OMwiki:Tech

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*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)
*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)
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Revision as of 23:45, 25 October 2009

Known issues:

(Listed in order of severity.)

  • Find a way to add style="width:352px;" to embed code in 352×240 streams.
  • 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.
  • ffmpeg on Internet Archive servers is ver. 0.5, not recent enough to generate/display thumbnails. Animated thumbnails are now self-generated; static thumbnails are skipped due to the additional work involved.
  • 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)


  • 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:



New Features

  • Add a Vorbis-only option on video streams for low-bandwidth connections.
  • Turn on OpenID sign-ins. Need to figure out how to link non-PEAR libraries to non-re-compilable PHP.
  • Replace animated GIFs with low-FPS, enlargeable, jump-to-timecode 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.
  • 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.

Dreamlist

  • Build open-firmware cameras that records directly to Ogg, that also have simplified on-camera editing.
  • Have those same cameras set to blur-out individuals broadcasting a 'do not record my voice, person, or both' flag. Via iPhones, RFID, or colored sticker as per Yochai Benkler's keynote at OVC 2009.
  • Have individuals appear as virtual avatars in-video (i.e., Second Life-esque), according to their preference.


Communicate:



Non-technical development

All videos and text are published under the CC-BY 3.0 U. S. or CC-BY-SA 3.0. copyright licenses.  Details.