ADD14: ChromeCast and the future of Android TV
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This document presents a comprehensive overview of Google's television initiatives, focusing on Google TV and Chromecast. It details the history, pros and cons of Google TV, and discusses the functionality, hardware, and protocols of Chromecast, including the development of applications using its technology. Additionally, it introduces 'Cheapcast', an app that emulates Chromecast functionality on Android devices, along with future speculations on Android TV.
ADD14: ChromeCast and the future of Android TV
- 1. ChromeCast and the future of Android TV Sebastian Mauer GDG Aachen
- 3. Who am I? Sebastian Mauer GDG Aachen Co-Lead CS Student Software Engineer I don’t work for Google…yet
- 5. Part I: Google TV (aka „The History“)
- 6. GoogleTV • Google’s first attempt to „own“ the TV • Introduced at Google I/O 2010 • First Device, x86-based Logitech Revue • US only at launch
- 7. By the summer of 2012, the majority of the televisions you see in stores will have Google TV embedded. - Eric Schmidt at LeWeb 2011
- 9. 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
- 10. GoogleTV: Pros • Part of the Android-family. • Deploying apps is easy™ (via Play Store) • Re-use most of your existing Android code
- 11. 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)
- 12. Help me Android. You're my only hope
- 13. Part II: ChromeCast aka Google Cast Devices
- 15. ChromeCast: Hardware • Model Number: H2G2-42 • It’s not based on ChromeOS • It’s based on Android and Chromium • It’s not going to kill GoogleTV http://www.ifixit.com/Teardown/Chromecast+Teardown/16069
- 16. 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
- 17. ChromeCast: How does it work?
- 18. 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 • It’s not officially released outside the U.S. Things have been broken. But the SDK is stable now.
- 19. WebTech UDP ChromeCast: Protocol Stack • 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)
- 20. TCP WebTech UDP ChromeCast: New Protocol • mDNS (Multicast Domain Name System, aka Bonjour) • Protobuf over TLS Sockets • RAMP (Remote Application Media Protocol) • HTML5 & JS (You know that this is) • WebSockets (Bi-directional communication Browser<>WebApp) • WebRTC (Web Real Time Communication, ex. Screen Mirroring)
- 21. ChromeCast: How it works! 1. Advertises ChromeCast using mDNS (UDP Broadcast) ! 2. Discovers Endpoints using mDNS ! ! 3. Requests App and opens TLS Socket connection ! ! ! 4. CC fetches HTML5 based 1st Screen App (opens WebSocket)
- 22. ChromeCast: How it works! II! ! ! ! 5. Sends request to play media ! ! ! ! ! 6. HTML5 app receives media request (WebSocket) starts fetching content. ! ! ! ! ! ! 7. Media is downloaded/streamed by ChromeCast device
- 23. ChromeCast: Sender App • Cast SDK available for • You need to pay $5 to create an account on the Google Cast Developer Console
- 24. ChromeCast is not just for „streaming“ video content.
- 25. It’s a remote controllable Chrome Browser running on your TV.
- 28. Part III: ChromeCast without ChromeCast* * includes shameless plug
- 29. 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
- 30. CheapCast: Components WebView SSDP Service DIAL REST WS ChromeCast API Ext 1st Screen Output Receiver App Sender App
- 31. 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.
- 32. CheapCast: OpenSource https://github.com/mauimauer/cheapcast Licensed under the Apache 2.0 License Made possibleby Chromium Totally useless right now! But it mightcome back…
- 33. Part IV: Android TV (aka „What might be…“)
- 37. Just Rumours?Yes! But Google Cast ist not going away soon.
- 39. Q&A Follow me on G+
- 40. First one to scan this QRCode to find out the Codeword wins.