From bc99092@sac.sfbay.sun.com Wed Mar 25 21:25:01 2009 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2Q4P0ft023974 for ; Wed, 25 Mar 2009 21:25:00 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id n2Q4OrBH021683; Thu, 26 Mar 2009 12:24:59 +0800 (SGT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH300G07IXLH300@nwk-avmta-1.sfbay.Sun.COM>; Wed, 25 Mar 2009 21:24:57 -0700 (PDT) Received: from dm-sfbay-01.sfbay.sun.com ([129.145.155.118]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH300DO6IXLYFA0@nwk-avmta-1.sfbay.Sun.COM>; Wed, 25 Mar 2009 21:24:57 -0700 (PDT) Received: from sac.sfbay.sun.com (sac.SFBay.Sun.COM [129.146.226.132]) by dm-sfbay-01.sfbay.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n2Q4OtNO023023; Wed, 25 Mar 2009 21:24:55 -0700 (PDT) Received: from sac.sfbay.sun.com (localhost [127.0.0.1]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2Q4OsSQ023969; Wed, 25 Mar 2009 21:24:54 -0700 (PDT) Received: (from bc99092@localhost) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8/Submit) id n2Q4OsVj023965; Wed, 25 Mar 2009 21:24:54 -0700 (PDT) Date: Wed, 25 Mar 2009 21:24:54 -0700 (PDT) From: Brian Cameron Subject: Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] To: LSARC-ext@sun.com Cc: Alfred.Peng@sun.com, desktop-discuss@opensolaris.org Message-id: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 Status: RO Content-Length: 9251 Template Version: @(#)sac_nextcase 1.68 02/23/09 SMI This information is Copyright 2009 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: Coherence 1.2. Name of Document Author/Supplier: Author: Alfred Peng 1.3 Date of This Document: 25 March, 2009 4. Technical Description Copyright 2009 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: Coherence 1.2. Name of Document Author/Supplier: Alfred Peng 1.3. Date of This Document: 03/13/2009 1.3.1. Date this project was conceived: 07/12/2007 1.4. Name of Major Document Customer(s)/Consumer(s): 1.4.1. The PAC or CPT you expect to review your project: Solaris PAC 1.4.2. The ARC(s) you expect to review your project: LSARC 1.4.3. The Director/VP who is "Sponsoring" this project: robert.odea@sun.com 1.4.4. The name of your business unit: New Solaris Group, Desktop 1.5. Email Aliases: 1.5.1. Responsible Manager: leo.binchy@sun.com 1.5.2. Responsible Engineer: alfred.peng@sun.com 1.5.3. Marketing Manager: glynn.foster@sun.com 1.5.4. Interest List: desktop-discuss@opensolaris.org 4. Technical Description: 4.1. Details: Coherence is a DLNA (Digital Living Network Alliance)/UPnP (Universal Plug and Play) Framework written in Python for the Digital Living. The goals of UPnP are to allow devices to connect seamlessly and to simplify the implementation of networks in the home (data sharing, communications, and entertainment) and in corporate environments for simplified installation of computer components. With the UPnP framework, users can setup their home media center with PCs, wireless devices (mobile phones, tablet PCs etc.) and networked appliances (TVs, audio players, multimedia players, games consoles etc.)[2]. Coherence is divided into three main parts: the core, the virtual devices, and the device backends[3]. The core of coherence provides an implementation of: a SSDP (Simple Service Discovery Protocol) [4] server, a MSEARCH (command to find other devices connected to the UPnP network) client to find other devices connected to the network, server and client for HTTP/SOAP requests, server and client for Event Subscription and Notification. The virtual devices contain: Media Server to provide media content (local storage or online services) and directory information, Media Renderer to play back media content provided by the Media Server, Control Point to interconnect Media Server and Media Renderer. The virtual device implementation registers with the core, declares which service interfaces it is using, and attaches callbacks which map the service actions to its backend. It's generally a translation map between the core and the device backend. The device backend is the part to host, render and control the media files. The following components could act as the device backend: file systems to store the media files, audio/video hardware and desktop GUI applications to render the media content and control the playback. For users, coherence can be used in conjunction with Rhythmbox, Totem or Elisa, and become a controllable DLNA/UPnP Media Renderer. For example, coherence is used in Elisa to talk with the Apple Movie trailer Media Server for its Movie trailer plugin and YouTube Media Server for its YouTube plugin. Coherence can also be configured as a DLNA/UPnP Media Server and exports local and remote media files via its backend to other UPnP clients. Developers get a python framework with an emerging DBus API. This framework is designed to automate all UPnP-related tasks as much as possible and enable applications to participate in digital living networks. In short, coherence provides two main features to the system: - Interfaces so that programs like elisa, rhythmbox, totem, etc. can act as Media Renderer/Control Point and connect to the UPnP servers on the internet. - Interfaces so that an UPnP Media Server can be set up on the system. 4.2. Bug/RFE Number(s): None. 4.3. In Scope: See above. 4.4. Out of Scope: See above. 4.5. Interfaces: Exported Interface -------------------------------------------------------------------- Interface Name Classification Comment -------------------------------------------------------------------- SUNWpython-coherence Uncommitted Package name /usr/bin/coherence Volatile Coherence CLI to start the server $HOME/.coherence Private Config file /usr/lib/python2.4/vendor-packages/Coherence*.egg-info Uncommitted Python egg files /usr/lib/python2.4/vendor-packages/coherence Uncommitted Python API /usr/lib/python2.6/vendor-packages/Coherence*.egg-info Uncommitted Python egg files /usr/lib/python2.6/vendor-packages/coherence Uncommitted Python API Imported Interface -------------------------------------------------------------------- Interface Classification Comment -------------------------------------------------------------------- Python External PSARC/2005/532 Python Evolving Migration from /usr/sfw to /usr and upgrade to v2.4.x Python 2.6 Uncommitted PSARC/2009/043 Python Twisted Uncommitted PSARC/2008/121 Python Setuptools Uncommitted PSARC/2008/084 4.6. Doc Impact: coherence.1 4.7. Admin/Config Impact: Coherence looks for the configuration file named .coherence in $HOME by default during server startup. Alternatively with the option -c|--configfile the location of the configuration file can be passed. In the configuration file, the following parameters can be specified: log level, log file, interface definition for systems with more than one physical interface, serverport tells coherence the port to listen on and the plugins that will be activated. The configuration options can be also passed to coherence through commandline during startup. If no configuration is specified, the default value will be used for coherence server. 4.8. HA Impact: None. 4.9. I18N/L10N Impact: The JDS team and the G11N team are working together to evaluate and provide I18N/L10N support. 4.10. Packaging & Delivery: Adds new package, SUNWpython-coherence. 4.11. Security Impact: Coherence implements the functions to download https page to a string/file by importing the Python Twisted ssl module via twisted.internet. The security concern for UPnP is the lack of device authentication, especially for Internet gateway devices[5]. Coherence doesn't provide an Internet gateway device implementation now. It's designed to work in the home network. The media files won't be propagate to the Internet through multicast. When installed on a gateway, the media files are reachable from the outside via http. 4.12. Dependencies: The following versions of the imported interfaces are required: Python 2.4.x Python 2.6 Python Twisted Python Setuptools 5. Reference Documents: [1] Coherence homepage: http://coherence.beebits.net/ [2] The DLNA/UPnP devices supported by Coherence: http://coherence.beebits.net/wiki/SupportedDevices [3] Coherence architectural overview: http://coherence.beebits.net/wiki/ArchitecturalOverview [4] SSDP: http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol [5] UPnP security concern: http://en.wikipedia.org/wiki/Universal_Plug_and_Play#Lack_of_Default_Authentication [6] Related ARC cases: PSARC/2005/532: Python migration from /usr/sfw to /usr and upgrade to v2.4.x PSARC/2008/121: Python Twisted PSARC/2008/084: Python Setuptools PSARC/2009/043: Python 2.6 6. Resources and Schedule 6.4. Steering Committee requested information 6.4.1. Consolidation C-team Name: Desktop 6.5. ARC review type: FastTrack 6.6. ARC Exposure: open From Darren.Moffat@sun.com Thu Mar 26 02:29:12 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2Q9TB5Q000876 for ; Thu, 26 Mar 2009 02:29:12 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2Q9TBpv023955 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Thu, 26 Mar 2009 03:29:11 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH30090NX0MYP00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 02:29:10 -0700 (PDT) Received: from gmp-eb-inf-2.sun.com ([192.18.6.24]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH3007E2X0KUJ20@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 02:29:09 -0700 (PDT) Received: from fe-emea-10.sun.com (gmp-eb-lb-2-fe2.eu.sun.com [192.18.6.11]) by gmp-eb-inf-2.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n2Q9T8W9000295 for ; Thu, 26 Mar 2009 09:29:08 +0000 (GMT) Received: from conversion-daemon.fe-emea-10.sun.com by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH300300WMBN300@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 09:29:07 +0000 (GMT) Received: from [129.156.173.21] ([unknown] [129.156.173.21]) by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH300AEKX09RT00@fe-emea-10.sun.com>; Thu, 26 Mar 2009 09:29:02 +0000 (GMT) Date: Thu, 26 Mar 2009 09:28:57 +0000 From: Darren J Moffat Subject: Re: Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> Sender: Darren.Moffat@sun.com To: Brian Cameron Cc: LSARC-ext@sun.com, Alfred.Peng@sun.com, desktop-discuss@opensolaris.org Message-id: <49CB4AD9.2020206@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> User-Agent: Thunderbird 2.0.0.18 (X11/20081201) Status: RO Content-Length: 894 First I have to say I very happy that a case covering UPnP/DLNA is up for review. I'm familar with mediatomb (which is in the pkg.opensolaris.org/pending repo already) and ushare UPnP/DLNA servers but not Coherence. I understand that Coherence is a framework, but what UPnP/DLNA services will OpenSolaris actually have when this project integrates ? Will Rhythmbox, Totem use Coherence automatically or is redelivering them built to do so another case ? Is there a case planned to deliver Elisa ? Given that there is the ability for Coherence to act as a UPnP/DLNA server should this case deliver an SMF manifest for that ? Can Coherence do transcoding (when acting as a server) if suitable media manipulation libraries are available ? mediatomb can do this but requires ffmpeg libraries to do so. Is there any relationship between Coherence and gstreamer ? -- Darren J Moffat From Alfred.Peng@sun.com Thu Mar 26 06:01:53 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2QD1rmB008390 for ; Thu, 26 Mar 2009 06:01:53 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2QD1mp0014170 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Thu, 26 Mar 2009 07:01:53 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH400A056V3S100@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 06:01:51 -0700 (PDT) Received: from sineb-mail-2.sun.com ([192.18.19.7]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH40085M6UZP420@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 06:01:51 -0700 (PDT) Received: from fe-apac-05.sun.com (fe-apac-05.sun.com [192.18.19.176] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2QD1lnF013545 for ; Thu, 26 Mar 2009 13:01:47 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH4006006P0TG00@mail-apac.