software; you can redistribute it and/or modify it | ||
| 6 | * under the terms of the GNU General Public License version 2 only, as | ||
| 7 | * published by the Free Software Foundation. Oracle designates this | ||
| 8 | * particular file as subject to the "Classpath" exception as provided | ||
| 9 | * by Oracle in the LICENSE file that accompanied this code. | ||
| 10 | * | ||
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT | ||
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | ||
| 14 | * version 2 for more details (a copy is included in the LICENSE file that | ||
| 15 | * accompanied this code). | ||
| 16 | * | ||
| 17 | * You should have received a copy of the GNU General Public License version | ||
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, | ||
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | ||
| 20 | * | ||
| 21 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA | ||
| 22 | * or visit www.oracle.com if you need additional information or have any | ||
| 23 | * questions. | ||
| 24 | */ | ||
| 25 | |||
| 26 | package sun.audio; | ||
| 27 | |||
| 28 | import java.io.InputStream; | ||
| 29 | import java.io.DataInputStream; | ||
| 30 | import java.io.FilterInputStream; | ||
| 31 | import java.io.ByteArrayInputStream; | ||
| 32 | import java.io.BufferedInputStream; | ||
| 33 | import java.io.IOException; | ||
| 34 | |||
| 35 | import javax.sound.sampled.*; | ||
| 36 | import javax.sound.midi.*; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * Convert an InputStream to an AudioStream. | ||
| 40 | * | ||
| 41 | */ | ||
| 42 | |||
| 43 | |||
| 44 | public class AudioStream extends FilterInputStream { | ||
| 45 | |||
| 46 | // AudioContainerInputStream acis; | ||
| 47 | protected AudioInputStream ais = null; | ||
| 48 | protected AudioFormat format = null; | ||
| 49 | protected MidiFileFormat midiformat = null; | ||
| 50 | protected InputStream stream = null; | ||
| 51 | |||
| 52 | |||
| 53 | /* | ||
| 54 | * create the AudioStream; if we survive without throwing | ||
| 55 | * an exception, we should now have some subclass of | ||
| 56 | * ACIS with all the header info already read | ||
| 57 | */ | ||
| 58 | |||
| 59 | public AudioStream(InputStream in) throws IOException { | ||
| 60 | |||
| 61 | super(in); | ||
| 62 | |||
| 63 | stream = in; | ||
| 64 | |||
| 65 | if( in.markSupported() == false ) { | ||
| 66 | |||
| 67 | stream = new BufferedInputStream( in, 1024 ); | ||
| 68 | } | ||
| 69 | |||
| 70 | try { | ||
| 71 | ais = AudioSystem.getAudioInputStream( stream ); | ||
| 72 | format = ais.getFormat(); | ||
| 73 | this.in = ais; | ||
| 74 | |||
| 75 | } catch (UnsupportedAudioFileException e ) { | ||
| 76 | |||
| 77 | // not an audio file, see if it's midi... | ||
| 78 | try { | ||
| 79 | midiformat = MidiSystem.getMidiFileFormat( stream ); | ||
| 80 | |||
| 81 | } catch (InvalidMidiDataException e1) { | ||
| 82 | throw new IOException("could not create audio stream from input stream"); | ||
| 83 | } | ||
| 84 | } | ||
| 85 | } | ||
| 86 | |||
| 87 | |||
| 88 | |||
| 89 | |||
| 90 | /** | ||
| 91 | * A blocking read. | ||
| 92 | */ | ||
| 93 | /* public int read(byte buf[], int pos, int len) throws IOException { | ||
| 94 | |||
| 95 | return(acis.readFully(buf, pos, len)); | ||
| 96 | } | ||
| 97 | */ | ||
| 98 | |||
| 99 | /** | ||
| 100 | * Get the data. | ||
| 101 | */ | ||
| 102 | public AudioData getData() throws IOException { | ||
| 103 | int length = getLength(); | ||
| 104 | |||
| 105 | //limit the memory to 1M, so too large au file won't load | ||
| 106 | if (length < 1024*1024) { | ||
| 107 | byte [] buffer = new byte[length]; | ||
| 108 | try { | ||
| 109 | ais.read(buffer, 0, length); | ||
| 110 | } catch (IOException ex) { | ||
| 111 | throw new IOException("Could not create AudioData Object"); | ||
| 112 | } | ||
| 113 | return new AudioData(format, buffer); | ||
| 114 | } | ||
| 115 | |||
| 116 | /* acis.setData(); | ||
| 117 | |||
| 118 | if (acis.stream instanceof ByteArrayInputStream) { | ||
| 119 | Format[] format = acis.getFormat(); | ||
| 120 | byte[] bytes = acis.getBytes(); | ||
| 121 | if (bytes == null) | ||
| 122 | throw new IOException("could not create AudioData object: no data received"); | ||
| 123 | return new AudioData((AudioFormat)format[0], bytes); | ||
| 124 | } | ||
| 125 | */ | ||
| 126 | |||
| 127 | throw new IOException("could not create AudioData object"); | ||
| 128 | } | ||
| 129 | |||
| 130 | |||
| 131 | public int getLength() { | ||
| 132 | |||
| 133 | if( ais != null && format != null ) { | ||
| 134 | return (int) (ais.getFrameLength() * | ||
| 135 | ais.getFormat().getFrameSize() ); | ||
| 136 | |||
| 137 | } else if ( midiformat != null ) { | ||
| 138 | return (int) midiformat.getByteLength(); | ||
| 139 | |||
| 140 | } else { | ||
| 141 | return -1; | ||
| 142 | } | ||
| 143 | } | ||
| 144 | } | ||