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29 October 2010, 15:26

Mozilla Labs launches browser add-on for A / V recording

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Rainbow Logo The Mozilla Labs developers have released an early prototype of a new add-on for the Firefox browser that enables web developers to access a user's local video and audio recording devices with only a few lines of JavaScript. According to Mozilla Labs developer Anant Narayanan, the experiment, called "Rainbow", generates files encoded in open formats that are then are accessible in DOM using HTML5 File APIs, which can also be used to upload them to a server.

The add-on encodes video files in Theora and audio files in Vorbis and places them in an Ogg container. Future versions of the add-on will reportedly include live video streaming support, a "robust permissions mechanism" and support for WebM / VP8 video encoding as an alternative to Ogg / Theora.

Zoom Rainbow on Mac OS X.
Source: Mozilla
The developers consider Rainbow to be at a pre-alpha stage of development and note that it currently only works with the nightly builds of Firefox for Mac OS X. Users testing the release are encouraged to provide feedback and report any bugs that they encounter. Support for Windows and Linux systems is said to be coming "in the near future". There are currently no plans to support earlier versions of Firefox.

Further information about Rainbow can be found in the announcement blog post and in the README file. Rainbow 0.1 is available to download from the Add-ons for Firefox page and an example is provided for developers. Source code for Rainbow is hosted on GitHub and is licensed under the Mozilla Public License.


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