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commiting deskshare app

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git-svn-id: http://svn.bigbluebutton.org/project-bbb/trunk@3 6ac8b576-4aa1-4e98-a958-8badfeb98c9d
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Richard Alam 2009-09-11 20:04:59 +00:00
parent bee6ba317f
commit 013b6ea7df
38 changed files with 3343 additions and 0 deletions
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bbb-apps-deskshare/.classpath Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<classpath>
<classpathentry kind="src" path="src/main/java"/>
<classpathentry kind="src" path="src/test/java"/>
<classpathentry exported="true" kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER"/>
<classpathentry kind="lib" path="lib/log4j-over-slf4j-1.5.6.jar"/>
<classpathentry kind="lib" path="lib/logback-classic-0.9.14.jar"/>
<classpathentry kind="lib" path="lib/logback-core-0.9.14.jar"/>
<classpathentry kind="lib" path="lib/slf4j-api-1.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-aop-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-beans-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-context-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-core-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-web-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/spring-webmvc-2.5.6.jar"/>
<classpathentry kind="lib" path="lib/servlet-api-2.5.jar"/>
<classpathentry kind="lib" path="lib/mina-core-2.0.0-M6.jar"/>
<classpathentry kind="lib" path="lib/red5-0.8.jar"/>
<classpathentry kind="lib" path="lib/xuggle-xuggler-3.0.660.jar"/>
<classpathentry kind="lib" path="lib/xuggle-xuggler-red5-3.0.662.jar"/>
<classpathentry kind="output" path="bin"/>
</classpath>

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bbb-apps-deskshare/.project Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
<name>deskshare-app</name>
<comment></comment>
<projects>
</projects>
<buildSpec>
<buildCommand>
<name>org.eclipse.jdt.core.javabuilder</name>
<arguments>
</arguments>
</buildCommand>
</buildSpec>
<natures>
<nature>org.eclipse.jdt.core.javanature</nature>
</natures>
</projectDescription>

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bbb-apps-deskshare/.settings/org.eclipse.jdt.core.prefs Normal file
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#Mon Jul 20 12:24:39 EDT 2009
eclipse.preferences.version=1
org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
org.eclipse.jdt.core.compiler.compliance=1.6
org.eclipse.jdt.core.compiler.debug.lineNumber=generate
org.eclipse.jdt.core.compiler.debug.localVariable=generate
org.eclipse.jdt.core.compiler.debug.sourceFile=generate
org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
org.eclipse.jdt.core.compiler.source=1.6

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bbb-apps-deskshare/INSTALL Normal file
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TODO:
- create install instructions

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bbb-apps-deskshare/README Normal file
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BigBlueButton DeskShare is licensed as AGPL to comply with Xuggler 3.0 license.

661
bbb-apps-deskshare/agpl.txt Normal file
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later version.
15. Disclaimer of Warranty.
THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
16. Limitation of Liability.
IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
SUCH DAMAGES.
17. Interpretation of Sections 15 and 16.
If the disclaimer of warranty and limitation of liability provided
above cannot be given local legal effect according to their terms,
reviewing courts shall apply local law that most closely approximates
an absolute waiver of all civil liability in connection with the
Program, unless a warranty or assumption of liability accompanies a
copy of the Program in return for a fee.
END OF TERMS AND CONDITIONS
How to Apply These Terms to Your New Programs
If you develop a new program, and you want it to be of the greatest
possible use to the public, the best way to achieve this is to make it
free software which everyone can redistribute and change under these terms.
To do so, attach the following notices to the program. It is safest
to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.
<one line to give the program's name and a brief idea of what it does.>
Copyright (C) <year> <name of author>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
Also add information on how to contact you by electronic and paper mail.
If your software can interact with users remotely through a computer
network, you should also make sure that it provides a way for users to
get its source. For example, if your program is a web application, its
interface could display a "Source" link that leads users to an archive
of the code. There are many ways you could offer source, and different
solutions will be better for different programs; see section 13 for the
specific requirements.
You should also get your employer (if you work as a programmer) or school,
if any, to sign a "copyright disclaimer" for the program, if necessary.
For more information on this, and how to apply and follow the GNU AGPL, see
<http://www.gnu.org/licenses/>.

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# NOTE:
# Copy build.properties to your home directory. This way
# you have a custom copy configured for your own environment.
#
# Replace red5_home with the directory where you installed Red5
#
red5.home = /path/to/where/you/installed/red5
# General
project.name=BigBlueButton Desk Share Application
project.url=http://code.google.com/p/bigbluebutton
project.age=2008-2009
project.fullname=${project.name}
# Release
release.filename=bbb-app-deskshare
release.archive=${release.filename}.tar.gz
# Ivy
ivy.version=ivy-2.0.0-beta1
# javac options
# http://ant.apache.org/manual/CoreTasks/javac.html
#
# sun javac
build.compiler=modern
# jikes
#build.compiler=jikes
# generic compiler options
build.verbose=false
build.fork=true
build.deprecation=false
build.nowarn=true
# optimize only works with a few compilers
build.optimize=false
# Change this var to build to a different Java version
# Defaults to current version. Valid options are 1.6, or 1.5. Note 1.4 is not supported.
java.target_version=${java.specification.version}
# jikes options
build.compiler.emacs=false
build.compiler.fulldepend=false
build.compiler.pedantic=false
build.debug=true
debug.state=true
junit.fork=false
junit.forkmode=once
target.version=0.1
environment=env
java.home=${env.JDK_HOME}

