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Your task

A past GSoC student introduced the possibility of recording a match to a video file; it is highly configurable and you can select a lot of codecs for your video. However when using a particular combination of container, video codec and audio codec, results are horrible and audio in not audible.

Can you tell what's wrong when using WebM + libvpx + vobis?

Please see the discussion on our bug tracker, following this link (point #8).

Deliverable

A few pages in document format, describing the solution for the stated problem. Provide any code if available