Ambilight with RPi4, hdmi grabber and Denon AV-reciever

here it is in English
I do not think I have read this solution but can be tested so as not to depend on a splitter which will downscale the 2 outputs of the amplifier splitter or if we do not use the amplifier the splitter and have SDR for the grabber and HDR to the TV since it is the outputs that balance with the lowest output .
Source-> amplifier | -> SDR splitter -> grabber -> PI
| -> TV
Source-> 4k HDR splitter | -> SDR splitter-> grabber -> PI
| -> TV
With this configuration we would keep the HDR 4k HDCP2.2 etc outputs to the TV and to the pi we would have a downscalle to SDR before the grabber? what do you think ??

@Puck Have you tried if Dolby Vision is working? Since I saw from your EDID Emulator your TV should do DV. What does the "HDMI Information" say now, with the cheap Videograbber attached?

Quote from Infest

@Puck Have you tried if Dolby Vision is working? Since I saw from your EDID Emulator your TV should do DV. What does the "HDMI Information" say now, with the cheap Videograbber attached?

My TV does DV, but is limited to 30Hz for DV over HDMI (don't ask me why) so I never really use it on my Shield. If I really want DV I use the app on the TV which means I can't use Ambilight anyway. But to answer your question: I have not tested DV material. The grabber shows up as support for HDR10/HLG only, so no DV. Might work with the EDID Emulator in between, but again, I have not tested this and am not using this right now.

I can do a quick test later today or tomorrow if you want

Quote from Puck

My TV does DV, but is limited to 30Hz for DV over HDMI (don't ask me why) so I never really use it on my Shield. If I really want DV I use the app on the TV which means I can't use Ambilight anyway. But to answer your question: I have not tested DV material. The grabber shows up as support for HDR10/HLG only, so no DV. Might work with the EDID Emulator in between, but again, I have not tested this and am not using this right now.

I can do a quick test later today or tomorrow if you want

Yes, my TV with Shield TV is limited the same. But since Netflix provides DV just with 24Hz it doesn't matter. Still, I want to get Ambilight working there as well, so I would really appreciate if you could test it in the coming days So far it seems to me that this could be a much cheaper way to get HDR/DV done in comparison to buying the HDFury Diva.
There will be still the problem with the settings on RaspPi/Hyperion for changing to HDR/DV, but this is a problem for later

Quote from Infest

Yes, my TV with Shield TV is limited the same. But since Netflix provides DV just with 24Hz it doesn't matter. Still, I want to get Ambilight working there as well, so I would really appreciate if you could test it in the coming days So far it seems to me that this could be a much cheaper way to get HDR/DV done in comparison to buying the HDFury Diva.
There will be still the problem with the settings on RaspPi/Hyperion for changing to HDR/DV, but this is a problem for later

Yes I know, but I just don't like switching refresh rates all the time, and prefer the smooth interface in 60Hz. I tried to do this automatically through an app but this particular use-case doesn't see to be supported. I still need to investigate switching to 30Hz automatically based on app usage.

I use the HyperHDR fork and Home Assistant (see signature) to automatically turn on tone-mapping when my receiver sees it's outputting HDR. Works perfectly!

I will do a small test to see if I can get DV content to work this weekend and will report back

@Infest Just tested this for you: I am able to trick the receiver easily into thinking the grabber supports Dolby Vision and it actually picks up a signal, just not a signal that is very useful. All colors are pink/purple/greenish. Not sure if there is a way to fix this with this particular grabber.

I guess you would need a grabber that specifically supports DV. Not sure if (cheap ones) exist.

Quote from pclin

Sorry that I asked in German.

Do you use USB2.0 or 3.0?
I suspect USB2.0 when I see your results.

Regards pclin

Very late response to this, but I found out this particular grabber is actually indeed a USB 2.0 device falsly marketed as USB 3.0 (with even the blue USB connector). So yeah, you where right. I can't be bothered too much with it, because it does fully work for all my needs.

