1 /* |
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2 * Copyright (c) 1999, 2014, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. Oracle designates this |
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8 * particular file as subject to the "Classpath" exception as provided |
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9 * by Oracle in the LICENSE file that accompanied this code. |
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10 * |
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11 * This code is distributed in the hope that it will be useful, but WITHOUT |
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12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 * version 2 for more details (a copy is included in the LICENSE file that |
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15 * accompanied this code). |
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16 * |
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17 * You should have received a copy of the GNU General Public License version |
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18 * 2 along with this work; if not, write to the Free Software Foundation, |
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19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 * |
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21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 * or visit www.oracle.com if you need additional information or have any |
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23 * questions. |
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24 */ |
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25 |
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26 package sun.audio; |
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27 |
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28 import java.util.Hashtable; |
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29 import java.util.Vector; |
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30 import java.io.IOException; |
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31 import java.io.InputStream; |
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32 import java.io.BufferedInputStream; |
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33 |
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34 import javax.sound.sampled.*; |
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35 import javax.sound.midi.*; |
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36 import com.sun.media.sound.DataPusher; |
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37 import com.sun.media.sound.Toolkit; |
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38 |
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39 /** |
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40 * This class provides an interface to the Headspace Audio engine through |
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41 * the Java Sound API. |
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42 * |
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43 * This class emulates systems with multiple audio channels, mixing |
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44 * multiple streams for the workstation's single-channel device. |
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45 * |
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46 * @see AudioData |
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47 * @see AudioDataStream |
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48 * @see AudioStream |
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49 * @see AudioStreamSequence |
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50 * @see ContinuousAudioDataStream |
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51 * @author David Rivas |
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52 * @author Kara Kytle |
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53 * @author Jan Borgersen |
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54 * @author Florian Bomers |
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55 */ |
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56 |
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57 public final class AudioDevice { |
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58 |
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59 private boolean DEBUG = false /*true*/ ; |
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60 |
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61 private Vector<Info> infos; |
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62 |
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63 /** Are we currently playing audio? */ |
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64 private boolean playing = false; |
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65 |
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66 /** Handle to the JS audio mixer. */ |
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67 private Mixer mixer = null; |
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68 |
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69 |
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70 |
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71 /** |
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72 * The default audio player. This audio player is initialized |
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73 * automatically. |
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74 */ |
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75 public static final AudioDevice device = new AudioDevice(); |
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76 |
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77 /** |
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78 * Create an AudioDevice instance. |
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79 */ |
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80 private AudioDevice() { |
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81 infos = new Vector<>(); |
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82 } |
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83 |
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84 |
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85 private synchronized void startSampled( AudioInputStream as, |
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86 InputStream in ) throws UnsupportedAudioFileException, |
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87 LineUnavailableException { |
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88 |
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89 Info info = null; |
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90 DataPusher datapusher = null; |
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91 DataLine.Info lineinfo = null; |
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92 SourceDataLine sourcedataline = null; |
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93 |
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94 // if ALAW or ULAW, we must convert.... |
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95 as = Toolkit.getPCMConvertedAudioInputStream(as); |
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96 |
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97 if( as==null ) { |
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98 // could not convert |
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99 return; |
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100 } |
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101 |
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102 lineinfo = new DataLine.Info(SourceDataLine.class, |
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103 as.getFormat()); |
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104 if( !(AudioSystem.isLineSupported(lineinfo))) { |
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105 return; |
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106 } |
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107 sourcedataline = (SourceDataLine)AudioSystem.getLine(lineinfo); |
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108 datapusher = new DataPusher(sourcedataline, as); |
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109 |
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110 info = new Info( null, in, datapusher ); |
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111 infos.addElement( info ); |
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112 |
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113 datapusher.start(); |
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114 } |
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115 |
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116 private synchronized void startMidi( InputStream bis, |
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117 InputStream in ) throws InvalidMidiDataException, |
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118 MidiUnavailableException { |
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119 |
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120 Sequencer sequencer = null; |
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121 Info info = null; |
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122 |
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123 sequencer = MidiSystem.getSequencer( ); |
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124 sequencer.open(); |
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125 try { |
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126 sequencer.setSequence( bis ); |
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127 } catch( IOException e ) { |
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128 throw new InvalidMidiDataException( e.getMessage() ); |
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129 } |
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130 |
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131 info = new Info( sequencer, in, null ); |
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132 |
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133 infos.addElement( info ); |
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134 |
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135 // fix for bug 4302884: Audio device is not released when AudioClip stops |
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136 sequencer.addMetaEventListener(info); |