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Thu, 26 Mar 2009 21:01:47 +0800 (SGT) Received: from [172.22.184.128] ([unknown] [155.69.198.9]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH400HDD6UYYUF0@mail-apac.sun.com>; Thu, 26 Mar 2009 21:01:47 +0800 (SGT) Date: Thu, 26 Mar 2009 21:02:08 +0800 From: Alfred Peng Subject: Re: Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CB4AD9.2020206@Sun.COM> Sender: Alfred.Peng@sun.com To: Darren J Moffat Cc: Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49CB7CD0.6010803@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 2820 Hi Darren, Thanks for the comments. Darren J Moffat wrote: > First I have to say I very happy that a case covering UPnP/DLNA is up > for review. > > I'm familar with mediatomb (which is in the > pkg.opensolaris.org/pending repo already) and ushare UPnP/DLNA servers > but not Coherence. Not aware that mediatomb is already in /pending. Only know that the spec file is available in SFE (spec-files-extra). Will try that as well. > > I understand that Coherence is a framework, but what UPnP/DLNA > services will OpenSolaris actually have when this project integrates ? > Will Rhythmbox, Totem use Coherence automatically or is redelivering > them built to do so another case ? Is there a case planned to deliver > Elisa ? As it's mentioned in the ARC case, Coherence provides two main features to OpenSolaris: - Interfaces so that programs like elisa, rhythmbox, totem, etc. can act as Media Renderer/Control Point and connect to the UPnP servers on the internet. The UPnP servers here include the service providers such as Flickr/YouTube/TED/AppleTrailers etc. Elisa is already integrated into OpenSolaris 2009.06 b107 (LSARC/2008/713) and users can use Elisa's plugins to connect to the online servers through Coherence. The Coherence plugins for Rhythmbox and Totem aren't ready yet. I think the code will be moved to the source tree of Rhythmbox/Totem in the near future: http://coherence.beebits.net/wiki/Totem http://coherence.beebits.net/wiki/RhythmBox - Interfaces so that a UPnP Media Server can be set up on the system. By doing this, OpenSolaris can act as a UPnP/DLNA Media server to export local and remote media files to other UPnP clients. > Given that there is the ability for Coherence to act as a UPnP/DLNA > server should this case deliver an SMF manifest for that ? With Coherence, every uses can set up their own servers on the same box, no matter to expose the local files, or aggregate the media information from the Internet. The configuration file is necessary to customize the server. By default, Coherence will search for $HOME/.coherence. I'm not sure whether SMF can handle this one server for one user situation, or should we limit Coherence to be only one server on one box? > Can Coherence do transcoding (when acting as a server) if suitable > media manipulation libraries are available ? mediatomb can do this > but requires ffmpeg libraries to do so. > > Is there any relationship between Coherence and gstreamer ? Thanks for pointing this out. Currently, Coherence implements a transcoder for local audio files (audio/mpeg, audio/ogg, audio/x-wav, audio/x-m4a etc.). Transcoding is done with a GStreamer pipeline and a custom sink that writes to a http request. So Coherence requires the GStreamer FFmpeg plug-in to do so. Best Regards, -Alfred From Brian.Cameron@sun.com Thu Mar 26 07:57:27 2009 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2QEvQZv016152 for ; Thu, 26 Mar 2009 07:57:27 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id n2QEvNLm002659 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Thu, 26 Mar 2009 22:57:25 +0800 (SGT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH400E05C7OP900@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 08:57:24 -0600 (MDT) Received: from brmea-mail-1.sun.com ([192.18.98.31]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH400DFAC7OLU10@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 08:57:24 -0600 (MDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2QEvOFa005070 for ; Thu, 26 Mar 2009 14:57:24 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH400H00B8XCA00@mail-amer.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 08:57:23 -0600 (MDT) Received: from [10.0.0.3] ([unknown] [99.141.123.234]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH400NBPC7E24C0@mail-amer.sun.com>; Thu, 26 Mar 2009 08:57:15 -0600 (MDT) Date: Thu, 26 Mar 2009 09:56:36 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CB7CD0.6010803@sun.com> Sender: Brian.Cameron@sun.com To: Alfred Peng Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49CB97A4.6090208@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090323 Thunderbird/3.0b2 Status: RO Content-Length: 933 Alfred: >> Is there any relationship between Coherence and gstreamer ? > Thanks for pointing this out. Currently, Coherence implements a > transcoder for local audio files (audio/mpeg, audio/ogg, audio/x-wav, > audio/x-m4a etc.). Transcoding is done with a GStreamer pipeline and a > custom sink that writes to a http request. So Coherence requires the > GStreamer FFmpeg plug-in to do so. What is the specific requirement that Coherence has on FFmpeg? Please explain. Are you sure that this requirement can't be met via a non-FFmpeg solution. If coherence needs MPEG-2 or MPEG-4 support, or other non-free media support, then I would think that the Fluendo plugins would also work. I wouldn't think there would be any special relationship between coherence and GStreamer. Aside from the fact that some media programs like totem, rhythmbox and elisa pull data from UPnP servers and play them via a GStreamer pipeline. Brian From Alfred.Peng@sun.com Thu Mar 26 10:06:00 2009 Received: from sunmail3mpk.sfbay.sun.com (sunmail3mpk.SFBay.Sun.COM [129.146.11.52]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2QH60cR015183 for ; Thu, 26 Mar 2009 10:06:00 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail3mpk.sfbay.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2QH5xWa018839 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Thu, 26 Mar 2009 10:06:00 -0700 (PDT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH400N0DI5Z2T00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 10:05:59 -0700 (PDT) Received: from sineb-mail-2.sun.com ([192.18.19.7]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH400I6BI5VLJ80@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 10:05:57 -0700 (PDT) Received: from fe-apac-05.sun.com (fe-apac-05.sun.com [192.18.19.176] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2QH5tRm018918 for ; Thu, 26 Mar 2009 17:05:55 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH400E00HZPZ500@mail-apac.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 01:05:55 +0800 (SGT) Received: from [192.168.1.71] ([unknown] [116.14.232.161]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH400HISI5SYUJ0@mail-apac.sun.com>; Fri, 27 Mar 2009 01:05:55 +0800 (SGT) Date: Fri, 27 Mar 2009 01:06:14 +0800 From: Alfred Peng Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CB97A4.6090208@sun.com> Sender: Alfred.Peng@sun.com To: Brian Cameron Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49CBB606.70001@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 2054 Hi Brian, Brian Cameron wrote: > Alfred: >>> Is there any relationship between Coherence and gstreamer ? >> Thanks for pointing this out. Currently, Coherence implements a >> transcoder for local audio files (audio/mpeg, audio/ogg, audio/x-wav, >> audio/x-m4a etc.). Transcoding is done with a GStreamer pipeline and a >> custom sink that writes to a http request. So Coherence requires the >> GStreamer FFmpeg plug-in to do so. > > What is the specific requirement that Coherence has on FFmpeg? Please > explain. Coherence can do transcoding when it acts as a media server as this link points out: http://coherence.beebits.net/wiki/TransCoding. Please note that this document is out-of-date. I just did a search to the source code and the ChangeLog. Coherence has a gstreamer-based transcoder (untested) to do passthrough to MP4 (H264/aac). This can be used by AppleTrailers backend to transcode the movie trailers (video/mov?) to video/mp4. The output of gst-inspect on my box shows that ffmpeg has the MPEG-4 compatible video encoder/decoder. So I think GStreamer ffmpeg plugin could be one of the choices to do the transcoding for Coherence. Fluendo plugins might be another choice, but I can't confirm as I don't have the codecs on my box. > Are you sure that this requirement can't be met via a non-FFmpeg > solution. If coherence needs MPEG-2 or MPEG-4 support, or other > non-free media support, then I would think that the Fluendo plugins > would also work. Someone who has the fluendo codecs could help confirm this. > I wouldn't think there would be any special relationship between > coherence and GStreamer. Aside from the fact that some media > programs like totem, rhythmbox and elisa pull data from UPnP > servers and play them via a GStreamer pipeline. The Coherence transcoder depends on GStreamer as I can tell from the source code. And Coherence implements the transcoding via gst-python. Guess we'll have to include the ARC case gst-python (PSARC/2008/105) in the "Imported Interface" table. Best Regards, -Alfred From Brian.Cameron@sun.com Thu Mar 26 10:22:24 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2QHMNUL016152 for ; Thu, 26 Mar 2009 10:22:23 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2QHML8r018074 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Thu, 26 Mar 2009 11:22:23 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH400K0FIXACM00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 10:22:22 -0700 (PDT) Received: from brmea-mail-4.sun.com ([192.18.98.36]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH400C6DIXABFB0@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 10:22:22 -0700 (PDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2QHMMI2029514 for ; Thu, 26 Mar 2009 17:22:22 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH400400FZX5K00@mail-amer.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Thu, 26 Mar 2009 11:22:21 -0600 (MDT) Received: from [10.0.0.3] ([unknown] [99.141.123.234]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH4000DCIX2GX20@mail-amer.sun.com>; Thu, 26 Mar 2009 11:22:15 -0600 (MDT) Date: Thu, 26 Mar 2009 12:21:36 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CBB606.70001@sun.com> Sender: Brian.Cameron@sun.com To: Alfred Peng Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49CBB9A0.8050505@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090323 Thunderbird/3.0b2 Status: RO Content-Length: 1312 Alfred: Please test the Fluendo plugins and verify that programs like totem, rhythmbox and elisa work well with them. In a separate email, I provided you information about how to test with Fluendo's plugins. So, hopefully you can respond with the results after testing. Also, make sure to remove FFmpeg from your system. It's better to use the Fluendo plugins than to use FFmpeg. >> I wouldn't think there would be any special relationship between >> coherence and GStreamer. Aside from the fact that some media >> programs like totem, rhythmbox and elisa pull data from UPnP >> servers and play them via a GStreamer pipeline. > The Coherence transcoder depends on GStreamer as I can tell from the > source code. And Coherence implements the transcoding via gst-python. > Guess we'll have to include the ARC case gst-python (PSARC/2008/105) in > the "Imported Interface" table. I added this to the Imported interfaced table, and a comment to the end of section 4.1 to explain the gst-python dependency. I also updated the package names in the Exported Interface table to highlight that we will deliver Python 2.4 bindings in the SUNWpython24-coherence package and the 2.6 bindings in the SUNWpython26-coherence package, to be consistent with our normal package naming for Python modules. Thanks, Brian From Alfred.Peng@Sun.COM Fri Mar 27 03:13:24 2009 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2RADOhu012832 for ; Fri, 27 Mar 2009 03:13:24 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail5.uk.