46 replies to this topic

[Marko1305]

Hi, I found one problem with deinterlacing on Zgemma H9S and I suspect it is the same on the other Zgemmas with the same chipset.
Adaptive Deinterlacing works on channels that are encoded in MBAFF (type of interlaced encoding) and the box shows "1080p25" on those channels. If you watch sports on those channels it will automatically switch to video deinterlacing 50fps and if you watch movies/shows it will stop deinterlacing and leave the content in 25fps keeping the full resolution.
- So here is the problem if the channels are encoded as basic interlaced which the box recognizes as "1080i25" then the box is locked to 50fps video deinterlacing. Resulting in slight artifacts and worse picture on 25fps content such as Movies/TV Shows which are not meant to be deinterlaced.

Here are my 2 possible suggestions on how it could be fixed:

1. Somehow force the box to recognize every interlaced channel as 1080p25 ( I am aware that this might not be possible or optimal)

2. Force the box to recognize every channel as 1080i25 so the user can set the output signal to 1080i and leave the deinterlacing to the TV.

-You may ask why I am not able to do the 2nd solution right now? The problem is when channels are recognized as 1080p25 and the output signal is set to 1080i, the TV is always locked to 50fps video deinterlacing which is not the case on 1080i25 which works correctly and the tv is able to switch between film and video deinterlacing.
Also keeping the output signal for 1080p25 to 1080p and 1080i25 to 1080i results in annoying consistent resolution switches because sometimes even MBAFF is recognized as interlaced.

Sorry for such a long message and I really hope that this could be fixed somehow. Thanks in advance.

What exactly should I add to the autoresolution plugin, any ideas?

To summarize the problem: On 1080i25 channels, motion adaptive deinterlacing doesn't work it is always locked to 50fps video deinterlacing which makes picture quality worse on film, documentary and tv show channels since those shouldn't be deinterlaced and stay at 25fps.

On the other side, motion adaptive deinterlacing works (automatically switches between film and video deinterlacing) on MBAFF encoded channels which are recognized as 1080p25

[Dimitrij]

To be honest, I don’t really understand the task.

Maybe...

 

Add self.extra_mode1080i25

Need test in develop image or 9.0

[Dimitrij]

Marko1305

 

"Enable 1080p25 Mode" set 1080p25

"Force set 1080p25 for 1080i25 content" set yes

Attached Files

•  plugin.zip   8.18KB   1 downloads

[Marko1305]

I am using OpenPli 8.3 is it compatible with python 2.7? I can't update to 9.0 because of the one stalker plugin.

[Marko1305]

Marko1305

 

"Enable 1080p25 Mode" set 1080p25

"Force set 1080p25 for 1080i25 content" set yes

 

I updated the plugin and don't see that new option "Force set 1080p25 for 1080i25 content"you mentioned.

[Marko1305]

Sorry I see now. But I don't think you understood me. I want to use 1080p50 or multi/auto output signal for 1080p25 content. 

Edited by Marko1305, 8 March 2024 - 21:14.

[Marko1305]

This makes sport channels which are in 50fps unwatchable. Is it possible to make the receiver think that 1080i25 channel is 1080p25 or that 1080p25 channel is 1080i25?

[Dimitrij]

This makes sport channels which are in 50fps unwatchable. Is it possible to make the receiver think that 1080i25 channel is 1080p25 or that 1080p25 channel is 1080i25?

That's exactly what I did

 

make the receiver think that 1080i25 channel is 1080p25

				if config.plugins.autoresolution.replace_1080i25_1080p25.value and (height >= 900 or width >= 1600) and frate == '25' and orig_prog != 'p': # 1080 25/1080i25 --> 1080p25
					new_mode = 'p1080_25'

Where:

config.plugins.autoresolution.replace_1080i25_1080p25.value --> "Force set 1080p25 for 1080i25 content" set yes

(height >= 900 or width >= 1600 )--> 1080

fps --> frate == '25'

Deinterlacer--> orig_prog != 'p'( 'i' or empty ' ')

So:

Set -->1080p25

 

 

 

1) This is 1080i25 stream service?

