node-v4l2camera
node-v4l2camera copied to clipboard
bellbind
missing controls?
node-v4l2camera: 1.0.4 v4l2: 1.6.0-2 distro rasbian (arm6 Bus 001 Device 005: ID 045e:0772 Microsoft Corp. LifeCam Studio
$ v4l2-ctl -l
brightness (int) : min=30 max=255 step=1 default=-8193 value=102
contrast (int) : min=0 max=10 step=1 default=57343 value=5
saturation (int) : min=0 max=200 step=1 default=57343 value=103
white_balance_temperature_auto (bool) : default=1 value=1
power_line_frequency (menu) : min=0 max=2 default=2 value=2
white_balance_temperature (int) : min=2500 max=10000 step=1 default=57343 value=4500 flags=inactive
sharpness (int) : min=0 max=50 step=1 default=57343 value=25
backlight_compensation (int) : min=0 max=10 step=1 default=57343 value=0
exposure_auto (menu) : min=0 max=3 default=0 value=3
exposure_absolute (int) : min=1 max=10000 step=1 default=156 value=156 flags=inactive
pan_absolute (int) : min=-529200 max=529200 step=3600 default=0 value=0
tilt_absolute (int) : min=-432000 max=432000 step=3600 default=0 value=0
focus_absolute (int) : min=0 max=40 step=1 default=57343 value=18
focus_auto (bool) : default=1 value=0
zoom_absolute (int) : min=0 max=317 step=1 default=57343 value=0
brightness (int) : min=30 max=255 step=1 default=-8193 value=102
contrast (int) : min=0 max=10 step=1 default=57343 value=5
saturation (int) : min=0 max=200 step=1 default=57343 value=103
white_balance_temperature_auto (bool) : default=1 value=1
power_line_frequency (menu) : min=0 max=2 default=2 value=2
white_balance_temperature (int) : min=2500 max=10000 step=1 default=57343 value=4500 flags=inactive
sharpness (int) : min=0 max=50 step=1 default=57343 value=25
backlight_compensation (int) : min=0 max=10 step=1 default=57343 value=0
But when i use node-v4l2camera, I only see the first seven...
[
{
"id": 9963776,
"name": "Brightness",
"type": "int",
"min": 30,
"max": 255,
"step": 1,
"default": -8193,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963777,
"name": "Contrast",
"type": "int",
"min": 0,
"max": 10,
"step": 1,
"default": 57343,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963778,
"name": "Saturation",
"type": "int",
"min": 0,
"max": 200,
"step": 1,
"default": 57343,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963788,
"name": "White Balance Temperature, Auto",
"type": "bool",
"min": 0,
"max": 1,
"step": 1,
"default": 1,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963800,
"name": "Power Line Frequency",
"type": "menu",
"min": 0,
"max": 2,
"step": 1,
"default": 2,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": [
"Disabled",
"50 Hz",
"60 Hz"
]
},
{
"id": 9963802,
"name": "White Balance Temperature",
"type": "int",
"min": 2500,
"max": 10000,
"step": 1,
"default": 57343,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": true,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963803,
"name": "Sharpness",
"type": "int",
"min": 0,
"max": 50,
"step": 1,
"default": 57343,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
},
{
"id": 9963804,
"name": "Backlight Compensation",
"type": "int",
"min": 0,
"max": 10,
"step": 1,
"default": 57343,
"flags": {
"disabled": false,
"grabbed": false,
"readOnly": false,
"update": false,
"inactive": false,
"slider": false,
"writeOnly": false,
"volatile": false
},
"menu": []
}
]
Your camera is using the v4l2 extended api, i'm currently working on a patch :)
Try using https://github.com/iglosiggio/node-v4l2camera/ y wrote the patch half an hour ago but i think it'll work.
npm install iglosiggio/node-v4l2camera
This seems to work! I haven't tested fully, but the controls now appear and I can get/set them. I won't have time till this evening to test if that are actually changing (but you might know if getting/setting is enough to prove this works.)
Warning during build:
make: Entering directory '/home/pi/LaserPI/node_modules/v4l2camera/build'
CC(target) Release/obj.target/v4l2camera/capture.o
../capture.c: In function ‘camera_controls_menus’:
../capture.c:468:13: warning: passing argument 1 of ‘error’ discards ‘const’ qualifier from pointer target type
error(camera, "VIDIOC_QUERYMENU");
^
../capture.c:28:13: note: expected ‘struct camera_t *’ but argument is of type ‘const struct camera_t *’
static bool error(camera_t* camera, const char * msg)
^
CXX(target) Release/obj.target/v4l2camera/v4l2camera.o
SOLINK_MODULE(target) Release/obj.target/v4l2camera.node
COPY Release/v4l2camera.node
make: Leaving directory '/home/pi/LaserPI/node_modules/v4l2camera/build'
If you need to always have an RGB or YUV format you can try with this branch https://github.com/iglosiggio/node-v4l2camera/tree/libv4l2 (requires libv4l which emulates the other outputs)
Is there any reason you don't make a pull request for your extended API patch?
Is there any reason you don't make a pull request for your extended API patch?
I did a PR a few years ago. I'm not currently using the library and iirc modern node extensions do not use NAN. I'm not sure if my fork compiles against a modern node.