[IAEP] Programming Needs?

Benjamin M. Schwartz bmschwar at fas.harvard.edu
Mon Jun 8 10:10:38 EDT 2009


Tomeu Vizoso wrote:
> On Mon, Jun 8, 2009 at 06:15, Benjamin M.
> Schwartz<bmschwar at fas.harvard.edu> wrote:
>> One programming project that would help us is described in
>>
>> https://bugzilla.mozilla.org/show_bug.cgi?id=495727
>>
>> Essentially, Firefox 3.5 will ship with beautiful support for Ogg
>> Theora+Vorbis video in every webpage, using the HTML5 <video> tag.
>> Unfortunately, it will almost certainly be deadly slow on the XO and other
>> low-power computers we care about, because it uses a pure software,
>> completely unaccelerated playback pipeline, just like Flash.
>>
>> The fix is to implement a Firefox/Xulrunner extension that plays back
>> videos in a separate window using XVideo, with the option to go
>> full-screen, etc.  For anyone familiar with Firefox extensions this would
>> not be hard at all, and would be a big win for us, thanks to sites like
>> openvideo.dailymotion.com.  The educational implications are substantial,
>> in my opinion.
> 
> You mean to add an option to a popup menu that would open the video
> in, say, Jukebox?

Maybe.  There are a lot of options.  As a first pass, I would say, yes,
there should be an option in a popup menu.  It should be labeled "View
Full-screen", and it does just that.  It could be implemented to use any
standard video player plugin, like the Totem plugin we're using currently.

I wouldn't say Jukebox specifically, because I'm not talking about opening
it in a separate window.  (Besides, <video> is very flexible, capable of
things like streaming live video, which is not going to transfer easily to
Jukebox.)

This is just a first step, though.  Things get much more interesting if
you consider, for example, replacing every video with a big "Click here to
play video" button that opens full-screen, or allowing the user to resize
the video to less than full screen.

--Ben

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