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  • Downgrade quality

    Hi,

    I've just bought a ACT74 Campark for surveillance purpose.
    The idea is to record at least for 48 hours (without fetching the data).
    I've got a good battery (20A) and a 64 GB sd card. Despite the gear, the video quality is too high (1min = 250mb) and I wish to downgrade the quality for the recordings.
    It's only for vehicle counting, so I guess 800x600 would do the job and 10 to 20 fps could be fine.

    Can anyone give me an advice on firmware or script I could run ??

    Thanks a lot !

  • #2
    Hi again,
    I went through the firmware image. Here is the link to the backup.zip : https://drive.google.com/file/d/0B2t...ew?usp=sharing

    So far, I found in camera.cfg :

    used_video_size = 1
    key_support_video_size = 1280x720,1920x1080,1920x1088,2560x1440,640x360,204 8x1520,2688x1520,3840x2160,3200x1800,672x380,3264x 2448,3264x1836,1632x918
    key_default_video_size = 1920x1080

    ;-------------------------------------------------------------------------------
    ; device id
    ; for two camera devices with one CSI
    ;-------------------------------------------------------------------------------
    device_id = 1

    used_preview_size = 1
    key_support_preview_size = 480x270,640x360,960x540
    key_default_preview_size = 640x360

    used_video_size = 1
    key_support_video_size = 1280x720,1920x1080
    key_default_video_size = 1280x720

    In menu.cfg


    ############################
    # 录像分辨率
    # 0 4K 30FPS
    # 1 2.7K 30FPS
    # 2 1080P60FPS
    # 3 1080P30FPS
    # 4 720P120FPS
    # 5 720P60FPS
    # 6 720P30FPS
    ############################
    [video_resolution]
    current=3
    count=7

    I guess the Imx179 can support low resolution.

    Has anyone found how to add/replace a menu entry and the compatible setup ?
    Cheers
    Last edited by Coversky; 05-03-2017, 09:59 PM.

    Comment


    • petesimon
      petesimon commented
      Editing a comment
      thanks for the "campark to be your eyes" firmware! hehe. i like that slogan it's the best slogan for these cams that I have seen so far.
      attention @nutsey
      Code:
      Product:  
         fuxin4k30imx179s90fps-sdv
      Manufacturer:  
         lzm
      Short id:  
         fuxin
      OEM id:  
         zhongxing_ir
      Camera type:  
         fx2830
      FW orig. date:  
         20170227
      FW mod. date:  
         20170222
      Camera name:  
          ACT74
      Version:  
         C 20170223 V23
      LCD model:  
         st9341fxst
      LCD resolution:  
         320x240  
      LCD count:  
         1
      Sensor model:  
         imx179s

    • Antonbeard
      Antonbeard commented
      Editing a comment
      Coversky, what bitrate do you need?

  • #3
    Antonbeard : I guess around 1 Mbps would do, but I'm not sure.

    I found kizwan's post #288 dealing with a similar investigation. If I understood it right, I have to find where to edit my sdv file...
    @Rodrigo Emedy, Since you have a cams with Sony IMX179s sensor, why do not you try one of the firmwares available on GoPrawn that have the motion...

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