Hi everybody. I'd like to take part in OpenMeetings project as android-developer. Few words about myself: my name is Anton Smirnov and i am professional j2ee and now Android developer for last 4 years (10+ years overall). I am going to start my participation from java/android projects overview (both libraries and apps) that we can use or take part in order to provide android compatibility for OpenMeetings server-side. Since android platform is based on Java with native code support via JNI i will focus on pure Java/Android or native code (C, C++) products with Java bindings. SIP libs/api ============ 1. Sun J2ME (November 2004) Since OpenMeetings server side is java-based and probably most of you are familiar with that, i will leave here just few links: A very good article on "Sip for J2ME" can be found on http://developers.sun.com/mobility/apis/articles/sip/. You can found brief history of sip in Java (JSP artifacts can be found on http://jcp.org/en/jsr/detail?id=180) there. http://java.sun.com/products/jain/SIP-and-Java.html http://developers.sun.com/mobility/apis/articles/sip/ 2. jsip - sip implementation (RFC 3261) for java (started Aug 1999) project page : http://jsip.java.net/ jcp events : http://jcp.org/en/jsr/detail?id=32 A goog article and usage example can be found here (with instant messaging example) : http://www.oracle.com/technetwork/articles/entarch/introduction-jain-sip-090386.html Now the lib is build on CI server : http://hudson.jboss.org/hudson/view/Mobicents/job/jain-sip/ 3. Android: (Dec 2010) Since "Gingerbread" (API 10) Android release SIP API is available. It provides SIP-related classes which let us opportunity to add basic SIP features in android application. Audio streaming support, no video support in example (but video is said to be supported) Dev guide: http://developer.android.com/guide/topics/network/sip.html Demo app is available in android sdk examples SIP-clients ============ Few SIP android clients can be found on Google Android Market (now Google Play), a brief overview. Each of them has both good and bad feedbacks and probably a big part of issues are hardware-specific as most of them have plugins and codecs written in native code with Java-bindings. Video/audio formats which are supported in Android out-of-box: http://developer.android.com/guide/appendix/media-formats.html 1. Sipdroid -------- Open-source, GPL3 Android-only High activity on project, 33 commiters not based on android api 500k - 1m downloads, average rating (4.0/5) project : http://sipdroid.org/ google play : https://play.google.com/store/apps/details?id=org.sipdroid.sipua 2. 3cxPhone -------- Proprietary, free Cross-platform 100k-500k downloads, high rating (3.9/5) google play : ttps://play.google.com/store/apps/details?id=com.tcx.sip.ui 4. CSipSimple ---------- Open-source, GPL Android-only high code rating, 3 commiters + 4 contributors based on native(C) SIP implementation + Java bindings (http://www.pjsip.org/, http://sourceforge.net/projects/pjsip-jni/) Good users support and developers documentation (including android build instructions, both native and android) 100k-500k downloads, everage rating (4.4/5) project : http://code.google.com/p/csipsimple/ goolge play : https://play.google.com/store/apps/details?id=com.csipsimple 5. MobileVoIP ---------- Proprietary, free Cross-platform 500k - 1m downloads, below average users rating (3.7/5) google play : https://play.google.com/store/apps/details?id=finarea.MobileVoip 6. HQ Video SIP/IMS client ----------------------- Proprietary, free 100k-500k downloads, low users rating (2.5/5) google play : https://play.google.com/store/apps/details?id=org.doubango.imsdroid 7. Nimbuzz Messenger ------------------ Proprietary, free 1m - 5m downloads, average users rating (4./5) google play : https://play.google.com/store/apps/details?id=com.nimbuzz 8. Linphone -------- Open-source, cross-platform 100k - 500k downloads, average users rating (3.9/5) project : http://www.linphone.org/ sources : http://www.linphone.org/eng/download/git.html google play : https://play.google.com/store/apps/details?id=org.linphone Most clients have (audio,video) codecs (native code) + Java-bindings as android support only few RTMP libs ========== The voice and video stream communications in SIP applications are carried over another application protocol, the Real-time Transport Protocol (RTP), f.e. RTMP. 1. https://github.com/mogo29/Android-RTMP Open-source small lib with no 3rd party dependencies still in development, audio only 2. http://code.google.com/p/android-rtmp-client/ Open-source, Apache 2.0 license depends on Red5 sources: Open-source, LGPL project : http://code.google.com/p/red5/ sources : http://red5.googlecode.com/svn/java/server/trunk usage example : http://code.google.com/p/android-recorder/ 3. flazr ----- Open-source, GPL3 Very good user developer feedbacks project : http://www.flazr.com/, http://sourceforge.net/projects/flazr/ 4. rtmpdump -------- open-source, GPL2 native code + Android bindings project : http://rtmpdump.mplayerhq.hu/ 5. aftek ----- Proprietary, commercial evaluation version is available (but 'Service Temporarily Unavailable') description : http://www.aftek.com/afteklab/aftek-RTMP-library.shtml slides : http://www.slideshare.net/aftekandroid/android-rtmp-client-3464514 6. juv --- Proprietary, commercial evaluation version is available description : http://www.smaxe.com/juvclient.jsf I think that we should contribute to one of existing open-source projects (Sipdroid, Linphone, CSipSimple) in order to provide android client for OpenMeetings platform. For this we should specify required and appreciated client app features.
What do you think about it?
