[Webkit-unassigned] [Bug 189239] [EME][GStreamer] Add support for WebM encrypted caps "application/x-webm-enc"

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=189239

--- Comment #14 from Yacine Bandou <bandou.yacine at gmail.com> ---
(In reply to Xabier Rodríguez Calvar from comment #12)
> (In reply to Yacine Bandou from comment #9)
> > > What I mean is that if WebM supports cenc, we should provide a media type
> > > for application/x-cenc, original-media-type=(string)video/x-vp8 and vp9.
> > 
> > No, it is not the same thing.
> > 
> > For example: The PSSH box is mandatory in CENC protection scheme.
> > 
> > If we set the caps "application/x-cenc,
> > original-media-type=(string)video/x-vp9" for encrypted WebM/VP9. How we can
> > differentiate it from encrypted MP4/VP9 ?
> > For you information, MP4 supports the VP8 and VP9 codec
> > (http://mp4ra.org/#/codecs).
> 
> This is exactly my question, how can we differentiate them. I guess you're
> assuming that in the case of mp4 with VP8/9 what the demuxer would report
> would be application/x-cenc, original-media-type=(string)video/mpeg ?

Encrypted MP4/VP9 --> qtdemux with src caps "application/x-cenc, original-media-type=(string)video/VP9".
Encrypted WebM/VP9 --> Matroskademux with src caps "application/x-webm-enc, original-media-type=(string)video/VP9".

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