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n2RADM6L003916 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 27 Mar 2009 10:13:23 GMT Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH500D0XTQATZ00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 03:13:22 -0700 (PDT) Received: from sineb-mail-2.sun.com ([192.18.19.7]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH500J3ZTQ8GAE0@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 03:13:21 -0700 (PDT) Received: from fe-apac-06.sun.com (fe-apac-06.sun.com [192.18.19.177] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2RADJIa003006 for ; Fri, 27 Mar 2009 10:13:19 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH500400TJZRN00@mail-apac.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 18:13:19 +0800 (SGT) Received: from [192.168.1.71] ([unknown] [116.14.232.161]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH500C1LTQ2FL20@mail-apac.sun.com>; Fri, 27 Mar 2009 18:13:19 +0800 (SGT) Date: Fri, 27 Mar 2009 18:13:38 +0800 From: Alfred Peng Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CBB9A0.8050505@sun.com> Sender: Alfred.Peng@Sun.COM To: Brian Cameron Cc: Darren J Moffat , Brian Cameron , LSARC-ext@Sun.COM, desktop-discuss@opensolaris.org Message-id: <49CCA6D2.8050402@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 2507 Hi Brian, I've tested the Fluendo plugins on my OpenSolaris box here with Totem/Rhythmbox/Elisa (removed the FFmpeg one). All of them work great with playing the audio/video streaming. Need to do a correction for my last post about transcoding of Coherence. Coherence doesn't depend on the FFmpeg plugins of GStreamer. The current Coherence code implements mp4 transcoder, which depends on the qtdemux element of gst-plugins-good and h264parse/mp4mux elements of gst-plugins-bad 0.10.10. The GStremaer pipeline looks like "$file ! qtdemux name=d ! queue ! h264parse ! mp4mux name=mux d. ! queue ! mux.". As we can see, coherence doesn't do decoding/encoding, demux/mux are involved. For audio transcoding, the GStreamer lame element was used. But all the audio transcoding part is disabled in the current code. I've sent email to the upstream community for further information. Is it possible that Fluendo could provide similar codecs as h264parse (Parses raw h264 stream)/mp4mux (should be the part to mux the mp4 audio/video) do? Are there any replacement for them? Thanks for the updates for the one-pager. Best Regards, -Alfred Brian Cameron wrote: > Alfred: > > Please test the Fluendo plugins and verify that programs like totem, > rhythmbox and elisa work well with them. In a separate email, I > provided you information about how to test with Fluendo's plugins. > So, hopefully you can respond with the results after testing. > > Also, make sure to remove FFmpeg from your system. It's better > to use the Fluendo plugins than to use FFmpeg. > >>> I wouldn't think there would be any special relationship between >>> coherence and GStreamer. Aside from the fact that some media >>> programs like totem, rhythmbox and elisa pull data from UPnP >>> servers and play them via a GStreamer pipeline. >> The Coherence transcoder depends on GStreamer as I can tell from the >> source code. And Coherence implements the transcoding via gst-python. >> Guess we'll have to include the ARC case gst-python (PSARC/2008/105) in >> the "Imported Interface" table. > > I added this to the Imported interfaced table, and a comment to the end > of section 4.1 to explain the gst-python dependency. I also updated > the package names in the Exported Interface table to highlight that > we will deliver Python 2.4 bindings in the SUNWpython24-coherence > package and the 2.6 bindings in the SUNWpython26-coherence package, > to be consistent with our normal package naming for Python modules. From Brian.Cameron@sun.com Fri Mar 27 11:04:28 2009 Received: from sunmail3mpk.sfbay.sun.com (sunmail3mpk.SFBay.Sun.COM [129.146.11.52]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2RI4Sjl008765 for ; Fri, 27 Mar 2009 11:04:28 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail3mpk.sfbay.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2RI4NPw007871 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 27 Mar 2009 11:04:27 -0700 (PDT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KH60021HFJECW00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 11:04:26 -0700 (PDT) Received: from brmea-mail-4.sun.com ([192.18.98.36]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KH6006SMFJDMVC0@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 11:04:26 -0700 (PDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2RI4PVu013179 for ; Fri, 27 Mar 2009 18:04:25 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KH600M00EYSJZ00@mail-amer.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 27 Mar 2009 12:04:25 -0600 (MDT) Received: from [129.153.250.142] ([unknown] [129.153.250.142]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KH600ENGFJ6Y1E0@mail-amer.sun.com>; Fri, 27 Mar 2009 12:04:20 -0600 (MDT) Date: Fri, 27 Mar 2009 13:03:41 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CCA6D2.8050402@sun.com> Sender: Brian.Cameron@sun.com To: Alfred Peng Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49CD14FD.5070103@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090323 Thunderbird/3.0b2 Status: RO Content-Length: 2629 Alfred: > I've tested the Fluendo plugins on my OpenSolaris box here with > Totem/Rhythmbox/Elisa (removed the FFmpeg one). All of them work great > with playing the audio/video streaming. Great, good to know. I think most users will use these features of coherence via programs like elisa, totem, and rhythmbox. > Need to do a correction for my last post about transcoding of Coherence. > Coherence doesn't depend on the FFmpeg plugins of GStreamer. The current > Coherence code implements mp4 transcoder, which depends on the qtdemux > element of gst-plugins-good and h264parse/mp4mux elements of > gst-plugins-bad 0.10.10. The GStremaer pipeline looks like "$file ! > qtdemux name=d ! queue ! h264parse ! mp4mux name=mux d. ! queue ! mux.". > As we can see, coherence doesn't do decoding/encoding, demux/mux are > involved. > > For audio transcoding, the GStreamer lame element was used. But all the > audio transcoding part is disabled in the current code. I've sent email > to the upstream community for further information. I assume that lame is used for MP3 encoding. Obviously Solaris does not provide any MP3 encoding support, and Fluendo does not yet sell any MP3 encoder. Therefore, I think any such support would be disabled in Solaris by default. One reason it might be disabled in the coherence code is due to the fact that MP3 encoding is a non-free codec. Is it possible to configure coherence audio encoding to use a free format that is supported on Solaris, such as ogg-vorbis. This might not be useful for all users, but I'd think that coherence should provide the option to encode audio in a free format. > Is it possible that Fluendo could provide similar codecs as h264parse > (Parses raw h264 stream)/mp4mux (should be the part to mux the mp4 > audio/video) do? Are there any replacement for them? We first should discuss this with the GStreamer community to find out if these plugins can be migrated to gst-plugins-good. That would be the normal process for getting new plugins integrated. We could consider patching GStreamer to add a plugin, however we first should work with the external community to get the plugins ready for use. Could you follow up with the GStreamer community and find out if there is any way we could help get these plugins migrated to gst-plugins-good or if there are any alternatives? In other words, some features of coherence might be disabled unless the user installs their own GStreamer plugins to enable the features. And some of these features may have further licensing requirements that users might need to address in order to use those features. Brian From Alfred.Peng@sun.com Mon Mar 30 02:51:43 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2U9phTS013174 for ; Mon, 30 Mar 2009 02:51:43 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2U9pgZw035713 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Mon, 30 Mar 2009 03:51:43 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KHB00D1VCQ6MV00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 02:51:42 -0700 (PDT) Received: from sineb-mail-2.sun.com ([192.18.19.7]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KHB002CACQ4I5B0@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 02:51:41 -0700 (PDT) Received: from fe-apac-06.sun.com (fe-apac-06.sun.com [192.18.19.177] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2U9peHt008721 for ; Mon, 30 Mar 2009 09:51:40 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KHB00000CP4RO00@mail-apac.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 17:51:40 +0800 (SGT) Received: from [172.22.168.237] ([unknown] [155.69.202.155]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KHB00EWMCQ3ABA0@mail-apac.sun.com>; Mon, 30 Mar 2009 17:51:40 +0800 (SGT) Date: Mon, 30 Mar 2009 17:52:06 +0800 From: Alfred Peng Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49CD14FD.5070103@sun.com> Sender: Alfred.Peng@sun.com To: Brian Cameron Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49D09646.5060202@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> <49CD14FD.5070103@sun.com> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 3746 Brian Cameron wrote: >> Need to do a correction for my last post about transcoding of Coherence. >> Coherence doesn't depend on the FFmpeg plugins of GStreamer. The current >> Coherence code implements mp4 transcoder, which depends on the qtdemux >> element of gst-plugins-good and h264parse/mp4mux elements of >> gst-plugins-bad 0.10.10. The GStremaer pipeline looks like "$file ! >> qtdemux name=d ! queue ! h264parse ! mp4mux name=mux d. ! queue ! mux.". >> As we can see, coherence doesn't do decoding/encoding, demux/mux are >> involved. >> >> For audio transcoding, the GStreamer lame element was used. But all the >> audio transcoding part is disabled in the current code. I've sent email >> to the upstream community for further information. > > I assume that lame is used for MP3 encoding. Obviously Solaris does > not provide any MP3 encoding support, and Fluendo does not yet sell any > MP3 encoder. Therefore, I think any such support would be disabled in > Solaris by default. One reason it might be disabled in the coherence > code is due to the fact that MP3 encoding is a non-free codec. > > Is it possible to configure coherence audio encoding to use a free > format that is supported on Solaris, such as ogg-vorbis. This might > not be useful for all users, but I'd think that coherence should provide > the option to encode audio in a free format. Just got the response from Coherence author. The MP3 encoding part is only needed for XBox experiment and it's a quick hack. The coherence community will "sort out the proper elements to use in advance and enable/disable transcoding pipelines accordingly". As for OpenSolaris, we can always disable the unsupported transcoding pipelines. The proposal to use the free ogg vorbis/theora format has been sent out. As Mozilla community investigates big efforts on the open