IPhone – Copy Video from Mac to iPhone

Emailing full resolution photos or videos

On your iPhone open your camera roll and navigate to the overview screen where all your recent captures are shown via small square icons. Press and hold on the icon for the video you wish to move to your computer and select copy from the pop-up menu that appears.

Still on your iPhone open Mail and create a new message. In the body of the message, press and hold the cursor, and select paste from the pop-up menu. The message you send will now have the full, unadulterated video attached which you can download on your desktop.

Note: on my iPhone 4 I created a 4 second clip with very little motion and it used 6 MB. You may hit your attachment limit very quickly depending on length and resolution.

There are no known solutions for video input to the iPhone (other than the built-in camera of course). The AV cable you mentioned only provides video output and since there are no pins for video input on the dock connector (although the pinouts have often changed during the history of the dock connector), and the iPhone has no other inputs suitable for video input, this is very unlikely to happen with current iPhone/Pod/Pad models.

The closest solution I can think of would be to use an external recording device (a computer with a video capture device for example) and stream the resulting video the the iPhone over Wifi.