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<?xml version="1.0" ?>
<project name="bbb-app-deskshare" basedir="." default="echoall" xmlns:ivy="antlib:org.apache.ivy.ant">
<!-- This build file requires Apache Ant >= 1.7 -->
<condition property="ant-at-least-7">
<antversion atleast="1.7.0"/>
</condition>
<!-- project properties -->
<!-- user overides for project properties -->
<!-- Should be first as properties are immutable.-->
<!-- This allows user to override default properties-->
<property file="${user.home}/.deskshare-build.properties"/>
<!-- base project properties -->
<property file="build.properties"/>
<property environment="env"/>
<property name="dist.dir" value="dist"/>
<property name="build.dir" value="build"/>
<property name="lib.dir" value="lib"/>
<property name="build.classes.dir" value="${build.dir}/classes"/>
<property name="test.dir" value="${build.dir}/test"/>
<property name="test.classes.dir" value="${test.dir}/classes"/>
<property name="test.data.dir" value="${test.dir}/data"/>
<property name="test.reports.dir" value="${test.dir}/reports"/>
<property name="fitnesse.test.classes.dir" value="${test.dir}/fitnesse/classes"/>
<property name="dist.webapps.dir" value="${dist.dir}/webapps"/>
<property name="target.extension" value="jar"/>
<property name="project.name-ver" value="${project.name}-${target.version}"/>
<property name="target.name" value="${project.name-ver}.${target.extension}"/>
<property name="target.jar" value="${dist.dir}/${target.name}"/>
<property name="target.zip" value="${dist.dir}/${project.name-ver}.zip"/>
<property name="target.tar" value="${dist.dir}/${project.name-ver}.tar"/>
<property name="target.tar.gz" value="${target.tar}.gz"/>
<property name="src.dir" value="src/main/java"/>
<property name="test.src.dir" value="src/test/java"/>
<property name="webapp.dir" value="src/main/webapp"/>
<tstamp prefix="build">
<format property="TODAY" pattern="d-MMMM-yyyy" locale="en"/>
</tstamp>
<path id="project.classpath">
<fileset dir="${lib.dir}"/>
</path>
<path id="full.classpath">
<fileset dir="${lib.dir}"/>
</path>
<path id="compile.classpath">
<fileset dir="${lib.dir}">
<include name="*.jar"/>
</fileset>
</path>
<path id="compiled.classes.dir">
<fileset dir="${build.dir}">
<include name="*.jar"/>
</fileset>
</path>
<path id="test.compile.classpath">
<path refid="compile.classpath"/>
<path refid="compiled.classes.dir"/>
</path>
<path id="test.classpath">
<path refid="test.compile.classpath"/>
<pathelement location="${test.classes.dir}"/>
</path>
<path id="test.forking.classpath">
<path refid="test.classpath"/>
<pathelement path="${java.class.path}"/>
</path>
<!-- Build Targets -->
<target name="prepare" depends="clean" description="Setup directories for build">
<mkdir dir="${build.dir}"/>
<mkdir dir="${dist.dir}"/>
<mkdir dir="${test.classes.dir}"/>
<mkdir dir="${test.reports.dir}"/>
<mkdir dir="${test.data.dir}"/>
</target>
<!-- here is the version of ivy we will use. change this property to try a newer
version if you want -->
<property name="ivy.install.version" value="2.0.0-beta1" />
<property name="ivy.jar.dir" value="${user.home}/.ivy2/jars" />
<property name="ivy.jar.file" value="${ivy.jar.dir}/ivy.jar" />
<target name="download-ivy" unless="skip.download">
<mkdir dir="${ivy.jar.dir}"/>
<!-- download Ivy from web site so that it can be used even without any special installation -->
<echo message="installing ivy..."/>
<get src="http://repo1.maven.org/maven2/org/apache/ivy/ivy/${ivy.install.version}/ivy-${ivy.install.version}.jar"
dest="${ivy.jar.file}" usetimestamp="true"/>
</target>
<!-- =================================
target: install-ivy
this target is not necessary if you put ivy.jar in your ant lib directory
if you already have ivy in your ant lib, you can simply remove this
target and the dependency the 'go' target has on it
================================= -->
<target name="install-ivy" depends="download-ivy" description="--> install ivy">
<!-- try to load ivy here from local ivy dir, in case the user has not already dropped
it into ant's lib dir (note that the latter copy will always take precedence).
We will not fail as long as local lib dir exists (it may be empty) and
ivy is in at least one of ant's lib dir or the local lib dir. -->
<path id="ivy.lib.path">
<fileset dir="${ivy.jar.dir}" includes="*.jar"/>
</path>
<taskdef resource="org/apache/ivy/ant/antlib.xml"
uri="antlib:org.apache.ivy.ant" classpathref="ivy.lib.path"/>
</target>
<!-- =================================
target: clean-ivy
================================= -->
<target name="clean-ivy" description="--> clean the ivy installation">
<delete dir="${ivy.jar.dir}"/>
</target>
<target name="resolve" depends="install-ivy" description="--> retrieve dependencies with ivy">
<!-- Ivy configuration -->
<ivy:settings file="ivysettings.xml" id="ivy.instance"/>
<condition property="ivy.conf.name" value="default">
<not>
<isset property="ivy.conf.name"/>
</not>
</condition>
<echo message="Ivy conf name: ${ivy.conf.name}"/>
<echo message="ivy.local.default.root: ${ivy.local.default.root}"/>
<ivy:resolve conf="${ivy.conf.name}"/>
<ivy:retrieve conf="${ivy.conf.name}"/>
</target>
<target name="clean" description="Clean directories for build">
<delete dir="${build.dir}"/>
<delete dir="${dist.dir}"/>
</target>
<target name="compile" depends="prepare" description="Compiles Desk Share">
<antcall target="compile_apps" inheritAll="true" inheritRefs="true"/>
</target>
<macrodef name="build-app">
<attribute name="name"/>
<element name="copy-assets" optional="yes"/>
<sequential>
<mkdir dir="${build.dir}/@{name}"/>
<javac sourcepath="" srcdir="${src.dir}" destdir="${build.dir}/@{name}"
classpathref="full.classpath" optimize="${build.optimize}" verbose="${build.verbose}"
fork="${build.fork}" nowarn="${build.nowarn}" deprecation="${build.deprecation}"
debug="${debug.state}" compiler="${build.compiler}" source="${java.target_version}" target="${java.target_version}"/>
<copy-assets/>
</sequential>
</macrodef>
<target name="compile_apps" description="Build bigbluebutton apps">
<build-app name="deskshare"/>
</target>
<macrodef name="compile-jarapp">
<attribute name="name"/>
<element name="copy-assets" optional="yes"/>
<sequential>
<copy todir="${build.dir}/@{name}" file="${webapp.dir}/WEB-INF/logback-deskshare.xml" overwrite="true"/>
<jar destfile="${build.dir}/@{name}.jar">
<fileset dir="${build.dir}/@{name}">
<include name="**"/>
</fileset>
</jar>
</sequential>
</macrodef>
<target name="jar" description="Make Archive" depends="compile">
<compile-jarapp name="deskshare"/>
</target>
<macrodef name="deploy-app">
<attribute name="webapp"/>
<sequential>
<copy todir="${red5.home}/webapps">
<fileset dir="${dist.webapps.dir}"/>
</copy>
</sequential>
</macrodef>
<target name="deploy" description="Deploy deskshare into red5" depends="dist">
<delete dir="${red5.home}/webapps/deskshare"/>
<copy todir="${red5.home}/webapps">
<fileset dir="${dist.webapps.dir}"/>
</copy>
</target>
<target name="dist-archive" depends="dist" description="Create archive file for distribution">
<touch>
<fileset dir="${dist.dir}"/>
</touch>
<tar destfile="${target.tar.gz}" basedir="${dist.dir}" compression="gzip"
longfile="gnu">
<tarfileset dir="${dist.dir}" mode="755">
<include name="${dist.dir}/webapps/deskshare/**"/>
</tarfileset>
</tar>
</target>
<macrodef name="copy-app">
<attribute name="name"/>
<element name="copy-assets" optional="yes"/>
<sequential>
<mkdir dir="${dist.webapps.dir}/@{name}/WEB-INF/lib/"/>
<copy todir="${dist.webapps.dir}/@{name}/WEB-INF/lib/" file="${build.dir}/@{name}.jar" overwrite="true"/>
<copy todir="${dist.webapps.dir}/@{name}" filtering="true">
<fileset dir="${webapp.dir}">
<exclude name="**/src/**"/>
<exclude name="**/test/**"/>
<exclude name="**/lib/**"/>
</fileset>
</copy>
<!-- copy files (optional) -->
<copy-assets/>
</sequential>
</macrodef>
<macrodef name="logback">
<attribute name="webapp"/>
<sequential>
<!-- copy the logback config per webapp and associated jars -->
<copy todir="${dist.webapps.dir}/@{webapp}/WEB-INF/lib/">
<fileset dir="${lib.dir}">
<include name="slf4j-api-1.5.6.jar"/>
<include name="logback-core-0.9.14.jar"/>
<include name="logback-classic-0.9.14.jar"/>
</fileset>
</copy>
</sequential>
</macrodef>
<macrodef name="deskshare-lib">
<attribute name="webapp"/>
<sequential>
<copy todir="${dist.webapps.dir}/@{webapp}/WEB-INF/lib/">
<fileset dir="${lib.dir}">
<include name="xuggle-xuggler-*.jar"/>
<include name="xuggle-xuggler-red5-*.jar"/>
<include name="jetm-1.2.3.jar"/>
<include name="jetm-optional-1.2.3.jar"/>
<include name="spring-webmvc-2.5.6.jar"/>
<include name="commons-fileupload-1.2.1.jar"/>
<include name="commons-io-1.4.jar"/>
<include name="mina-integration-spring-1.1.7.jar"/>
</fileset>
</copy>
</sequential>
</macrodef>
<target name="dist" description="Make Binary distribution" depends="jar">
<copy-app name="deskshare">
<copy-assets>
<logback webapp="deskshare"/>
<deskshare-lib webapp="deskshare"/>
</copy-assets>
</copy-app>
</target>
<target name="test-compile" depends="jar">
<javac destdir="${test.classes.dir}"
debug="true"
includeAntRuntime="yes"
srcdir="${test.src.dir}">
<classpath refid="test.compile.classpath"/>
</javac>
<taskdef name="testng" classpathref="compile.classpath"
classname="org.testng.TestNGAntTask" />
</target>
<target name="test-ng" depends="test-compile">
<echo message="running tests"/>
<testng classpathref="test.classpath" outputDir="${test.data.dir}">
<xmlfileset dir="." includes="testng.xml"/>
<jvmarg value="-ea" />
</testng>
</target>
<target name="testng-reports" depends="test-ng">
<junitreport todir="${test.data.dir}">
<fileset dir="${test.data.dir}">
<include name="*/*.xml"/>
</fileset>
<report format="frames" todir="${test.reports.dir}"/>
</junitreport>
</target>
<target name="test" depends="test-compile">
<junit printsummary="false"
errorProperty="test.failed"
failureProperty="test.failed"
fork="${junit.fork}"
forkmode="${junit.forkmode}">
<classpath refid="test.forking.classpath" />
<formatter type="brief" usefile="false"/>
<formatter type="xml"/>
<test name="${testcase}" todir="${test.data.dir}" if="testcase"/>
<batchtest todir="${test.data.dir}" unless="testcase">
<fileset dir="${test.classes.dir}" >
<include name="**/*Test.class"/>
</fileset>
</batchtest>
</junit>
<junitreport todir="${test.data.dir}">
<fileset dir="${test.data.dir}">
<include name="TEST-*.xml"/>
</fileset>
<report format="frames" todir="${test.reports.dir}"/>
</junitreport>
<!--conditional failure -->
<fail if="test.failed">
Tests failed. Check ${test.reports.dir}
</fail>
</target>
<target name="all" depends="clean, prepare, compile, jar" description="Run all server tasks"/>
<target name="usage">
<echo message="Type ant -p for available targets"/>
</target>
<target name="diagnostics"
description="diagnostics">
<diagnostics/>
</target>
<target name="echoall">
<echoproperties/>
</target>
</project>