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137 |
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138 sequencer.start(); |
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139 |
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140 } |
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141 |
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142 |
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143 |
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144 /** |
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145 * Open an audio channel. |
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146 */ |
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147 public synchronized void openChannel(InputStream in) { |
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148 |
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149 |
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150 if(DEBUG) { |
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151 System.out.println("AudioDevice: openChannel"); |
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152 System.out.println("input stream =" + in); |
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153 } |
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154 |
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155 Info info = null; |
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156 |
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157 // is this already playing? if so, then just return |
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158 for(int i=0; i<infos.size(); i++) { |
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159 info = infos.elementAt(i); |
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160 if( info.in == in ) { |
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161 |
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162 return; |
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163 } |
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164 } |
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165 |
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166 |
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167 AudioInputStream as = null; |
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168 |
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169 if( in instanceof AudioStream ) { |
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170 |
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171 if ( ((AudioStream)in).midiformat != null ) { |
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172 |
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173 // it's a midi file |
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174 try { |
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175 startMidi( ((AudioStream)in).stream, in ); |
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176 } catch (Exception e) { |
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177 return; |
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178 } |
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179 |
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180 |
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181 } else if( ((AudioStream)in).ais != null ) { |
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182 |
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183 // it's sampled audio |
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184 try { |
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185 startSampled( ((AudioStream)in).ais, in ); |
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186 } catch (Exception e) { |
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187 return; |
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188 } |
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189 |
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190 } |
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191 } else if (in instanceof AudioDataStream ) { |
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192 if (in instanceof ContinuousAudioDataStream) { |
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193 try { |
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194 AudioInputStream ais = new AudioInputStream(in, |
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195 ((AudioDataStream)in).getAudioData().format, |
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196 AudioSystem.NOT_SPECIFIED); |
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197 startSampled(ais, in ); |
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198 } catch (Exception e) { |
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199 return; |
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200 } |
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201 } |
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202 else { |
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203 try { |
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204 AudioInputStream ais = new AudioInputStream(in, |
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205 ((AudioDataStream)in).getAudioData().format, |
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206 ((AudioDataStream)in).getAudioData().buffer.length); |
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207 startSampled(ais, in ); |
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208 } catch (Exception e) { |
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209 return; |
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210 } |
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211 } |
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212 } else { |
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213 BufferedInputStream bis = new BufferedInputStream( in, 1024 ); |
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214 |
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215 try { |
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216 |
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217 try { |
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218 as = AudioSystem.getAudioInputStream(bis); |
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219 } catch(IOException ioe) { |
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220 return; |
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221 } |
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222 |
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223 startSampled( as, in ); |
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224 |
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225 } catch( UnsupportedAudioFileException e ) { |
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226 |
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227 try { |
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228 try { |
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229 MidiFileFormat mff = |
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230 MidiSystem.getMidiFileFormat( bis ); |
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231 } catch(IOException ioe1) { |
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232 return; |
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233 } |
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234 |
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235 startMidi( bis, in ); |
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236 |
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237 |
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238 } catch( InvalidMidiDataException e1 ) { |
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239 |
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240 // $$jb:08.01.99: adding this section to make some of our other |
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241 // legacy classes work..... |
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242 // not MIDI either, special case handling for all others |
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243 |
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244 AudioFormat defformat = new AudioFormat( AudioFormat.Encoding.ULAW, |
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245 8000, 8, 1, 1, 8000, true ); |
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246 try { |
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247 AudioInputStream defaif = new AudioInputStream( bis, |
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248 defformat, AudioSystem.NOT_SPECIFIED); |
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249 startSampled( defaif, in ); |
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250 } catch (UnsupportedAudioFileException es) { |
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251 return; |
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252 } catch (LineUnavailableException es2) { |
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253 return; |
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254 } |
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255 |
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256 } catch( MidiUnavailableException e2 ) { |
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257 |
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258 // could not open sequence |
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259 return; |
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260 } |
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261 |
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262 } catch( LineUnavailableException e ) { |
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263 |
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264 return; |
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265 } |
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266 } |
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267 |
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268 // don't forget adjust for a new stream. |
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269 notify(); |
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270 } |
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271 |
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272 |
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273 /** |
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274 * Close an audio channel. |
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275 */ |
