I usually use Mobiola for this kind of application. Works well with all versions of Mix Emergency. However, Mobiola is in the process of making an update to be compatible with iOS 8 and Yosemite OS X right now. Mainly because I know first hand that medium and low quality settings are messed up now on the new OS's. You can only use high quality. And because the app uses wifi only, high quality setting is a bit choppy/stuttery with a little lag. I found another app that works well on all new OS's right now called 'Pocket Cam'. It's only downside is that the viewer app on your Mac has to be up front/on top of all windows in order for it not to stall. For example: Click on Pocket Cam viewer app and you see your video preview moving fine, click on Mix Emergency/Serato/(any other program or app that you click on next) and Pocket Cam will stall the feed after a few seconds or minutes if it's under the other program/app windows. It's a bit of a pet peeve, but I'm dealing with it until the Mobiola update. Fingers crossed for a very soon to drop update
