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From the main picture on this page: https://developers.google.com/cast/

And the description of Sender app on this page: https://developers.google.com/cast/docs/design_checklist#cast-basics

Sender app / device (e.g. YouTube app on mobile) The sender initiates connecting to and / or casting (sending a content link) to a Google Cast Ready receiver (a.k.a Cast receiver) on the same Wi-Fi network.

Question: Can I cast media that is stored on my local device (a mobile or PC)?

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You can if you write your own sender and provide a tiny web server in your sender to serve the content to the html receiver.

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  • Upon further testing, I discovered that if I run my app (iOS) on a Xcode simulator then it works fine to cast content locally. But if the app was executed from a real iDevice, then it does not cast local content. Keep in mind, in iOS framework has two separate code: i386 and ARM. My suspicion is that the framework for ARM blocks casting content from local device. Am I wrong?
    – EmilyJ
    Commented Mar 18, 2014 at 13:14
  • One more piece of info: Running the app on one iDevice but the content comes from another iDevice, then it also works fine.
    – EmilyJ
    Commented Mar 18, 2014 at 13:37
  • You can just point your browser at the URL of the media served from your iOS device and see if it plays or not; if it does, then you need to check on how you are passing the url to your receiver (use chrome debugger on port 9222 after whitelisting your chromecast device); if it doesn't play, then your embedded web server is not working properly and you need to address that.
    – Ali Naddaf
    Commented Mar 18, 2014 at 14:30
  • oops! user error, I forgot to change the IP address. Thanks for your help.
    – EmilyJ
    Commented Mar 18, 2014 at 17:22

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