> From: metavid-l-request@lists.wikimedia.org
> Subject: MetaVid-l Digest, Vol 11, Issue 6
> To: metavid-l@lists.wikimedia.org
> Date: Mon, 10 Dec 2012 12:00:15 +0000
>
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> Today's Topics:
>
> 1. Re: My metavid installation status as of 3-12-2012 (George Chriss)
> 2. Re: Updated: My metavid installation status as of 3-12-2012
> (George Chriss)
> 3. Re: Solved: My metavid installation status as of 7-12-2012
> (George Chriss)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sun, 9 Dec 2012 16:51:49 -0500
> From: "George Chriss" <gchriss@openmeetings.org>
> To: "metavid-l@lists.wikimedia.org" <metavid-l@lists.wikimedia.org>
> Cc: ioannis ioannis <ioannisc@hotmail.com>
> Subject: Re: [MetaVid-l] My metavid installation status as of
> 3-12-2012
> Message-ID:
> <4ac9e13c76f6729e659a6c8ee8b2d610.squirrel@cpanel09.myhostcenter.com>
> Content-Type: text/plain;charset=iso-8859-1
>
> On Mon, December 3, 2012 9:01 am, ioannis ioannis wrote:
> >
> > Hi,
> > Following George's comments, I have worked a bit during the weekend on my
> > installation.
> >
> > With the following configuration in apache2.conf I avoided using the
> > relevant rewrite rules in .htaccess and all seems to work fine
> > <IfModule mod_actions.c>
> > ScriptAlias /oggz-chop /usr/bin/oggz-chop.cgi
> > Action application/ogg /oggz-chop.cgi
> > Action video/ogg /oggz-chop.cgi
> > Action audio/ogg /oggz-chop.cgi
> > Action application/ogv /oggz-chop.cgi
> > Action video/ogv /oggz-chop.cgi
> > Action audio/ogv /oggz-chop.cgi
> > </IfModule>
>
> Yup, this one of the two other ways to trigger oggz-chop handing. I think
> AddHandler should work as well.
>
> However there is an important difference in that the above example will
> send all Ogg multimedia through oggz-chop whereas the RewriteCond
> statement in .htaccess will only trigger oggz-chop if there is actually a
> query string present. Without a query string the media is delivered as a
> static file (w/ HTTP Range request support).
>
> This difference affects at least three things: a) md5sum "correctness," b)
> load times, and c) client-side seeking performance.
>
> For a) oggz-chop can and does rewrite some of the header metadata and can
> even omit "extra" Ogg streams listed in RFC3533. Thus, a file uploaded to
> the server will differ from the same one downloaded; consecutive downloads
> will also differ slightly.
>
> For b) the current implementation of oggz-chop starts at byte 0 on the
> media and reads all bytes into memory until the specified time ranges are
> satisfied; once this is completed the media is then sent through Apache to
> the client. For ~1GB recordings read off of a non-SSD drive the delay can
> be around 8 seconds or so. A search algorithm that reads the first few
> Ogg packets, generates a bitrate, uses this to jump-to the approximate
> byte range of interest, and bumps forward/back as needed shouldn't be
> 'hard' to implement -- patches welcome?
>
> On the plus side subsequent requests are read from memory (=temporarily
> fast access) and the Oggz codebase is mostly bullet-proof from a security
> perspective. The folks in #theora are friendly and highly knowledgeable.
>
> For c) some browsers (e.g., Firefox) implement "fast" seeking based on
> byte range requests on raw media. I'm not entirely sure how well this
> interacts with oggz-chop other than to say that a well-trimmed video
> segment (i.e., a 10-min clip delivered w/ oggz-chop and a query string)
> sidesteps the need to do client-side seeking.
>
>
> > I also created two new pages in mediawiki to cater for the relevant input
> > fields when tagging/annotating a video.
> > Property:Bill
> > &
> > Property:Speech By
>
> I created [[Property:Speech by]] with [[has type::page]] myself.
>
> >
> > With the above modifications, I can add new videos and then edit them by
> > adding tags/annotations and transcripts.
> > A few more questions :
> > A)
> > I add a new video from special pages -> metavid add stream
> > I edit the stream and add the video file, also typing in its length, i.e.
> > 0:10:00
>
> 'Duration' listed in the 'Editing Stream:' view should be entered as total
> length in seconds, without punctuation.
>
> > However the video (and all videos imported) show a time length of 0:20:00.
> > Any suggestions on how to make the video pages show the actual video
> > length?
>
> Append '&view=overview' (or, if using Short URLs, '?view=overview') to the
> URL to arrive at an "overview" of the meeting with the entire duration
> displayed. In this view transcripts are shown in logical "chunks" -- for
> example, the entire Q&A portion of a meeting would be be collapsed into a
> single block right after a "closing remarks" block.
>
> To enable AJAX 'Date range' search functionality the 'date_start_time'
> property of the 'mv_streams' MySQL table should match the UNIX timestamp
> of the start of the meeting. The only way I know of entering this data is
> by editing the backend DB directly w/ phpMyAdmin.
