What is the name of free software for windows or linux that will strip (not mute) all audio from MP4s easily?
If you can’t find anything easier to use, mencoder will if you feed it the ‘-nosound’ option.
(I think that program is primarily for Linux; it may or may not exist on Windows.)
Mencoder is available for various operating systems, including Microsoft Windows.
Another option, if you want a GUI, is HandBrake. It’s also available for various operating systems and is Free Software.
You’ll also want to make sure you do not transcode the video stream. I don’t know how easy that is with Handbrake, but with SUPER, you just check an option to keep the original stream.
Good point. Here’s an mencoder command line I know will work without transcoding:
mencoder -ovc copy -nosound input.mp4 -o output.mp4
This will work for every format mencoder knows about, which is more than a few.
It’s easy with HandBrake. When selecting how to “convert” the video stream, just choose “passthrough”.
Also, since Handbrake uses ffmpeg, you can just use it directly too:
ffmpeg -i input.mp4 -vcodec copy -an output.mp4