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<ivy-module version="1.0">
<info organisation="org.red5" module="sip" />
<configurations>
<conf name="default"/>
<conf name="java5" extends="default" description="Java 5 dependencies"/>
<conf name="test" extends="default" description="Unit testing dependencies"/>
</configurations>
<dependencies>
<!-- Logging -->
<dependency name="log4j-over-slf4j" rev="1.5.6" />
<dependency name="logback-core" rev="0.9.14" />
<dependency name="logback-classic" rev="0.9.14" />
<dependency name="slf4j-api" rev="1.5.6" />
<!-- Red5 -->
<dependency org="org/red5" name="red5" rev="0.8"/>
<!-- Spring -->
<dependency org="spring" name="spring-aop" rev="2.5.6" />
<dependency org="spring" name="spring-beans" rev="2.5.6" />
<dependency org="spring" name="spring-context" rev="2.5.6" />
<dependency org="spring" name="spring-core" rev="2.5.6" />
<dependency org="spring" name="spring-web" rev="2.5.6" />
<dependency org="spring" name="spring-webmvc" rev="2.5.6" />
<dependency org="javax.servlet" name="servlet-api" rev="2.5" />
<dependency org="org.apache.mina" name="mina-core" rev="2.0.0-M6" />
<dependency org="org.apache.mina" name="mina-integration-spring" rev="1.1.7" />
<!-- File upload -->
<dependency org="commons-fileupload" name="commons-fileupload" rev="1.2.1" />
<dependency org="commons-io" name="commons-io" rev="1.4" />
<!-- Xuggler -->
<dependency org="com/xuggle" name="xuggle-xuggler" rev="3.0.660" />
<dependency org="com/xuggle" name="xuggle-xuggler-red5" rev="3.0.662" />
<dependency org="fm/void/jetm" name="jetm" rev="1.2.3" />
<dependency org="fm/void/jetm" name="jetm-optional" rev="1.2.3" />
</dependencies>
</ivy-module>

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bbb-apps-deskshare/ivysettings.xml Normal file
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<ivysettings>
<settings defaultResolver="project_lib"/>
<!--include url="${ivy.default.settings.dir}/ivysettings-shared.xml"/-->
<!--include url="${ivy.default.settings.dir}/ivysettings-local.xml"/-->
<resolvers>
<filesystem name="local_lib">
<artifact pattern="${user.home}/.ivy2/local/[organisation]/[artifact](-[revision]).[ext]" />
<artifact pattern="${user.home}/.ivy2/local/[artifact](-[revision]).[ext]" />
</filesystem>
<chain name="project_lib" returnFirst="true">
<filesystem name="lib_dir">
<artifact pattern="${ivy.lib.dir}/[artifact](-[revision]).[type]" />
<artifact pattern="${ivy.lib.dir}/[artifact](-[revision]).[ext]" />
</filesystem>
</chain>
<chain name="remote" returnFirst="true">
<url name="googlecode">
<artifact pattern="http://red5.googlecode.com/svn/repository/[artifact](-[revision]).[ext]" />
<artifact pattern="http://red5.googlecode.com/svn/repository/[organisation]/[artifact](-[revision]).[ext]" />
</url>
<url name="blindside-repos">
<artifact pattern="http://blindside.googlecode.com/svn/repository/[artifact](-[revision]).[ext]" />
<artifact pattern="http://blindside.googlecode.com/svn/repository/[organisation]/[artifact](-[revision]).[ext]" />
</url>
<url name="maven2-central" m2compatible="true">
<artifact pattern="http://repo1.maven.org/maven2/[organisation]/[module]/[revision]/[artifact](-[revision]).[ext]" />
<artifact pattern="http://repo1.maven.org/maven2/[organisation]/[artifact]/[revision]/[artifact](-[revision]).[ext]" />
</url>
</chain>
</resolvers>
<modules>
<module organisation="com/xuggle" name="*" resolver="blindside-repos"/>
<module organisation="spring" name="*" resolver="googlecode"/>
<module organisation=".*" name="*" resolver="remote"/>
</modules>
</ivysettings>

39
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/CaptureEndEvent.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
public class CaptureEndEvent implements ICaptureEvent {
private String room;
public CaptureEndEvent(String room) {
this.room = room;
}
public String getRoom() {
return room;
}
@Override
public CaptureMessage getMessageType() {
return CaptureMessage.CAPTURE_END;
}
}

48
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/CaptureEvents.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
public enum CaptureEvents {
CAPTURE_START(0), CAPTURE_UPDATE(1), CAPTURE_END(2);
private final int event;
CaptureEvents(int event) {
this.event = event;
}
public int getEvent() {
return event;
}
@Override
public String toString() {
switch (event) {
case 0:
return "Capture Start Event";
case 1:
return "Capture Update Event";
case 2:
return "Capture End Event";
}
return "Unknown Capture Event";
}
}

26
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/CaptureMessage.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
public enum CaptureMessage {
CAPTURE_START,
CAPTURE_UPDATE,
CAPTURE_END
}