audio/video which makes use of ogg format for its HTML5 audio/video tag support, the ogg format is quite promising. It'll be good that coherence can support this option. >> Is it possible that Fluendo could provide similar codecs as h264parse >> (Parses raw h264 stream)/mp4mux (should be the part to mux the mp4 >> audio/video) do? Are there any replacement for them? > > We first should discuss this with the GStreamer community to find out > if these plugins can be migrated to gst-plugins-good. That would be > the normal process for getting new plugins integrated. We could > consider patching GStreamer to add a plugin, however we first should > work with the external community to get the plugins ready for use. > Could you follow up with the GStreamer community and find out if there > is any way we could help get these plugins migrated to gst-plugins-good > or if there are any alternatives? From the coherence author, Coherence does audio transcoding only currently. The video pipeline was for testing purpose on PS3 and the video-transcoding part is still under development. Some cleanup will happen when it's released and "the availability of the needed elements will be checked in advance". It's not sure for now which gstreamer plugin elements will be used though. I'd suggest to follow up with the upstream GStreamer community when the Coherence video transcoding is finalized. Will also keep the contact with coherence community. We can always disable some of the features in OpenSolaris if the gstreamer elements used aren't part of gst-plugins-good(base). > In other words, some features of coherence might be disabled unless > the user installs their own GStreamer plugins to enable the features. > And some of these features may have further licensing requirements > that users might need to address in order to use those features. Agreed. Best Regards, -Alfred From Brian.Cameron@sun.com Mon Mar 30 08:59:53 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2UFxr05021672 for ; Mon, 30 Mar 2009 08:59:53 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2UFxGkB008994 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Mon, 30 Mar 2009 09:59:52 -0600 (MDT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KHB00A09TRSDC00@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 09:59:52 -0600 (MDT) Received: from brmea-mail-1.sun.com ([192.18.98.31]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KHB0007KTRRR690@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 09:59:51 -0600 (MDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2UFxpVK010521 for ; Mon, 30 Mar 2009 15:59:51 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KHB00700T369500@mail-amer.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Mon, 30 Mar 2009 09:59:51 -0600 (MDT) Received: from [10.0.0.3] ([unknown] [99.141.123.234]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KHB0077WTRNWG10@mail-amer.sun.com>; Mon, 30 Mar 2009 09:59:49 -0600 (MDT) Date: Mon, 30 Mar 2009 10:59:11 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49D09646.5060202@sun.com> Sender: Brian.Cameron@sun.com To: Alfred Peng Cc: Darren J Moffat , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49D0EC4F.2040204@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> <49CD14FD.5070103@sun.com> <49D09646.5060202@sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090323 Thunderbird/3.0b2 Status: RO Content-Length: 2770 Alfred: >> Is it possible to configure coherence audio encoding to use a free >> format that is supported on Solaris, such as ogg-vorbis. This might >> not be useful for all users, but I'd think that coherence should provide >> the option to encode audio in a free format. > Just got the response from Coherence author. The MP3 encoding part is > only needed for XBox experiment and it's a quick hack. The coherence > community will "sort out the proper elements to use in advance > and enable/disable transcoding pipelines accordingly". As for > OpenSolaris, we can always disable the unsupported transcoding pipelines. It sounds like features like MP3 support are experimental and mainly to support a different platform, Xbox. So, I think it makes sense to just not include such support on Solaris. The nice thing about using GStreamer is that it provides a framework where Sun can deliver all the free codecs, and users can get non-free codecs support from Fluendo. I would say most users would want to use coherence so that they can access popular media services via totem, rhythmbox and elisa plugins. Most such services use non-free media formats like MPEG-2, MPEG-4, so most users would need to get such plugins if they wanted access to these sorts of features. > The proposal to use the free ogg vorbis/theora format has been sent out. > As Mozilla community investigates big efforts on the open audio/video > which makes use of ogg format for its HTML5 audio/video tag support, the > ogg format is quite promising. It'll be good that coherence can support > this option. Thanks, I think it is important to encourage free projects to consider supporting free media alternatives. Seems that shouldn't require as much encouragement as it seems to. Since coherence uses GStreamer already, it would seem fairly trivial to make it work with alternative pipelines that would read/write data in any format the user could define a pipeline for. So I wouldn't think it should be a huge effort, unless perhaps supporting additional free codecs affects the UPnP specification as well as HTML5 video/tag support specification. > I'd suggest to follow up with the upstream GStreamer community when the > Coherence video transcoding is finalized. Will also keep the contact > with coherence community. We can always disable some of the features in > OpenSolaris if the gstreamer elements used aren't part of > gst-plugins-good(base). Any GStreamer plugin with distribution issues are kept in the gst-plugins-ugly module. Such plugins from this module are not distributed on Solaris. So we should not need to disable anything. Coherence features that depend on missing plugins just should not be available until the user installs the needed codec plugin. Brian From Darren.Moffat@sun.com Tue Mar 31 02:56:23 2009 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2V9uM2V002909 for ; Tue, 31 Mar 2009 02:56:23 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id n2V9uARq000929 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Tue, 31 Mar 2009 17:56:21 +0800 (SGT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KHD004157LV8A00@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 03:56:19 -0600 (MDT) Received: from gmp-eb-inf-1.sun.com ([192.18.6.21]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KHD00MVR7LUAP30@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 03:56:19 -0600 (MDT) Received: from fe-emea-10.sun.com (gmp-eb-lb-1-fe3.eu.sun.com [192.18.6.10]) by gmp-eb-inf-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n2V9uIhB023643 for ; Tue, 31 Mar 2009 09:56:18 +0000 (GMT) Received: from conversion-daemon.fe-emea-10.sun.com by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KHD00M005XR4300@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 10:56:18 +0100 (BST) Received: from [192.168.1.104] (cpc2-rdng20-2-0-cust917.15-3.cable.virginmedia.com [86.28.167.150]) by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KHD005E97LFV260@fe-emea-10.sun.com>; Tue, 31 Mar 2009 10:56:04 +0100 (BST) Date: Tue, 31 Mar 2009 10:56:03 +0100 From: Darren J Moffat Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49D0EC4F.2040204@sun.com> Sender: Darren.Moffat@sun.com To: Brian Cameron Cc: Alfred Peng , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49D1E8B3.5000602@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> <49CD14FD.5070103@sun.com> <49D09646.5060202@sun.com> <49D0EC4F.2040204@sun.com> User-Agent: Thunderbird 2.0.0.18 (X11/20090211) Status: RO Content-Length: 704 Brian Cameron wrote: > Any GStreamer plugin with distribution issues are kept in the > gst-plugins-ugly module. Such plugins from this module are not > distributed on Solaris. So we should not need to disable anything. > Coherence features that depend on missing plugins just should not be > available until the user installs the needed codec plugin. Agreed, I don't want to see parts of Coherence disabled because OpenSolaris doesn't have gst-plugins-ugly. That doesn't mean the user hasn't got them (or an equivalent) installed locally. What I don't want is to be forced to remove the Coherence that comes with OpenSolaris and have to build and maintain my own local copy. -- Darren J Moffat From Alfred.Peng@sun.com Tue Mar 31 03:21:37 2009 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2VALatD002604 for ; Tue, 31 Mar 2009 03:21:37 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail5.uk.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n2VALXMP016345 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Tue, 31 Mar 2009 11:21:36 +0100 (BST) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KHD008018RZ0E00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 03:21:35 -0700 (PDT) Received: from sineb-mail-2.sun.com ([192.18.19.7]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KHD00LPE8RXW290@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 03:21:34 -0700 (PDT) Received: from fe-apac-05.sun.com (fe-apac-05.sun.com [192.18.19.176] (may be forged)) by sineb-mail-2.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2VALXCK009787 for ; Tue, 31 Mar 2009 10:21:33 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KHD00I008QTIG00@mail-apac.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 18:21:33 +0800 (SGT) Received: from [172.22.191.81] ([unknown] [155.69.200.58]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KHD003WT8RWVB90@mail-apac.sun.com>; Tue, 31 Mar 2009 18:21:33 +0800 (SGT) Date: Tue, 31 Mar 2009 18:22:01 +0800 From: Alfred Peng Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49D1E8B3.5000602@Sun.COM> Sender: Alfred.Peng@sun.com To: Darren J Moffat , Brian Cameron Cc: Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49D1EEC9.3070107@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> <49CD14FD.5070103@sun.com> <49D09646.5060202@sun.com> <49D0EC4F.2040204@sun.com> <49D1E8B3.5000602@Sun.COM> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 1078 Hi Darren/Brian, If I understand correctly, the Coherence usage of missing GStreamer elements won't introduce extra problem so that we don't need to disable any Coherence transcoding features, and GStreamer will handle the missing elements properly. I agree to keep the transcoding part unchanged then. Thanks, -Alfred Darren J Moffat wrote: > Brian Cameron wrote: >> Any GStreamer plugin with distribution issues are kept in the >> gst-plugins-ugly module. Such plugins from this module are not >> distributed on Solaris. So we should not need to disable anything. >> Coherence features that depend on missing plugins just should not be >> available until the user installs the needed codec plugin. > > Agreed, I don't want to see parts of Coherence disabled because > OpenSolaris doesn't have gst-plugins-ugly. That doesn't mean the user > hasn't got them (or an equivalent) installed locally. What I don't > want is to be forced to remove the Coherence that comes with > OpenSolaris and have to build and maintain my own local copy. > > -- > Darren J Moffat From Brian.Cameron@sun.com Tue Mar 31 10:29:46 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n2VHTkN5026930 for ; Tue, 31 Mar 2009 10:29:46 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n2VHTido050500 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Tue, 31 Mar 2009 11:29:45 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KHD00817SLKGX00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 10:29:44 -0700 (PDT) Received: from brmea-mail-4.sun.com ([192.18.98.36]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KHD00MTESLJ3DE0@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 10:29:43 -0700 (PDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n2VHThSL018489 for ; Tue, 31 Mar 2009 17:29:43 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KHD00C00RQVHW00@mail-amer.