Video Conversion using libav with libopus

Question

i need to convert my video files with VP8 / Opus in Matroska(mkv) container using avconv in terminal Can anyone give example usage of it?

Answer 1

Actually you can't because the Matroska container doesn't support the Opus audio codec yet.

source: Codec Specs | Matroska

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Apart from that the most simple way to transcode a video with VP8 is to use transmageddon

Opus support for transmageddon was added in November 2012 (just after 0.25 was released), so you'll have to wait for 0.26. (source: Gnome Transmageddon Repository)

Alternatively you can compile ffmpeg from source (otherwise you won't have VP8 or Opus) following the instructions on the ffmeg site.