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SJCAM SJ8 Pro MODx custom firmware.

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  • #16
    Hi Nutsey

    I made some measurements of real bitrate in 4K and 1080 (only), with the different value of the "Video Quality" parameter which acts directly on the bitrate
    (logically)!.
    Note: these are minimal mesured bitrates with camera lens obscured. Here is the result for V1.2.8 and for your MOD 1 (V.1.2.7)

    _______________________________________V.1.2.8____ MOD1 V1.2.7

    4K 60FPS - Videop Quality set to ECONOMY..... 51 kBits .......63 kBits
    4K 60FPS - Video Quality set to NORMAL.......... 64 kBits....... 82 kBits
    4K 60 FPS - Video Quality set to FINE ..............105 kBits .....131 kBits

    1080 60FPS - Videop Quality set to ECONOMY 20 kBits .......20.6 kBits
    1080 60FPS - Video Quality set to NORMAL..... 20 kBits....... 20.6 kBits
    1080 60 FPS - Video Quality set to FINE ...........20 kBits ........41 kBits

    CONCLUSION:
    - It seems that SJCAM forgot to increase the bit rate in 1080 resolution for NORMAL and FINE value of the "Video quality" parameter. (I just wrote them about this issue)
    - Hopefully your mod acts on the "FINE" setting ! So, to enjoy the benefits of your MOD in 1080, the video quality must absolutely be set to "FINE", and
    here we get a very good image quality.

    Best regards
    Last edited by steph31fr; 10-27-2018, 06:09 PM.

    Comment


    • #17
      MOD2 is here. Check the 1st post for the link.
      Last edited by nutsey; 11-01-2018, 04:17 PM.
      Do you find this site useful and interesting? Please support it by donating here.

      Email me if you have any offers, requests or ideas.

      Comment


      • #18
        What are the bitrates of MOD2 (based on 1.2.9)?
        What more changes does this MOD have?
        Is it safe to use this MOD?

        Comment


        • nutsey
          nutsey commented
          Editing a comment
          1. Same as MOD1.
          2. Max analogue sensor gain lowered to get less noisy picture.
          3. I have no idea. Hope so.

      • #19
        I know this thread is about SJ8 Pro custom fw, but I would like to ask if there will be any custom firmware for SJ8 Plus to increase its bit rates too.

        Comment


        • nutsey
          nutsey commented
          Editing a comment
          I've successfully unpacked SJ8 Plus firmware and found many interesting stuff in it like bitrates and image processing settings, but no custom firmware release for newer hardware is possible without having a device in hand.

        • massacre
          massacre commented
          Editing a comment
          Good news!

      • #20
        Someone with SJ8 Pro with MOD1 or MOD2 firmware can post raw samples at 4k30 EIS ON and 4k60 ?

        Comment


        • nutsey
          nutsey commented
          Editing a comment
          I'm joining this request. It would be nice to see a 4k60 footage called by some users 'awful noisy image' shot in low light/indoors.

        • steph31fr
          steph31fr commented
          Editing a comment
          As requested, here are two new Raw samples (outside, clowdy weather) for V1.29 MOD2, moving the cam approximatively the same way for both to check the GYRO

          Common parameters for Both:EV=0, White balance=Auto, Color profile=SJCAM Vivid, Sharpness=Standard, Distorsion=Off, Video Quality=Standard, ISOMax6400


          SJ8 PRO V129 Mod2 4K 30FPS GYRO QStandard.mp4
          https://turbobit.net/9iz1lxuco8rg.html

          SJ8 PRO V129 Mod2 4K 60FPS QStandard.mp4
          https://turbobit.net/s595h00bvpx0.html

          and finally, enjoy the auful noisy mode (4K 60FPS): Indoor, one window opened with very cloudy morning wether and just 2 lights in the room.
          SJ8 PRO V129 Mod2 4K 60FPS QStandard INDOOR.MP4
          https://turbobit.net/7222qdverzjf.html


          ​​​​​​​Best regards
          Last edited by steph31fr; 11-13-2018, 06:38 AM.

        • petesimon
          petesimon commented
          Editing a comment
          turbobit links are dead. please use permanent/perpetual free storage such as:
          - google drive
          - dropbox
          - pcloud
          - yandex disk
          - mega nz

      • #21
        Guys. Is anybody here experiencing problems with distortion correction?
        Do you find this site useful and interesting? Please support it by donating here.

        Email me if you have any offers, requests or ideas.