57
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/CaptureStartEvent.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
public class CaptureStartEvent implements ICaptureEvent {
private final int width;
private final int height;
private final int frameRate;
private final String room;
public CaptureStartEvent(String room, int width, int height, int frameRate) {
this.room = room;
this.width = width;
this.height = height;
this.frameRate = frameRate;
}
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
public int getFrameRate() {
return frameRate;
}
public String getRoom() {
return room;
}
@Override
public CaptureMessage getMessageType() {
return CaptureMessage.CAPTURE_START;
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.awt.image.BufferedImage;
public class CaptureUpdateEvent implements ICaptureEvent {
private final BufferedImage tile;
private final String room;
private final int width;
private final int height;
private final int x;
private final int y;
private final int position;
public CaptureUpdateEvent(BufferedImage screen, String room, int width,
int height, int x, int y, int position) {
this.tile = screen;
this.room = room;
this.width = width;
this.height = height;
this.x = x;
this.y = y;
this.position = position;
}
public BufferedImage getTile() {
return tile;
}
public String getRoom() {
return room;
}
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
public int getX() {
return x;
}
public int getY() {
return y;
}
public int getPosition() {
return position;
}
@Override
public CaptureMessage getMessageType() {
return CaptureMessage.CAPTURE_UPDATE;
}
public static CaptureUpdateEvent copy(CaptureUpdateEvent event) {
return new CaptureUpdateEvent(event.getTile(), event.getRoom(),
event.getWidth(), event.getHeight(),
event.getX(), event.getY(), event.getPosition());
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.awt.image.BufferedImage;
public class CapturedScreen {
private BufferedImage screen;
private String room;
private int width;
private int height;
private int frameRate;
public CapturedScreen(BufferedImage screen, String room, int width,
int height, int frameRate) {
super();
this.screen = screen;
this.room = room;
this.width = width;
this.height = height;
this.frameRate = frameRate;
}
public BufferedImage getScreen() {
return screen;
}
public String getRoom() {
return room;
}
public int getWidth() {
return width;
}
public int getHeight() {
return height;
}
public int getFrameRate() {
return frameRate;
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.awt.image.WritableRaster;
import java.util.HashSet;
import java.util.Set;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
public class ChangedTileProcessor {
final private Logger log = Red5LoggerFactory.getLogger(ChangedTileProcessor.class, "deskshare");
private final Executor exec = Executors.newSingleThreadExecutor();
private BlockingQueue<CaptureUpdateEvent> queue = new LinkedBlockingQueue<CaptureUpdateEvent>();
private Runnable eventHandler;
private volatile boolean handleEvent = false;
private Set<NewScreenListener> listeners = new HashSet<NewScreenListener>();
private long lastUpdate;
private BufferedImage capturedScreen;
private Graphics2D graphics;
public ChangedTileProcessor(int width, int height){
this.capturedScreen = new BufferedImage(width, height, BufferedImage.TYPE_3BYTE_BGR);
this.graphics = this.capturedScreen.createGraphics();
lastUpdate = System.currentTimeMillis();
}
public void appendTile(BufferedImage tile, int x, int y){
graphics.drawImage(tile, x, y, null);
}
public void stop() {
handleEvent = false;
}
public void start() {
handleEvent = true;
eventHandler = new Runnable() {
public void run() {
while (handleEvent) {
try {
CaptureUpdateEvent event = queue.take();
handleCaptureEvent(event);
} catch (InterruptedException e) {
log.warn("InterruptedExeption while taking event.");
}
}
}
};
exec.execute(eventHandler);
}
private void handleCaptureEvent(CaptureUpdateEvent event) {
BufferedImage image = event.getTile();
appendTile(image, event.getX(), event.getY());
long now = System.currentTimeMillis();
if ((now - lastUpdate) > 500) {
log.debug("Creating new screen");
notifyNewScreenListener(getNewScreen());
lastUpdate = now;
}
}
private BufferedImage getNewScreen() {
/**
* Some kind of double-buffering (richard - aug 20, 2009)
* Make a true copy of the captured screen. BufferedImage.getSubImage just returns
* a reference to the capturedScreen, so when the tiles get updated we see the tiling
* on the client. Creating a copy prevents this and provides a cleaner experience.
*/
WritableRaster raster = capturedScreen.copyData( null );
BufferedImage copy = new BufferedImage( capturedScreen.getColorModel(), raster, capturedScreen.isAlphaPremultiplied(), null );
return copy;
}
public void accept(CaptureUpdateEvent event) {
try {
// Make a copy so we can process safely on our own thread.
CaptureUpdateEvent copy = CaptureUpdateEvent.copy(event);
queue.put(copy);
} catch (InterruptedException e) {
log.warn("InterruptedException while putting event into queue.");
}
}
public void addNewScreenListener(NewScreenListener listener) {
listeners.add(listener);
}
public void removeListener(NewScreenListener listener) {
listeners.remove(listener);
}
private void notifyNewScreenListener(BufferedImage newScreen) {
for (NewScreenListener ctl : listeners) {
ctl.onNewScreen(newScreen);
}
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.util.List;
import org.bigbluebutton.deskshare.socket.DeskShareServer;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.adapter.MultiThreadedApplicationAdapter;
import org.red5.server.api.IBandwidthConfigure;
import org.red5.server.api.IConnection;
import org.red5.server.api.IScope;
import org.red5.server.api.Red5;
import org.red5.server.api.stream.IServerStream;
import org.red5.server.api.stream.IStreamCapableConnection;
import org.red5.server.api.stream.support.SimpleConnectionBWConfig;
import org.slf4j.Logger;
/**
* The Application class is the main class of the deskShare server side
* @author Snap
*
*/
public class DeskShareApplication extends MultiThreadedApplicationAdapter {
private static Logger log = Red5LoggerFactory.getLogger(DeskShareApplication.class, "deskshare");
private IScope appScope;
private IServerStream serverStream;
private DeskShareServer deskShareServer;
/**
* Runs when the application is first started. Sets up relevant objects to listen to the deskShare client
* and publish the stream on red5
*/
public boolean appStart(IScope app){
log.info("deskShare appStart");
System.out.println("deskShare appStart");
this.appScope = app;
deskShareServer.start();
return true;
}
public boolean appConnect(IConnection conn, Object[] params){
log.info("deskShare appConnect to scope " + conn.getScope().getContext().toString());
System.out.println("deskShare appConnect to scope " + conn.getScope().getContextPath());
measureBandwidth(conn);
if (conn instanceof IStreamCapableConnection){
IStreamCapableConnection streamConn = (IStreamCapableConnection) conn;
SimpleConnectionBWConfig bwConfig = new SimpleConnectionBWConfig();
bwConfig.getChannelBandwidth()[IBandwidthConfigure.OVERALL_CHANNEL] =
1024*1024;
bwConfig.getChannelInitialBurst()[IBandwidthConfigure.OVERALL_CHANNEL] =
128*1024;
streamConn.setBandwidthConfigure(bwConfig);
}
return super.appConnect(conn, params);
}
public void appDisconnect(IConnection conn){
log.info("deskShare appDisconnect");
if (getAppScope() == conn.getScope() && serverStream != null){
serverStream.close();
}
super.appDisconnect(conn);
}
public List<String> getStreams(){
IConnection conn = Red5.getConnectionLocal();
return getBroadcastStreamNames(conn.getScope());
}
/**
* @return the appScope
*/
public IScope getAppScope() {
return appScope;
}
/**
* Called when the application is stopped
*/
public void appStop(){
deskShareServer.stop();
}
public void setDeskShareServer(DeskShareServer deskShareServer) {
this.deskShareServer = deskShareServer;
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
/**
* The constants for this application
* @author Snap
*
*/
public class DeskShareConstants {
public static final int PORT = 1026;
public static final int BIT_RATE = 25000;
public static final int BIT_RATE_TOLERANCE = 50000;
public static final int NUM_PICTURES_IN_GROUP = 1;
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.api.Red5;
import org.slf4j.Logger;
public class DeskShareService {
final private Logger log = Red5LoggerFactory.getLogger(DeskShareService.class, "deskshare");
private StreamerGateway sg;
public boolean checkIfStreamIsPublishing(){
String roomName = Red5.getConnectionLocal().getScope().getName();
log.debug("Checking if {} is streaming.", roomName);
return sg.isStreaming(roomName);
}
public int getVideoWidth(){
String roomName = Red5.getConnectionLocal().getScope().getName();
log.debug("Getting video width for {}.", roomName);
return sg.getRoomVideoWidth(roomName);
}
public int getVideoHeight(){
String roomName = Red5.getConnectionLocal().getScope().getName();
log.debug("Getting video height for {}.", roomName);
return sg.getRoomVideoHeight(roomName);
}
public void setStreamerGateway(StreamerGateway sg) {
this.sg = sg;
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.util.concurrent.BlockingQueue;
import java.util.concurrent.Executor;
import java.util.concurrent.Executors;
import java.util.concurrent.LinkedBlockingQueue;
import javax.imageio.ImageIO;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.api.IContext;
import org.red5.server.api.IScope;
import org.red5.server.net.rtmp.event.IRTMPEvent;
import org.red5.server.stream.BroadcastScope;
