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
93 // Now "universal" platform(s)
94 if (isPlatformEnabled("JavaPlatform")) {
95 platty = JavaPlatform.getPlatformInstance();
96 if (null != platty) {
97 platforms.add(platty);
98 }
99 }
100
101 if (!HostUtils.isIOS() && isPlatformEnabled("GSTPlatform")) {
102 platty = GSTPlatform.getPlatformInstance();
103 if (null != platty) {
104 platforms.add(platty);
105 }
106 }
107
108 // Add after GSTPlatform so it's used as a fallback
109 if (HostUtils.isMacOSX() && isPlatformEnabled("OSXPlatform")) {
110 platty = OSXPlatform.getPlatformInstance();
111 if (null != platty) {
112 platforms.add(platty);
113 }
114 }
115
116 if (HostUtils.isIOS() && isPlatformEnabled("IOSPlatform")) {
117 platty = IOSPlatform.getPlatformInstance();
118 if (null != platty) {
119 platforms.add(platty);
120 }
121 }
122
123 if (Logger.canLog(Logger.DEBUG)) {
124 StringBuilder sb = new StringBuilder("Enabled JFXMedia platforms: ");
125 for (Platform p : platforms) {
126 sb.append("\n - ");
127 sb.append(p.getClass().getName());
128 }
129 Logger.logMsg(Logger.DEBUG, sb.toString());
130 }
131 }
132
133 public synchronized void loadPlatforms() {
134 // Use an iterator so we can remove on failure
135 Iterator<Platform> iter = platforms.iterator();
136 while (iter.hasNext()) {
137 Platform platty = iter.next();
138 if (!platty.loadPlatform()) {
139 if (Logger.canLog(Logger.DEBUG)) {
140 Logger.logMsg(Logger.DEBUG, "Failed to load platform: "+platty);
141 }
142 // remove it so it can't be reused
143 iter.remove();
144 }
145 }
146 }
147
148 public List<String> getSupportedContentTypes() {
149 ArrayList<String> outTypes = new ArrayList<String>();
150
151 if (!platforms.isEmpty()) {
152 for (Platform platty : platforms) {
153 if (Logger.canLog(Logger.DEBUG)) {
154 Logger.logMsg(Logger.DEBUG, "Getting content types from platform: "+platty);
155 }
156 String[] npt = platty.getSupportedContentTypes();
157 if (npt != null) {
158 for (String type : npt) {
159 if (!outTypes.contains(type)) {
160 outTypes.add(type);
161 }
162 }
163 }
164 }
165 }
166
167 return outTypes;
168 }
169
170 public MetadataParser createMetadataParser(Locator source) {
171 for (Platform platty : platforms) {
172 MetadataParser parser = platty.createMetadataParser(source);
173 if (parser != null) {
174 return parser;
175 }
176 }
177
178 return null;
179 }
180
181 // FIXME: Make Media non-platform specific, it doesn't need to be
182 public Media createMedia(Locator source) {
183 String mimeType = source.getContentType();
184 // go down the list until we get one that can be created
185 for (Platform platty : platforms) {
186 if (platty.canPlayContentType(mimeType)) {
187 Media outMedia = platty.createMedia(source);
188 if (null != outMedia) {
189 return outMedia;
190 }
191 }
192 }
193
194 return null;
195 }
196
197 public MediaPlayer createMediaPlayer(Locator source) {
198 String mimeType = source.getContentType();
199 // go down the list until we get one that can be created
200 for (Platform platty : platforms) {
201 if (platty.canPlayContentType(mimeType)) {
202 // attempt to preroll the player
203 Object cookie = platty.prerollMediaPlayer(source);
204 if (null != cookie) {
205 // OK to play, go ahead with player creation
206 MediaPlayer outPlayer = platty.createMediaPlayer(source, cookie);
207 if (null != outPlayer) {
208 return outPlayer;
209 }
210 }
211 }
212 }
213
214 return null;
215 }
216 }