- From: Mark Foltz via GitHub <sysbot+gh@w3.org>
- Date: Wed, 11 Nov 2015 21:57:56 +0000
- To: public-secondscreen@w3.org
@wcarr Thanks for putting an initial draft together for feedback. I am quite concerned that the proposed scope of the carter omits the 1-UA case. This was specifically mentioned as important by me in the Sapporo F2F. In fact this could be an easier use case to achieve interoperability because there is a complete, self contained, open source implementation available (WebRTC). Imagine having a Raspberry Pi hooked up to a TV. Many HTML5 documents will perform poorly given its memory and CPU constraints and lack of GPU. But it is perfectly suitable for rendering a WebRTC stream at 720p or better. I think the wording of the example architecture could be improved. For example it would be better to list specific requirements for each of the components and list example technologies that could be listed to implement them. The charter should make clearer what specifications may be produced. In IETF style, the specifications will more likely follow the architectural layering and not the use case. For example there could be a specification for LAN discovery and control via TCP/IP, discovery and control via BLE/GATT, and a signaling protocol layered on top of either - that would be three specs. There is no way to send control messages via DIAL so I don't think it's worth mentioning as an example technology. It simply does not meet the baseline requirements for Presentation API. I don't want to overpromise on BLE. It can be used as a discovery mechanism but to implement control would likely require going through the Bluetooth SIG to register a new GATT service type. The security architecture is a bit of a mystery as well. I think it is a promising technology but I don't want to commit to it in our scope until due diligence has been done. -- GitHub Notif of comment by mfoltzgoogle See https://github.com/w3c/presentation-api/issues/220#issuecomment-155922403
Received on Wednesday, 11 November 2015 21:57:58 UTC