kurento-utils.js

[jonathan...@productionstmv.com]

Hi, a couple of questions:

- is webrtc-adapter.js still required when using kurento-utils.js?  Is it taking the place of the adapter?

- it looks like it's more a convenience wrapper for simple usages.  Is that correct?  Is there a recommended library that is more comprehensive?  For example, besides using Apple as a source - which I understand is ongoing - it would be nice to preview video before connecting and switching between cameras without destroying the connection. which seems to be hidden behind the library's facade.

- speaking of which, any news on iOS?

Thanks! -j

[Micael Gallego]

Please find responses inline

On Wed, Jun 6, 2018 at 11:59 PM <jonathan...@productionstmv.com> wrote:

Hi, a couple of questions:

- is webrtc-adapter.js still required when using kurento-utils.js?  Is it taking the place of the adapter?

Yes. Kurento-utils needs adapter.js. 

- it looks like it's more a convenience wrapper for simple usages.  Is that correct? 

Yes. It is.

 

Is there a recommended library that is more comprehensive?  For example, besides using Apple as a source - which I understand is ongoing - it would be nice to preview video before connecting and switching between cameras without destroying the connection. which seems to be hidden behind the library's facade.

You can use WebRTC browser API directly. 

- speaking of which, any news on iOS?

We are still working on that. 

Thanks! -j

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[jonathan...@productionstmv.com]

Thank you for the prompt answer and for kurento!  

On Wednesday, June 6, 2018 at 6:02:37 PM UTC-4, OpenVidu wrote:

Please find responses inline

On Wed, Jun 6, 2018 at 11:59 PM <jonathan...@productionstmv.com> wrote:

Hi, a couple of questions:

- is webrtc-adapter.js still required when using kurento-utils.js?  Is it taking the place of the adapter?

Yes. Kurento-utils needs adapter.js. 

Is there any reason to not always use the latest adapter?  (besides occasional bugs)

[Micael Gallego]

You can use the latest adapter.js version. Kurento-utils is not bundled with it to allow you to update it when you want.

In OpenVidu we have used the opposite approach. We embed adapter.js inside OpenVidu-browser lib to make easier to use OpenVidu. As always, there are trade offs... 

Best regards

Micael Gallego

Kurento / OpenVidu Project Lead

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[Paulo R. Lanzarin]

it would be nice to preview video before connecting and switching between cameras without destroying the connection. which seems to be hidden behind the library's facade.

Be aware that kurento-utils exposes the peerConnection, so you are perfectly capable of manipulating the
WebRTC peerConnection and getting the stream tracks active in it. Getting a preview is as simple as fetching
the peerConnection from the WebRtcPeer object and attaching it to a video tag.

Switching cameras is a bit more complicated, though. You can simply use the native getUserMedia to fetch
a new webcam and replace the track in the peerConnection (pc.removeStream(stream), pc.addLocalStream(newStream),
but that'll require a renegotiation of the sender peer. And that implies recreating the WebRtcEndpoint in KMS because it doesn't support renegotiation. A utilitary
method for this could be added in simple manner to kurento-utils, but you'll have to handle the peer renegotiation properly
both in the browser and in KMS.

On Wed, Jun 6, 2018 at 7:14 PM, Micael Gallego <open...@gmail.com> wrote:

You can use the latest adapter.js version. Kurento-utils is not bundled with it to allow you to update it when you want.

In OpenVidu we have used the opposite approach. We embed adapter.js inside OpenVidu-browser lib to make easier to use OpenVidu. As always, there are trade offs... 

Best regards

Micael Gallego

Kurento / OpenVidu Project Lead

On Thu, Jun 7, 2018 at 12:07 AM <jonathan.longman@productionstmv.com> wrote:

Thank you for the prompt answer and for kurento!  

On Wednesday, June 6, 2018 at 6:02:37 PM UTC-4, OpenVidu wrote:

Please find responses inline

On Wed, Jun 6, 2018 at 11:59 PM <jonathan...@productionstmv.com> wrote:

Hi, a couple of questions:

- is webrtc-adapter.js still required when using kurento-utils.js?  Is it taking the place of the adapter?

Yes. Kurento-utils needs adapter.js. 

Is there any reason to not always use the latest adapter?  (besides occasional bugs)

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