I take photos and videos using Cheese on Ubuntu 12.04. They are in WebM formats.

How to convert them in other more conventional formats for making them compatible with other OS and devices (Windows, Mobiles etc)?

I am looking for an easy tool since I don't need to process my files further.

Thanks for the reply.


I recommend you to download the FF Multi Converter.


have a look at this page :

FF Multi Converter


I think you should do this with ffmpeg.

To install, type these lines in terminal:

sudo apt-get install ffmpeg

now you have ffmpeg installed, you can convert webm to mp4 by this command: ffmpeg -i your_input_filename.webm your_outfile_name.mp4

Lets say you have your sample.webm file in your downloads folder and you want to generate the output to the same folder. You run this command: ffmpeg -i ~/Downloads/sample.webm -qscale 0 ~/Downloads/sample.mp4

If you don't want to type this long command everytime in your terminal you can create a little bash function to do it for you.

in terminal type nano ~/.bashrc
scroll down to the bottom and insert:

webmTOmp4 () {
      ffmpeg -i "$1".webm -qscale 0 "$1".mp4
mp4TOmp3 () {
      ffmpeg -i "$1".mp4 "$1".mp3

Now you can do: mp4TOmp3 GENUINE\ -\ Thleilaxu-k8hrEbXURzg and the script will convert and save your new file with the same name to the same folder.

  • We can perform this converting action without to download the repository you are talking about (only the native ffmpeg library). However, I have to say that the conversion process is very, very, very slow. Maybe with your upgraded files it will work faster? ??? – Juan Oct 21 '16 at 21:21
  • @Juan what upgraded files are you talking about? The converting and downloading process both are very fast to me. – tsm Oct 23 '16 at 12:31
  • 1
    I'm talking about I use Ubuntu Studio 16.04 LTS and it has the ffmpeg library included on it. Also, I tried to download the jon-severinsson ppa but the system tells me that it doesn't exist. So... Also, in my system, the process is too slow and frame by frame. I think something is missing into your command line expression. Sorry, I'm not a programmer so I just copy and paste it. I don't have any clue about how to use and/or improve the use of the ffmpeg library. Sorry!!! – Juan Oct 23 '16 at 20:17
  • 8
    for latest version use ffmpeg -i your_input_filename.webm -qscale 0 your_outfile_name.mp4 because option -sameq has been removed in latest package – Vineet Jan 1 '18 at 13:01
  • @Vineet Please use -q:a or -q:v, -qscale is ambiguous – Aleksandar Pavić Sep 10 at 9:40

protected by Community Jan 16 '15 at 15:43

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