Would this new splitter (with any hdmi grabber) be good solution for 4k HDR incl. CEC, ARC, HDCP 2.2? I like the full description from the manufacturer what exactely to expect from this splitter. The grabber must support full HD and HDR, I think.
https://feintech.eu/hdmi-split…fuer-av-receiver-soundbar

EDIT: I've ordered this splitter now together with this HDMI-USB garbber:
https://www.amazon.de/gp/product/B08BKNJP7N?tag=hyperioforum-21 . Will report how they works

Hello, excuse my english,

In my case I have 3 HDMI sources connected to a soundbar / AV receiver and from there the signal to my TV (FullHD, not 4K).

Currently, one of the soundbar inputs, is a Raspberry 3 with Hyperion. This has been working perfectly for years.

Now I want to use the LEDs + Hyperion with Netflix / Disney + (from another source: Xiaomi TV Box) and also for a Nintendo Switch (the third source).

I am thinking of putting an HDMI grabber between the soundbar output and the TV input. The maximum resolution will be FullHD. I have some doubts:

- Is there really a difference in using a grabber at 30 or 60Hz? (my LEDs are APA102 in case that influences)

- I preferred to use a loop grabber to save me inserting a spliter, but I have doubts about any of these it would do (there is a 30 and 60Hz version). I wanted it to support HDMI-CEC to control the soundbar from the TV remote like I do now:
https://es.aliexpress.com/item/4001294726740.html
https://es.aliexpress.com/item/32991659016.html

You see that I don´t have high aspirations in terms of quality and I don´t see a complicated installation either. I'm interested in not spending too much money. I think it is possible.

Thank you. Greetings.

Quote from Puck

@Infest Just tested this for you: I am able to trick the receiver easily into thinking the grabber supports Dolby Vision and it actually picks up a signal, just not a signal that is very useful. All colors are pink/purple/greenish. Not sure if there is a way to fix this with this particular grabber.

I guess you would need a grabber that specifically supports DV. Not sure if (cheap ones) exist.

Have you made any progress with this? I have the exact same issue, with Dolby Vision only. regular 4K HDR works perfectly.

Quote from wladi

Would this new splitter (with any hdmi grabber) be good solution for 4k HDR incl. CEC, ARC, HDCP 2.2? I like the full description from the manufacturer what exactely to expect from this splitter. The grabber must support full HD and HDR, I think.
https://feintech.eu/hdmi-split…fuer-av-receiver-soundbar

EDIT: I've ordered this splitter now together with this HDMI-USB garbber:
https://www.amazon.de/gp/product/B08BKNJP7N?tag=hyperioforum-21 . Will report how they works

I contacted Feintech about their splitters and they don't support Dolby Vision downscaling, is your Pi able to capture the image OK?

@puntoboy There is nothing to make progress on. The grabber I use simply can't handle Dolby Vision and I don't know of any HDMI grabbers that can.

Quote from Puck

@puntoboy There is nothing to make progress on. The grabber I use simply can't handle Dolby Vision and I don't know of any HDMI grabbers that can.

No problem Wouldn't it be better to downscale the signal first, then you can capture it at 1080p? I think the problem with that approach is that Dolby Vision down-scalers are expensive.

Quote from puntoboy

No problem Wouldn't it be better to downscale the signal first, then you can capture it at 1080p? I think the problem with that approach is that Dolby Vision down-scalers are expensive.

Downscaling and Dolby Vision are completely separate from each other. It doesn't matter al all. You simply need a device that either can process Dolby Vision or can convert it to an SDR signal somehow. That can be a splitter / scaler / grabber.

Quote from Puck

Downscaling and Dolby Vision are completely separate from each other. It doesn't matter al all. You simply need a device that either can process Dolby Vision or can convert it to an SDR signal somehow. That can be a splitter / scaler / grabber.

Downscale/convert, same thing really, but yes that's what I meant, either converting it to standard HDR or SDR.

