Compatible USB Dongles For HDMI In

[IAMASB2]

I am looking for a way to be able to receive an hdmi signal on my raspberry pi 3+ and send that forward that to another raspberry pi 3+ on the same network.

As far as I understand there aren't any other projects that do this but if there are Id love to hear about them.

My current problem seems to be that Im not sure if it's possible to get hdmi input to a raspberry pi 3+. As far as Ive seen the hdmi port that is integrated on the device is output only. This lead me to searching for an external graphics card that world work with linux however almost all of the usb capture cards Ive seen do not work with linux.


My question is do you guys know of any way to get hdmi input into a raspberry pi 3+, or a different way to accomplish the task of streaming video output through a pi to a different device.

[fruitoftheloom]

I am looking for a way to be able to receive an hdmi signal on my raspberry pi 3+ and send that forward that to another raspberry pi 3+ on the same network.

As far as I understand there aren't any other projects that do this but if there are Id love to hear about them.

My current problem seems to be that Im not sure if it's possible to get hdmi input to a raspberry pi 3+. As far as Ive seen the hdmi port that is integrated on the device is output only. This lead me to searching for an external graphics card that world work with linux however almost all of the usb capture cards Ive seen do not work with linux.


My question is do you guys know of any way to get hdmi input into a raspberry pi 3+, or a different way to accomplish the task of streaming video output through a pi to a different device.

USB Display Graphics are Output like the HDMi on the Raspberry Pi.


Though there are USB HDMi Capture devices they require USB3 and quite a powerful PC, but it may be worth a punt if you are prepared to waste £50.00 ??

https://www.ebay.co.uk/itm/1080P-HDMI-t ... 3999437668



There are solutions for HDMi input and a whole post regarding the solutions:

https://www.raspberrypi.org/forums/view ... 8&t=120702

[drgeoff]

HDMI carries uncompressed video. That is in excess of 200 Mbit/s and 1 Gbit/s for Standard Definition and HD respectively. The USB port on a RPi will have problems with SD and HD is a non-starter. So you either need a computer with a USB3 port or a dongle which performs compression on the video from the HDMI input before passing it through to the USB side.

[massimilianonball]

Hi all guys ..may be the new raspberry pi 4 with 2 HDMI ports support the HDMI input, at least on one port??

[mahjongg]

NO!

HDMI outputs are only ever that.

Outputs, for them to function as inputs you need completely different, and much more complex, hardware so NO!

this idea is wishful thinking at best.

[W. H. Heydt]

Hi all guys ..may be the new raspberry pi 4 with 2 HDMI ports support the HDMI input, at least on one port??

Per the previous posts, though, the Pi4B has 2 USB 3 ports. So...you might look at the items already suggested that require USB 3.

[massimilianonball]

Ok Copy ..many thanks for your replies

[HawaiianPi]

Per the previous posts, though, the Pi4B has 2 USB 3 ports. So...you might look at the items already suggested that require USB 3.

You'd still need compression for Full HD (1080p). Although the Pi4 has dual USB 3.0 ports (along with dual USB 2.0 ports), all four USB ports are connected to a single PCIe lane with a shared bandwidth of 4 Gbps. Even the old HDMI 1.0 standard used 4.95 Gbps for 1080p. Although if it was just video with no audio then you might squeak by (3.96 Gbps for 1080p video only, but I'd bet you'd still have a lot of dropped frames).

[massimilianonball]

Many thanks for the replies guys
..so (in my opinion) the best solution to an HDMI input on the pi is still the auvidea's HDMI to CSI bridge..

[fruitoftheloom]

Many thanks for the replies guys
..so (in my opinion) the best solution to an HDMI input on the pi is still the auvidea's HDMI to CSI bridge..

There are other devices, see:

https://www.raspberrypi.org/forums/view ... 5&t=238826

[massimilianonball]

Many thanks for the replies guys
..so (in my opinion) the best solution to an HDMI input on the pi is still the auvidea's HDMI to CSI bridge..

There are other devices, see:

https://www.raspberrypi.org/forums/view ... 5&t=238826

I've already read that discussion but it seems to be that the firmware used for that product it's unsupported, read here for more details.

I quote below part of that post:

Code: Select all

I will stress again, the use of the firmware is unsupported, and may be removed at a future point in time. It was code written for a demo, and is quite likely to include bugs. The use of the kernel drivers is very strongly recommended.

[fruitoftheloom]

Many thanks for the replies guys
..so (in my opinion) the best solution to an HDMI input on the pi is still the auvidea's HDMI to CSI bridge..

There are other devices, see:

https://www.raspberrypi.org/forums/view ... 5&t=238826

I've already read that discussion but it seems to be that the firmware used for that product it's unsupported, read here for more details.

I quote below part of that post:

Code: Select all

I will stress again, the use of the firmware is unsupported, and may be removed at a future point in time. It was code written for a demo, and is quite likely to include bugs. The use of the kernel drivers is very strongly recommended.

Yes quite so as not a mind reader did not know you were aware of the $20 input board.

The Auvidea is not fully supported either and a lot more expensive.

There was a comment that Auvidea is more a hardware than software vendor.

I am aware of 3/4 threads regarding posters getting this to work out of the box, with various degrees of success...

[EksDeRoflcopta]

Per the previous posts, though, the Pi4B has 2 USB 3 ports. So...you might look at the items already suggested that require USB 3.

You'd still need compression for Full HD (1080p). Although the Pi4 has dual USB 3.0 ports (along with dual USB 2.0 ports), all four USB ports are connected to a single PCIe lane with a shared bandwidth of 4 Gbps. Even the old HDMI 1.0 standard used 4.95 Gbps for 1080p. Although if it was just video with no audio then you might squeak by (3.96 Gbps for 1080p video only, but I'd bet you'd still have a lot of dropped frames).

Alright but how about 720p?

[Brad Q]

The chip limit on the Pi4 USB is 350MBps(total). So inputting HDMI uncompressed is pretty much a no go at any real level. IF we knew what you were actually trying to accomplish we might be able to offer more help. VNC?

[jj_0]

Another USB HDMI capture device is discussed here: https://www.raspberrypi.org/forums/view ... 5&t=253807

[jeedee23]

Hi,

To kill all ideas about streaming video (UHD or 4K) over an existing network: IT WILL NOT WORK.

Personally, I tried this yeasr ago, and also again recently. Wouldn'it be nice:
1. Having multiple sources of hdmi streams playing in your house (digital tv for Mary, VLC streaming for Joe, a game online for Jack, and Timothy wants to look Netflix also...)
2. All sources can be seen by all devices in the network (a tv, a laptop, a tablet, another TV)

It will not, and cannot work. The bandwith is simply to large and consumes more than you can take. Maybe in the future with the 1000 Gb/s networks...

But now we are stuck with the 1 Gb/s networks. Luckily for us, HDMI streaming needs 'only' 100 mbps.
What did I do?
I installed in my whole house every network cable double which means, that I have two network outlets in each room (10 years ago I did this, if I knew then what I kno now, I would have tripled it, it's only cables), forget wireless, it won't work, ever.

So then I bought multiple transmitters and receivers, connected them through a switch, so all transmitters can send to all receivers.
But then comes the catch ...