Chromecast, CheapCast and TV - DevFest Brussels 2013
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Is GoogleTV doomed? Will Chrome is in Chromecast? Learn how Google's Chromecast works on the inside.
![ChromeCast: Receiver App
<html>
<script src=/slideshow/chromecast-cheapcast-and-tv-devfest-bru/29102491/"https:/www.gstatic.com/cast/js/receiver/1.0/cast_receiver.js">
</script>
<script type="text/javascript">
!
!
!
!
var receiver = new cast.receiver.Receiver(
'App ID', [cast.receiver.RemoteMedia.NAMESPACE],
"",
5);
var remoteMedia = new cast.receiver.RemoteMedia();
remoteMedia.addChannelFactory(
receiver.createChannelFactory(cast.receiver.RemoteMedia.NAMESPACE));
receiver.start();
window.addEventListener('load', function() {
var elem = document.getElementById('vid');
remoteMedia.setMediaElement(elem);
});
</script>
<body>
<video id="vid" style="position:absolute;top:0;left:0;height:100%;width:100%" />
</body>
</html>](https://image.slidesharecdn.com/chromecastcheapcastandtv-devfestbru-131211040334-phpapp01/85/Chromecast-CheapCast-and-TV-DevFest-Brussels-2013-24-320.jpg)
Chromecast, CheapCast and TV - DevFest Brussels 2013
- 1. Chromecast, Cheapcast and TV Sebastian Mauer GDG Aachen DevFest Brussels November 16th, 2013
- 3. Who am I? Sebastian Mauer GDG Aachen Co-Lead Software Engineer CS Student I dont work for Googleyet
- 4. Part I: Google TV
- 5. GoogleTV ? Googles first attempt to ?own the TV ? Introduced at Google I/O 2010 ? First Device, x86-based? Logitech Revue ? US only at launch
- 6. By the summer of 2012, the majority of the televisions you see in stores will have Google TV embedded. - Eric Schmidt at LeWeb 2011
- 8. Three Generations 1. Generation, late 2010? based on Android 3.2 2. Generation, Summer 2012 based on Android 3.2 3. Generation, 2013? probably on Android 4.2.2
- 9. GoogleTV: Pros ? Part of the Android-family. ? Deploying apps is easy? (via Play Store) ? Re-use most of your existing Android code
- 10. GoogleTV: Cons ? Does not evolve as fast as mainline Android ? Not many devices sold (500,000 - 1,000,000) ? Late start in the European Union (2012)
- 11. Help me Android. You're my only hope
- 12. Part II: ChromeCast aka Google Cast Devices
- 14. ? Model Number: H2G2-42 ? Its not based on ChromeOS ? Its based on Android? and Chromium ? Its not going to kill GoogleTV http://www.i?xit.com/Teardown/Chromecast+Teardown/16069 ChromeCast: Hardware
- 15. ChromeCast: Pros ? Very cheap hardware (35$) ? Very easy to use (My Grandma can do it?) ? Web Developers can easily write ?Receiver-Apps ? Simple Protocol Stack
- 16. ChromeCast: Cons ? Google Cast SDK is still a Developer Preview? (read: things will break, things will change) ? You have to manually whitelist? all your apps with Google ? Its not officially released outside the U.S.
- 17. ChromeCast: Protocol Stack UDP ? SSDP (Simple Service Discovery Protocol) ? DIAL (DIscovery And Launch) ? RAMP (Remote Application Media Protocol) ? HTML5 & JS (You know that this is) ? WebSockets (Bi-directional communication Browser<>WebApp) ? WebRTC (Web Real Time Communication) WebTech
- 18. ChromeCast: How does it work?
- 19. ChromeCast: How it works! 1. Advertises ChromeCast? using SSDP (UDP Broadcast) 3. ! ! Requests App and opens? WebSocket connection 4. 2. ! Discovers Endpoints using DIAL ! ! ! CC fetches HTML5 based 1st Screen App (opens WebSocket)
- 20. ChromeCast: How it works! II 5. ! ! ! ! Sends request to play media 7. ! ! ! ! ! 6. ! Media is downloaded/streamed? by ChromeCast device ! ! ! ! ! HTML5 app receives? media request (WebSocket)? starts fetching content.
- 21. ChromeCast: DIAL ? Protocol published by Netflix ? Uses SSDP for Service Announcement ? DIAL REST WebService for exchanging? Device capabilities and controlling
- 23. ChromeCast: Sender App Cast SDK available for? ? ? ? ? ? Needs Whitelisting with Google
- 24. ChromeCast: Receiver App <html> <script src=/slideshow/chromecast-cheapcast-and-tv-devfest-bru/29102491/"https:/www.gstatic.com/cast/js/receiver/1.0/cast_receiver.js"> </script> <script type="text/javascript"> ! ! ! ! var receiver = new cast.receiver.Receiver( 'App ID', [cast.receiver.RemoteMedia.NAMESPACE], "", 5); var remoteMedia = new cast.receiver.RemoteMedia(); remoteMedia.addChannelFactory( receiver.createChannelFactory(cast.receiver.RemoteMedia.NAMESPACE)); receiver.start(); window.addEventListener('load', function() { var elem = document.getElementById('vid'); remoteMedia.setMediaElement(elem); }); </script> <body> <video id="vid" style="position:absolute;top:0;left:0;height:100%;width:100%" /> </body> </html>
- 25. ChromeCast is not just for ?streaming content.
- 26. Its a remote controllable Chrome Browser running on your TV.
- 27. Part III: CheapCast* * includes shameless plug
- 28. CheapCast all the Droids ? Is an app that emulates a ChromeCast (or Google Cast) device on almost any Android Device ? Implements DIAL, RAMP/WS Proxy-ing ? Does not care if your id is whitelisted or not. ? Written by me
- 29. CheapCast: Components 1st Screen Output Receiver App SSDP Service WebView DIAL REST WS ChromeCast API Ext Sender App
- 30. CheapCast: Use Cases ? Start developing ChromeCast apps without owning? an actual ChromeCast Device ? Turn one of your old Android-devices into a? ChromeCast Dongle (connect via MHL<->HDMI) ? Cast content from your Android Smartphone? to your Android Tablet just for the hell of it.
- 31. CheapCast: Use Cases Google Music YouTube
- 32. CheapCast
- 33. CheapCast: OpenSource https://github.com/mauimauer/cheapcast Licensed under the Apache 2.0 License MadeFp ature: g eossible obyin c mC Up hng! iu ti rom m Cas Tab
- 34. Demo
- 35. CheapCast: Get it now
- 36. Q&A