Make sure your Mac and your smart or Apple TV are connected to the same WiFi network. At the menu on top of your Mac screen, find the AirPlay icon — a monitor with an arrow at the bottom. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Make sure that your devices meet the requirements for using AirPlay. To use Siri to play. It will ask you what you want to AirPlay to; tap on the name of your Mac. Your iPhone will ask for an AirPlay Code. An AirPlay code will show on your Mac. Type in the AirPlay code on your. Aug 28, 2012 AirPlay Mirroring is available with iPad 2 or later; iPhone 4S; iMac (Mid 2011 or newer), Mac mini (Mid 2011 or newer), MacBook Air (Mid 2011 or newer) and MacBook Pro (Early 2011 or newer) with Mountain Lion.
Here's a little more info:
So why can't older Macs support AirPlay Mirroring?
It comes down to hardware advantages of mid-2011 Macs, as they received Sandy Bridge i5/i7 chipsets that included separate dedicated hardware encoding for H.264. AppleInsiderexplains why older Macs can support AirPlay, but not AirPlay Mirroring:
These systems are the oldest machines capable of supporting AirPlay Mirroring because they are the first to deliver dedicated hardware encoding for H.264. Without a CPU capable of crunching this task using specialized hardware, earlier Macs simply can't transmit video fast enough without a lot of heat and screaming fans.
Airplay For My Mac Mid 2010 As A Monitor
It comes down to hardware advantages of mid-2011 Macs, as they received Sandy Bridge i5/i7 chipsets that included separate dedicated hardware encoding for H.264. AppleInsiderexplains why older Macs can support AirPlay, but not AirPlay Mirroring:
These systems are the oldest machines capable of supporting AirPlay Mirroring because they are the first to deliver dedicated hardware encoding for H.264. Without a CPU capable of crunching this task using specialized hardware, earlier Macs simply can't transmit video fast enough without a lot of heat and screaming fans.
Airplay For My Mac Mid 2010 As A Monitor
Older Macs can already send video from iTunes to Apple TV via AirPlay, but they stop local playback while doing this. Mirroring requires the system to produce two video images, one driving the local display and one to be wirelessly delivered to the external screen.
Install Airplay On Mac
AirPlay doesn't just relay video from the computer (or iOS device) to Apple TV. It scales down the video to fit on an HDTV resolution, and has to convert the colorspace from the computer's RGB to the native YUV that televisions use. Both tasks require a lot of processing resources, so without the extra hardware available on newer Macs, mirroring isn't possible.
Users have noted the app AirParrot mimics AirPlay Mirroring on pre-2011 Macs with both video and audio. However, note that live video encoding is a hardware intensive task–so note your Mac will run very hot with the fans on full blast.
Imac Mid 2010 Airplay
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