If you're looking to create some WebM videos to try out the new WebM support in Firefox 4 Beta 1, an easy tool to use is Miro Video Converter. Because WebM is such a new format, existing video editing software doesn't encode in WebM yet, so if you want to make a WebM video, you must create it in another format and then convert it to WebM using a tool like Miro Video Converter.
Miro Video Converter provides a very simple interface for ffmpeg, one of the leading open source video encoding tools. Miro Video Converter configures ffmpeg to output converted video to the same quality as the input, and it uses the excellent xiph.org libvorbis audio encoder, rather than ffmpeg's own broken Vorbis encoder (if you hear poor quality audio on YouTube WebM videos, it's probably because they're still using ffmpeg's vorbis encoder).
Miro Video Converter is freely available for download on Windows and Mac, and can convert to other formats besides WebM.
The few times I've tested it, the quality of the video was far worse than the input. I was converting MP4 videos.
Also should mention firefogg also support webm. It has a few presets and exposes lots of encoding controls.
Do you know if a Linux version is planned as well?
@kairo: I don't know if Miro has plans for a Linux port. You could probably contribute one! Firefogg should work on Linux.
thanks i was looking for this
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