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Monday, December 03, 2007

Saving Power with Linux

An interesting site with numerous tips and tricks on power efficient computing using Linux:


It is also home to the rather useful "PowerTOP" tool. If the testimonials are anything to go by, everyone running a recent release of Linux should give this a try.

Saturday, December 01, 2007

Embedded multimedia in LateX/Prosper

The movie15 package by Alexander Grahn is useful for this purpose. The movies embedded, however, cannot be viewed with any PDF reader on Linux.

Extracting Audio/Video

It's really easy to extract either audio or video from a multimedia file using 'ffmpeg'. To extract audio only:

$ ffmpeg -i inputfile -vn -acodec copy outputfile

And for video only, replace '-vn' with '-an' and '-acodec' with '-vcodec'.

ffmpeg is also commonly used as a transcoding tool.