import org.red5.server.stream.IBroadcastScope;
import org.red5.server.stream.IProviderService;
import org.slf4j.Logger;
import com.xuggle.red5.io.BroadcastStream;
import com.xuggle.red5.io.IRTMPEventIOHandler;
import com.xuggle.red5.io.Red5HandlerFactory;
import com.xuggle.red5.io.Red5Message;
import com.xuggle.xuggler.ICodec;
import com.xuggle.xuggler.IContainer;
import com.xuggle.xuggler.IContainerFormat;
import com.xuggle.xuggler.IPacket;
import com.xuggle.xuggler.IPixelFormat;
import com.xuggle.xuggler.IRational;
import com.xuggle.xuggler.ISimpleMediaFile;
import com.xuggle.xuggler.IStream;
import com.xuggle.xuggler.IStreamCoder;
import com.xuggle.xuggler.IVideoPicture;
import com.xuggle.xuggler.IVideoResampler;
import com.xuggle.xuggler.SimpleMediaFile;
import com.xuggle.xuggler.video.ConverterFactory;
import com.xuggle.xuggler.video.IConverter;
/**
* The DeskShareStream class publishes captured video to a red5 stream.
* @author Snap
*
*/
public class DeskShareStream implements NewScreenListener {
final private Logger log = Red5LoggerFactory.getLogger(DeskShareStream.class, "deskshare");
private BlockingQueue<BufferedImage> screenQueue = new LinkedBlockingQueue<BufferedImage>();
private final Executor exec = Executors.newSingleThreadExecutor();
private Runnable capturedScreenSender;
private volatile boolean sendCapturedScreen = false;
private IStreamCoder outStreamCoder;
private BroadcastStream broadcastStream;
private IContainer outContainer;
private IStream outStream;
private ChangedTileProcessor changedTileProcessor;
private static final Red5HandlerFactory factory = Red5HandlerFactory.getFactory();
private final IRTMPEventIOHandler outputHandler;
private long timestamp = 0, frameNumber = 0;
private int width, height, frameRate, timestampBase;
private int encodingWidth, encodingHeight;
private String outStreamName;
private IScope scope;
public static final int LARGER_DIMENSION = 1280;
/**
* The default constructor
* The stream which gets published by the streamer has the same name as the scope. One stream allowed per room
*/
public DeskShareStream(IScope scope, String streamName, int width, int height, int frameRate) {
this.scope = scope;
scope.setName(streamName);
this.outStreamName = streamName;
this.width = width;
this.height = height;
this.frameRate = frameRate;
this.timestampBase = 1000000 / this.frameRate;
this.changedTileProcessor = new ChangedTileProcessor(width, height);
//encodingHeight = 500;
//encodingWidth = 800;
calculateEncodingDimensions();
changedTileProcessor.addNewScreenListener(this);
changedTileProcessor.start();
outputHandler = new IRTMPEventIOHandler(){
public Red5Message read() throws InterruptedException{
return null;
}
public void write(Red5Message message) throws InterruptedException{
log.debug("Handler writing message to stream " + outStreamName);
try{
IRTMPEvent event = message.getData();
if (event != null){
broadcastStream.dispatchEvent(event);
event.release();
}
} finally{
}
}
};
}
/**
* Calculates the dimensions of the encoded video, in case the video is too large and needs to be scaled
*/
public void calculateEncodingDimensions(){
if (width < LARGER_DIMENSION && height< LARGER_DIMENSION){
encodingHeight = height;
encodingWidth = width;
return;
}
int biggerDimension, smallerDimension;
double ratio;
if (width > height){
biggerDimension = width;
smallerDimension = height;
} else{
biggerDimension = height;
smallerDimension = width;
}
ratio = (double)biggerDimension/(double)smallerDimension;
System.out.println("ration = " + ratio);
if (width > height){
encodingWidth = LARGER_DIMENSION;
encodingHeight = (int) Math.round(LARGER_DIMENSION/ratio);
} else{
encodingHeight = LARGER_DIMENSION;
encodingWidth = (int) Math.round(LARGER_DIMENSION/ratio);
}
//System.out.println("widht: " + encodingWidth + " ,height: " + encodingHeight);
}
public void stop() {
sendCapturedScreen = false;
streamEnded();
changedTileProcessor.stop();
}
public void start() {
startPublishing(scope);
setupStreams();
sendCapturedScreen = true;
log.debug("Starting stream {}", outStreamName);
capturedScreenSender = new Runnable() {
public void run() {
while (sendCapturedScreen) {
try {
log.debug("ScreenQueue size " + screenQueue.size());
BufferedImage newScreen = screenQueue.take();
sendCapturedScreen(newScreen);
} catch (InterruptedException e) {
log.warn("InterruptedExeption while taking event.");
}
}
}
};
exec.execute(capturedScreenSender);
}
public void accept(CaptureUpdateEvent event) {
changedTileProcessor.accept(event);
}
private void sendCapturedScreen(BufferedImage screen) {
log.debug("Sending screen captured - built aug 20 12:39PM");
// try {
// ImageIO.write(screen, "jpg", new File("/tmp/partil.jpg"));
// } catch (IOException e1) {
// // TODO Auto-generated catch block
// e1.printStackTrace();
// }
IPacket packet = IPacket.make();
IConverter converter = null;
IVideoResampler resampler = IVideoResampler.make(
encodingWidth, encodingHeight, IPixelFormat.Type.YUV420P,
width, height, IPixelFormat.Type.BGR24);
try {
converter = ConverterFactory.createConverter(screen, IPixelFormat.Type.BGR24);
} catch(UnsupportedOperationException e){
log.error("could not create converter");
}
IVideoPicture inFrame = converter.toPicture(screen, timestamp);
IVideoPicture outFrame = IVideoPicture.make(IPixelFormat.Type.YUV420P, encodingWidth, encodingHeight);
resampler.resample(outFrame, inFrame);
log.debug(outFrame.getPixelType().toString());
timestamp += timestampBase;
frameNumber ++;
outFrame.setQuality(0);
int retval = outStreamCoder.encodeVideo(packet, outFrame, 0);
if (retval < 0)
throw new RuntimeException("could not encode video");
if (packet.isComplete()){
retval = outContainer.writePacket(packet, false);
if (retval < 0)
throw new RuntimeException("could not save packet to container");
}
outFrame.delete();
outFrame = null;
converter = null;
}
private void streamEnded() {
broadcastStream.stop();
broadcastStream.close();
int retval = outContainer.writeTrailer();
if (retval < 0)
throw new RuntimeException("Could not write trailer to output file");
log.debug("stopping and closing stream {}", outStreamName);
}
/**
* Starts outputting captured video to a red5 stream
* @param aScope
*/
synchronized private void startPublishing(IScope aScope){
log.debug("started publishing stream in " + aScope.getName());
broadcastStream = new BroadcastStream(outStreamName);
broadcastStream.setPublishedName(outStreamName);
broadcastStream.setScope(aScope);
IContext context = aScope.getContext();
IProviderService providerService = (IProviderService) context.getBean(IProviderService.BEAN_NAME);
if (providerService.registerBroadcastStream(aScope, outStreamName, broadcastStream)){
IBroadcastScope bScope = (BroadcastScope) providerService.getLiveProviderInput(aScope, outStreamName, true);
bScope.setAttribute(IBroadcastScope.STREAM_ATTRIBUTE, broadcastStream);
} else{
log.error("could not register broadcast stream");
throw new RuntimeException("could not register broadcast stream");
}
broadcastStream.start();
}
/**
* Sets up Xuggler containers & streams
*/
private void setupStreams(){
log.debug("Setting up streams: {}", broadcastStream.getName());
String outputURL = Red5HandlerFactory.DEFAULT_PROTOCOL +":"+ broadcastStream.getName();
ICodec videoCodec = ICodec.findEncodingCodec(ICodec.ID.CODEC_ID_FLV1);
ISimpleMediaFile outInfo = new SimpleMediaFile();
outInfo.setURL(outputURL);
outInfo.setHasVideo(true);
outInfo.setHasAudio(false);
outInfo.setVideoWidth(encodingWidth);
outInfo.setVideoHeight(encodingHeight);
outInfo.setVideoBitRate(DeskShareConstants.BIT_RATE);
outInfo.setVideoPixelFormat(IPixelFormat.Type.YUV420P);
outInfo.setVideoNumPicturesInGroupOfPictures(DeskShareConstants.NUM_PICTURES_IN_GROUP);
outInfo.setVideoCodec(ICodec.ID.CODEC_ID_FLV1);
outInfo.setVideoGlobalQuality(0);
factory.registerStream(outputHandler, outInfo);
outContainer = IContainer.make();
IContainerFormat outFormat = IContainerFormat.make();
outFormat.setOutputFormat("flv", outputURL, null);
int retval = outContainer.open(outputURL, IContainer.Type.WRITE, outFormat);
if (retval <0){
log.error("could not open output container");
throw new RuntimeException("could not open output file");
}
log.debug("Output container is open.");
outStream = outContainer.addNewStream(0);
outStreamCoder = outStream.getStreamCoder();
outStreamCoder.setNumPicturesInGroupOfPictures(DeskShareConstants.NUM_PICTURES_IN_GROUP);
outStreamCoder.setCodec(videoCodec);
outStreamCoder.setBitRate(DeskShareConstants.BIT_RATE);
outStreamCoder.setBitRateTolerance(DeskShareConstants.BIT_RATE_TOLERANCE);
outStreamCoder.setPixelType(IPixelFormat.Type.YUV420P);
outStreamCoder.setHeight(encodingHeight);
outStreamCoder.setWidth(encodingWidth);
outStreamCoder.setFlag(IStreamCoder.Flags.FLAG_QSCALE, true);
outStreamCoder.setGlobalQuality(0);
IRational frameRate = IRational.make(this.frameRate,1);
outStreamCoder.setFrameRate(frameRate);
IRational timeBase = IRational.make(frameRate.getDenominator(), frameRate.getNumerator());
outStreamCoder.setTimeBase(timeBase);
frameRate = null;
retval = outStreamCoder.open();
if (retval <0)
throw new RuntimeException("could not open input decoder");
retval = outContainer.writeHeader();
if (retval <0) {
log.error("could not write file header");
throw new RuntimeException("could not write file header");
}
}
public int getWidth() {
return encodingWidth;
}
public int getHeight() {
return encodingHeight;
}
public IScope getScope() {
return scope;
}
@Override
public void onNewScreen(BufferedImage newScreen) {
try {
screenQueue.put(newScreen);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}

