I have installed ffmpeg to convert a video. I am trying to convert a .mp4 to a .avi video with the codec wmv1. How to do this?

I am using the command avconv in a Kubuntu terminal. Last attempt I did this:

avconv new_video.avi wmv1 old_video.mp4

And I always got this message:

Unable to find a suitable output format for 'wmv1'

Anyone can help me?

1 Answer 1


Important note: ffmpeg is not avconv – there's a difference between those. Many simple commands will just work fine in either tool, but you should always download a recent ffmpeg version instead of doing an apt-get install ffmpeg, because you won't get the "real" ffmpeg.

Your command is quite off. Have you had a look at any examples or the documentation? We also have a blog post on ffmpeg.

You first have to specify an input file with -i <file>, then the encoding parameters, and then the output file:

ffmpeg -i old_video.mp4 -c:v wmv1 new_video.avi

That's the most basic command to achieve what you want. The audio will be converted to MP3 here using the libmp3lame encoder. Choose a bitrate by setting -b:v 500k or whatever you need. Same for audio with -b:a 128k or similar.

  • You were right, I forgot the -i and that link was what I was looking for. Thank you a lot!
    – forvas
    Feb 24, 2014 at 17:28

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge that you have read and understand our privacy policy and code of conduct.

Not the answer you're looking for? Browse other questions tagged or ask your own question.