A few months ago I purchased a “Google Phone”: a HTC Magic running the Linux-based Android operating system. I am incredibly pleased with this device.

Today I wanted to convert some video that I recorded on a Nikon Coolpix camera into a format that would play nicely on my Android phone. The resolution needed to be scaled down for the small screen, and I knew that h264 was the best video codec. After some searching online, and a bit of experimenting, I found that this worked wonderfully:

ffmpeg -i input.avi -aspect 3:2 -s 400x300 -vcodec libx264 -b 480k -r 30 -acodec libfaac -ac 1 -ab 32k -padtop 10 -padbottom 10 -padleft 40 -padright 40 -sameq -pass 1 output.mp4

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