24fps playback

[tke743]

Ok, I'm getting intermittent success with this (some stutter from the picture at times) but can this be enabled for the stand alone on the HD200. We know that it can output 1080p24, can we get this enabled in firmware, for 24fps media. Please Sage.

[DMT]

My 40" Samsung LCD is 60hz. It will accept a 1080p 24hz signal - I tried it by adding the extender_resolution_extra line in my properties file.

I switched back and forth from 60hz to 24hz during BD playback. I honestly couldn't tell the difference but maybe I didn't have the right scene/title to properly compare.

I think I understand there should be a difference on a 120hz set - 24fps divides evenly into 120 etc. but should there be a difference between a 1080p 60hz and 24hz signal on a 60hz only TV?

Up until now my HD200 has always stayed at 1080p 60hz and everything SD/HD/BD has looks pretty good. My TV is uncalibrated (go to get to that).

Appreciate any clarification. Thanks.

[stanger89]

Your TV has to "properly" support it for it to make a difference. On a 60Hz display, unless there's frame interpolation (Samsung calls it AMP) going on, there won't be a difference.

For 1080p24 to matter the display has to be able to display it at an even multiple, ie 48, 72, 96, or 120Hz.

[Fuzzy]

this (and really ONLY this) is the advantage of a 120Hz display.. unfortunately, it is not marketed that way, so owners of 120Hz sets don't even know what to look for to GET that optimal 24Hz film viewing.

[reggie14]

What's currently the best way to add 1080p/24 support to the HD200? Right now I'm running my HD200 with native resolution switching and SageMC. From what I understand, the first thing I do is add

extender_resolution_extra_modes=1920x1080p@24|standard\=HDMI_1080p24

to my HD200's properties file. That sounds easy enough.

The thing I'm worried about it activating it. I'd really, really like a way to have it automatically switch to 24FPS output when I'm playing back a blu-ray rip. But, if I can't do it automatically, what's the next best thing? Will I run into problems trying to switch to this manually if I keep using native resolution switching? Is the best option for seeing what the current resolution output still the addon by razrsharpe?

[stanger89]

"extra" resolutions are automatically enabled in my experience (only way to disable them is to remove them).

To have it automatically switch just make sure that 1080p60 is not selected. The extender will match the 1080p BD rip to the enabled 1080p resolutions, which with 1080p60 disabled, is 1080p24.

[razrsharpe]

There is also this addon that i wrote that links the video out button to a popup where you can select what output resolution (rather then cycling through them). It will also tell you what resolution the media is and what the current output resolution.

I have plans to merge the stvi that you linked with the one above and also add more functionality to the native output resolution switching to allow automatic switching on ranges of resolutions and framerates....

[reggie14]

So, I finally got around to trying to get 1080p24 working on my HD200. And, to put it simply, it was a disaster. I started by adding the 1080p24 custom resolution to my HD200's properties folder, then when I started up my HD200 is enabled all the resolutions except for 1080p. 1080i was setup as the starting resolution, and I had native resolution switching on.

The first thing I tried was a blu-ray rip. It seemed to work fine initially- the TV detected a 1080p24 signal, but then a little later the video got really jerky. It kind of looked like it was only displaying a few frames a second. When I stopped the video I noticed my TV was still reporting a 1080p24 signal, rather than the 1080i that it should have dropped to. (right? It my experience with native resolution switching you always drop to the default resolution when something isn't playing or paused). I could see the jerkiness was still present in the Sage interface.

I rebooted and this time tried to play a 480i recording. That didn't work at all. My TV couldn't find a signal. Maybe that's normal- I've heard some devices won't output a 480i signal over HDMI, and I've heard some TV's won't accept it. But, the same thing seemed to happen with a 480p DVD rip. The TV just kept searching for a signal. I probably gave it about 10 seconds before I gave up, which (presumably) should have been enough time.

FWIW, I have a Samsung a630 TV. Has anyone ran into similar problems?

[impro]

24p has been nothing but pain. I do not think your tv supports 24p Why enable it at all.
I am using Asus O!Play for 24p playback. Gave up on using sage for 24p playback

[reggie14]

Originally Posted by impro

I do not think your tv supports 24p Why enable it at all.

It should support it. It's a 120Hz TV, and people over the the AVS Forum have gotten 1080p24 playback working with other devices.

[impro]

Originally Posted by reggie14

It should support it. It's a 120Hz TV, and people over the the AVS Forum have gotten 1080p24 playback working with other devices.

Yes other devices work

[tke743]

OK, I gave up on this a while ago due the jerky playback. I have decided to pick this back up. I have a DVDO Edge and it is reporting that the reason that I get jerky playback is that the HD200 is outputting 1080p/24 at exactly 24fps. In reality it should be 23.94fps. Will the extender_resolution_extra_modes allow a resolution of extender_resolution_extra_modes=1920x1080p@23.94|standard=HDMI_1080p23.94? Or are decimal places not allowed?

If allowed then this might address the issue.

Also does this mean that the HD200 is also trying to output 480i/60 not 480i/59.94. That could explain some of the weird 480i through HDMI issues.

[stanger89]

I'm using this:

extender_resolution_extra_modes=720x480i|Standard\=HDMI_480i59;1920x1080p@24|Standard\=1080p23

And don't have any trouble with 480i or 1080p24 (including blu-ray) on my Planar 8150.

[Suntan]

Stanger, any particular reason for using 59 and 23 instead of 60 and 24? Or are you just more of a truncating man than a rounding man?

-Suntan

[razrsharpe]

Originally Posted by Suntan

Stanger, any particular reason for using 59 and 23 instead of 60 and 24? Or are you just more of a truncating man than a rounding man?

-Suntan

I'm pretty sure if you read the docs for the custom resolution property when you use 23 and 59 it is actually sending 23.937 and 59.54 (or whatever the correct framerate should be... Ie not rounded to 24 and 60)

[stanger89]

At least that was my assumption when I picked those. I think over the course of time I've actually had custom resolutions of both (23/24 and 59/60) and can't say I've ever noticed a difference.

[Suntan]

Originally Posted by stanger89

I'm using this:

extender_resolution_extra_modes=720x480i|Standard\=HDMI_480i59;1920x1080p@24|Standard\=1080p23

And don't have any trouble with 480i or 1080p24 (including blu-ray) on my Planar 8150.

One more question. What’s with the backslashes after “standard?” I don’t see any of those in the samples on Opus’s FAQ post.

I’m having a time of it getting 24p enabled on my PJ. It shows up as a selectable option on the extender, but the PJ just goes blank as though there is no signal.

-Suntan

[stanger89]

I think they're to escape the '=' sign. I've always had them though, since I first bugged Sage about custom resolutions.

[Suntan]

Originally Posted by Suntan

One more question. What’s with the backslashes after “standard?” I don’t see any of those in the samples on Opus’s FAQ post.

I’m having a time of it getting 24p enabled on my PJ. It shows up as a selectable option on the extender, but the PJ just goes blank as though there is no signal.

-Suntan

Just FYI for anyone else that may come along, I finally got around to looking into this issue again and was able to get 24p enabled on my PJ by removing the backslash in question.

-Suntan