>
>
> > B)
> > It seems that I am not able to create a Sequence. From the demo video of
> > metavid, It seems that by using a Sequence:ABCD you can create a sequence
> > where videos can be edited in the timeline.
> > How can I enable this?
>
> Take a look at the following:
> http://openmeetings.org/w/js2/mwEmbed_rev115787/example_usage/
>
> The Sequencer is more of a standalone component of mwEmbed at this point,
> I think?
>
>
> >
> > C)
> > In the new transcript part of editing, there seems to be an image of the
> > person making the speech. In my case its always the missing person.jpg.
> > How can I add my custom picture?
>
> 1) Create [[Template:Person]] with the following:
>
> <div id="profile"><p>{{ #if: {Image:{{PAGENAME}}.jpg}|
> [[Image:{{PAGENAME}}.png|80px]]
> |}}<span>{{#external_value:title}}. {{PAGENAME}} </span></p></div>
>
>
> 2) Create/upload [[File:Firstname_Lastname.jpg]] and
> [[File:Firstname_Lastname.png]] with a 80?99 .jpg/.png images of the
> person.
> 3) In segment edit view, enter Speech by: -> Firsname Lastname such that
> the wikitext contains [[Speech by::Firstname Lastname]]. Do a hard page
> refresh as needed.
>
>
> Cheers,
> George
>
>
> >
> > I do have more questions, but I thinks the above are quite enough for now
> > :)
> >
> > Best Regards
> > Ioannis
> >
> >
> >
> > _______________________________________________
> > MetaVid-l mailing list
> > MetaVid-l@lists.wikimedia.org
> > https://lists.wikimedia.org/mailman/listinfo/metavid-l
> >
>
>
> --
>
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Sun, 9 Dec 2012 17:34:09 -0500
> From: "George Chriss" <gchriss@openmeetings.org>
> To: "metavid-l@lists.wikimedia.org" <metavid-l@lists.wikimedia.org>
> Cc: ioannis ioannis <ioannisc@hotmail.com>
> Subject: Re: [MetaVid-l] Updated: My metavid installation status as of
> 3-12-2012
> Message-ID:
> <64a9b1a824e4ae833ff598918b166fe2.squirrel@cpanel09.myhostcenter.com>
> Content-Type: text/plain;charset=iso-8859-1
>
>
> On Mon, December 3, 2012 4:22 pm, ioannis ioannis wrote:
> >
> > One more update...
> > In the add annotatio or tag box, I do not see the video time slider on the
> > top of the edit box.
> > I believe there is something wrong with my mvembed, perhaps I need another
> > version?
>
> There are differences between version of both MetaVidWiki and mwEmbed.
> Try upgrading/downgrading mwEmbed, yes, but don't be afraid to upgrade
> MetaVidWiki itself -- there's no recent DB schema changes so it's really a
> matter or replacing files in the extensions/ directory and re-applying any
> customizations.
>
> At the moment OpenMeetings.org runs MetaVidWiki rev. 51560 and mwEmbed
> rev. 51518. Your mileage may vary but I do recommend monitoring Firebug
> for errors, esp. with the most-recent versions.
>
> ==
>
> I forgot to mention that Extension:OggHandler and MetaVidWiki require a
> working copy of FFmpeg and now would be a good time to check it's in good
> working condition. My build (circa mid-2009):
>
> FFmpeg version SVN-r19749
> configuration: --disable-demuxers --disable-muxers --disable-decoders
> --disable-encoders --disable-ffserver --disable-ffplay
> --enable-encoder=mjpeg --enable-muxer=mjpeg --enable-decoder=theora
> --enable-demuxer=ogg --disable-network --disable-devices
> --disable-parsers --enable-parser=vp3
>
>
>
> Sincerely,
> George
>
>
> > Using firebug, I compared the mv_embed.js in the openmeetings done section
> > and it seems that this and my version are different.
> > Can you plz suggest what could be wrong?
> > Regards
> > Ioannis
> >
> > From: ioannisc@hotmail.com
> > To: metavid-l@lists.wikimedia.org
> > Subject: My metavid installation status as of 3-12-2012
> > Date: Mon, 3 Dec 2012 14:01:04 +0000
> >
> >
> >
> >
> >
> > Hi,
> > Following George's comments, I have worked a bit during the weekend on my
> > installation.
> >
> > With the following configuration in apache2.conf I avoided using the
> > relevant rewrite rules in .htaccess and all seems to work fine
> > <IfModule mod_actions.c>
> > ScriptAlias /oggz-chop /usr/bin/oggz-chop.cgi
> > Action application/ogg /oggz-chop.cgi
> > Action video/ogg /oggz-chop.cgi
> > Action audio/ogg /oggz-chop.cgi
> > Action application/ogv /oggz-chop.cgi
> > Action video/ogv /oggz-chop.cgi
> > Action audio/ogv /oggz-chop.cgi
> > </IfModule>
> >
> > I also created two new pages in mediawiki to cater for the relevant input
> > fields when tagging/annotating a video.
