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Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 5:32 pm
by bobbymkV
SamuriHL wrote:I just watched Skyfall last night on the SHIELD and I concur with the red push everywhere. The SHIELD just doesn't want to play nice.

Do people still have faith that Nvidia will get this figured out eventually? I really want to sell off my OPPO and combine my libraries....
Sent from my Pixel 3 XL using Tapatalk
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 5:35 pm
by SamuriHL
Truly unknown. We're not sure exactly what the issue is that's causing it. It's very possible the SHIELD just doesn't support decoding the parts of the DV spec that UHD is using. In which case, nope, it'll never get fixed. It's designed to play streaming DV content which is encoded differently than UHD DV content. All we can do is keep reporting it to them until they tell us to go away.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 6:12 pm
by PlatypusW
SamuriHL wrote: Sun Oct 11, 2020 5:35 pm
Truly unknown. We're not sure exactly what the issue is that's causing it. It's very possible the SHIELD just doesn't support decoding the parts of the DV spec that UHD is using. In which case, nope, it'll never get fixed. It's designed to play streaming DV content which is encoded differently than UHD DV content. All we can do is keep reporting it to them until they tell us to go away.
Would comparing UHD DV to a streamed DV counter part help? I mean if the streamed DV counter part looks correct then I agree we have no chance of this getting fixed.
Or is it not that simple and comparing some streamed content to say the X700 not really help? That said, I’m struggling to think of a title we could even use too

Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 6:19 pm
by RESET_9999
PlatypusW wrote: Sun Oct 11, 2020 6:12 pm
Would comparing UHD DV to a streamed DV counter part help? I mean if the streamed DV counter part looks correct then I agree we have no chance of this getting fixed.
Or is it not that simple and comparing some streamed content to say the X700 not really help? That said, I’m struggling to think of a title we could even use too
I already did that comparison. the streamed content doesn't have the red push issue.
https://slow.pics/c/TYFydU4s
But the fact that the Firestick TV is able to play UHD-BD rip properly is encouraging. I believe Nvidia can fix that issue.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 6:23 pm
by SamuriHL
PlatypusW wrote: Sun Oct 11, 2020 6:12 pm
SamuriHL wrote: Sun Oct 11, 2020 5:35 pm
Truly unknown. We're not sure exactly what the issue is that's causing it. It's very possible the SHIELD just doesn't support decoding the parts of the DV spec that UHD is using. In which case, nope, it'll never get fixed. It's designed to play streaming DV content which is encoded differently than UHD DV content. All we can do is keep reporting it to them until they tell us to go away.
Would comparing UHD DV to a streamed DV counter part help? I mean if the streamed DV counter part looks correct then I agree we have no chance of this getting fixed.
Or is it not that simple and comparing some streamed content to say the X700 not really help? That said, I’m struggling to think of a title we could even use too
RESET_9999 did a lot of these kinds of comparisons and the issue is absolutely there on UHD sources but not for streaming. I can confirm the same with my own equipment. My x700 is in the other room on my 3D plasma so I've not done any comparisons with it, but, I do have my UB820 to compare to and there is a difference. The SHIELD just can't play these UHD sources without red push issues.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 6:45 pm
by SamuriHL
I've not played on the firestick yet but that requires FEL->MEL conversion. Once that process gets nailed down by you adventurous people, maybe Mike can add an option to do so in MakeMKV to make it seamless.