2)Give me a piece of recording of this channel or a link/reference (in a personal message).

Edited by Dimitrij, 9 March 2024 - 08:51.

[Marko1305]

But the problem is, you forced me to choose 1080p25 as output signal resolution. I don't want the TV to use 1080p25 but 1080p50.

Edited by Marko1305, 9 March 2024 - 09:59.

[Dimitrij]

New version for test

Attached Files

•  plugin.zip   8.24KB   1 downloads

[Marko1305]

New version for test

With the new version when I am on 1080i25 channels the receiver switches to 1080p25 output signal which is not good. I don't want TV to use 1080p25. I want to force the receiver to recognize every 1080i25 channel as 1080p25 ( second infobar still shows 1080i25 not 1080p25 like on Mbaff encoded channels). I want to make the receiver act the same when it is on mbaff encoded channel with interleaved fields. Changes you made just force the receiver to switch output resolution to 1080p25 it still recognizes those channels as 1080i25.

[Dimitrij]

 

Changes you made just force the receiver to switch output resolution to 1080p25 it still recognizes those channels as 1080i25.

Of course, first we read the real value, in our case 1080i25.

Then, first we switch to the desired value, in our case 1080p25.

Now the video resolution 1080p25.

Watch the information on TV, not on the receiver.

[Dimitrij]

New test

1080i25 same behavior as for 1080p25
 

Attached Files

•  plugin.zip   8.26KB   1 downloads

Edited by Dimitrij, 9 March 2024 - 15:40.

[Marko1305]

Changes you made just force the receiver to switch output resolution to 1080p25 it still recognizes those channels as 1080i25.

Of course, first we read the real value, in our case 1080i25.
Then, first we switch to the desired value, in our case 1080p25.
Now the video resolution 1080p25.
Watch the information on TV, not on the receiver.

I am watching both, there are 2 problems:
1. Tv is showing 1080 25p on 1080i25 channels instead of 1080 50p
2. Receiver is still showing 1080i25 on those channels.

[Marko1305]

New test
1080i25 same behavior as for 1080p25

I will test a new version in the evening

[Marko1305]

Changes you made just force the receiver to switch output resolution to 1080p25 it still recognizes those channels as 1080i25.

Of course, first we read the real value, in our case 1080i25.
Then, first we switch to the desired value, in our case 1080p25.
Now the video resolution 1080p25.
Watch the information on TV, not on the receiver.

You don't understand what I want to achieve. The real value should be the main focus. I want to force real value to the 1080p25 or 1080i25 for every channel, even though it is not that in reality. That's the only way to fix the deinterlacing problem. Switching output resolution to 1080 25p for 1080i25 channels is not fixing anything. Sport channels should be viewed in 50fps not 25fps.

[Dimitrij]

 

Switching output resolution to 1080 25p for 1080i25 channels is not fixing anything. Sport channels should be viewed in 50fps not 25fps.

https://forums.openp...dpost&p=1610621

Check this out, it looks like it's what you need

 

 

 

[Marko1305]

Switching output resolution to 1080 25p for 1080i25 channels is not fixing anything. Sport channels should be viewed in 50fps not 25fps.

https://forums.openp...dpost&p=1610621
Check this out, it looks like it's what you need

I tested it and now at least it doesn't switch to 25p but still doesn't fix the deinterlacing problem.

[Dimitrij]

Marko1305

 

I tested it and now at least it doesn't switch to 25p but still doesn't fix the deinterlacing problem

Can you be more specific about what exactly is wrong?

 

Last change logic;

When original video 1080i25 /1080p25 --> set value "Enable 1080p25 Mode"(if "Force set 1080p25 for 1080i25 content" = yes)

[Marko1305]

The problem is behavior on 1080i25 channels it is always deinterlacing those channels even when it's unnecessary ( like HBO and Sky movies channels because content on those channels is in 25fps and shouldn't be deinterlaced). On those channels it should behave like on MBAFF interleaved channels that the receiver recognizes as 1080p25. I can send you a few test samples in inbox so you can see what the problem is

Edited by Marko1305, 10 March 2024 - 13:18.