CrunchBang Linux

aezz

New Member

Registered: 2012-09-27

Posts: 4

Video Downconversion?

Has anybody used any tools to downconvert video? I need 720 to 480, my puny laptop can't quite handle 720 and there are a few movies I'd like to watch.

The files are .avi, if that means anything.

pvsage

Internal Affairs

From: North Carolina

Registered: 2009-10-18

Posts: 9,004

Re: Video Downconversion?

I have a little script at home (I'm at work now) that will convert videos for my rockbox'd iPod; I'll try to remember to post it for you.  A quick Google search found this:
http://www.freemyipod.org/wiki/MPEG_movies
Just change the reolution in the command to 720x480.

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aezz

New Member

Registered: 2012-09-27

Posts: 4

Re: Video Downconversion?

Ok thanks, I will give that a whirl.

pvsage

Internal Affairs

From: North Carolina

Registered: 2009-10-18

Posts: 9,004

Re: Video Downconversion?

OK, here's a modified version of my iPod Rockbox script:

#!/bin/bash
for i in *.avi
do
  avconv -i "$i" -vf "scale=720:-1" -vcodec mpeg2video -b:v 500k -acodec libmp3lame -ab 192k -y "converted/${i%.avi}.mpg"
done

Note that the original script was specifically written (by somebody else) to convert videos of any format to mpeg-2 with good quality for the iPod's smaller screen and preserve the original aspect ratio.  (The '-vf "scale=720:-1"' should do the same thing at a final resolution that fits your screen (at fullscreen).)

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