iMessage and video quality thoughts..

Discussion in 'iOS 9' started by xero9, Mar 23, 2016.

  1. xero9 macrumors 6502a

    Nov 7, 2006
    So I've noticed something, which probably isn't new to any of you but it got me thinking..

    If someone sends me a video through iMessage the quality is crisp if I'm on wifi at the time it comes through. It looks pretty bad if I'm on LTE. I get that Apple is considering my data usage and I fully understand why they do that (I have no issues with that).

    What I'm wondering is HOW they do this if messages, and I'm assuming attachments, are encrypted end-to-end? I don't see how they could change the compression of the video if they're not able to even see what the stream contains.

    On a side note, it would be nice if it were possible to get the proper quality once back on wifi!
  2. ZEEN0j macrumors 65816


    Sep 29, 2014
    I don't know the answer. But maybe the compression is done locally by the phone and not by Apple. Or maybe just because they can compress doesn't mean they can see the content.

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