Audio Video (ogg) Generation using Javascript

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+2 Q:

Audio Video (ogg) Generation using Javascript

Hi, is it possible to generate/send video/audio using javascript ??

for example, see jspdf - http://jspdf.googlecode.com/svn/trunk/examples/basic.htm generate client side generated pdf file using base64 encoded datauri and embed the datauri !

Can similar approach be applied for generation of Ogg files ?

This can be useful for text to speech in browser.

+1 A:

I believe that wave/PCM is supported as an audio format by all browsers that support the media elements, so it should be relatively trivial to generate a data url for a pcm file.

Video is more difficult -- there isn't a standard codec for video, and possibly more importantly i doubt any js engine is fast enough yet to generate encoded video sufficiently quickly (given that native implementations have only relatively recently gotten to > realtime performance)

olliej 2009-06-30 17:34:56

This depends on the dimensions, of course. Maybe it would be possible to use canvas to generate **small** videos (resolution-wise). However, we have that sluggish thing some call a *"web browser"*. Macro$hit Idiot Exploiter is not going away soon.

Camilo Martin 2009-12-18 05:01:16

+1 A:

You can embed video and audio data in data URIs

themaninblue has made a javascript drum machine

have a look at the source code as an example

Charles Ma 2009-11-12 10:24:35

+1 A:

Slightly offtopic, but if what you need is text to speech, you could split the text into chunks of up to 100 characters and use Google Translate TTS.

anon 2009-12-15 09:32:11

ansaurus

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Audio Video (ogg) Generation using Javascript

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