Those plugins both currently work and should work fine with ionic1 or ionic2+. As typescript is just a superset of javascript you just use them as you would any other javascript. The iOS plugin at least have quite detailed usage examples.
I would like to update these to a single plugin using the updated v3 cast SDK but I haven’t had the time just lately to spend on that. Hopefully can dedicate some time to it in the not to distant future.
Interested in this as well. These plugins still use the v2 cast SDK. It might be better to write a new plugin. @ghenry22 I can help out with this if you are interested?