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 31 Mar 2009 11:29:43 -0600 (MDT) Received: from [129.153.250.178] ([unknown] [129.153.250.178]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KHD00M28SLI2TA0@mail-amer.sun.com>; Tue, 31 Mar 2009 11:29:42 -0600 (MDT) Date: Tue, 31 Mar 2009 12:29:06 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49D1E8B3.5000602@Sun.COM> Sender: Brian.Cameron@sun.com To: Darren J Moffat Cc: Alfred Peng , Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49D252E2.6050909@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49CB4AD9.2020206@Sun.COM> <49CB7CD0.6010803@sun.com> <49CB97A4.6090208@sun.com> <49CBB606.70001@sun.com> <49CBB9A0.8050505@sun.com> <49CCA6D2.8050402@sun.com> <49CD14FD.5070103@sun.com> <49D09646.5060202@sun.com> <49D0EC4F.2040204@sun.com> <49D1E8B3.5000602@Sun.COM> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090323 Thunderbird/3.0b2 Status: RO Content-Length: 595 Darren: > Agreed, I don't want to see parts of Coherence disabled because > OpenSolaris doesn't have gst-plugins-ugly. That doesn't mean the user > hasn't got them (or an equivalent) installed locally. What I don't want > is to be forced to remove the Coherence that comes with OpenSolaris and > have to build and maintain my own local copy. Right. Since coherence uses GStreamer, there is no hard dependency on a particular GStreamer plugin. If the user adds needed plugins, the features that need it should just start working without needing to recompile or anything, for example. Brian From Brian.Cameron@sun.com Fri Apr 24 00:06:11 2009 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3O76AlC009397 for ; Fri, 24 Apr 2009 00:06:10 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail5.uk.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n3O767aQ025046 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 24 Apr 2009 08:06:09 +0100 (BST) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIL00D0LFQ80S00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 00:06:08 -0700 (PDT) Received: from brmea-mail-1.sun.com ([192.18.98.31]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIL0001RFQ7XT90@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 00:06:07 -0700 (PDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n3O767ea022975 for ; Fri, 24 Apr 2009 07:06:07 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIL00200FHFSE00@mail-amer.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 01:06:07 -0600 (MDT) Received: from [192.168.1.70] ([unknown] [189.136.186.195]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIL00I12FQ4QRE0@mail-amer.sun.com>; Fri, 24 Apr 2009 01:06:06 -0600 (MDT) Date: Fri, 24 Apr 2009 02:06:03 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> Sender: Brian.Cameron@sun.com To: Brian Cameron Cc: LSARC-ext@sun.com, desktop-discuss@opensolaris.org, Alfred Peng Message-id: <49F164DB.4000006@sun.com> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090420 Thunderbird/3.0b2 Status: RO Content-Length: 10521 As agreed at the last LSARC meeting, I am closing this case as approved on 04/21/2009. Overall, this case was non-controversial. There was some discussion about how some features of coherence are disabled if the user doesn't have the appropriate GStreamer plugins installed. Features that depend on non-free media formats, for example, are disabled until the user installs the needed GStreamer plugin. For example, Alfred verified that if the user installs the Fluendo plugins that this enables coherence support for those formats. Thanks, Brian On 03/25/09 23:24, Brian Cameron wrote: > Template Version: @(#)sac_nextcase 1.68 02/23/09 SMI > This information is Copyright 2009 Sun Microsystems > 1. Introduction > 1.1. Project/Component Working Name: > Coherence > 1.2. Name of Document Author/Supplier: > Author: Alfred Peng > 1.3 Date of This Document: > 25 March, 2009 > 4. Technical Description > Copyright 2009 Sun Microsystems > > 1. Introduction > 1.1. Project/Component Working Name: > > Coherence > > 1.2. Name of Document Author/Supplier: > > Alfred Peng > > 1.3. Date of This Document: > > 03/13/2009 > > 1.3.1. Date this project was conceived: > > 07/12/2007 > > 1.4. Name of Major Document Customer(s)/Consumer(s): > > 1.4.1. The PAC or CPT you expect to review your project: > > Solaris PAC > > 1.4.2. The ARC(s) you expect to review your project: > > LSARC > > 1.4.3. The Director/VP who is "Sponsoring" this project: > > robert.odea@sun.com > > 1.4.4. The name of your business unit: > > New Solaris Group, Desktop > > 1.5. Email Aliases: > > 1.5.1. Responsible Manager: > > leo.binchy@sun.com > > 1.5.2. Responsible Engineer: > > alfred.peng@sun.com > > 1.5.3. Marketing Manager: > > glynn.foster@sun.com > > 1.5.4. Interest List: > > desktop-discuss@opensolaris.org > > 4. Technical Description: > 4.1. Details: > Coherence is a DLNA (Digital Living Network Alliance)/UPnP (Universal > Plug and Play) Framework written in Python for the Digital Living. > > The goals of UPnP are to allow devices to connect seamlessly and to > simplify the implementation of networks in the home (data sharing, > communications, and entertainment) and in corporate environments for > simplified installation of computer components. With the UPnP framework, > users can setup their home media center with PCs, wireless devices > (mobile phones, tablet PCs etc.) and networked appliances (TVs, audio > players, multimedia players, games consoles etc.)[2]. > > Coherence is divided into three main parts: the core, the virtual > devices, and the device backends[3]. The core of coherence provides an > implementation of: a SSDP (Simple Service Discovery Protocol) [4] > server, a MSEARCH (command to find other devices connected to the > UPnP network) client to find other devices connected to the network, > server and client for HTTP/SOAP requests, server and client for Event > Subscription and Notification. > > The virtual devices contain: Media Server to provide media content > (local storage or online services) and directory information, > Media Renderer to play back media content provided by the Media Server, > Control Point to interconnect Media Server and Media Renderer. The > virtual device implementation registers with the core, declares which > service interfaces it is using, and attaches callbacks which map the > service actions to its backend. It's generally a translation map > between the core and the device backend. > > The device backend is the part to host, render and control the media > files. The following components could act as the device backend: file > systems to store the media files, audio/video hardware and desktop GUI > applications to render the media content and control the playback. > > For users, coherence can be used in conjunction with Rhythmbox, Totem or > Elisa, and become a controllable DLNA/UPnP Media Renderer. For example, > coherence is used in Elisa to talk with the Apple Movie trailer Media > Server for its Movie trailer plugin and YouTube Media Server for its > YouTube plugin. Coherence can also be configured as a DLNA/UPnP Media > Server and exports local and remote media files via its backend to > other UPnP clients. > > Developers get a python framework with an emerging DBus API. This > framework is designed to automate all UPnP-related tasks as much as > possible and enable applications to participate in digital living > networks. > > In short, coherence provides two main features to the system: > - Interfaces so that programs like elisa, rhythmbox, totem, etc. can > act as Media Renderer/Control Point and connect to the UPnP servers > on the internet. > - Interfaces so that an UPnP Media Server can be set up on the system. > > 4.2. Bug/RFE Number(s): > > None. > > 4.3. In Scope: > > See above. > > 4.4. Out of Scope: > > See above. > > 4.5. Interfaces: > > Exported Interface > -------------------------------------------------------------------- > Interface Name Classification Comment > -------------------------------------------------------------------- > SUNWpython-coherence Uncommitted Package name > /usr/bin/coherence Volatile Coherence CLI to > start the server > $HOME/.coherence Private Config file > /usr/lib/python2.4/vendor-packages/Coherence*.egg-info > Uncommitted Python egg files > /usr/lib/python2.4/vendor-packages/coherence > Uncommitted Python API > /usr/lib/python2.6/vendor-packages/Coherence*.egg-info > Uncommitted Python egg files > /usr/lib/python2.6/vendor-packages/coherence > Uncommitted Python API > > > Imported Interface > -------------------------------------------------------------------- > Interface Classification Comment > -------------------------------------------------------------------- > Python External PSARC/2005/532 Python > Evolving Migration from /usr/sfw to /usr > and upgrade to v2.4.x > Python 2.6 Uncommitted PSARC/2009/043 > Python Twisted Uncommitted PSARC/2008/121 > Python Setuptools Uncommitted PSARC/2008/084 > > 4.6. Doc Impact: > > coherence.1 > > 4.7. Admin/Config Impact: > > Coherence looks for the configuration file named .coherence in $HOME by > default during server startup. Alternatively with the option > -c|--configfile the location of the configuration file can be passed. > In the configuration file, the following parameters can be specified: > log level, log file, interface definition for systems with more than > one physical interface, serverport tells coherence the port to listen > on and the plugins that will be activated. > > The configuration options can be also passed to coherence through > commandline during startup. If no configuration is specified, the > default value will be used for coherence server. > > 4.8. HA Impact: > > None. > > 4.9. I18N/L10N Impact: > > The JDS team and the G11N team are working together to evaluate and > provide I18N/L10N support. > > 4.10. Packaging& Delivery: > > Adds new package, SUNWpython-coherence. > > 4.11. Security Impact: > > Coherence implements the functions to download https page to a > string/file by importing the Python Twisted ssl module via > twisted.internet. > > The security concern for UPnP is the lack of device authentication, > especially for Internet gateway devices[5]. Coherence doesn't provide > an Internet gateway device implementation now. It's designed to work > in the home network. The media files won't be propagate to the Internet > through multicast. When installed on a gateway, the media files are > reachable from the outside via http. > > 4.12. Dependencies: > > The following versions of the imported interfaces are required: > > Python 2.4.x > Python 2.6 > Python Twisted > Python Setuptools > > 5. Reference Documents: > > [1] Coherence homepage: > http://coherence.beebits.net/ > > [2] The DLNA/UPnP devices supported by Coherence: > http://coherence.beebits.net/wiki/SupportedDevices > > [3] Coherence architectural overview: > http://coherence.beebits.net/wiki/ArchitecturalOverview > > [4] SSDP: > http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol > > [5] UPnP security concern: > http://en.wikipedia.org/wiki/Universal_Plug_and_Play#Lack_of_Default_Authentication > > [6] Related ARC cases: > PSARC/2005/532: Python migration from /usr/sfw to /usr > and upgrade to v2.4.x > PSARC/2008/121: Python Twisted > PSARC/2008/084: Python Setuptools > PSARC/2009/043: Python 2.6 > > 6. Resources and Schedule > 6.4. Steering Committee requested information > 6.4.1. Consolidation C-team Name: > Desktop > 6.5. ARC review type: FastTrack > 6.6. ARC Exposure: open > > _______________________________________________ > desktop-discuss mailing list > desktop-discuss@opensolaris.org From Darren.Moffat@Sun.COM Fri Apr 24 02:22:55 2009 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3O9Mr97027278 for ; Fri, 24 Apr 2009 02:22:53 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by sunmail5.uk.