Getting WebRTC working on WebKitGTK sounds awesome.
I am a little concerned with the use of an abstraction layer as a
backend. I am afraid this could lead to weird abstractions.
Typically in WebKit we try to have baseline code in C++ that handles
everything that can be shared between ports, and platform abstractions
for everything port and/or platform specific.
Using OpenWebRTC, there would be no abstractions and WebCore would just
be a bridge between JavaScript and OpenWebRTC. Is that correct?
Could you explain a bit why you chose to use an abstraction layer at the
WebRTC level instead of interfacing directly with GStreamer at the
platform abstraction level?
Benjamin
On 1/28/15 2:28 AM, Adam Bergkvist wrote:
Hi
Back in 2011-2012 there was some work done to implement WebRTC in WebKit
by Google and Ericsson [1]. At the time, it was only the chromium port
that had a WebRTC backend implemented (webrtc.org) and a fully testable
implementation. As of late 2014, there is an alternative WebRTC
implementation out there; OpenWebRTC [2] is an open source WebRTC
framework based on GStreamer.
This is an announcement that we are a group of people/companies that
intend to continue the work on WebRTC in WebKit.
What we would like to do is to:
* Get the WebCore interfaces up to date. Quite a lot has changed in the
WebRTC API since the code landed in WebCore. For example, the
MediaStreamTrack has taken over most of the responsibilities previously
owned by MediaStream.
* Use OpenWebRTC as a WebRTC backend on the GTK+ port. Our approach
would be to use a stable platform interface on a lower level than the
W3C API (MediaStream API and RTCPeerConnecion) and implement the API
related details in WebCore. This would allow us to let API related
objects only exist in WebCore and not having to mirror them across layers.
* Evaluate the feasibility of multiple back-end support (e.g. webrtc.org
& OpenWebRTC).
This effort will involve quite a few people, including Adam Bergkvist
(Ericsson), Alex Gouaillard (Temasys), Philippe Normand (Igalia) and
Sebastian Dröge (Centricular).
Feedback and/or help is always appreciated.
BR
Adam, Alex, Philippe and Sebastian
[1] https://lists.webkit.org/pipermail/webkit-dev/2011-November/018445.html
[2] https://github.com/EricssonResearch/openwebrtc
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