Yi hacked resolution 2304x1296 30fps 35Mbits

Discussion in 'Yi Action Camera' started by funnel, May 24, 2015.

  1. Beek

    Beek Member

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    I really struggled with getting these to work on 1.2.13 - I had to downgrade to 1.2.12 and this one worked

    #set video resolution to 1600x1200 60fps
    #writeb 0xC06CC426 0x0C
     
  2. Onion

    Onion New Member

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    Hello all, this is my first post on the forum (after spending 2 weeks of reading everything here).

    I was wondering if it's worth it to increase the recording bitrate any higher than 35. I'm already at 35 and it looks much better than factory, but would 45 be worth it? Is there even a noticeable difference at 30 fps and 60 fps? My memory card can handle the write speed, I use a lexar 633x.
     
  3. punish1985

    punish1985 New Member

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    hello everyone here...

    I found out that if you turned on the loop function with using custom firmwares or scripts that changing the resolutions or birates
    the file splitting will be much more worse...

    just realize this situation today when I turn off the looping function today...normally i use yi camera as dash cam...

    is there anyone who also suffer from the issue, too?
    (the bitrate of first recording might be normal but with the length becoming only seconds left, and the following files with much less bitrates remained. )
     
  4. sid.dagivers

    sid.dagivers New Member

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    to all asking if more than 35mbit makes sence
    yes it does if you turn of denoising
    i was in cave with only few light sources and denoising was turned off. in this case there camera used high iso and there was lot of noise (denoising cleans noise and also details hence lower bitrate can be used) so more data is used to store that noise but 35mbit was not enough so i got compression artifacts (same as if you try recompress video to 4mbit for example) they were gone when i have plenty of light (lower iso /less noise).
    i personally prefer noise over sharpening and denoising(loosing a lot of details)

    i am using 2k resolution and temperature is not an issue for me
    my question is do we have working 50mbit script/fw?

    i updated my cam and bitrate is 22mbit actually
    thank you
     
  5. nutsey

    nutsey Active Member

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    First of all we need to describe the word 'action' when we mention an action camera. And I'm pretty sure no secure action can be done in low light due to common-sense and safety reasons. Otherwise your cam is not an action cam but jackass/stupid cam. I'm not against being nuts (oh, yes I'm not) but just keep that in your mind.
     
    jokiin likes this.
  6. Innoxius

    Innoxius New Member

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    Dash Cam:
    Xiaomi Yi Action
    And exploring a cave? It's action or not?
     
  7. Vayna

    Vayna New Member

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    What's the current highest datarate? Thanks.
     
  8. Techguy0815

    Techguy0815 New Member

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    Location:
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    Dash Cam:
    Xiami Yi 2k Mod
    Just wanted to say Thank you for this useful Hack.

    I also got a question, the US Version of the Yi seems to support 2K natively.
    would it be possible to use that firmware aswell?
     
  9. vatoos

    vatoos New Member

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    If the Yi gets hot, is it no clever to integrate a heat sink, for example as little piece of copper with arctic silver? Which ship would you say gets really hot?

    regards
     
  10. nutsey

    nutsey Active Member

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    It's speleology.
     
  11. Hendy_d

    Hendy_d New Member

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    could you please make full screen FPV for 1920 x 1080 30p? thank you very much.
     
  12. funnel

    funnel Active Member

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    This should work, I didn't try.

    Code:
    #set AV out 4:3 mode
    #1080p 30
    writew 0xC05C2D08 0x0403
     
  13. Hendy_d

    Hendy_d New Member

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    Thank you very much for your reply and code. I think I understand the pattern of this full screen FPV script. The AV Out resolution address is add 4 hex from the resolution address supplied from here : https://github.com/PJanisio/Xiaomi_Yi_autoexec/blob/master/resolution/1.2.13/autoexec.ash.

    The address of resolution for 1920 x 1080 30 p is 0xC05C2D04 so the address for AV Out is 0xC05C2D08. Am I right?
     
  14. funnel

    funnel Active Member

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  15. Hendy_d

    Hendy_d New Member

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    Thank you so much..
     
  16. MeGuinness

    MeGuinness New Member

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    What firmware and scrip combo u guys using to get a recording of
    2304x1296 35fps 35Mbits ?

    Thanx
     
  17. nutsey

    nutsey Active Member

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    There is no 35 fps with 1296p mode...
     
  18. MeGuinness

    MeGuinness New Member

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    Sorry my mistake ,I mean 30fps.
    I tried different combinations,but on the settings still doesn't show at 30 but only at 25....
    Can a slow sd card make the software not showing it the 30fps option on the menu? Thanx
     
  19. nutsey

    nutsey Active Member

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    Switching from PAL to NTSC could be a solution...
     
  20. MeGuinness

    MeGuinness New Member

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    Thanks switching to NTSC did the job and with stock firmware ,does mean that the videos wouldn't be 35Mbits unless now I apply the script?
     
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