Streaming local media to Chromecast isn't that difficult of an endeavor these days. Sure, there isn't an official Google app that will slap those media files onto a TV for you, but between AllCast and Solid Explorer, there are options. There's also LocalCast, an app like AllCast whose singular purpose is to get media from your Android device to something with a bigger screen.

The app's latest update has added the ability to connect to network storage via Samba and cast files from them straight to Chromecast. The feature works, though there are some issues. Chromecast doesn't support all video or audio codecs, and while LocalCast technically isn't to blame for the formats it can't play, it doesn't help you figure this out.
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