[webkit-dev] Trying to turn WebRTC's code on - MEDIA_STREAM flags

santhosh dhamodharan ssanthshtech at gmail.com
Sun Aug 24 23:51:35 PDT 2014

hi all,

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On Mon, Aug 25, 2014 at 11:58 AM, Benjamin Poulain <benjamin at webkit.org> wrote:
> On 8/24/14, 8:37 AM, Alexandre GOUAILLARD wrote:
> For clarification of the  goals and the scope, we intend to provide patches
> in webkit for webRTC. We would love to see webRTC support in iOS and we
> understand that having it in apple provided webkit (UIWebView) to comply to
> apple store rule 2.17. We understand we do not have complete control over
> the entire process, especially the eventual packaging and deployment, and
> the timelines, and that apple does not comment about this, but we thought
> implementing it in webkit was a necessary prerequisite in any case. For the
> rest we will have faith :-)
> During a phone conversation with eric C, we've ben told that we should start
> by making it happen in the macOS X port as we would snot be able to build
> for iOS and because the differences were not so big between the iOS and the
> macOS ports.
> Yep, that sounds like a good plan.
> JO has been working on the Media Capture and Stream and webRTC APIs for
> almost a year, and developed an IE and Safari plugin that implements all of
> the APIs. He reads/speaks/write web IDL fluently now, and now all the
> subtleties of the constraints, streams, tracks, ect. I sit at the standard
> committees and help with everything that is not clear from the specs.
> Unfortunately, that does not help understand webkit intricacies and that's
> where we are today.
> We reached out to Eric C, Thiago from nokia (NIX port), kirun from samsung,
> and started from there. I also speak regularly with adam Be. from ericson at
> the w3c meetings. I will jump in the project and add an additional senior
> staff, so we should be 2~3 FTE starting tuesday. Looking at philippe N works
> in WK2, it looks like you would be a reviewer of any patch we would submit,
> correct? (bug)
> I help from time to time but the right reviewers for work on multimedia are
> Brent Fulgham, Eric Carlson, Jer Noble and Philippe Normand.
> With our target (iOS/MacOS X) should we target WK1 or WK2? We plan to
> finalize the webcore part first, but we need to target an app, and a port
> for testing. NIX does not seem to be an option anymore.
> Usually, what goes into the WebKit layer is small and WK1 and WK2 are done
> simultaneously. For the initial prototype, you can focus on WebKit2 and port
> the code to WebKit1 once you have something stable.
> On OS X, WebKit2 is used by WKWebView and Safari, WebKit1 is used by the
> WebView API. On iOS, WebKit2 is used by WKWebView and Safari, WebKit1 is
> used by UIWebView.
> For initial prototyping, you can generally focus on WebKit2 first.
> There also seem to have been a discussion about the design (platform vs
> client) triggered by adam Be.. Anybody knows if there was a conclusion?
> (bug) We would prefer putting a maximum of common code in webcore, as
> proposed by adam.
> The architecture depends on the backend but also security considerations
> (especially with the access to hardware). You should ask Eric Carlson for
> input.
> We are also contributing some tests to w3c (based on testharness.js, testing
> the bindings and IDL only) that we plan to use for testing. Dominique has
> recently committed the tests for steams and tracks using the latest spec
> (here). Is there anything we should prepare in the layout tests for this as
> well? It looks like the media stream tests have been excluded from the tests
> for the time being.
> That is a good start. You can import W3C tests into WebKit.
> To qualify for a release, you would need to have a lot more testing than
> that. Given the scope of WebRTC, this will require improving the testing
> infrastructure of WebKit.
> We are trying to have a working implementation by oct 15th, so we could send
> it for test around and get feedback in time for discussion during the W3C
> technical plenary and advisory committee meeting on oct. 27th, in San Jose,
> CA.
> Honestly this seems a little short, WebRTC is big. Most non-trivial features
> take several months to get in good shape with proper testing and performance
> coverage.
> It is probably possible to get a working prototype in 2 months, but this
> will require great review cycles.
> Benjamin
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