Comments on: HD Content: Coming to an iPhone Near You?

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By: David

David — Wed, 17 Sep 2008 11:14:17 +0000

Thanks Rene. My videos are for viewing on iphone only. 320p..are you meaning 480 x320?..this aspect ratio seems to still maintain 16x9 format when viewed on quicktime

By: Rene Ritchie

Rene Ritchie — Tue, 16 Sep 2008 16:14:49 +0000

320p for on device, but remember the iPhone has video out cables, including component out, so 480p even 720p files aren't necessarily a waste of space if your intent is a tiny portable HD player...

By: David

David — Tue, 16 Sep 2008 13:58:59 +0000

striatic, what should 1920x1080p footage be rescaled to for ideal use on the iphone?

By: Jay

Jay — Tue, 16 Sep 2008 01:59:39 +0000

I think Gizmodo doesn't have much credibility. I've personally experimented with pushing the playback capabilities of the iPhone, and while I've gotten it to handle video at a higher bitrate than its advertised as supporting, its nothing near HD.

HD is both a resolution, and a statement about quality. As others have pointed out the iPhone has a lower than SD resolution display, and its video output (with apple's cable) is limited to an SD NTSC or PAL signal.

I suspect that someone saw an iPhone playing high quality video to an HD display that was upscaling it and figured the iPhone was putting out HD.

By: striatic

striatic — Tue, 09 Sep 2008 20:33:31 +0000

It doesn't mean anything. If apple wants to offer HD content for the iPhone, it makes sense to "pre-shrink" the video before ever putting it on the phone.

Sure the iPhone can play back HD content, but in practice actually doing so is silly. It makes more sense to re-size the video before putting it on the device. Syncing HD content would be a waste of time and space, since a resized version would look exactly the same.

By: Jeremy Sikora

Jeremy Sikora — Tue, 09 Sep 2008 20:00:30 +0000

While I agree with you, Gizmodo source says they've seen a iPhone play the video perfectly. Make of it what you will. Either way, it's too much.

"Logically speaking, it shouldn't be a huge surprise. But a friend in the industry told us that they've seen H.264 1080P video playing on the iPhone, quite a few times, with no problems at all. Of course, the resolution is absurd overkill for the system's screen, but what's this mean in light of the purported iTunes 8 HD? Potentially a lot."

By: Anthony bandiero

Anthony bandiero — Tue, 09 Sep 2008 19:53:05 +0000

looks like a lot of hype for something the iPhone screen cannot even handle. People just go crazy with anything HD related.

By: Jeremy Sikora

Jeremy Sikora — Tue, 09 Sep 2008 19:49:39 +0000

Take it up with Gizmodo...

By: Mike Scott

Mike Scott — Tue, 09 Sep 2008 19:45:26 +0000

The iPhone can't handle 1080p content "just fine", because 1080p requires a resolution of 1920 x 1080 pixels, and the iPhone has 480 x 320. It can't do 720p either, which is 1280 x 720. In fact, it can't even do 480p. All it can do for any of those formats is play a downscaled version, and the 480p, 720p and 1080p versions will be indistinguishable once downscaled.