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n3O9MhM9026649 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 24 Apr 2009 10:22:52 +0100 (BST) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIL00K1DM23ZX00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 02:22:51 -0700 (PDT) Received: from gmp-eb-inf-1.sun.com ([192.18.6.21]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIL00I4AM22RX70@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 02:22:50 -0700 (PDT) Received: from fe-emea-10.sun.com (gmp-eb-lb-2-fe2.eu.sun.com [192.18.6.11]) by gmp-eb-inf-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n3O9MnYw020758 for ; Fri, 24 Apr 2009 09:22:49 +0000 (GMT) Received: from conversion-daemon.fe-emea-10.sun.com by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIL00800LMIEG00@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 10:22:49 +0100 (BST) Received: from [192.168.1.103] (cpc2-rdng20-2-0-cust917.15-3.cable.virginmedia.com [86.28.167.150]) by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIL00MZKM1Y7B40@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 24 Apr 2009 10:22:49 +0100 (BST) Date: Fri, 24 Apr 2009 10:22:47 +0100 From: Darren J Moffat Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49F164DB.4000006@sun.com> Sender: Darren.Moffat@Sun.COM To: Brian Cameron Cc: LSARC-ext@Sun.COM, Alfred Peng , desktop-discuss@opensolaris.org Message-id: <49F184E7.3030500@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49F164DB.4000006@sun.com> User-Agent: Thunderbird 2.0.0.18 (X11/20090211) Status: RO Content-Length: 931 Brian Cameron wrote: > > As agreed at the last LSARC meeting, I am closing this case as approved > on 04/21/2009. > > Overall, this case was non-controversial. There was some discussion > about how some features of coherence are disabled if the user doesn't > have the appropriate GStreamer plugins installed. Features that depend > on non-free media formats, for example, are disabled until the user > installs the needed GStreamer plugin. For example, Alfred verified > that if the user installs the Fluendo plugins that this enables > coherence support for those formats. I don't believe the issue of an SMF service for Coherence was addressed. The main Coherence site even has an SMF service, with what I'd regard as a suitable FMRI. It even has it running as a non root user. A system wide upnp service for this makes a lot of sense to me. http://coherence.beebits.net/wiki/SolarisInstallation -- Darren J Moffat From Alfred.Peng@sun.com Fri Apr 24 06:56:02 2009 Received: from sunmail4.singapore.sun.com (sunmail4.Singapore.Sun.COM [129.158.71.19]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3ODu1rm026994 for ; Fri, 24 Apr 2009 06:56:01 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail4.singapore.sun.com (8.13.4+Sun/8.13.3/ENSMAIL,v2.2) with ESMTP id n3ODteYF022240 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 24 Apr 2009 21:56:00 +0800 (SGT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIL00G27YP96900@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 07:55:57 -0600 (MDT) Received: from sineb-mail-1.sun.com ([192.18.19.6]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIL00BKUYP72B30@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 07:55:56 -0600 (MDT) Received: from fe-apac-06.sun.com (fe-apac-06.sun.com [192.18.19.177] (may be forged)) by sineb-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n3ODts75003164 for ; Fri, 24 Apr 2009 13:55:54 +0000 (GMT) Received: from conversion-daemon.mail-apac.sun.com by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIL00100YC98D00@mail-apac.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 21:55:54 +0800 (SGT) Received: from [192.168.1.71] ([unknown] [116.15.156.239]) by mail-apac.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIL00054YP15H20@mail-apac.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 21:55:54 +0800 (SGT) Date: Fri, 24 Apr 2009 21:55:50 +0800 From: Alfred Peng Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49F184E7.3030500@Sun.COM> Sender: Alfred.Peng@sun.com To: Darren J Moffat Cc: Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49F1C4E6.60709@sun.com> MIME-version: 1.0 Content-type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49F164DB.4000006@sun.com> <49F184E7.3030500@Sun.COM> User-Agent: Thunderbird 2.0.0.19 (X11/20090306) Status: RO Content-Length: 1484 Hi Darren, Thanks for the pointer. The SMF approach from the link looks good to me and it works fine on my box. The following three files and one folder will be included in the package. -r-xr-xr-x root bin /lib/svc/method/coherence drwxrwxr-x upnp nas /var/coherence -rw-r--r-- upnp nas /var/coherence/coherence.conf -rw-r--r-- root sys /var/svc/manifest/application/coherence.xml And the group "nas" and user "upnp" will be created as the pointer suggests. Best Regards, -Alfred Darren J Moffat wrote: > Brian Cameron wrote: > >> As agreed at the last LSARC meeting, I am closing this case as approved >> on 04/21/2009. >> >> Overall, this case was non-controversial. There was some discussion >> about how some features of coherence are disabled if the user doesn't >> have the appropriate GStreamer plugins installed. Features that depend >> on non-free media formats, for example, are disabled until the user >> installs the needed GStreamer plugin. For example, Alfred verified >> that if the user installs the Fluendo plugins that this enables >> coherence support for those formats. >> > > I don't believe the issue of an SMF service for Coherence was addressed. > > The main Coherence site even has an SMF service, with what I'd regard as > a suitable FMRI. It even has it running as a non root user. A system > wide upnp service for this makes a lot of sense to me. > > http://coherence.beebits.net/wiki/SolarisInstallation > > -- > Darren J Moffat > From Darren.Moffat@sun.com Fri Apr 24 07:00:56 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3OE0uVB027150 for ; Fri, 24 Apr 2009 07:00:56 -0700 (PDT) Received: from nwk-avmta-2.sfbay.sun.com (nwk-avmta-2.SFBay.Sun.COM [129.145.155.6]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n3OE0MSx060077 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 24 Apr 2009 08:00:55 -0600 (MDT) Received: from pmxchannel-daemon.nwk-avmta-2.sfbay.sun.com by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIL00D4BYXHTJ00@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 07:00:53 -0700 (PDT) Received: from gmp-eb-inf-1.sun.com ([192.18.6.21]) by nwk-avmta-2.sfbay.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIL005AIYWZQK80@nwk-avmta-2.sfbay.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 07:00:35 -0700 (PDT) Received: from fe-emea-09.sun.com (gmp-eb-lb-1-fe3.eu.sun.com [192.18.6.10]) by gmp-eb-inf-1.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n3OE0YEH004922 for ; Fri, 24 Apr 2009 14:00:34 +0000 (GMT) Received: from conversion-daemon.fe-emea-09.sun.com by fe-emea-09.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIL00E00YETND00@fe-emea-09.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 15:00:34 +0100 (BST) Received: from [192.168.1.103] (cpc2-rdng20-2-0-cust917.15-3.cable.virginmedia.com [86.28.167.150]) by fe-emea-09.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIL00BI4YWLUN60@fe-emea-09.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Fri, 24 Apr 2009 15:00:22 +0100 (BST) Date: Fri, 24 Apr 2009 15:00:22 +0100 From: Darren J Moffat Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49F1C4E6.60709@sun.com> Sender: Darren.Moffat@sun.com To: Alfred Peng Cc: Brian Cameron , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49F1C5F6.3060805@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49F164DB.4000006@sun.com> <49F184E7.3030500@Sun.COM> <49F1C4E6.60709@sun.com> User-Agent: Thunderbird 2.0.0.18 (X11/20090211) Status: RO Content-Length: 700 Alfred Peng wrote: > Hi Darren, > > Thanks for the pointer. The SMF approach from the link looks good to me > and it works fine on my box. The following three files and one folder > will be included in the package. > > -r-xr-xr-x root bin /lib/svc/method/coherence > drwxrwxr-x upnp nas /var/coherence > -rw-r--r-- upnp nas /var/coherence/coherence.conf > -rw-r--r-- root sys /var/svc/manifest/application/coherence.xml > > And the group "nas" and user "upnp" will be created as the pointer suggests. I'd rather you didn't create a group called "nas" instead use "upnp" as the group name. Since there is nothing NAS (Network Attached Storage) about this case and Coherence. -- Darren J Moffat From Brian.Cameron@sun.com Mon Apr 27 18:32:10 2009 Received: from sunmail5.uk.sun.com (sunmail5.UK.Sun.COM [129.156.85.165]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3S1W8hE029886 for ; Mon, 27 Apr 2009 18:32:09 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by sunmail5.uk.sun.com (8.13.8+Sun/8.13.8/ENSMAIL,v2.2) with ESMTP id n3S1W702028582 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Tue, 28 Apr 2009 02:32:08 +0100 (BST) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIS00B0ZEXJHQ00@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Mon, 27 Apr 2009 19:32:07 -0600 (MDT) Received: from brmea-mail-1.sun.com ([192.18.98.31]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIS008P1EXIJC10@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@Sun.COM); Mon, 27 Apr 2009 19:32:06 -0600 (MDT) Received: from fe-amer-09.sun.com ([192.18.109.79]) by brmea-mail-1.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n3S1W6V8020097 for ; Tue, 28 Apr 2009 01:32:06 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIS00G00EW97800@mail-amer.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Mon, 27 Apr 2009 19:32:06 -0600 (MDT) Received: from [192.168.1.70] ([unknown] [189.137.184.97]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIS00FLREXE7Q90@mail-amer.sun.com> for LSARC-ext@Sun.COM (ORCPT LSARC-ext@Sun.COM); Mon, 27 Apr 2009 19:32:05 -0600 (MDT) Date: Mon, 27 Apr 2009 20:32:05 -0500 From: Brian Cameron Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49F1C5F6.3060805@Sun.COM> Sender: Brian.Cameron@sun.com To: Darren J Moffat Cc: Alfred Peng , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49F65C95.1020100@sun.com> MIME-version: 1.0 Content-type: multipart/mixed; boundary="Boundary_(ID_2nnalEkhgk5WsfEaA36tPQ)" X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49F164DB.4000006@sun.com> <49F184E7.3030500@Sun.COM> <49F1C4E6.60709@sun.com> <49F1C5F6.3060805@Sun.COM> User-Agent: Mozilla/5.0 (X11; U; SunOS i86pc; en-US; rv:1.9.1b3pre) Gecko/20090420 Thunderbird/3.0b2 Status: RO Content-Length: 13526 This is a multi-part message in MIME format. --Boundary_(ID_2nnalEkhgk5WsfEaA36tPQ) Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT LSARC/Darren: I have updated the case materials to indicate that we will be delivering the SMF integration files, and using the user "upnp". See updated onepager, and a diff-file showing the changes since the last version. Aside from adding information about the SMF interfaces, we also added some text to explain in more detail how coherence uses GStreamer for transcoding, and which specific transcodings are supported and which are not by default. Since many people seemed to have questions about this, we felt it would be good to explain in more detail. Since this addresses the last of the issues raised, I think this case can now be considered closed. I updated the IAM file to indicate that it is closed approved today (04/27). Thanks again, Brian --Boundary_(ID_2nnalEkhgk5WsfEaA36tPQ) Content-type: text/plain; name=onepager-coherence.txt Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=onepager-coherence.txt Copyright 2009 Sun Microsystems 1. Introduction 1.1. Project/Component Working Name: Coherence 1.2. Name of Document Author/Supplier: Alfred Peng 1.3. Date of This Document: 03/13/2009 1.3.1. Date this project was conceived: 07/12/2007 1.4. Name of Major Document Customer(s)/Consumer(s): 1.4.1. The PAC or CPT you expect to review your project: Solaris PAC 1.4.2. The ARC(s) you expect to review your project: LSARC 1.4.3. The Director/VP who is "Sponsoring" this project: robert.odea@sun.com 1.4.4. The name of your business unit: New Solaris Group, Desktop 1.5. Email Aliases: 1.5.1. Responsible Manager: leo.binchy@sun.com 1.5.2. Responsible Engineer: alfred.peng@sun.com 1.5.3. Marketing Manager: glynn.foster@sun.com 1.5.4. Interest List: desktop-discuss@opensolaris.org 4. Technical Description: 4.1. Details: Coherence is a DLNA (Digital Living Network Alliance)/UPnP (Universal Plug and Play) Framework written in Python for the Digital Living. The goals of UPnP are to allow devices to connect seamlessly and to simplify the implementation of networks in the home (data sharing, communications, and entertainment) and in corporate environments for simplified installation of computer components. With the UPnP framework, users can setup their home media center with PCs, wireless devices (mobile phones, tablet PCs etc.) and networked appliances (TVs, audio players, multimedia players, games consoles etc.)