        Comment


        • AussieKev
          AussieKev commented
          Editing a comment
          Don't have SJ8 Pro. Can't help, but if I see anything on other sites I'll link.

      • #22
        Originally posted by nutsey View Post
        Guys. Is anybody here experiencing problems with distortion correction?
        hi
        This is my problem with distortion correction 1080p60.
        "I would like to show you the problem that I have in my camera (1080P 60, FW 1.2.4, 1.2.7, 1.2.9). When the correction is on, there is a large video distortion on the left side of the image (rolling). From up to down."

        https://drive.google.com/open?id=1C3...BK2gMEN-y7Wqs0

        Comment


        • nutsey
          nutsey commented
          Editing a comment
          I can see the same on the right side (maybe slightly less visible).

        • nutsey
          nutsey commented
          Editing a comment
          I can be wrong, but I'd say the lens was changed in final SJ8 Pro version but the distortion profile left unadjusted.

        • dargor
          dargor commented
          Editing a comment
          On the right side there is much less distortion. I reported to sjcam and no reply. Bireate is still very low for 1080p,1080p 120 is only double 60 frames, nothing has changed. I use your mod. thanks.
          Last edited by dargor; 11-10-2018, 01:37 PM.

      • #23
        Hi!

        I'm waiting from Spain for my Gerbest Black Friday Sjcam8 PRO . I have a doubt regarding h264 and h265. Does the mod take effect over h265 enconding aswell?. What encoding do you guys use? H264 or h265?. Clearly h265 has the size advantage but I'm not sure about the quality comparing to h264 with the same recording settings.

        Comment


        • #24
          hallo
          next problem.
          I would like to show you my 1080p 60. link:
          https://www.youtube.com/watch?v=xMnn...ature=youtu.be
          I have problem, when gyro is turned on. The video has a vibration (shakes,jump) effect from
          time to time. I have a question for you. Can you check in yours
          sj8pro at 1080p 60 with fast horizontal motion like in my
          video. Is this efect in your camera also? I do not know if this is a software or camera problem.
          Look at the trees.

          Comment


          • #25
            Hey There,

            Is it possible to activate the gyro in the firmware for 1440p 60fps and 2,7k60 fps? i think hardware side it would be working.

            Comment


            • sjcammer
              sjcammer commented
              Editing a comment
              Possible to get a beta mod release for 1440p 60fps and 2,7k60 fps for testers?

            • nutsey
              nutsey commented
              Editing a comment
              Are you ready to get your cam bricked? There are no ways to unbrick it yet.

            • sjcammer
              sjcammer commented
              Editing a comment
              I understand the difficulty now.

          • #26
            Hi!

            Nice mod, thank you. But... I miss one thing from this cam very much: a loud BEEP when starting and stopping recording (two different sounds would be subservient). What do you think, is it solvable?

            Comment


            • rocksarkany
              rocksarkany commented
              Editing a comment
              Yes it does. It makes sound when switching on/off, and at photo capturing. But silence when starting or stopping recording . This makes very uncomfortable to use the cam when it is on a helmet, for example. Especially, when the cam is on, but the srceen is off, the recording button first switches on the screen, and a second press is needed to start recording. So, in a nutshell: the user always has to check on the cam, that starting/stopping the recording was succesfull or not.

            • nutsey
              nutsey commented
              Editing a comment
              I don't see any muted audio files for video recording indication so it should be implemented by SJCAM first...

            • rocksarkany
              rocksarkany commented
              Editing a comment
              Bad news... but, thank you.

          • #27
            Hi, can you possibly adjust the microphone pick sensitivity?
            I am using an external mic, at volume 6-9 it picks up a lot of wind noise, on vol 1-5, it sounds terrible because the audio quality is very unclear.

            Comment


            • nutsey
              nutsey commented
              Editing a comment
              Hi, it seems like there are two mic gain steps between 5 and 6 values, but I've never tried adjusting any mic-in settings...

          • #28
            Possible to unlock 1080p240?

            Comment


            • nutsey
              nutsey commented
              Editing a comment
              Yes, but only upscaled from 720p240 as 240 fps modes use 3x3 binning sensor readout mode.

          • #29
            Can front LCD have viewfinder mode?

            Comment


            • #30
              Hi, im using MOD3 and it seems 5ghz wifi is not showing on my scan or it has some problem, it is just me or anyone else encounter this? thank you devs!

              Comment

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