OMwiki:Tech
(Difference between revisions)
(→New Features: facial recognition: better to start with audio) |
(→New Features: add content delivery network) |
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*[http://lists.wikimedia.org/pipermail/metavid-l/2009-August/000055.html Email thread on MetaVid-l] | *[http://lists.wikimedia.org/pipermail/metavid-l/2009-August/000055.html Email thread on MetaVid-l] | ||
| - | * | + | *Add a Vorbis-only option on video streams for low-bandwidth connections. |
| - | * | + | *Replace animated GIFs with low-FPS, clickable, enlargeable 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>]). |
| - | *YUV4MPEG support in [http://www.blender.org/ Blender] | + | *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]) |
*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]. | ||
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*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. | ||
| + | *Figure out a content delivery network. | ||
<br> | <br> | ||
Revision as of 14:59, 20 September 2009
Known issues:
(Listed in order of severity.)
- Videos don't always start playing automatically after 'play' icon is clicked. Bumping the seek marker slightly to the right helps. Might be related to doActualPlay in nativeEmbed.js.
- Find a way to add style="width:352px;" to embed code in 352×240 streams.
- 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)
- Cinelerra-CV is buggy (compilation from source helps)
Scripts needed:
- Retool download_from_archive_org.php to work with different source videos and meta tags from the Internet Archive. Simultaneously generate Media RSS <items> from the same information, and insert date_start_time into mv_streams.
- Script to import MetaVidWiki clips from apps that can produce .srt or .cmml captions (e.g., Gnome Subtitles)
- Find a command-line script that produces .torrents that include multiple HTTP seeds, no tracker, a comment, and works with Mainline.
New Features
- Add a Vorbis-only option on video streams for low-bandwidth connections.
- Replace animated GIFs with low-FPS, clickable, enlargeable Theora. Alternatively, use Pad.ma-style mouse-overs (see $(imagePoster).load(function() {...})).
- Add YUV4MPEG support in Blender to enable direct output to ffmpeg2theora (email thread)
- 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.
- Figure out a content delivery network.
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.
