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Mac hdmi adapter lightning
Mac hdmi adapter lightning







mac hdmi adapter lightning
  1. MAC HDMI ADAPTER LIGHTNING MAC OS
  2. MAC HDMI ADAPTER LIGHTNING 1080P
  3. MAC HDMI ADAPTER LIGHTNING SERIAL
  4. MAC HDMI ADAPTER LIGHTNING FULL
  5. MAC HDMI ADAPTER LIGHTNING SOFTWARE

The encoded data is transferred as packetized data across the Lightning bus, where it is decoded by the ARM SoC and pushed out over HDMI. Airplay itself (the network protocol) is NOT involved in this process. Airplay uses a bunch of hardware h264 encoding technology that we’ve already got access to, so what happens here is that we use the same hardware to encode an output stream on the fly and fire it down the Lightning cable straight into the ARM SoC the guys at Panic discovered.

mac hdmi adapter lightning

MAC HDMI ADAPTER LIGHTNING SERIAL

Again, it’s just a high speed serial interface. Lightning doesn’t have anything to do with HDMI at all. It’s vastly the same thing with the HDMI adapter. The GPIB adapter contains all the relevant Lightning -> GPIB circuitry. If you wanted to produce a Lightning adapter that offered something like a GPIB port (don’t laugh, I know some guys doing exactly this) on the other end, then the only support you need to implement on the iDevice is in software- not hardware. We did this to specifically shift the complexity of the “adapter” bit into the adapter itself, leaving the host hardware free of any concerns in regards to what was hanging off the other end of the Lightning cable. Contrary to the opinions presented in this thread, we didn’t do this to screw the customer. There is no clever wire multiplexing involved. The reason why this adapter exists is because Lightning is simply not capable of streaming a “raw” HDMI signal across the cable. I wish I could offer more details then this but I’m posting as AC for a damned good reason. There’s a set of kernel modules that handle the low level data transfer and HDMI output, but that’s about it. It boots straight into a daemon designed to accept incoming data from the host device, decode that data stream, and output it through the A/V connectors.

mac hdmi adapter lightning

MAC HDMI ADAPTER LIGHTNING MAC OS

There’s no shell in the image, there’s no utilities (analogous to what we used to call the “BSD Subsystem” in Mac OS X). The firmware environment doesn’t even run launchd. It is true that the kernel the adapter SoC boots is based off of XNU, but that’s where the similarities between iOS and the adapter firmware end. Interestingly, an anon “Apple Engineer” also commented at Panic:Īirplay is not involved in the operation of this adapter. All apple specs point to the device in some sort of USB host/device configuration. We are hard at work on providing line out /dac on our upcoming Braeburn pro. AirPlay seems conceivable, but my bet is on the adapter using the iOS device in data mode. If you can zoom in on the lightning plug there should be markings, a,b,c, or d.

mac hdmi adapter lightning

The adapter probably gets a command from the iOS device to play a data stream. Most likely the adapter uses a variation of USB slave mode. Update: Our friends at Braeburn and an anonymous Apple Engineer sent along their takes on the situation below: Rather than making a larger Lightning cable, it sacrificed on wired video-out quality and HDMI (And VGA?) cable costs. Why would Apple do this? It’s likely Apple wants to move people to AirPlay wireless streaming to Apple TV, so this is just a stopgap solution. How? Panic thinks that it is actually streaming an AirPlay network signal through the cable, and the ARM processor is decoding it. We knew way back in September that the 8-pin adapter wouldn’t carry video natively, but Apple was able to build a cable.

MAC HDMI ADAPTER LIGHTNING FULL

What’s more interesting is that they split open the cable and found a full ARM processor with 256MB of RAM to process video signals inside the adapter cable.

MAC HDMI ADAPTER LIGHTNING 1080P

In fact, when mirroring, Apple says the optimum resolution is 1,600-by-900, and, when that signal is shown on a 1080p display, it is likely up-converted, showing artifacts consistent with streaming and uncompressing video data

MAC HDMI ADAPTER LIGHTNING SOFTWARE

The fine software developers over at Panic are working on some new AV software, and they are investigating Apple’s new-ish Lightning Digital AV Adapter. What they found is that unlike the earlier 30-pin module, the Lightning adapter doesn’t carry a native 1080p signal. The hacked apart cable costs as much as a Roku because it has the same kind of horsepower









Mac hdmi adapter lightning