[2]. Coherence is divided into three main parts: the core, the virtual devices, and the device backends[3]. The core of coherence provides an implementation of: a SSDP (Simple Service Discovery Protocol) [4] server, a MSEARCH (command to find other devices connected to the UPnP network) client to find other devices connected to the network, server and client for HTTP/SOAP requests, server and client for Event Subscription and Notification. The virtual devices contain: Media Server to provide media content (local storage or online services) and directory information, Media Renderer to play back media content provided by the Media Server, Control Point to interconnect Media Server and Media Renderer. The virtual device implementation registers with the core, declares which service interfaces it is using, and attaches callbacks which map the service actions to its backend. It's generally a translation map between the core and the device backend. The device backend is the part to host, render and control the media files. The following components could act as the device backend: file systems to store the media files, audio/video hardware and desktop GUI applications to render the media content and control the playback. For users, coherence can be used in conjunction with Rhythmbox, Totem or Elisa, and become a controllable DLNA/UPnP Media Renderer. For example, coherence is used in Elisa to talk with the Apple Movie trailer Media Server for its Movie trailer plugin and YouTube Media Server for its YouTube plugin. Coherence can also be configured as a DLNA/UPnP Media Server and exports local and remote media files via its backend to other UPnP clients. Developers get a python framework with an emerging DBus API. This framework is designed to automate all UPnP-related tasks as much as possible and enable applications to participate in digital living networks. In short, coherence provides two main features to the system: - Interfaces so that programs like elisa, rhythmbox, totem, etc. can act as Media Renderer/Control Point and connect to the UPnP servers on the internet. - Interfaces so that an UPnP Media Server can be set up on the system. Coherence media server can do audio/video/thumbnail transcoding by making use of GStreamer's decode/encode elements via the GStreamer Python bindings. Currently, Coherence supports the following transcodings: - ogg->pcm by using decodebin/audioconvert GStreamer elements. - ogg->wav by using decodebin/audioconvert/wavenc GStreamer elements. - ogg->mp3 doesn't work as it requires encumbered GStreamer element. - jpeg thumbnail by using jpegdec/videoscale/jpegenc GStreamer elements. - video transcoding doesn't work as it requires encumbered GStreamer element. SMF service svc:/application/upnp/coherence:default will be created to manage the coherence server. The server will run with user upnp and group upnp. 4.2. Bug/RFE Number(s): None. 4.3. In Scope: See above. 4.4. Out of Scope: See above. 4.5. Interfaces: Exported Interface -------------------------------------------------------------------- Interface Name Classification Comment -------------------------------------------------------------------- SUNWpython24-coherence Uncommitted Package name for 2.4 bindings. SUNWpython26-coherence Uncommitted Package name for 2.6 bindings. /usr/bin/coherence Volatile Coherence CLI to start the server /lib/svc/method/coherence Volatile SMF control script /var/coherence/coherence* Private Config file and log /var/svc/manifest/application/coherence.xml SMF manifest Volatile $HOME/.coherence Private Config file /usr/lib/python2.4/vendor-packages/Coherence*.egg-info Uncommitted Python egg files /usr/lib/python2.4/vendor-packages/coherence Uncommitted Python API /usr/lib/python2.6/vendor-packages/Coherence*.egg-info Uncommitted Python egg files /usr/lib/python2.6/vendor-packages/coherence Uncommitted Python API Imported Interface -------------------------------------------------------------------- Interface Classification Comment -------------------------------------------------------------------- Python External PSARC/2005/532 Python Evolving Migration from /usr/sfw to /usr and upgrade to v2.4.x Python 2.6 Uncommitted PSARC/2009/043 Python Twisted Uncommitted PSARC/2008/121 Python Setuptools Uncommitted PSARC/2008/084 GStreamer Python Volatile PSARC/2008/105 4.6. Doc Impact: coherence.1 4.7. Admin/Config Impact: Coherence looks for the configuration file named .coherence in $HOME by default during server startup. Alternatively with the option -c|--configfile the location of the configuration file can be passed. In the configuration file, the following parameters can be specified: log level, log file, interface definition for systems with more than one physical interface, serverport tells coherence the port to listen on and the plugins that will be activated. The configuration options can be also passed to coherence through commandline during startup. If no configuration is specified, the default value will be used for coherence server. 4.8. HA Impact: None. 4.9. I18N/L10N Impact: The JDS team and the G11N team are working together to evaluate and provide I18N/L10N support. 4.10. Packaging & Delivery: Adds new package, SUNWpython-coherence. 4.11. Security Impact: Coherence implements the functions to download https page to a string/file by importing the Python Twisted ssl module via twisted.internet. The security concern for UPnP is the lack of device authentication, especially for Internet gateway devices[5]. Coherence doesn't provide an Internet gateway device implementation now. It's designed to work in the home network. The media files won't be propagate to the Internet through multicast. When installed on a gateway, the media files are reachable from the outside via http. 4.12. Dependencies: The following versions of the imported interfaces are required: Python 2.4.x Python 2.6 Python Twisted Python Setuptools 5. Reference Documents: [1] Coherence homepage: http://coherence.beebits.net/ [2] The DLNA/UPnP devices supported by Coherence: http://coherence.beebits.net/wiki/SupportedDevices [3] Coherence architectural overview: http://coherence.beebits.net/wiki/ArchitecturalOverview [4] SSDP: http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol [5] UPnP security concern: http://en.wikipedia.org/wiki/Universal_Plug_and_Play#Lack_of_Default_Authentication [6] Related ARC cases: PSARC/2005/532: Python migration from /usr/sfw to /usr and upgrade to v2.4.x PSARC/2008/121: Python Twisted PSARC/2008/084: Python Setuptools PSARC/2009/043: Python 2.6 --Boundary_(ID_2nnalEkhgk5WsfEaA36tPQ) Content-type: text/plain; name=coherence.diff Content-transfer-encoding: 7BIT Content-disposition: attachment; filename=coherence.diff --- /home/bc99092/onepager-coherence.txt-old Mon Apr 27 18:25:37 2009 +++ onepager-coherence.txt Mon Apr 27 18:25:42 2009 @@ -107,9 +107,21 @@ on the internet. - Interfaces so that an UPnP Media Server can be set up on the system. - Note that the coherence media server can do transcoding. This code - makes use of GStreamer via the GStreamer Python bindings. + Coherence media server can do audio/video/thumbnail transcoding by + making use of GStreamer's decode/encode elements via the GStreamer + Python bindings. Currently, Coherence supports the following + transcodings: + - ogg->pcm by using decodebin/audioconvert GStreamer elements. + - ogg->wav by using decodebin/audioconvert/wavenc GStreamer elements. + - ogg->mp3 doesn't work as it requires encumbered GStreamer element. + - jpeg thumbnail by using jpegdec/videoscale/jpegenc GStreamer elements. + - video transcoding doesn't work as it requires encumbered GStreamer + element. + SMF service svc:/application/upnp/coherence:default will be created to + manage the coherence server. The server will run with user upnp and + group upnp. + 4.2. Bug/RFE Number(s): None. @@ -134,6 +146,10 @@ 2.6 bindings. /usr/bin/coherence Volatile Coherence CLI to start the server + /lib/svc/method/coherence Volatile SMF control script + /var/coherence/coherence* Private Config file and log + /var/svc/manifest/application/coherence.xml SMF manifest + Volatile $HOME/.coherence Private Config file /usr/lib/python2.4/vendor-packages/Coherence*.egg-info Uncommitted Python egg files --Boundary_(ID_2nnalEkhgk5WsfEaA36tPQ)-- From Darren.Moffat@sun.com Tue Apr 28 04:47:19 2009 Received: from sunmail3mpk.sfbay.sun.com (sunmail3mpk.SFBay.Sun.COM [129.146.11.52]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n3SBlJU3000476 for ; Tue, 28 Apr 2009 04:47:19 -0700 (PDT) Received: from nwk-avmta-1.SFBay.Sun.COM (nwk-avmta-1.SFBay.Sun.COM [129.146.11.74]) by sunmail3mpk.sfbay.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n3SBlJtd012625 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Tue, 28 Apr 2009 04:47:19 -0700 (PDT) Received: from pmxchannel-daemon.nwk-avmta-1.sfbay.Sun.COM by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KIT00F037EU9P00@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 28 Apr 2009 04:47:18 -0700 (PDT) Received: from gmp-eb-inf-2.sun.com ([192.18.6.24]) by nwk-avmta-1.sfbay.Sun.COM (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KIT00K9Z7ET8DF0@nwk-avmta-1.sfbay.Sun.COM> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 28 Apr 2009 04:47:18 -0700 (PDT) Received: from fe-emea-10.sun.com (gmp-eb-lb-1-fe3.eu.sun.com [192.18.6.10]) by gmp-eb-inf-2.sun.com (8.13.7+Sun/8.12.9) with ESMTP id n3SBlHZd028266 for ; Tue, 28 Apr 2009 11:47:17 +0000 (GMT) Received: from conversion-daemon.fe-emea-10.sun.com by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) id <0KIT006006X4KN00@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 28 Apr 2009 12:47:17 +0100 (BST) Received: from [192.168.1.104] (cpc2-rdng20-2-0-cust917.15-3.cable.virginmedia.com [86.28.167.150]) by fe-emea-10.sun.com (Sun Java(tm) System Messaging Server 7.0-5.01 64bit (built Feb 19 2009)) with ESMTPSA id <0KIT00JEX7EF2S70@fe-emea-10.