Converting video to mp4 (H.264) and WEBM with avconv (ffmpeg)

Avconv is a fork of ffmpeg used by debian and ubuntu. For now they use the same commandline syntax. Avconv can convert almost every video format there is. I am using it to convert my video’s to mp4 and webm format. These formats are compatible with most HTML5 browsers. I use the video.js¬†library to select which format to use and to provide a flash fallback (mostly IE).
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