> > Property:Bill
> > &
> > Property:Speech By
> >
> > With the above modifications, I can add new videos and then edit them by
> > adding tags/annotations and transcripts.
> > A few more questions :
> > A)
> > I add a new video from special pages -> metavid add stream
> > I edit the stream and add the video file, also typing in its length, i.e.
> > 0:10:00
> > However the video (and all videos imported) show a time length of 0:20:00.
> > Any suggestions on how to make the video pages show the actual video
> > length?
> >
> > B)
> > It seems that I am not able to create a Sequence. From the demo video of
> > metavid, It seems that by using a Sequence:ABCD you can create a sequence
> > where videos can be edited in the timeline.
> > How can I enable this?
> >
> > C)
> > In the new transcript part of editing, there seems to be an image of the
> > person making the speech. In my case its always the missing person.jpg.
> > How can I add my custom picture?
> >
> >
> > I do have more questions, but I thinks the above are quite enough for now
> > :)
> >
> > Best Regards
> > Ioannis
> >
> >
> >
> > _______________________________________________
> > MetaVid-l mailing list
> > MetaVid-l@lists.wikimedia.org
> > https://lists.wikimedia.org/mailman/listinfo/metavid-l
> >
>
>
> --
>
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Sun, 9 Dec 2012 17:37:04 -0500
> From: "George Chriss" <gchriss@openmeetings.org>
> To: "metavid-l@lists.wikimedia.org" <metavid-l@lists.wikimedia.org>
> Cc: ioannis ioannis <ioannisc@hotmail.com>
> Subject: Re: [MetaVid-l] Solved: My metavid installation status as of
> 7-12-2012
> Message-ID:
> <0b6cb58bfcde9b2547f3079c78a7eb4d.squirrel@cpanel09.myhostcenter.com>
> Content-Type: text/plain;charset=iso-8859-1
>
>
> On Fri, December 7, 2012 10:46 am, ioannis ioannis wrote:
> >
> > For the uploading problem, after examining the apache error log for php
> > errors, I found the following page with the appropriate patches and after
> > applying it, upload of ogg / ogv files now works properly.
> > http://www.mail-archive.com/mediawiki-cvs@lists.wikimedia.org/msg07933.html
> > My new problem is with the Sequence part of the wiki, which has the
> > following problem:
> >
> > A new sequence is created
> > A video file is added to the sequence
> > Attempting to switch to visual editor shows the visual editor window but
> > does not produce any output, instead it shows for ever "Loading
> > playlist...", "Loading timeline...", "Loading user rights..."
>
> Ah, I show the same. No idea -- I've never used it.
>
> -George
>
>
> > Any suggestions on what to check are very welcome.
> >
> > Regards
> > Ioannis
> >
> > From: ioannisc@hotmail.com
> > To: metavid-l@lists.wikimedia.org
> > Subject: My metavid installation status as of 7-12-2012
> > Date: Fri, 7 Dec 2012 12:43:08 +0000
> >
> >
> >
> >
> >
> > Dear friends,
> >
> > following the much appreciated support from Michael and George, I finally
> > managed to install and configure a working platform consisting of the
> > following elements:
> >
> > Mediawiki 1.16a r52874
> > PHP 5.3.2-1ubuntu4.18 (apache2handler)
> > MySQL 5.1.41-3ubuntu2.10
> >
> > Cite (Version 2008-01-31)
> > ParserFunctions
> > RSS Reader (Version 0.2.3)
> > Semantic MediaWiki (Version 1.3)
> > OggHandler (r42524)
> > MetaVidWiki (Version 1.0r47961)
> >
> > Essentially, the platform is the same as the one on metavid.org site.
> >
> > I am now able to add new streams and tag / transcribe them.
> > My question though has to do with uploading new video content to the site.
> > I have setup all the relevant variables for allowed extensions, file size
> > uploads,etc. If I upload any type of allowed content (i.e. mp4 video, word
> > document, jpeg image) the upload is completed and the new content is
> > available.
> > However, if I try to upload an ogg or ogv file, either directly or by
> > transcoding it by fireogg plugin, the upload does not complete. No errors
> > are produced in the web server or other system logs.
> > Any suggestions on what to look for in order to resolve this ?
> > My current way of uploading content is to copy the file to a folder on the
> > web server and then use the add stream to create a stream and reference to
> > the video file.
> > Also, is there any batch upload / import method available?
> >
> > Regards
> > Ioannis
> >
> >
> >
> > _______________________________________________
> > MetaVid-l mailing list
> > MetaVid-l@lists.wikimedia.org
> > https://lists.wikimedia.org/mailman/listinfo/metavid-l
> >
>
>
> --
>
>
>
>
>
> ------------------------------
>
> _______________________________________________
> MetaVid-l mailing list
> MetaVid-l@lists.wikimedia.org
> https://lists.wikimedia.org/mailman/listinfo/metavid-l
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>
> End of MetaVid-l Digest, Vol 11, Issue 6
> ****************************************