iPhone Enable HD on iPhone 3GS w/o JB

Discussion in 'Jailbreaks and iOS Hacks' started by cheesyappleuser, Sep 9, 2012.

  1. cheesyappleuser macrumors 6502a

    cheesyappleuser

    Joined:
    Apr 5, 2011
    Location:
    Portugal
    #1
    Hi everyone! :)

    I'm about to record some videos with my iPhone 3GS and, since my iPhone 4 is going to be recorded on those videos, I have to use it - those are my only recording devices that work.

    The problem is, the iPhone 3GS only records at 640x480. In fact, I found this thread: http://forums.macrumors.com/showthread.php?t=1028982
    However, I don't have JB on the iPhone, and I don't actually want to JB it just to record some videos. Is there a way to hack into the Private files and backup-subsequently replace the original files with these ones, in order to enable HD on the 3GS?

    Best regards,
    Pedro.
     
  2. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #2
    You can't do that. And even with the modification, the 3Gs still only captures 640x480 worth of pixels. It just packages them differently. Rather sad that it truly is limited to VGA resolutions.
     
  3. balamw Moderator

    balamw

    Staff Member

    Joined:
    Aug 16, 2005
    Location:
    New England
    #3
    MOD NOTE: Even though it's not necessarily a JB, it's still a hack. So maybe the folks in the Hacks forums will know something about this.

    B
     
  4. gngan macrumors 68000

    gngan

    Joined:
    Jan 1, 2009
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    MacWorld
    #4
    How can a VGA TV watch HD? Don't make sense to me.
     
  5. Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
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    #5
    In a nutshell, the 3Gs' camera and CPU are able to capture and transcode 720p video. Apple of course wouldn't allow this as they'd have to save a feature for their next iPhone. It was found out that on iOS 4, you could change the image capture settings to make it record a 720p video frame, instead of a VGA one. However, it doesn't really capture 720p worth of pixels. It just makes the current pixels bigger to fill the 720p frame and then puts it in a 720p container. The end result is a VGA video that has been resized to 720p with some slight quality loss. This same procedure has been attempted with the iPhone 4 and 1080p video capture with similar results. Some people have even gotten the 3Gs to fill a 1080p frame with VGA pixels with the same low quality results.
     
  6. cheesyappleuser thread starter macrumors 6502a

    cheesyappleuser

    Joined:
    Apr 5, 2011
    Location:
    Portugal
    #6
    You mean that if I use some sort of video edition program to put the video at 960x720 pixels I'll get the same result but I don't need to JB?
     
  7. Dkorda macrumors 6502

    Joined:
    Mar 7, 2012
    #7
    Just get a 4S dude. They're cheap on CL
     
  8. cheesyappleuser thread starter macrumors 6502a

    cheesyappleuser

    Joined:
    Apr 5, 2011
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    #8
    LOL is that a joke?!
     
  9. Menneisyys2, Sep 10, 2012
    Last edited by a moderator: Sep 17, 2012

    Menneisyys2 macrumors 603

    Joined:
    Jun 7, 2011
    #9
    It depends. I've made a lot of tests and found out that it does deliver far better resolution. .

    HOWEVER! At least under 4.x (I haven't tested this under 5.x yet - will do some time when I update my Video Camera Enhancer Cydia app), you'll be facing the infamous "clicking" problem, which is a real PITA.

    All in all, I only recommend hacking if you aren't bothered by the clicking problem.

    ----------

    Please read my past articles - in them, I've explained what's possible on the 3GS and what not.
     
  10. cheesyappleuser, Sep 10, 2012
    Last edited by a moderator: Sep 17, 2012

    cheesyappleuser thread starter macrumors 6502a

    cheesyappleuser

    Joined:
    Apr 5, 2011
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    Portugal
    #10
    From what I understood, most 3GS hacks don't do anything but the full sensor does. I have three questions: what is the resolution that the full sensor uses, does it produce a fluid or a choppy video, and where can I download the files for v5.1.1. It seems that I'll have to re-JB my iPhone for a day, but I don't really care :p
     
  11. Menneisyys2 macrumors 603

    Joined:
    Jun 7, 2011
    #11
    1, the full sensor, oversampling

    2, IIRC it's pretty fluid (as opposed to oversampling the entire sensor on the iPhone 4), apart from the occasional clicks

    3, nowhere ATM, albeit now that a lot of people have asked for a 5.x-compliant version, I really may update my camera enhancer. In the meantime, you can just edit the plist files yourself.
     
  12. cheesyappleuser thread starter macrumors 6502a

    cheesyappleuser

    Joined:
    Apr 5, 2011
    Location:
    Portugal
    #12
    Sure, I don't mind to update the files from myself - via iFile.
    I just need to know what do I have to modify, because I'm really unaware of it.
     
  13. Intell, Sep 10, 2012
    Last edited by a moderator: Sep 17, 2012

    Intell macrumors P6

    Intell

    Joined:
    Jan 24, 2010
    Location:
    Inside
    #13
    Yes.

    You're suggesting that this hack works on iOS 3. It does not at all. The clicking problem starts happening in iOS 4.2 and upwards. The overall gain is hardly noticeable and the real quality is about the same as a VGA stretched to HD sizes.
     

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