Posts by JohnWayne111

Quote from HiassofT

JohnWayne111 just talked to RPi devs but you might not like the answer:

RPi4 doesn't have hardware support for HDR-to-SDR tonemapping, it might be possible to tweak things a bit but the result will always be off - either too dark or too light.

Simple solution: don't use HDR encodes if you don't have a HDR display.

You could also try to re-encode the HDR files on your PC, ffmpeg (and probably other encoders) should support that with tonemap filters (never used that myself though).

so long,

Hias

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Hi HiassofT

ok, what a pity!

But, and really NO JOKE, my neighbour bought a 65 inch Sony Bravia and dont need his 55 inch model from 2017 (Sony Bravia).

This TV has 4k and HDR Support!

And the best - i get it today for nothing! LOOOOL

Quote from HiassofT

JohnWayne111 HDR to SDR tone-mapping is a completely different beast, purpose of these testbuilds is to check if true HDR output works fine.

so long,

Hias

Thanks for your reply HiassofT

I will wait

Hi HiassofT

is there an option watching 4k HDR Files with an full HD TV with non-HDR?

Will there be with this new release a correct color representation?

Is there an option to get the correct color represntation with a Full HD Tv which has no HDR ?

Or is this not implemented yet? (just a question)

RPi4 testbuild with HDR support

I test this build with my Full HD TV (Non HDR) cause i want to know if HDR files has correct color representation.

Cant get a feedback, still hope in future it is possible

THANKS ALL for your good work!

Quote from chewitt

Let's see after the team call

Hi chewitt

any news about this?

"Just" nightlies or offical alphas/beta LE 10 releases ?

chewitt

ok, thanks again

So the current plan is only nightlies and a final release of LE 10 ?

chewitt

Tanks, but im confused. Reason:

Current plan is to release official Alphas for RPi4 along with the other Alpha builds.

RPi2/3 releases will probably follow later as there's a major issue in the video driver (screen going blank). Once that's fixed RPi2 alpha builds will follow.

so long,

Hias

Quote from chewitt

HEVC has been working for months (H264 is/was the hold-up). 4K is working now (not 4K60, but that's will be along eventually). HDR is complicated but will come. Upstreaming will take time.. but getting it all working comes first. We aren't going to do a formal Pi release for LE10 out of an abundance of caution (we have hundreds of thousands of Pi users) but things are moving along nicely..

HI chewitt

i guess its time for a offical Alpha LE 10 version

Will LE going on a another release strategy like only nightlies and then final version?

Or will there be "official" Alphas and beta releases?

Quote from Klojum

Well, write speeds sure are better on a SSD than on a SDcard. And they last longer, I've binned a couple of SDcards in the last 2 years.

I'm using a Startech.com USB3/SATA cable adapter and an almost 12-yr old prehistoric 60GB OCZ Vertex 1 (sata II) SSD.

60 GB for LE !?

16 GB are enough? Why so much?

Hi Klojum

ok, i switch from SD Card to USB 3.0 Stick with latest Pi4 Firmware.

That was worth!

Can i expect more speed from a USB 3.0 Stick to a SSD ?

It this worth Libreeelc on a SSD ? Which one do you use ?

Ok, thanks four quick response.

I can wait. I have a full HD TV and im more interested if there an general technical way on Pi 4. (HDR to SDR)

chewitt

will there be a (technical way) "HDR to SDR" to play HDR files on a 1080p TV ?

I guess LE10 (first version) will coming when matrix has arrived beta status?

Yes, this version is stable.