1 /* 2 * Copyright (c) 2010, 2014, 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 com.sun.media.jfxmediaimpl.platform; 27 28 import com.sun.media.jfxmedia.Media; 29 import com.sun.media.jfxmedia.MediaPlayer; 30 import com.sun.media.jfxmedia.MetadataParser; 31 import com.sun.media.jfxmedia.locator.Locator; 32 import com.sun.media.jfxmedia.logging.Logger; 33 import com.sun.media.jfxmediaimpl.platform.java.JavaPlatform; 34 import com.sun.media.jfxmediaimpl.HostUtils; 35 import com.sun.media.jfxmediaimpl.platform.gstreamer.GSTPlatform; 36 import com.sun.media.jfxmediaimpl.platform.osx.OSXPlatform; 37 import com.sun.media.jfxmediaimpl.platform.ios.IOSPlatform; 38 import java.security.AccessController; 39 import java.security.PrivilegedAction; 40 import java.util.ArrayList; 41 import java.util.Iterator; 42 import java.util.List; 43 44 /** 45 * Core media platform management code. 46 */ 47 public final class PlatformManager { 48 private static String enabledPlatforms; 49 static { 50 AccessController.doPrivileged((PrivilegedAction) () -> { 51 getPlatformSettings(); 52 return null; 53 }); 54 } 55 56 private static void getPlatformSettings() { 57 // get enabled platforms, comma separated list, e.g., -Djfxmedia.platforms=GSTPlatform,OSXPlatform 58 enabledPlatforms = System.getProperty("jfxmedia.platforms", "").toLowerCase(); 59 } 60 61 private static boolean isPlatformEnabled(String name) { 62 if (null == enabledPlatforms || enabledPlatforms.length() == 0) { 63 // everything enabled 64 return true; 65 } 66 return (enabledPlatforms.indexOf(name.toLowerCase()) != -1); 67 } 68 69 private static final class PlatformManagerInitializer { 70 private static final PlatformManager globalInstance = new PlatformManager(); 71 } 72 73 public static PlatformManager getManager() { 74 return PlatformManagerInitializer.globalInstance; 75 } 76 77 private final List<Platform> platforms; 78 79 private PlatformManager() { 80 platforms = new ArrayList<Platform>(); 81 82 Platform platty; 83 84 /* 85 * We don't want to fully initialize the platforms here for performance 86 * reasons but some platforms may be dependent on native resources that 87 * need to be loaded, those platforms need to be given a chance to load 88 * those resources (without initializing) and determine if the natives 89 * are available. 90 */ 91 92 // Now "universal" platform(s) 93 if (isPlatformEnabled("JavaPlatform")) { 94 platty = JavaPlatform.getPlatformInstance(); 95 if (null != platty) { 96 platforms.add(platty); 97 } 98 } 99 100 if (!HostUtils.isIOS() && isPlatformEnabled("GSTPlatform")) { 101 platty = GSTPlatform.getPlatformInstance(); 102 if (null != platty) { 103 platforms.add(platty); 104 } 105 } 106 107 // Add after GSTPlatform so it's used as a fallback 108 if (HostUtils.isMacOSX() && isPlatformEnabled("OSXPlatform")) { 109 platty = OSXPlatform.getPlatformInstance(); 110 if (null != platty) { 111 platforms.add(platty); 112 } 113 } 114 115 if (HostUtils.isIOS() && isPlatformEnabled("IOSPlatform")) { 116 platty = IOSPlatform.getPlatformInstance(); 117 if (null != platty) { 118 platforms.add(platty); 119 } 120 } 121 122 if (Logger.canLog(Logger.DEBUG)) { 123 StringBuilder sb = new StringBuilder("Enabled JFXMedia platforms: "); 124 for (Platform p : platforms) { 125 sb.append("\n - "); 126 sb.append(p.getClass().getName()); 127 } 128 Logger.logMsg(Logger.DEBUG, sb.toString()); 129 } 130 } 131 132 public synchronized void loadPlatforms() { 133 // Use an iterator so we can remove on failure 134 Iterator<Platform> iter = platforms.iterator(); 135 while (iter.hasNext()) { 136 Platform platty = iter.next(); 137 if (!platty.loadPlatform()) { 138 if (Logger.canLog(Logger.DEBUG)) { 139 Logger.logMsg(Logger.DEBUG, "Failed to load platform: "+platty); 140 } 141 // remove it so it can't be reused 142 iter.remove(); 143 } 144 } 145 } 146 147 public List<String> getSupportedContentTypes() { 148 ArrayList<String> outTypes = new ArrayList<String>(); 149 150 if (!platforms.isEmpty()) { 151 for (Platform platty : platforms) { 152 if (Logger.canLog(Logger.DEBUG)) { 153 Logger.logMsg(Logger.DEBUG, "Getting content types from platform: "+platty); 154 } 155 String[] npt = platty.getSupportedContentTypes(); 156 if (npt != null) { 157 for (String type : npt) { 158 if (!outTypes.contains(type)) { 159 outTypes.add(type); 160 } 161 } 162 } 163 } 164 } 165 166 return outTypes; 167 } 168 169 public MetadataParser createMetadataParser(Locator source) { 170 for (Platform platty : platforms) { 171 MetadataParser parser = platty.createMetadataParser(source); 172 if (parser != null) { 173 return parser; 174 } 175 } 176 177 return null; 178 } 179 180 // FIXME: Make Media non-platform specific, it doesn't need to be 181 public Media createMedia(Locator source) { 182 String mimeType = source.getContentType(); 183 // go down the list until we get one that can be created 184 for (Platform platty : platforms) { 185 if (platty.canPlayContentType(mimeType)) { 186 Media outMedia = platty.createMedia(source); 187 if (null != outMedia) { 188 return outMedia; 189 } 190 } 191 } 192 193 return null; 194 } 195 196 public MediaPlayer createMediaPlayer(Locator source) { 197 String mimeType = source.getContentType(); 198 // go down the list until we get one that can be created 199 for (Platform platty : platforms) { 200 if (platty.canPlayContentType(mimeType)) { 201 // attempt to preroll the player 202 Object cookie = platty.prerollMediaPlayer(source); 203 if (null != cookie) { 204 // OK to play, go ahead with player creation 205 MediaPlayer outPlayer = platty.createMediaPlayer(source, cookie); 206 if (null != outPlayer) { 207 return outPlayer; 208 } 209 } 210 } 211 } 212 213 return null; 214 } 215 }