CyberLink Community Forum
where the experts meet
| Advanced Search >
10bit videos
Reply to this topic
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
Hello

Can anyone play this file in PDVD?

https://1drv.ms/u/s!AtKqx5PpFumGg54a1o5CL19wdveKgw?e=Kdx1fj

Its a gradient, apper half is 10bit, bottom is 8bit. If everything is working fine, then upper half should be smooth and bottom has steps.
In my system PDVD cant output 10bit colour. Both upper and bottom halves has steps. They are identical.

MPC-HC on my PC plays 10bit videos with no problems (upper half is smooth).
Reply
QC2.0 [Avatar]
Contributor Private Message Joined: Apr 27, 2016 04:02 Messages: 359 Offline
[Post New]
Turn on the HDR option on Windows to check it out, and don't forget that all of TrueTheater video enhancements should be OFF in powerdvd.
Reply
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
Quote Turn on the HDR option on Windows to check it out, .


Can't do that. My videocard does not support HDR.
Reply
QC2.0 [Avatar]
Contributor Private Message Joined: Apr 27, 2016 04:02 Messages: 359 Offline
[Post New]
My playback result is that both upper half and bottom half have steps in powerdvd.
And, the steps at 8-bit bottom half is more noticeable.

The result is the same in powerdvd, potplayer and VLC.
No issues.

This message was edited 1 time. Last update was at Aug 29. 2019 03:20

Reply
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
Quote My playback result is that both upper half and bottom half have steps in powerdvd.
And, the steps at 8-bit bottom half is more noticeable.

The result is the same in powerdvd, potplayer and VLC.
No issues.


This means that your system cannot output 10bit colour right. 10bit gradient should not have steps. This is one of the reason why 10bit was invented.
On my system i see 1 or 2 bandings, but no steps (MPC HC).
Here is another test pattern
https://1drv.ms/u/s!AtKqx5PpFumGgvcICdHmAlfkT3_3eg?e=VTvBbG

I'll contact Cyberlink support and report back here later.
Reply
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
CQ2.0, what is diagonal of your TV? Maybe you see steps because of huge display. There is 256 steps in 8bit gradient and 1024 in 10bit.
Reply
QC2.0 [Avatar]
Contributor Private Message Joined: Apr 27, 2016 04:02 Messages: 359 Offline
[Post New]
Technically, there are always steps in detail no matter it is a 10 bit video or 8 bit video, but it is easier to catch the steps in a video that is produced in 8 bit color depth.

55" 4K HDR TV shows it fine in powerdvd as other players:
The steps at upper part is less noticeable, and more noticeable at bottom part.

But, personally, I don't think there are any values to test this specific clip that oddly encoded 8 bit and 10 bit content into single one.
All the videos are already compressed and post-processing during the production phase, the file here is not exactly same as what the original image looks like at pixel level.

We use powerdvd to watch movies but not for scentific color research or testing purpose.
GPU driver affect the final color rendering results between different software player combinations as well.
Reply
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
Quote
But, personally, I don't think there are any values to test this specific clip that oddly encoded 8 bit and 10 bit content into single one.

The second test pattern made by Spears&Munsil. I think this guys know what they are doing
http://spearsandmunsil.com/about-us/
Reply
IceCool [Avatar]
Newbie Private Message Joined: Jul 23, 2012 16:37 Messages: 12 Offline
[Post New]
Cybrlink support answered that 10bit color supported only with hardware decoding and HDR. With software decoding there will be only 8bit.
Reply
Reply to this topic
Powered by JForum 2.1.8 © JForum Team