Camera board • Re: Low FPS video capture through libcamerify

Code:

v4l2-ctl -L --all -d /dev/v4l-subdev0

Code:

Driver Info:Driver version   : 6.6.31Capabilities     : 0x00000000User Controls                       exposure 0x00980911 (int)    : min=1 max=2446 step=1 default=74 value=171                horizontal_flip 0x00980914 (bool)   : default=0 value=0 flags=modify-layout                  vertical_flip 0x00980915 (bool)   : default=0 value=0 flags=modify-layoutCamera Controls             wide_dynamic_range 0x009a0915 (bool)   : default=0 value=0 flags=modify-layout             camera_orientation 0x009a0922 (menu)   : min=0 max=2 default=2 value=2 (External) flags=read-only0: Front1: Back2: External         camera_sensor_rotation 0x009a0923 (int)    : min=180 max=180 step=1 default=180 value=180 flags=read-onlyImage Source Controls              vertical_blanking 0x009e0901 (int)    : min=40 max=8387184 step=1 default=1198 value=1198            horizontal_blanking 0x009e0902 (int)    : min=5520 max=5520 step=1 default=5520 value=5520 flags=read-only                  analogue_gain 0x009e0903 (int)    : min=112 max=960 step=1 default=112 value=112                red_pixel_value 0x009e0904 (int)    : min=0 max=4095 step=1 default=4095 value=4095          green_red_pixel_value 0x009e0905 (int)    : min=0 max=4095 step=1 default=4095 value=4095               blue_pixel_value 0x009e0906 (int)    : min=0 max=4095 step=1 default=4095 value=4095         green_blue_pixel_value 0x009e0907 (int)    : min=0 max=4095 step=1 default=4095 value=4095                   notify_gains 0x009e0909 (int)    : min=1 max=65535 step=1 default=256 dims=[4] flags=has-payloadImage Processing Controls                 link_frequency 0x009f0901 (intmenu): min=0 max=0 default=0 value=0 (450000000 0x1ad27480) flags=read-only0: 450000000 (0x1ad27480)                     pixel_rate 0x009f0902 (int64)  : min=585600000 max=585600000 step=1 default=585600000 value=585600000 flags=read-only                   test_pattern 0x009f0903 (menu)   : min=0 max=4 default=0 value=0 (Disabled)0: Disabled1: Color Bars2: Solid Color3: Grey Color Bars4: PN9                   digital_gain 0x009f0905 (int)    : min=256 max=65535 step=1 default=256 value=256

Code:

v4l2-ctl -d /dev/video0 -c exposure=30

Code:

void set_exposure(int exposure){ //ms?    int control_fd = open("/dev/v4l-subdev0", O_RDWR);    struct v4l2_control ctrl;    ctrl.id = V4L2_CID_EXPOSURE;    ctrl.value = exposure;    if(ioctl(control_fd, VIDIOC_S_CTRL, &ctrl) == -1){        perror("Setting Exposure");        cleanup(2);    }    close(control_fd);}