Re: What does a track contain?

On 24 February 2016 at 08:13, Peter Thatcher <pthatcher@google.com> wrote:
> What do you mean "throughout the media pipeline"?  Do you expect a track
> sent through a PeerConnection to have the alpha channel intact when it comes
> out the remote side?

Well, we know that RTP video is generally incapable of handling alpha
channels, so no.  Unless and until we find a codec that supports an
alpha channel (APNG perhaps).

But the simple example of <canvas> piped to <video> presents something
of a challenge.