25
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/ICaptureEvent.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
public interface ICaptureEvent {
public CaptureMessage getMessageType();
}

27
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.awt.image.BufferedImage;
public interface NewScreenListener {
public void onNewScreen(BufferedImage newScreen);
}

52
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.api.IScope;
import org.slf4j.Logger;
public class StreamFactory {
final private Logger log = Red5LoggerFactory.getLogger(StreamFactory.class, "deskshare");
private DeskShareApplication app;
public DeskShareStream createStream(CaptureStartEvent event) {
String room = event.getRoom();
int width = event.getWidth();
int height = event.getHeight();
int frameRate = event.getFrameRate();
IScope scope = app.getAppScope().getScope(room);
log.debug("Created stream {}", scope.getName());
return new DeskShareStream(scope, room, width, height, frameRate);
}
public void setDeskShareApplication(DeskShareApplication app) {
this.app = app;
if (app == null) {
log.error("DeskShareApplication is NULL!!!");
} else {
log.debug("DeskShareApplication is NOT NULL!!!");
}
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.ConcurrentHashMap;
import org.red5.logging.Red5LoggerFactory;
import org.red5.server.api.so.ISharedObject;
import org.slf4j.Logger;
public class StreamerGateway {
final private Logger log = Red5LoggerFactory.getLogger(StreamerGateway.class, "deskshare");
private final Map<String, DeskShareStream> streamsMap;
private StreamFactory streamFactory;
private DeskShareApplication deskShareApp;
public StreamerGateway() {
streamsMap = new ConcurrentHashMap<String, DeskShareStream>();
}
public void onCaptureStartEvent(CaptureStartEvent event) {
log.debug("Creating stream " + event.getRoom());
DeskShareStream stream = streamFactory.createStream(event);
streamsMap.put(event.getRoom(), stream);
stream.start();
//notify the clients in the room that the stream has now started broadcasting.
ISharedObject deskSO = deskShareApp.getSharedObject(stream.getScope(), "deskSO");
deskSO.sendMessage("appletStarted" , new ArrayList<Object>());
}
public void onCaptureEndEvent(CaptureEndEvent event) {
DeskShareStream ds = streamsMap.remove(event.getRoom());
if (ds != null) {
ds.stop();
ds = null;
}
}
public void onCaptureEvent(CaptureUpdateEvent event) {
DeskShareStream ds = streamsMap.get(event.getRoom());
if (ds != null) {
ds.accept(event);
}
}
public boolean isStreaming(String room){
DeskShareStream ds = streamsMap.get(room);
if (ds != null) {
return true;
}
return false;
}
public int getRoomVideoWidth(String room){
DeskShareStream ds = streamsMap.get(room);
if (ds != null) {
return ds.getWidth();
}
return 0;
}
public int getRoomVideoHeight(String room){
DeskShareStream ds = streamsMap.get(room);
if (ds != null) {
return ds.getHeight();
}
return 0;
}
public void setStreamFactory(StreamFactory sf) {
this.streamFactory = sf;
}
public void setDeskShareApplication(DeskShareApplication app) {
this.deskShareApp = app;
}
}

187
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.servlet;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.InputStream;
import javax.imageio.ImageIO;
import javax.servlet.ServletContext;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.bigbluebutton.deskshare.CaptureEndEvent;
import org.bigbluebutton.deskshare.CaptureEvents;
import org.bigbluebutton.deskshare.CaptureUpdateEvent;
import org.bigbluebutton.deskshare.CaptureStartEvent;
import org.bigbluebutton.deskshare.CapturedScreen;
import org.bigbluebutton.deskshare.StreamerGateway;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
import org.springframework.context.ApplicationContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.multiaction.MultiActionController;
public class TunnelController extends MultiActionController {
private static Logger log = Red5LoggerFactory.getLogger(TunnelController.class, "deskshare");
private StreamerGateway streamerGateway;
private boolean hasGateway = false;
public ModelAndView screenCaptureHandler(HttpServletRequest request, HttpServletResponse response) throws Exception {
String event = request.getParameterValues("event")[0];
System.out.println("Got screenCaptureStart request for event " + event);
int captureRequest = Integer.valueOf(request.getParameterValues("event")[0]).intValue();
if (CaptureEvents.CAPTURE_START.getEvent() == captureRequest) {
handleCaptureStartRequest(request, response);
} else if (CaptureEvents.CAPTURE_UPDATE.getEvent() == captureRequest) {
handleCaptureUpdateRequest(request, response);
} else if (CaptureEvents.CAPTURE_END.getEvent() == captureRequest) {
handleCaptureEndRequest(request, response);
} else {
log.debug("Cannot handle screen capture event " + captureRequest);
System.out.println("Cannot handle screen capture event " + captureRequest);
}
return null;
}
private void handleCaptureStartRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
String room = request.getParameterValues("room")[0];
log.warn("Got screenCaptureStart request for room {}", room);
String videoInfo = request.getParameterValues("videoInfo")[0];
log.warn("Received image from videoInfo {}", videoInfo);
String[] screenDimensions = videoInfo.split("x");
int width = Integer.parseInt(screenDimensions[0]);
int height = Integer.parseInt(screenDimensions[1]);
int frameRate = Integer.parseInt(screenDimensions[2]);
if (! hasGateway) {
streamerGateway = getStreamerGateway();
hasGateway = true;
}
CaptureStartEvent event = new CaptureStartEvent(room, width, height, frameRate);
streamerGateway.onCaptureStartEvent(event);
}
private void handleCaptureUpdateRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
MultipartHttpServletRequest multipartRequest = (MultipartHttpServletRequest) request;
// MultipartFile is a copy of file in memory, not in file system
MultipartFile multipartFile = multipartRequest.getFile("tile");
byte[] tile = multipartFile.getBytes();
InputStream imageData = new ByteArrayInputStream(tile);
//re-Create a BufferedImage we received over the network
BufferedImage image = ImageIO.read(imageData);
log.debug("Received tile size {}", tile.length);
String room = request.getParameterValues("room")[0];
log.debug("Received image from room {}", room);
String tileInfo = request.getParameterValues("tileInfo")[0];
log.debug("Received image from tileInfo {}", tileInfo);
String[] tileDesc = tileInfo.split("x");
int width = Integer.parseInt(tileDesc[0]);
int height = Integer.parseInt(tileDesc[1]);
int x = Integer.parseInt(tileDesc[2]);
int y = Integer.parseInt(tileDesc[3]);
int pos = Integer.parseInt(tileDesc[4]);
if (! hasGateway) {
streamerGateway = getStreamerGateway();
hasGateway = true;
}
CaptureUpdateEvent event = new CaptureUpdateEvent(image, room, width, height, x, y, pos);
streamerGateway.onCaptureEvent(event);
}
private void handleCaptureEndRequest(HttpServletRequest request, HttpServletResponse response) throws Exception {
String room = request.getParameterValues("room")[0];
log.warn("Got screenCaptureEnd request for room {}", room);
if (! hasGateway) {
streamerGateway = getStreamerGateway();
hasGateway = true;
}
CaptureEndEvent event = new CaptureEndEvent(room);
streamerGateway.onCaptureEndEvent(event);
}
private void handleCaptureStartRequest() {
}
private void handleCaptureUpdateRequest() {
}
private void handleCaptureEndRequest() {
}
private void sendCaptureEndEvent(String room) {
streamerGateway.onCaptureEndEvent(new CaptureEndEvent(room));
}
private void sendCaptureEvent(CapturedScreen cs) {
// streamerGateway.onCaptureEvent(new CaptureUpdateEvent(cs));
}
private void sendCaptureStartEvent(CapturedScreen cs) {
// streamerGateway.onCaptureStartEvent(new CaptureStartEvent(cs));
}
private StreamerGateway getStreamerGateway() {
//Get the servlet context
ServletContext ctx = getServletContext();
log.info("Got the servlet context: {}", ctx);
//Grab a reference to the application context
ApplicationContext appCtx = (ApplicationContext) ctx.getAttribute(WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
log.info("Got the application context: {}", appCtx);
//Get the bean holding the parameter
StreamerGateway streamerGateway = (StreamerGateway) appCtx.getBean("streamerGateway");
if (streamerGateway != null) {
log.info("Got the streamerGateway context: {}", appCtx);
}
return streamerGateway;
}
}

