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I'm using RecordMyDesktop to generate videos for some tutorials and I've tried using quite a lot of video editing programs but haven't been able to get these videos to fit perfectly into the YouTube dimensions (without the black margins).

How can I do this without losing video quality?

Some more info that might help

Running ffmpeg -i on the files returns the following:

Stream #0.1: Video: theora, yuv420p, 944x512 [PAR 1:1 DAR 59:32], 30 fps, 30 tbr, 30 tbn, 30 tbc - although I have various files, each with different dimensions.

I've tried the following editors: Kdenlive, PiTiVi, Avidemux & Cinelerra (I prefer the first 2).

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1 Answer 1

up vote 0 down vote accepted

It's easier and better to resize the window you're recording to 1280x720 (or any 16:9 proportion).

xdotool getactivewindow windowsize 1280 720 will do it for you.


If you really want to do the cropping, it's quite easy in Kdenlive:

  • Right-click on a clip in the timeline, go to Add EffectCrop and transformCrop.
  • Check Automatic center-crop, or try different settings until you get the desired result.
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crop didn't work for me for some reason, but I've finally found out how to record exact dimensions with RecordMyDesktop, you need to use the CLI with something like: recordmydesktop --width 1280 --height 720 --full-shots --fps 15 --channels 1 --device hw:1,0 --delay 4 --no-sound -y 100 –  mind.blank Aug 26 '12 at 14:57

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