OMwiki:Tech
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(→Known issues:: add firewire_ohci, mention Lumiera) |
(→New Features: clarify thumnail feature, add YUV note) |
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*Add a Vorbis-only option on video streams for low-bandwidth connections. | *Add a Vorbis-only option on video streams for low-bandwidth connections. | ||
| - | *Replace animated GIFs with low-FPS | + | *Replace animated GIFs with low-FPS, enlargeable, jump-to Theora. Alternatively, use [http://pad.ma/ Pad.ma]-style mouse-overs (see [https://wiki.pad.ma/browser/padma.dev/padma/static/javascript/info.js?rev=padma.dev%2C354&order=size&desc=1 <nowiki>$(imagePoster).load(function() {...})</nowiki>]). The thumbnails should cycle through the meeting in large time chunks when non-mouseover'd, and then display clickable frames according the how far the mouse is from the left edge when mouseover'd. |
| - | *Add YUV4MPEG support in [http://www.blender.org/ Blender] to enable direct output to [http://v2v.cc/~j/ffmpeg2theora/ ffmpeg2theora] ([http://lists.mplayerhq.hu/pipermail/libav-user/2009-March/002639.html email thread]) | + | *Add YUV4MPEG support in [http://www.blender.org/ Blender] to enable direct output to [http://v2v.cc/~j/ffmpeg2theora/ ffmpeg2theora] ([http://lists.mplayerhq.hu/pipermail/libav-user/2009-March/002639.html email thread]), building upon Stephan Henningsen's lead. |
*Squash bugs (esp., video non-playback) in mwEmbed's [http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/js2/mwEmbed/libSequencer/ libSequencer]. | *Squash bugs (esp., video non-playback) in mwEmbed's [http://svn.wikimedia.org/viewvc/mediawiki/trunk/phase3/js2/mwEmbed/libSequencer/ libSequencer]. | ||
| - | *Identify a way to output time ranges generated from multi-speaker audio files, with each time range corresponding to the duration of how long a person spoke for ([http://cmusphinx.sourceforge.net/ CMU Sphinx?]). Hopefully add speaker identification based on the vocal profile, and maybe even facial recognition. | + | *Identify a way to output time ranges generated from multi-speaker audio files, with each time range corresponding to the duration of how long a person spoke for ([http://cmusphinx.sourceforge.net/ CMU Sphinx?]). Hopefully add speaker identification based on the vocal profile, and maybe even facial recognition and emotional categorization (''e.g.'', laughter). |
| - | *Figure out a content delivery network. | + | *Figure out a content delivery network and target areas. |
<br/> | <br/> | ||
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==Communicate:== | ==Communicate:== | ||
<!-- *Document and test [https://lists.sourceforge.net/lists/openmeetings-discuss project listserv] [https://lists.sourceforge.net/lists/openmeetings-tech (tech listserv)] --><!-- No need for a new list as of 2009 --> | <!-- *Document and test [https://lists.sourceforge.net/lists/openmeetings-discuss project listserv] [https://lists.sourceforge.net/lists/openmeetings-tech (tech listserv)] --><!-- No need for a new list as of 2009 --> | ||
Revision as of 20:22, 19 October 2009
Known issues:
(Listed in order of severity.)
- Find a way to add style="width:352px;" to embed code in 352×240 streams.
- Speaker labels work for annotations but not transcripts. Also need to figure out AJAX auto-complete magic.
- Search works but has a few issues (punctuation stripped, 'play inline' plays audio although video is paused, search-by-date not yet enabled for all videos)
- Edit MediaWiki:Common.js to download animated gifs only when 'show' is clicked to avoid long page loads.
- Video playback might take ~6 seconds to start for timecodes towards the end of the meeting (pending seeking support in oggz-chop). Also, Google Chrome won't start playback if oggz-chop is used.
- Cinelerra-CV is buggy (compilation from source helps). Document rendering options on other video editors (e.g., XiphQT) and help develop Lumiera.
- Fix severe problems with firewire_ohci/firewire_core talking to DV controller chips. Example ticket
Scripts needed:
- Retool download_from_archive_org.php to work with different source videos and meta tags from the Internet Archive, using this wikipage as a working draft.
- Draft a script to import MetaVidWiki clips from apps that can produce .srt or .cmml captions (e.g., Gnome Subtitles)
- Rework modcopy to avoid mmap calls on JFFS2 filesystems (e.g., the OLPC-XO). Ticket
New Features
- Add a Vorbis-only option on video streams for low-bandwidth connections.
- Replace animated GIFs with low-FPS, enlargeable, jump-to Theora. Alternatively, use Pad.ma-style mouse-overs (see $(imagePoster).load(function() {...})). The thumbnails should cycle through the meeting in large time chunks when non-mouseover'd, and then display clickable frames according the how far the mouse is from the left edge when mouseover'd.
- Add YUV4MPEG support in Blender to enable direct output to ffmpeg2theora (email thread), building upon Stephan Henningsen's lead.
- Squash bugs (esp., video non-playback) in mwEmbed's libSequencer.
- Identify a way to output time ranges generated from multi-speaker audio files, with each time range corresponding to the duration of how long a person spoke for (CMU Sphinx?). Hopefully add speaker identification based on the vocal profile, and maybe even facial recognition and emotional categorization (e.g., laughter).
- Figure out a content delivery network and target areas.
Communicate:
- Join and post to MetaVid-l
- Join #metavid and #mediawiki. No IRC? Click here to join via a webclient.
- Have your work recognized on Sunlight Labs: Projects by contributing code.
Non-technical development
- Please see OMwiki:Volunteer
