iOS 11 & HEVC/H.265?

Discussion in 'iOS 11' started by 007p, Jun 5, 2017.

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  1. Djilkosh macrumors regular

    Djilkosh

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    Serbia
  2. djcristi macrumors member

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    Oct 20, 2013
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    Bucharest , Romania
    #152
    small quality loss but great compression gain, for those who want quality can use the Manual app to shoot RAW-DNG
     
  3. Superhai macrumors 6502

    Superhai

    Joined:
    Apr 21, 2010
    #153
    Yes, most third party camera apps support RAW or some lossless format. HEIF image quality will improve with upgrades to the HEVC encoder, and when apps gain HEVC compatibility, there will be options to choose quality vs size of the stored image. I am curious if the Apple have chosen rather low quality setting in its camera app, to ensure fast storage and very little lag. I have converted some RAW images to HEIF in FFMPEG with the “placebo” setting and and quality setting equal to creating file size a typical “80%” jpeg quality file gives and the quality is remarkably better.
     
  4. buklauu macrumors newbie

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    Sep 14, 2017
    #154
    You might save space but transcoding from JPG to HEIC/HEVC might make them look worse. Ideally a copy of the originals (before it was converted to JPG/H.264) would be used to create the new HEIC/HEVC versions.
     
  5. recoil80 macrumors 68000

    Joined:
    Jul 16, 2014
    #155
    How did you import the video?
    I used the utility image capture and when I open the video in the player I read H264.
    By the way the video is really laggy on my iMac, while it plays smooth on the iPhone. I'm talking about the 4K video at 60fps, the 1080 version is smooth on the Mac as well

    I haven't upgraded to High Sierra yet, so that might be the reason why it is converted in H264
     
  6. lawyerchu macrumors newbie

    lawyerchu

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    Oct 26, 2017
    #156
    I believe when you share your HEVC picutres or films with AirDrop, it always will be converted in jpeg or H.264 format.
    https://support.apple.com/en-us/HT207022
     
  7. Maxwill macrumors member

    Maxwill

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    #157
  8. simonmet, Nov 2, 2017
    Last edited: Nov 3, 2017

    simonmet macrumors 65816

    simonmet

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    Sydney, New South Wales
    #158
    This has been implemented poorly.

    First, better compression efficiency should not be an excuse to reduce quality, rather the opposite! They should’ve used a compression setting for HEIF that at least matched the quality of the former JPGs, if not exceeded it. A 40-50% size reduction would’ve still been great. 80-100% is overkill.

    Personally I would’ve liked a lossless option as well, which I’m sure HEIF supports, but I guess I have to buy a third-party camera app for that which is stupid.

    I can’t help but think Apple gets almost nothing right in software anymore.
     
  9. Hitchophilia macrumors member

    Hitchophilia

    Joined:
    Feb 24, 2010
    #159
    So I just got my iPhone X and iOS11.1..

    Seems I can have jpg for photos and HEVC for 4k60p.

    [​IMG] [​IMG]

    This was verified when importing the files through image capture on High Sierra.

    Seems you can have the best of both worlds. Anyone else confirm?
     

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