"The method Dolby Vision (DV) uses to transport the signal over HDMI is referred to as “RGB Tunneling”. The 12-bit ICtCp DV signal + Metadata is encapsulated inside the regular RGB 8-bit video signal. The DV “tunneling” carries 12-bit YCbCr 4:2:2 data in an RGB 4:4:4 8-bit transport. This is possible because both signal formats have the same 8.9 Gbps data rate requirements.
The DV metadata is encoded into the least significant bits of the chroma channels. Upon the HDMI EDID exchange (handshake), the sink (AVR, Display, or HDMI switch) signals the source that it supports Dolby Vision “tunneling”. The source then signals the sink that it’s transmitting Dolby Vision through an AVI Infoframe, which therefore triggers the Dolby Vision mode in the sink. The display DV engine extracts the components and produces a tone mapped image."
In DV on my LG C9 Oled
8bit RGB ->black screen, Dolby Vision mark popups on the screen, audio OK
8bit 4:4:4 → glitches on screen Hdmi signal lost randomly,
10bit and 12bit RGB → black screen, Dolby Vision mark popups on the screen, audio OK
10bit and 12 bit 4:4:4 → ok
Hey …I have problems to install IPTV simple in the latest nightly 21… The dependence is rtmp inputstream in Version 21.xxx … But this version don’t exist? Only 20.xxx ? So how can I solve this issue…?
Hello, yesterday I had flashed the image of VPeter “CoreELEC-Amlogic-ne.aarch64-21.0-Omega_devel_vpeter-Generic-Homatics-YT8531-v2.img.gz” (because of the LAN problem) on my new “Dune HD Homatics Box R 4K Plus” and still the system stops after a longer idle time. I then have to reboot.
Could someone or VPeter look at my box via remote access? I would be very grateful!
(I have startet a log file…because i dont know the reason for stopping the system)
where i can find 21-omega nightlies from CE (webinterface running system) … can i enter a link there under update channel (manual update)? currently i only find kodi 20 and kodi 19 channels
thx Portisch…little info: i will put the file “CoreELEC-Amlogic-ne.aarch64-21.0-Omega_nightly_20230417-Generic.img.gz” in the update folder … but
I installed this image from Vpeters yesterday…is it compatible with today’s image?
“CoreELEC-Amlogic-ne.aarch64-21.0-Omega_devel_vpeter-Generic-Homatics-YT8531-v2.img.gz”
But it’s not possible to manually trigger an update from a nightly? I used to have that with LE and there was a list of daily updates there…
It appears a massage that arm64 not native supported. Use 32 userspace … Or something like that.
Have tried to extract it with input stream helper , but it’s not working.
Sorry did you follow the link to the post? There’s an updated version of inpustream helper that the devs launched for test. They didn’t release it yet officially.
i have a ugoos am6b to soundbar to tv, use ng (no DV)
When I open tv(soundbar) 1st , am6b 2nd, playback some hdr there is no signal, when stop the signal back.
But when I open am6b 1st , tv(soundbar) 2nd,all works well, maybe you can try
Btw, in settings, force coulor scamping in 4:2:2 in wiki may fix it, but I don’t know how it works with DV
