leapcast

Simple ChromeCast emulation app.

Working:

• Discovery (DIAL protocol http://www.dial-multiscreen.org/)
• Youtube app

Apps:

• YouTube uses REST + CloudProxy or REST + RAMP
• Google music uses RAMP

On real device enabled apps are fetched from https://clients3.google.com/cast/chromecast/device/config

TODO:

• Remote control via RAMP and Websockets

What is RAMP(remote media access proxy?)

• 1st screnn device(chromecast) acts like proxy betweeen two browser/app sessions
• 2nd screen device creates app, then waits for screenId
• 1st screen device after app starts issues REGISTER RAMP packet
• 1st > 2nd Issues CHANNELREQUEST with requestId which is the same as that in screenId in DIAL xml
• 2nd screen device connects via websockets using screenId and isses LOAD, INFO, PLAY, STOP, VOLUME
• 1st screen responds accordingly

How to run

usage: app.py [-h] [--name NAME] [--user_agent USER_AGENT] [--chrome CHROME]
               [--fullscreen]
               iface

positional arguments:
  iface Interface you want to bind to (for example 192.168.1.22)

optional arguments:
  -h, --help              show this help message and exit
  --name NAME             Friendly name for this device
  --user_agent USER_AGENT Custom user agent
  --chrome CHROME         Path to Google Chrome executable
  --fullscreen            Start in full-screen mode

Install Google Chrome, then run

python2 app.py ip_of_this_device --name "My super name"