Hdmi grabber?

Hello would anyone know if this device could work as a HDMI video grabber with passthrough?

Its shows its compatible with linux..

Ok ill order one up and see

Sorry for the delay.. just ordered it should see it in April..

Ok well got this device sooner then expected, hopefully its plug and play...

Maybe a dev can chime in to guide me on how to see if we can make it work..

i got this from HyperCon

ssh in: hyperion-v4l2:
ssh in: version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
ssh in: build time: Apr 5 2018 01:57:25
ssh out: VIDIOC_S_STD ERROR 25, Inappropriate ioctl for device
sftp getFile(./screenshot.png, java.awt.Image)

and from putty

pi@raspberrypi:~ $ v4l2-ctl --list-devices
ezcap U3 capture (usb-20980000.usb-1.3):
/dev/video0

Zitat von TPmodding

try it this way

https://hyperion-project.org/w…-V42L-Grabber-USB-Grabber

it is also a video0...try to make a screenhsot

this is the output?

pi@raspberrypi:~ $ sudo hyperion-v4l2 --width 320 --height 180 --screenshot
hyperion-v4l2:
version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
build time: Apr 5 2018 01:57:25
V4L2GRABBER INFO: width=640 height=480
V4L2GRABBER ERROR: Only pixel formats UYVY, YUYV, and RGB32 are supported ERROR

this is -lshw output

*-usb:1
description: Video
product: ezcap U3 capture
vendor: VXIS Inc
physical id: 3
bus info: usb@1:1.3
version: 1.00
capabilities: usb-2.10
configuration: driver=snd-usb-audio maxpower=500mA speed=480Mbit/s

This is what -v4l2-ctl --all outputs.

pi@raspberrypi:~ $ v4l2-ctl --all
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : ezcap U3 capture
Bus info : usb-20980000.usb-1.3
Driver version: 4.9.35
Capabilities : 0x84200001
Video Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 1: ok)
Format Video Capture:
Width/Height : 640/480
Pixel Format : 'MJPG'
Field : None
Bytes per Line: 0
Size Image : 614400
Colorspace : SRGB
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 640, Height 480
Default : Left 0, Top 0, Width 640, Height 480
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 640, Height 480
Selection: crop_bounds, Left 0, Top 0, Width 640, Height 480
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
brightness (int) : min=0 max=255 step=1 default=-8193 value=128
contrast (int) : min=0 max=255 step=1 default=57343 value=128
saturation (int) : min=0 max=255 step=1 default=57343 value=128
hue (int) : min=-32 max=31 step=1 default=-8193 value=0
brightness (int) : min=0 max=255 step=1 default=-8193 value=128
contrast (int) : min=0 max=255 step=1 default=57343 value=128
saturation (int) : min=0 max=255 step=1 default=57343 value=128
hue (int) : min=-32 max=31 step=1 default=-8193 value=0

I guess MJPG isnt a supported format.. well i guess thats $100 wasted.. but was worth the try... if anyone has any other way to get this to work please chime in..

Zitat von TPmodding

https://elinux.org/Thread:Talk:Jetson/Cameras/How_to_do_I_change_the_USB_camera_resolution?/reply

can you try to set another pixel format?

pi@raspberrypi:~ $ v4l2-ctl -v width=1280,height=720,pixelformat=BGR32
pi@raspberrypi:~ $ sudo hyperion-v4l2 --width 320 --height 180 --screenshot
hyperion-v4l2:
version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
build time: Apr 5 2018 01:57:25
V4L2GRABBER INFO: width=640 height=480
V4L2GRABBER ERROR: Only pixel formats UYVY, YUYV, and RGB32 are supported ERROR

pi@raspberrypi:~ $ v4l2-ctl --set-fmt-video=width=1920,height=1080,pixelformat=YUYV
pi@raspberrypi:~ $ sudo hyperion-v4l2 --width 320 --height 180 --screenshot hyperion-v4l2:
version : V1.03.4 (brindosch-c750c41/dc6a602-1522918225
build time: Apr 5 2018 01:57:25
V4L2GRABBER INFO: width=640 height=480
V4L2GRABBER ERROR: Only pixel formats UYVY, YUYV, and RGB32 are supported ERROR

this is the problem for sure, when i do a v4l2-ctl --list-formats 'MJPG' is the only supported pixel format, like I said I guess this means I'am out of luck

pi@raspberrypi:~ $ v4l2-ctl --list-formats
ioctl: VIDIOC_ENUM_FMT
Index : 0
Type : Video Capture
Pixel Format: 'MJPG' (compressed)
Name : Motion-JPEG

I'm willing to try anything with some guidance, I have some linux experience but nothing crazy to the standards of a developer..

Zitat von b1rdhous3

Hm I don't know exactly how it works but I took a quick look in the sourcecode.
Perhabs it is possible to implement it for hyperion. But I don't how different & difficult the implementation would be.

@Paulchen-Panther do you have an idea?

I'm willing to try anything with some guidance, I have some linux experience but nothing crazy to the standards of a developer..

So I guess nothing we can do?

Zitat von Paulchen-Panther

Please excuse me for contacting you so late. I had a look last weekend and i think it is possible to implement the MJPEG encoding. I will come to programming this Sunday.
I have no V4L2 device what MJPEG outputs, so I will try to use a virtual device.
I will not forget you, I promise.

That awesome thanks... let me know and I'm More then willing to test and try what you need

Zitat von Paulchen-Panther

Could you test my branch? I added some debug output in case it did not work. So please start Hyperion with the debug switch. (hyperion -d)
If any questions, please do not be shy.
Note: Please install the additional dependency libjpeg-dev (sudo apt-get install libjpeg-dev)

You might need to dumb that down for me sorry. How do I install your branch of hyperion?