On Thu, Dec 6, 2012 at 7:34 PM, Alan Etkin <[email protected]> wrote:
>
>> On Thursday, December 6, 2012 7:01:26 PM UTC-3, Mariano Reingart
>> wrote:This should be useful for the web2py-conference:
>> For PyCon Argentina 2012  videos I made a tentative site to do the
>> "post-production" in a colaborative way, mixing video, sllides
>> (images), subtitles and footnotes, adding more "interactivity".
>> Example at:
>
> If the subtitles get difficult to handle, I'd rely in a third party service
> like the one used for "Ideas we stole...". Anyway, I don't think that this
> cannot be solved, provided that the app has access to the stream time
> controls with js.
>

Subtitle handling is part of popcorn.js (with a plugin or with a .SRT
parser for external subtitles)

The most difficult part is sync'ing slides and subtitles with the
video/voice (that is, storing start/end time of each slide/subtitle).
Slides can be uploaded in a PDF, converted to jpg automatically (see
convert command).
Subtitles could be transcribed in the original language, then
translated to other languajes, then sync'ed to the voice.
The UI should be simple, just a button "next slide" and "show next
subtitle"/"hide subtitle" so anyone can compaginate the videos.

There are other alternatives (like universal subtitles) and popcorn
webmaker (a complete online video edition tools), but I would not
recommend them if we can do all of these in just one web2py
application.
I think this app could improve collaboration and participation this way
Tools to edit and subtitulate already exist, but there aren't many
pycon videos edited and translated...
Belive me, post-production can be costly, as much as the A/V recording
(without even including translation/subtitles).

Also, I forgot to mention that popcorn.js can use HTML5 video tag or
other players (like youtube or vimeo).
There is a "intelligent" player that detect the source and show the
correct player.

Best regards.

Mariano Reingart
http://www.sistemasagiles.com.ar
http://reingart.blogspot.com

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