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276 public synchronized void closeChannel(InputStream in) { |
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277 |
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278 if(DEBUG) { |
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279 System.out.println("AudioDevice.closeChannel"); |
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280 } |
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281 |
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282 if (in == null) return; // can't go anywhere here! |
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283 |
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284 Info info; |
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285 |
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286 for(int i=0; i<infos.size(); i++) { |
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287 |
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288 info = infos.elementAt(i); |
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289 |
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290 if( info.in == in ) { |
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291 |
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292 if( info.sequencer != null ) { |
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293 |
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294 info.sequencer.stop(); |
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295 //info.sequencer.close(); |
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296 infos.removeElement( info ); |
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297 |
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298 } else if( info.datapusher != null ) { |
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299 |
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300 info.datapusher.stop(); |
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301 infos.removeElement( info ); |
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302 } |
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303 } |
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304 } |
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305 notify(); |
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306 } |
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307 |
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308 |
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309 /** |
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310 * Open the device (done automatically) |
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311 */ |
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312 public synchronized void open() { |
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313 |
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314 // $$jb: 06.24.99: This is done on a per-stream |
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315 // basis using the new JS API now. |
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316 } |
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317 |
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318 |
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319 /** |
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320 * Close the device (done automatically) |
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321 */ |
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322 public synchronized void close() { |
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323 |
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324 // $$jb: 06.24.99: This is done on a per-stream |
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325 // basis using the new JS API now. |
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326 |
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327 } |
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328 |
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329 |
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330 /** |
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331 * Play open audio stream(s) |
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332 */ |
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333 public void play() { |
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334 |
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335 // $$jb: 06.24.99: Holdover from old architechture ... |
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336 // we now open/close the devices as needed on a per-stream |
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337 // basis using the JavaSound API. |
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338 |
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339 if (DEBUG) { |
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340 System.out.println("exiting play()"); |
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341 } |
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342 } |
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343 |
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344 /** |
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345 * Close streams |
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346 */ |
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347 public synchronized void closeStreams() { |
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348 |
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349 Info info; |
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350 |
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351 for(int i=0; i<infos.size(); i++) { |
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352 |
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353 info = infos.elementAt(i); |
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354 |
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355 if( info.sequencer != null ) { |
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356 |
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357 info.sequencer.stop(); |
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358 info.sequencer.close(); |
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359 infos.removeElement( info ); |
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360 |
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361 } else if( info.datapusher != null ) { |
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362 |
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363 info.datapusher.stop(); |
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364 infos.removeElement( info ); |
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365 } |
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366 } |
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367 |
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368 |
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369 if (DEBUG) { |
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370 System.err.println("Audio Device: Streams all closed."); |
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371 } |
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372 // Empty the hash table. |
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373 infos = new Vector<>(); |
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374 } |
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375 |
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376 /** |
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377 * Number of channels currently open. |
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378 */ |
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379 public int openChannels() { |
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380 return infos.size(); |
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381 } |
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382 |
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383 /** |
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384 * Make the debug info print out. |
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385 */ |
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386 void setVerbose(boolean v) { |
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387 DEBUG = v; |
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388 } |
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389 |
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390 |
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391 |
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392 |
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393 |
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394 |
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395 // INFO CLASS |
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396 |
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397 final class Info implements MetaEventListener { |
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398 |
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399 final Sequencer sequencer; |
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400 final InputStream in; |
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401 final DataPusher datapusher; |
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402 |
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403 Info( Sequencer sequencer, InputStream in, DataPusher datapusher ) { |
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404 |
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405 this.sequencer = sequencer; |
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406 this.in = in; |
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407 this.datapusher = datapusher; |
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408 } |
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409 |
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410 public void meta(MetaMessage event) { |
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411 if (event.getType() == 47 && sequencer != null) { |
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412 sequencer.close(); |
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413 } |
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414 } |
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415 } |
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416 |
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417 |
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418 |
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419 } |
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