[FFmpeg-devel] Allow VP9 and Opus in webm format

Gerion Entrup gerion.entrup at t-online.de
Sun Jun 2 21:15:33 CEST 2013

Am Sonntag, 2. Juni 2013, 15:15:19 schrieb Hendrik Leppkes:
> On Sun, Jun 2, 2013 at 1:00 PM, Tudor SUCIU <tudor.suciu at gmail.com> wrote:
> > As there are already examples of webm files with VP9 and Opus, i think
> > ffmpeg can allow this codecs in webm format.
> > I successfully used the patch to -vcodec copy a vp9 and encode an opus
> > audio.
> > For a vp9 encoded file, chromebook was not able to decode it, but vpxdec
> > worked just fine.
> Personally i think that until the spec for storing Opus in MKV/WebM is
> finalized, it should not be encouraged to be used yet.

For Opus the spec is discussed intensely on the Matroska-devel mailing list
ended with a pull request by Steve Lhomme:

The draft was updated a few weeks ago:

I think, the spec will be finalized soon.

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