Trying to do some downloads from youtube, I installed an add-on called "downloadhelper". I've used it in previous versions of linux and it 'just worked'. But this one doesn't. It was set on using ffmpeg to do the conversion of a video, but I discovered that ffmpeg is not in the system. So I went to install it, and discovered that it doesn't occur in the repository either. There are a lot of items that use 'ffmpeg' as a part of their name, but nothing that is just named ffmpeg. One of those

I suppose that it might be in the system, but under a different name, and I just don't know what to call it. This is an hp Pavilion computer a6110, using Firefox.

You can install ffmpeg from sources.

http://linuxg.net/how-to-install-ffm...s-from-source/

That particular links suggests using ysam for an assembler. You could also use gcc, which is more traditional Linux approach; gcc is in the repos.

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