96
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/DebugScreenCaptureMessageHandler.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;
import org.bigbluebutton.deskshare.CaptureEndEvent;
import org.bigbluebutton.deskshare.CaptureUpdateEvent;
import org.bigbluebutton.deskshare.CaptureStartEvent;
import org.bigbluebutton.deskshare.CapturedScreen;
import org.bigbluebutton.deskshare.StreamerGateway;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
public class DebugScreenCaptureMessageHandler extends IoHandlerAdapter {
final private Logger log = Red5LoggerFactory.getLogger(DebugScreenCaptureMessageHandler.class, "deskshare");
@Override
public void exceptionCaught( IoSession session, Throwable cause ) throws Exception
{
log.warn(cause.toString());
cause.printStackTrace();
}
@Override
public void messageReceived( IoSession session, Object message ) throws Exception
{
log.debug("Message Received " + (String) message);
/*
CapturedScreen cs = (CapturedScreen) message;
String room = cs.getRoom();
log.debug("Got room {}", room);
if (session.containsAttribute("room")) {
sendCaptureEvent(cs);
} else {
session.setAttribute("room", room);
sendCaptureStartEvent(cs);
}
*/
}
@Override
public void sessionIdle( IoSession session, IdleStatus status ) throws Exception
{
log.debug( "IDLE " + session.getIdleCount( status ));
}
@Override
public void sessionCreated(IoSession session) throws Exception {
log.debug("Session Created");
}
@Override
public void sessionOpened(IoSession session) throws Exception {
log.debug("Session Opened.");
}
@Override
public void sessionClosed(IoSession session) throws Exception {
log.debug("Session Closed.");
String room = (String) session.getAttribute("room");
sendCaptureEndEvent(room);
}
private void sendCaptureEndEvent(String room) {
}
private void sendCaptureEvent(CapturedScreen cs) {
}
private void sendCaptureStartEvent(CapturedScreen cs) {
}
}

64
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/DeskShareServer.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import java.io.IOException;
import java.net.InetSocketAddress;
import org.apache.mina.core.service.IoAcceptor;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
public class DeskShareServer {
final private Logger log = Red5LoggerFactory.getLogger(DeskShareServer.class, "deskshare");
private static final int PORT = 9123;
private IoHandlerAdapter screenCaptureHandler;
private IoAcceptor acceptor;
public void start()
{
acceptor = new NioSocketAcceptor();
acceptor.getFilterChain().addLast( "codec", new ProtocolCodecFilter(new ScreenCaptureProtocolCodecFactory()));
acceptor.setHandler( screenCaptureHandler);
acceptor.getSessionConfig().setIdleTime( IdleStatus.BOTH_IDLE, 10 );
try {
acceptor.bind( new InetSocketAddress(PORT) );
} catch (IOException e) {
log.error("IOException while binding to port {}", PORT);
}
}
public void setScreenCaptureHandler(IoHandlerAdapter screenCaptureHandler) {
this.screenCaptureHandler = screenCaptureHandler;
}
public void stop() {
acceptor.unbind();
acceptor.dispose();
}
}

34
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/DeskShareServerMain.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
public class DeskShareServerMain {
public static void main(String[] args) {
DeskShareServer server = new DeskShareServer();
server.setScreenCaptureHandler(new DebugScreenCaptureMessageHandler());
server.start();
System.out.println("Server starting");
while (true) {}
}
}

39
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/NullProtocolEncoder.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolEncoder;
import org.apache.mina.filter.codec.ProtocolEncoderOutput;
public class NullProtocolEncoder implements ProtocolEncoder {
public void dispose(IoSession in) throws Exception {
// TODO Auto-generated method stub
}
public void encode(IoSession session, Object message, ProtocolEncoderOutput out)
throws Exception {
// TODO Auto-generated method stub
}
}

98
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/ScreenCaptureMessageHandler.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import org.apache.mina.core.service.IoHandlerAdapter;
import org.apache.mina.core.session.IdleStatus;
import org.apache.mina.core.session.IoSession;
import org.bigbluebutton.deskshare.CaptureEndEvent;
import org.bigbluebutton.deskshare.CaptureMessage;
import org.bigbluebutton.deskshare.CaptureUpdateEvent;
import org.bigbluebutton.deskshare.CaptureStartEvent;
import org.bigbluebutton.deskshare.ICaptureEvent;
import org.bigbluebutton.deskshare.StreamerGateway;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
public class ScreenCaptureMessageHandler extends IoHandlerAdapter {
final private Logger log = Red5LoggerFactory.getLogger(ScreenCaptureMessageHandler.class, "deskshare");
private StreamerGateway streamerGateway;
@Override
public void exceptionCaught( IoSession session, Throwable cause ) throws Exception
{
log.warn(cause.toString() + " \n " + cause.getMessage());
cause.printStackTrace();
}
@Override
public void messageReceived( IoSession session, Object message ) throws Exception
{
CaptureMessage msgType = ((ICaptureEvent) message).getMessageType();
if (msgType == CaptureMessage.CAPTURE_START) {
log.debug("Received CAPTURE_START");
sendCaptureStartEvent((CaptureStartEvent) message);
} else if (msgType == CaptureMessage.CAPTURE_UPDATE) {
// log.debug("Received CAPTURE_UPDATE");
sendCaptureUpdateEvent((CaptureUpdateEvent) message);
}
}
@Override
public void sessionIdle( IoSession session, IdleStatus status ) throws Exception
{
log.debug( "IDLE " + session.getIdleCount( status ));
}
@Override
public void sessionCreated(IoSession session) throws Exception {
log.debug("Session Created");
}
@Override
public void sessionOpened(IoSession session) throws Exception {
log.debug("Session Opened.");
}
@Override
public void sessionClosed(IoSession session) throws Exception {
log.debug("Session Closed.");
String room = (String) session.getAttribute("ROOM");
sendCaptureEndEvent(room);
}
private void sendCaptureEndEvent(String room) {
streamerGateway.onCaptureEndEvent(new CaptureEndEvent(room));
}
private void sendCaptureUpdateEvent(CaptureUpdateEvent event) {
streamerGateway.onCaptureEvent(event);
}
private void sendCaptureStartEvent(CaptureStartEvent event) {
streamerGateway.onCaptureStartEvent(event);
}
public void setStreamerGateway(StreamerGateway sg) {
streamerGateway = sg;
}
}

43
bbb-apps-deskshare/src/main/java/org/bigbluebutton/deskshare/socket/ScreenCaptureProtocolCodecFactory.java Normal file
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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.ProtocolCodecFactory;
import org.apache.mina.filter.codec.ProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolEncoder;
public class ScreenCaptureProtocolCodecFactory implements ProtocolCodecFactory {
private ProtocolEncoder encoder;
private ProtocolDecoder decoder;
public ScreenCaptureProtocolCodecFactory() {
encoder = new NullProtocolEncoder();
decoder = new ScreenCaptureProtocolDecoder();
}
public ProtocolEncoder getEncoder(IoSession ioSession) throws Exception {
return encoder;
}
public ProtocolDecoder getDecoder(IoSession ioSession) throws Exception {
return decoder;
}
}

