This are my notes in the fields of computer science and technology. Everything is written with ABSOLUTE NO WARRANTY of fitness for any purpose. Of course, feel free to comment anything.

Saturday, September 12, 2009

HandBrake

This software comes in hand, when you want to upload videos to a mobile phone or media player. It allows to transcode easily to mp4 format with a good control of options, encoder to use, resizing...

Here is my settings file (user_presets.xml), which I use to convert files to display them in my phone:
<?xml version="1.0"?>
<ArrayOfPreset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
<Preset>
<Level>0</Level>
<Name>Mobile phone</Name>
<Query> -f mp4 -w 400 -e ffmpeg -q 0.5 -a 1 -E faac -B 160 -R 0 -6 stereo -D 1 -m -v </Query>
</Preset>
</ArrayOfPreset>
My settings are: ffmpeg encoding, mp4 container format, aac stereo sound, 50% constant quality, resize to 400px width. Note that to be able to create a preset under Vista you need to start the application with administrative rights.

Platform: cross-platform
Version: 0.9.3 (Nov 23, 2008)
License: open source freeware

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Hamburg, Hamburg, Germany
Former molecular biologist and web developer (Rails) and currently research scientist in bioinformatics.