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Tue, 28 Apr 2009 12:47:04 +0100 (BST) Date: Tue, 28 Apr 2009 10:47:35 +0100 From: Darren J Moffat Subject: Re: [desktop-discuss] Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <49F65C95.1020100@sun.com> Sender: Darren.Moffat@sun.com To: Brian Cameron Cc: Alfred Peng , LSARC-ext@sun.com, desktop-discuss@opensolaris.org Message-id: <49F6D0B7.1070601@Sun.COM> MIME-version: 1.0 Content-type: text/plain; format=flowed; charset=ISO-8859-1 Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> <49F164DB.4000006@sun.com> <49F184E7.3030500@Sun.COM> <49F1C4E6.60709@sun.com> <49F1C5F6.3060805@Sun.COM> <49F65C95.1020100@sun.com> User-Agent: Thunderbird 2.0.0.18 (X11/20090211) Status: RO Content-Length: 965 Brian Cameron wrote: > > LSARC/Darren: > > I have updated the case materials to indicate that we will be delivering > the SMF integration files, and using the user "upnp". See updated > onepager, and a diff-file showing the changes since the last version. > > Aside from adding information about the SMF interfaces, we also added > some text to explain in more detail how coherence uses GStreamer for > transcoding, and which specific transcodings are supported and which > are not by default. Since many people seemed to have questions about > this, we felt it would be good to explain in more detail. > > Since this addresses the last of the issues raised, I think this case > can now be considered closed. I updated the IAM file to indicate that > it is closed approved today (04/27). Thanks, I'm very happy with the final spec. As an aside I'm waiting on this for a future LOSUG presentation on "OpenSolaris for the living room". -- Darren J Moffat From Brian.Cameron@Sun.COM Fri Jun 5 10:15:04 2009 Received: from newsunmail1brm.central.sun.com (newsunmail1brm.Central.Sun.COM [129.147.62.245]) by sac.sfbay.sun.com (8.13.8+Sun/8.13.8) with ESMTP id n55HF3PW016141 for ; Fri, 5 Jun 2009 10:15:03 -0700 (PDT) Received: from brm-avmta-1.central.sun.com (brm-avmta-1.Central.Sun.COM [129.147.4.11]) by newsunmail1brm.central.sun.com (8.13.7+Sun/8.13.7/ENSMAIL,v2.2) with ESMTP id n55HF2kp007919 for <@sunmail2sca.sfbay.sun.com:LSARC-ext@sun.com>; Fri, 5 Jun 2009 11:15:03 -0600 (MDT) Received: from pmxchannel-daemon.brm-avmta-1.central.sun.com by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) id <0KKR00B0JZX2SM00@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 05 Jun 2009 11:15:02 -0600 (MDT) Received: from brmea-mail-4.sun.com ([192.18.98.36]) by brm-avmta-1.central.sun.com (Sun Java System Messaging Server 6.2-3.04 (built Jul 15 2005)) with ESMTP id <0KKR00DEMZX19VE0@brm-avmta-1.central.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 05 Jun 2009 11:15:01 -0600 (MDT) Received: from fe-amer-10.sun.com ([192.18.109.80]) by brmea-mail-4.sun.com (8.13.6+Sun/8.12.9) with ESMTP id n55HF1h3022548 for ; Fri, 05 Jun 2009 17:15:01 +0000 (GMT) Received: from conversion-daemon.mail-amer.sun.com by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7u2-7.02 64bit (built Apr 16 2009)) id <0KKR00700Z0X7400@mail-amer.sun.com> for LSARC-ext@sun.com (ORCPT LSARC-ext@sun.com); Fri, 05 Jun 2009 11:15:01 -0600 (MDT) Received: from [129.153.250.170] ([unknown] [129.153.250.170]) by mail-amer.sun.com (Sun Java(tm) System Messaging Server 7u2-7.02 64bit (built Apr 16 2009)) with ESMTPSA id <0KKR007FVZWU2G90@mail-amer.sun.com>; Fri, 05 Jun 2009 11:14:54 -0600 (MDT) Date: Fri, 05 Jun 2009 12:15:01 -0500 From: Brian Cameron Subject: Re: Coherence [LSARC/2009/199 FastTrack timeout 04/08/2009] In-reply-to: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> Sender: Brian.Cameron@Sun.COM To: Brian Cameron Cc: LSARC-ext@Sun.COM, Alfred.Peng@Sun.COM, desktop-discuss@opensolaris.org Message-id: <4A295295.70208@sun.com> MIME-version: 1.0 Content-type: text/plain; CHARSET=US-ASCII; format=flowed Content-transfer-encoding: 7BIT X-PMX-Version: 5.4.1.325704 References: <200903260424.n2Q4OsVj023965@sac.sfbay.sun.com> User-Agent: Thunderbird 2.0.0.21 (X11/20090505) Status: RO Content-Length: 10348 A minor change to the coherence onepager. The following package was added to the Exported Interface table to contain the SMF integration files. SUNWpython24-coherence-root Uncommitted Package name to contain SMF integration files. And also section 4.10 was updated to list the new package name as well: 4.10. Packaging & Delivery: Adds new packages: SUNWpython24-coherence, SUNWpython24-coherence-root, and SUNWpython26-coherence Brian Brian Cameron wrote: > Template Version: @(#)sac_nextcase 1.68 02/23/09 SMI > This information is Copyright 2009 Sun Microsystems > 1. Introduction > 1.1. Project/Component Working Name: > Coherence > 1.2. Name of Document Author/Supplier: > Author: Alfred Peng > 1.3 Date of This Document: > 25 March, 2009 > 4. Technical Description > Copyright 2009 Sun Microsystems > > 1. Introduction > 1.1. Project/Component Working Name: > > Coherence > > 1.2. Name of Document Author/Supplier: > > Alfred Peng > > 1.3. Date of This Document: > > 03/13/2009 > > 1.3.1. Date this project was conceived: > > 07/12/2007 > > 1.4. Name of Major Document Customer(s)/Consumer(s): > > 1.4.1. The PAC or CPT you expect to review your project: > > Solaris PAC > > 1.4.2. The ARC(s) you expect to review your project: > > LSARC > > 1.4.3. The Director/VP who is "Sponsoring" this project: > > robert.odea@sun.com > > 1.4.4. The name of your business unit: > > New Solaris Group, Desktop > > 1.5. Email Aliases: > > 1.5.1. Responsible Manager: > > leo.binchy@sun.com > > 1.5.2. Responsible Engineer: > > alfred.peng@sun.com > > 1.5.3. Marketing Manager: > > glynn.foster@sun.com > > 1.5.4. Interest List: > > desktop-discuss@opensolaris.org > > 4. Technical Description: > 4.1. Details: > Coherence is a DLNA (Digital Living Network Alliance)/UPnP (Universal > Plug and Play) Framework written in Python for the Digital Living. > > The goals of UPnP are to allow devices to connect seamlessly and to > simplify the implementation of networks in the home (data sharing, > communications, and entertainment) and in corporate environments for > simplified installation of computer components. With the UPnP framework, > users can setup their home media center with PCs, wireless devices > (mobile phones, tablet PCs etc.) and networked appliances (TVs, audio > players, multimedia players, games consoles etc.)[2]. > > Coherence is divided into three main parts: the core, the virtual > devices, and the device backends[3]. The core of coherence provides an > implementation of: a SSDP (Simple Service Discovery Protocol) [4] > server, a MSEARCH (command to find other devices connected to the > UPnP network) client to find other devices connected to the network, > server and client for HTTP/SOAP requests, server and client for Event > Subscription and Notification. > > The virtual devices contain: Media Server to provide media content > (local storage or online services) and directory information, > Media Renderer to play back media content provided by the Media Server, > Control Point to interconnect Media Server and Media Renderer. The > virtual device implementation registers with the core, declares which > service interfaces it is using, and attaches callbacks which map the > service actions to its backend. It's generally a translation map > between the core and the device backend. > > The device backend is the part to host, render and control the media > files. The following components could act as the device backend: file > systems to store the media files, audio/video hardware and desktop GUI > applications to render the media content and control the playback. > > For users, coherence can be used in conjunction with Rhythmbox, Totem or > Elisa, and become a controllable DLNA/UPnP Media Renderer. For example, > coherence is used in Elisa to talk with the Apple Movie trailer Media > Server for its Movie trailer plugin and YouTube Media Server for its > YouTube plugin. Coherence can also be configured as a DLNA/UPnP Media > Server and exports local and remote media files via its backend to > other UPnP clients. > > Developers get a python framework with an emerging DBus API. This > framework is designed to automate all UPnP-related tasks as much as > possible and enable applications to participate in digital living > networks. > > In short, coherence provides two main features to the system: > - Interfaces so that programs like elisa, rhythmbox, totem, etc. can > act as Media Renderer/Control Point and connect to the UPnP servers > on the internet. > - Interfaces so that an UPnP Media Server can be set up on the system. > > 4.2. Bug/RFE Number(s): > > None. > > 4.3. In Scope: > > See above. > > 4.4. Out of Scope: > > See above. > > 4.5. Interfaces: > > Exported Interface > -------------------------------------------------------------------- > Interface Name Classification Comment > -------------------------------------------------------------------- > SUNWpython-coherence Uncommitted Package name > /usr/bin/coherence Volatile Coherence CLI to > start the server > $HOME/.coherence Private Config file > /usr/lib/python2.4/vendor-packages/Coherence*.egg-info > Uncommitted Python egg files > /usr/lib/python2.4/vendor-packages/coherence > Uncommitted Python API > /usr/lib/python2.6/vendor-packages/Coherence*.egg-info > Uncommitted Python egg files > /usr/lib/python2.6/vendor-packages/coherence > Uncommitted Python API > > > Imported Interface > -------------------------------------------------------------------- > Interface Classification Comment > -------------------------------------------------------------------- > Python External PSARC/2005/532 Python > Evolving Migration from /usr/sfw to /usr > and upgrade to v2.4.x > Python 2.6 Uncommitted PSARC/2009/043 > Python Twisted Uncommitted PSARC/2008/121 > Python Setuptools Uncommitted PSARC/2008/084 > > 4.6. Doc Impact: > > coherence.1 > > 4.7. Admin/Config Impact: > > Coherence looks for the configuration file named .coherence in $HOME by > default during server startup. Alternatively with the option > -c|--configfile the location of the configuration file can be passed. > In the configuration file, the following parameters can be specified: > log level, log file, interface definition for systems with more than > one physical interface, serverport tells coherence the port to listen > on and the plugins that will be activated. > > The configuration options can be also passed to coherence through > commandline during startup. If no configuration is specified, the > default value will be used for coherence server. > > 4.8. HA Impact: > > None. > > 4.9. I18N/L10N Impact: > > The JDS team and the G11N team are working together to evaluate and > provide I18N/L10N support. > > 4.10. Packaging & Delivery: > > Adds new package, SUNWpython-coherence. > > 4.11. Security Impact: > > Coherence implements the functions to download https page to a > string/file by importing the Python Twisted ssl module via > twisted.internet. > > The security concern for UPnP is the lack of device authentication, > especially for Internet gateway devices[5]. Coherence doesn't provide > an Internet gateway device implementation now. It's designed to work > in the home network. The media files won't be propagate to the Internet > through multicast. When installed on a gateway, the media files are > reachable from the outside via http. > > 4.12. Dependencies: > > The following versions of the imported interfaces are required: > > Python 2.4.x > Python 2.6 > Python Twisted > Python Setuptools > > 5. Reference Documents: > > [1] Coherence homepage: > http://coherence.beebits.net/ > > [2] The DLNA/UPnP devices supported by Coherence: > http://coherence.beebits.net/wiki/SupportedDevices > > [3] Coherence architectural overview: > http://coherence.beebits.net/wiki/ArchitecturalOverview > > [4] SSDP: > http://en.wikipedia.org/wiki/Simple_Service_Discovery_Protocol > > [5] UPnP security concern: > http://en.wikipedia.org/wiki/Universal_Plug_and_Play#Lack_of_Default_Authentication > > [6] Related ARC cases: > PSARC/2005/532: Python migration from /usr/sfw to /usr > and upgrade to v2.4.x > PSARC/2008/121: Python Twisted > PSARC/2008/084: Python Setuptools > PSARC/2009/043: Python 2.6 > > 6. Resources and Schedule > 6.4. Steering Committee requested information > 6.4.1. Consolidation C-team Name: > Desktop > 6.5. ARC review type: FastTrack > 6.6. ARC Exposure: open >