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/*
* BigBlueButton - http://www.bigbluebutton.org
*
* Copyright (c) 2008-2009 by respective authors (see below). All rights reserved.
*
* BigBlueButton is free software; you can redistribute it and/or modify it under the
* terms of the GNU Affero General Public License as published by the Free Software
* Foundation; either version 3 of the License, or (at your option) any later
* version.
*
* BigBlueButton 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License along
* with BigBlueButton; if not, If not, see <http://www.gnu.org/licenses/>.
*
* $Id: $
*/
package org.bigbluebutton.deskshare.socket;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.nio.charset.CharacterCodingException;
import java.nio.charset.Charset;
import javax.imageio.ImageIO;
import org.apache.mina.core.buffer.IoBuffer;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.filter.codec.CumulativeProtocolDecoder;
import org.apache.mina.filter.codec.ProtocolDecoderOutput;
import org.bigbluebutton.deskshare.CaptureStartEvent;
import org.bigbluebutton.deskshare.CaptureUpdateEvent;
import org.bigbluebutton.deskshare.CapturedScreen;
import org.red5.logging.Red5LoggerFactory;
import org.slf4j.Logger;
public class ScreenCaptureProtocolDecoder extends CumulativeProtocolDecoder {
final private Logger log = Red5LoggerFactory.getLogger(ScreenCaptureProtocolDecoder.class, "deskshare");
private static final String ROOM = "ROOM";
private static final String VIDEO_INFO = "VIDEO_INFO";
private static final String TILE_INFO = "TILE_INFO";
private static final int CAPTURE_START = 0;
private static final int CAPTURE_UPDATE = 1;
private static final int CAPTURE_END = 2;
private static final String MESSAGE_TYPE = "MESSAGE_TYPE";
private static final String TILE_IMAGE = "TILE_IMAGE";
protected boolean doDecode(IoSession session, IoBuffer in, ProtocolDecoderOutput out) throws Exception {
if (session.containsAttribute(MESSAGE_TYPE)) {
Integer messageType = (Integer) session.getAttribute(MESSAGE_TYPE);
switch (messageType.intValue()) {
case CAPTURE_START:
return decodeCaptureStart(session, in, out);
case CAPTURE_UPDATE:
return decodeCaptureUpdate(session, in, out);
case CAPTURE_END:
// decodeCaptureEnd(session, in, out);
break;
}
} else {
if (in.remaining() < 20) return false;
int message = in.getInt();
// log.debug("Got message " + message);
session.setAttribute(MESSAGE_TYPE, new Integer(message));
return true;
}
return false;
}
private boolean decodeCaptureStart(IoSession session, IoBuffer in, ProtocolDecoderOutput out) {
if (session.containsAttribute(ROOM)) {
if (decodeVideoInfo(session, in)) {
sendCaptureStartMessage(session, out);
return true;
}
} else {
decodeRoom(session, in);
}
return false;
}
private void decodeRoom(IoSession session, IoBuffer in) {
if (in.remaining() < 200) return;
int len = in.getInt();
String room = decodeString(len, in);
if (room != "") {
session.setAttribute(ROOM, room);
}
}
private boolean decodeVideoInfo(IoSession session, IoBuffer in) {
if (in.remaining() < 200) return false;
int len = in.getInt();
String videoInfo = decodeString(len, in);
if (videoInfo != "") {
session.setAttribute(VIDEO_INFO, videoInfo);
return true;
}
return false;
}
private String decodeString(int length, IoBuffer in) {
try {
if (in.remaining() >= length) {
return in.getString(length, Charset.forName( "UTF-8" ).newDecoder());
}
} catch (CharacterCodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return "";
}
private void sendCaptureStartMessage(IoSession session, ProtocolDecoderOutput out) {
String room = (String) session.getAttribute(ROOM);
String videoInfo = (String) session.getAttribute(VIDEO_INFO);
log.debug("Room " + room + " videoInfo " + videoInfo);
//Get the screen dimensions, i.e. the resolution of the video we need to create
String[] screenDimensions = videoInfo.split("x");
int width = Integer.parseInt(screenDimensions[0]);
int height = Integer.parseInt(screenDimensions[1]);
int frameRate = Integer.parseInt(screenDimensions[2]);
CaptureStartEvent cse = new CaptureStartEvent(room, width, height, frameRate);
out.write(cse);
clearMessage(session);
}
private boolean decodeCaptureUpdate(IoSession session, IoBuffer in, ProtocolDecoderOutput out) {
if (! session.containsAttribute(TILE_INFO)) {
return decodeTileInfo(session, in);
} else {
if (decodeTile(session, in)) {
sendCaptureUpdateMessage(session, out);
return true;
}
}
return false;
}
private boolean decodeTileInfo(IoSession session, IoBuffer in) {
if (in.remaining() < 200) return false;
int len = in.getInt();
String tileInfo = decodeString(len, in);
if (tileInfo != "") {
session.setAttribute(TILE_INFO, tileInfo);
return true;
}
return true;
}
private boolean decodeTile(IoSession session, IoBuffer in) {
if (in.remaining() < 40) return false;
int start = in.position();
int tileLength = in.getInt();
if (in.remaining() >= tileLength) {
byte[] bytes = new byte[tileLength];
// log.debug("Reading image with length {}", bytes.length);
in.get(bytes);
ByteArrayInputStream bais = new ByteArrayInputStream(bytes);
try {
BufferedImage image = ImageIO.read(bais);
session.setAttribute(TILE_IMAGE, image);
} catch (IOException e) {
log.error("Failed to get captured screen for room ");
}
return true;
}
// log.debug("Can't process image yet . " + tileLength);
in.position(start);
return false;
}
private void sendCaptureUpdateMessage(IoSession session, ProtocolDecoderOutput out) {
String room = (String) session.getAttribute(ROOM);
String tileInfo = (String) session.getAttribute(TILE_INFO);
// log.debug("TILE INFO " + tileInfo);
//Get the tile dimensions, i.e. the resolution of the video we need to create
String[] tileDim = tileInfo.split("x");
int width = Integer.parseInt(tileDim[0]);
int height = Integer.parseInt(tileDim[1]);
int x = Integer.parseInt(tileDim[2]);
int y = Integer.parseInt(tileDim[3]);
int pos = Integer.parseInt(tileDim[4]);
BufferedImage tile = (BufferedImage) session.getAttribute(TILE_IMAGE);
CaptureUpdateEvent cse = new CaptureUpdateEvent(tile, room, width, height, x, y, pos);
out.write(cse);
reset(session);
}
private void clearMessage(IoSession session) {
session.removeAttribute(MESSAGE_TYPE);
}
private void reset(IoSession session) {
session.removeAttribute(TILE_INFO);
session.removeAttribute(TILE_IMAGE);
clearMessage(session);
}
}

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<?xml version="1.0" encoding="UTF-8"?>
<configuration>
<appender name="DESKSHARE" class="ch.qos.logback.core.FileAppender">
<File>log/deskshare.log</File>
<Append>false</Append>
<Encoding>UTF-8</Encoding>
<BufferedIO>false</BufferedIO>
<ImmediateFlush>true</ImmediateFlush>
<layout class="ch.qos.logback.classic.PatternLayout">
<Pattern>
%date [%thread] %-5level %logger{35} - %msg%n
</Pattern>
</layout>
</appender>
<root>
<level value="DEBUG" />
<appender-ref ref="DESKSHARE" />
</root>
</configuration>

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webapp.contextPath=/deskShare
webapp.virtualHosts=*, localhost, localhost:8088, 127.0.0.1:8088

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:lang="http://www.springframework.org/schema/lang"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">
<bean id="placeholderConfig" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="/WEB-INF/red5-web.properties" />
</bean>
<bean id="web.context" class="org.red5.server.Context"
autowire="byType" />
<bean id="web.scope" class="org.red5.server.WebScope"
init-method="register">
<property name="server" ref="red5.server" />
<property name="parent" ref="global.scope" />
<property name="context" ref="web.context" />
<property name="handler" ref="web.handler" />
<property name="contextPath" value="${webapp.contextPath}" />
<property name="virtualHosts" value="${webapp.virtualHosts}" />
</bean>
<bean id="web.handler" class="org.bigbluebutton.deskshare.DeskShareApplication">
<property name="deskShareServer" ref="deskShareServer"/>
</bean>
<bean id="deskshare.service" class="org.bigbluebutton.deskshare.DeskShareService">
<property name="streamerGateway" ref="streamerGateway"/>
</bean>
<bean id="deskShareServer" class="org.bigbluebutton.deskshare.socket.DeskShareServer" >
<property name="screenCaptureHandler" ref="screenCaptureHandler"/>
</bean>
<!-- The IoHandler implementation -->
<bean id="screenCaptureHandler" class="org.bigbluebutton.deskshare.socket.ScreenCaptureMessageHandler">
<property name="streamerGateway" ref="streamerGateway"/>
</bean>
<bean id="streamerGateway" class="org.bigbluebutton.deskshare.StreamerGateway">
<property name="streamFactory" ref="streamFactory"/>
<property name="deskShareApplication" ref="web.handler"/>
</bean>
<bean id="streamFactory" class="org.bigbluebutton.deskshare.StreamFactory">
<property name="deskShareApplication" ref="web.handler"/>
</bean>
</beans>

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:lang="http://www.springframework.org/schema/lang"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.0.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-2.0.xsd">
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"/>
<bean id="handlerMapping" class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="defaultHandler" ref="tunnelController"/>
</bean>
<bean id="tunnelController" class="org.bigbluebutton.deskshare.servlet.TunnelController">
<property name="methodNameResolver">
<bean class="org.springframework.web.servlet.mvc.multiaction.PropertiesMethodNameResolver">
<property name="mappings">
<props>
<prop key="/screenCapture">screenCaptureHandler</prop>
</props>
</property>
</bean>
</property>
</bean>
</beans>

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<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<display-name>deskShare</display-name>
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>/deskshare</param-value>
</context-param>
<listener>
<listener-class>org.red5.logging.ContextLoggingListener</listener-class>
</listener>
<filter>
<filter-name>LoggerContextFilter</filter-name>
<filter-class>org.red5.logging.LoggerContextFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>LoggerContextFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!--listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener-->
<servlet>
<servlet-name>tunnel</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- maps the sample dispatcher to *.form -->
<servlet-mapping>
<servlet-name>tunnel</servlet-name>
<url-pattern>/tunnel/*</url-pattern>
</servlet-mapping>
<security-constraint>
<web-resource-collection>
<web-resource-name>Forbidden</web-resource-name>
<url-pattern>/streams/*</url-pattern>
</web-resource-collection>
<auth-constraint/>
</security-constraint>
</web-app>