Quote from puntoboy

I contacted Feintech about their splitters and they don't support Dolby Vision downscaling, is your Pi able to capture the image OK?

Only HDFury supports DV processing (I remember even only Low Latency DV)

Quote from wladi

Only HDFury supports DV processing (I remember even only Low Latency DV)

Yes it seems so. Expensive though.

I know this is old but I got an Onkyo TX-NR6100 Sub-out working with Hyperion NG while keeping 4K output to my TV.

Parts List from Amazon (CA):

https://www.amazon.ca/gp/product/B07TZRXKYG?tag=hyperioforum-21 https://www.amazon.ca/gp/product/B08F6ZD2RK?tag=hyperioforum-21 (ID 534d:2109 MacroSilicon USB Video)

https://www.amazon.ca/gp/product/B07TZRXKYG?tag=hyperioforum-21 (EZ-EX11HAS-PRO by easycoolav dot com)

I set the 5-scaler dip switch positions to all "On" (down position).

PIN 1: On = Test Mode (send HDCP is available)

PIN 2: On = Scale output to 1080p

PIN 3 - 5: On = EDID to AVR is 4K60Hz (444) 8-Ch HDR

AVR Sub Out -->EDID Scaler In --> EDID Scaler Out -> USB Capture Card --> RPi 3 w/Hyperion

I set the EDID setting to max 4K so the TV will be the lowest factor when the AVR decides which max settings to use.

No 4K will not work with the grabber on the sub out. You need a grabber with 3840x2160 60 Hz at the input. See HERE from € 9.60

regards pclin

Quote from arifroni

Solution (i am still working on this):
option1: put a HDfury DrHDMI right after out2 of AVR. you can set a profile in this device and the Sources will see 4K HDR and no HDCP problem. after DrHDMI you have HDR signal, which needs to be converted to SDR...for this you can use HDfury X4.

option2: HDFury DIVA....this device takes a HDMI source (actually it has 4 HDMI input), and spits 3 signal...4K HDR (goes to TV), 1080p SDR (goes to RPi), 1080p with full audio (can be hooked to a AVR, but you can ignore if you use this after AVR)

unfortunately whole setup cost a lot

Can't this be solved by now with this?

4K 120Hz HDMI 2.1 Splitter 8K 60Hz 1 in2 out VRR ALLM HDCP2.3 HDR10 8KUHD Dolby Vision Atmos Scaler 4K EDID 1080P Dual Monitors HDMI 2.1 Splitter 1X2

Mode: EZ-SP12H21 4K 120Hz HDMI 2.1 Splitter 8K 60Hz 1 in2 out VRR ALLM HDCP2.3 Compatible with NVIDIA, AMD, PS5, Xbox

www.easycoolav.com

I'm probably a bit late but I am currently at setting up my ambilight for my TV with Denon AVR and had the same issue that my AVR always prefers the lower monitor capabilities, so no Dolby Vision or HDR as soon as I add my Capture Card to the second HDMI output. So I need a way to copy the EDID of my TV and the solution here was an HDMI EDID emulator.

But actually there is no need for it because I just discovered a little secret menu in my AVR settings!

I have an AVR-X2800H and when I navigate to it's web page at its local IP address where you can configure all the standard settings, I noticed a small little link at the bottom right that says "CI Menu". You have to confirm that you want to proceed and then there's a menu "HDMI Diagnostics". In this menu, there's a sub-menu called "Limit Mode".

There you can choose an "EDID Copy/Preset" which you can change from "Default" to "Copy M1" for each input.

I did this and can confirm, this is exactly what it does, it ignores the lower specs of my capture card and forces to use the EDID of my TV. This setting seems to be persistent across reboots too!

Now I just need a little better capture card because mine can't handle 4K 60FPS (sometimes it does though, it's really weird) and hopefully I can get HDR to work with HyperHDR, need to figure that out. But at least I can avoid this extra hardware