I should try a couple of my MEL movies with plex on the firestick and see how that goes. That'd be nice.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:01 pm
by shawnc22
Is the firestick only capable of LLDV? Is that why it was used or was it a TV limitation? It's really too bad that the firestick can't handle lossless audio. That's more of a deal breaker for me than the seemingly better DV implementation.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:15 pm
by SamuriHL
shawnc22 wrote: Sun Oct 11, 2020 7:01 pm
Is the firestick only capable of LLDV? Is that why it was used or was it a TV limitation? It's really too bad that the firestick can't handle lossless audio. That's more of a deal breaker for me than the seemingly better DV implementation.
Wait it can't do lossless audio?? Yea, ok, that's a deal breaker for me as well. Damn. (You can tell how much I've used my firestick LOL)
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:20 pm
by RESET_9999
shawnc22 wrote: Sun Oct 11, 2020 7:01 pm
Is the firestick only capable of LLDV? Is that why it was used or was it a TV limitation? It's really too bad that the firestick can't handle lossless audio. That's more of a deal breaker for me than the seemingly better DV implementation.
@manix could probably explain it better but i think it's because the capture card need to receive a decoded 422 signal in order to properly capture it. This is also how the vertex 2 allows LLDV tonemapping to any HDR10 display.
i dont know much about the process, i only did the screenshot comparisons with the sample he provided.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:31 pm
by ragico
SamuriHL wrote: Sun Oct 11, 2020 6:45 pm
I've not played on the firestick yet but that requires FEL->MEL conversion. Once that process gets nailed down by you adventurous people, maybe Mike can add an option to do so in MakeMKV to make it seamless.

I should try a couple of my MEL movies with plex on the firestick and see how that goes. That'd be nice.
I compared the firestick vs shield on Panasonic GZ2000 oled and could not see any red push or colour saturation.
Firestick at moment is better than shield IMHO.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:34 pm
by RESET_9999
SamuriHL wrote: Sun Oct 11, 2020 7:15 pm
shawnc22 wrote: Sun Oct 11, 2020 7:01 pm
It's really too bad that the firestick can't handle lossless audio. That's more of a deal breaker for me than the seemingly better DV implementation.
Wait it can't do lossless audio?? Yea, ok, that's a deal breaker for me as well. Damn. (You can tell how much I've used my firestick LOL)
also no 24/23hz support on plex i think ?
so it's either:
1- shield dv issues + lossless audio + plex library
2- Firestick proper dv + no lossless audio + plex library
3- x700 / oppo proper dv + lossless audio + no plex library
one day, hopefully, we can get a device that can do it all.. i bet it will end up being an HTPC
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:51 pm
by ragico
RESET_9999 wrote: Sun Oct 11, 2020 7:34 pm
also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 7:57 pm
by quietvoid
ragico wrote: Sun Oct 11, 2020 7:51 pm
RESET_9999 wrote: Sun Oct 11, 2020 7:34 pm
also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
Currently you have to disable the firestick's own refresh rate matching and enable Plex's to get DoVi from Plex. Otherwise it's not consistent.
Haven't verified but it seems to switch the display just fine.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 8:00 pm
by ragico
quietvoid wrote: Sun Oct 11, 2020 7:57 pm
ragico wrote: Sun Oct 11, 2020 7:51 pm
RESET_9999 wrote: Sun Oct 11, 2020 7:34 pm
also no 24/23hz support on plex i think ?
Firestick supports 24/23hz on plex.
Currently you have to disable the firestick's own refresh rate matching and enable Plex's to get DoVi from Plex. Otherwise it's not consistent.
Haven't verified but it seems to switch the display just fine.
I have not disabled firestick own refresh rate, It is enabled. Never a problem.
Re: Dolby Vision now possible through MP4 Mux.
Posted: Sun Oct 11, 2020 8:17 pm
by chros
A note about the phrase "LLDV", since you use it recently:
- this is a mode of the display device and not the player, nor the file!
- although the player triggers it based on its setting (e.g. Oppo)
- it has nothing to do with the content itself (can be MEL/FEL DV)
In LLDV mode of a display device it disables its certain image processings (that are enabled otherwise) to reduce latency between itself and the "player" device. This can result in banding/posterization, especially with low bitrate DV content, such as streaming profile 5 MEL DV.
Hence it's not desirable at all to use LLDV mode when watching DV video content.
For example, Sony Oleds don't have full DV support, only LLDV. Even Vincent recently stated the above issues in his late Sony reviews.
Other Oleds that have full DV implementation (LG, Panasonic, Philips) can be set into LLDV mode, e.g. by enabling
player-led DV processing on Oppo.