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Old 6th October 2017, 12:52   #46221  |  Link
ryrynz
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Been noticing a few instances recently with seeking where the picture freezes but audio continues. Seeking sometimes fixes it. Was using NGU Sharp and d3d11. Haven't done any testing. Anyone else had this recently?
Only appear to have this happening when I pause.

Last edited by ryrynz; 7th October 2017 at 09:36.
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Old 6th October 2017, 13:03   #46222  |  Link
Tobiwan
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Been noticing a few instances recently with seeking where the picture freezes but audio continues. Seeking sometimes fixes it. Was using NGU Sharp and d3d11. Haven't done any testing. Anyone else had this recently?
Audio continues and picture freezes yes, but I only have the problem on low quality videos. I test it with NGU AA, Sharp, xbr, and CIVID, D3D11 but there was no different.

I only found that decoder queue overflow at seeking.
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Old 6th October 2017, 13:59   #46223  |  Link
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Hi!

Can anyone tell me how do I use the madVR internal decoders? They don't appear as a system codec so I can't set them in media software to be used. So how?

The DXVA decoders are surely there because apparently they somehow got enabled in strange circumstances:


Even deinterlacing started working. So how do I the built in decoder normally?

Last edited by mzso; 6th October 2017 at 14:05.
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Old 6th October 2017, 14:37   #46224  |  Link
nevcairiel
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madVRs built-in decoders have been removed a long time ago, in v0.87.15 to be precise. If the OSD says DXVA, that means the decoder is delivering frames in DXVA2-Native mode, but not that madVR is doing the decoding.
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Old 6th October 2017, 15:04   #46225  |  Link
strumf666
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I'm testing them but I do not see any difference between the various scalers, maybe I can not figure out what the differences are and with what images i have to do the tests?
Official comparison by madshi available here:
http://www.madvr.com/

Unless you have a very bad eye sight (or something terribly wrong with your display), the difference in sharpness should be very apparent when watching a movie. You can also make a screenshot of the same frame using different scalers, for comparison, but if you do not see the difference during playback it's a waste of time.
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Old 6th October 2017, 15:05   #46226  |  Link
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Quick question.
So what's the better/right option here for HDR movies?

madVR: 0-255 nvidia: 0-255 TV: 0-255
madVR: 0-255 nvidia:16-235 TV: 16-235

in some movies with everything set to full-rgb the blacks look washed out.
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Old 6th October 2017, 15:14   #46227  |  Link
mzso
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Originally Posted by nevcairiel View Post
madVRs built-in decoders have been removed a long time ago, in v0.87.15 to be precise. If the OSD says DXVA, that means the decoder is delivering frames in DXVA2-Native mode, but not that madVR is doing the decoding.

Well, I saw that, but it only says "removed software decoders" and not DXVA decoders. So that's confusing.

Also, I tried removing the files and it works the same way. Which is even weirder. Maybe LAV wasn't working at all this way?

The icon certainly didn't appear and the settings certainly don't reflect using DXVA. (I don't see LAVVideo.ax in the threads either.)

Where are the settings for LAV Video normally stored?
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Old 6th October 2017, 15:15   #46228  |  Link
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Well, I saw that, but it only says "removed software decoders" and not DXVA decoders. So that's confusing.
There never was anything but the software decoders in the first place.
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Old 6th October 2017, 15:39   #46229  |  Link
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@mzso I reinstalled ProgDVB and tested again. With the default config you're indeed right that deinterlacing gets turned off after the first channel change and there is no way to get it enabled again without fully stopping and opening a channel again.
Fortunately I was able to fix it by changing this setting in the options: Main => Speed of channel changing = Fast
Note that this value probably requires that the same decoder filters be used for all formats because they are kept active upon channel change. It's not really a problem because you can use LAV for all formats.
Afterwards, deinterlacing stays on even after a channel change.

Please confirm it works on your side too so I can uninstall ProgDVB, I can't stand this software.
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Old 6th October 2017, 15:42   #46230  |  Link
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Originally Posted by mrmarioman View Post
Quick question.
So what's the better/right option here for HDR movies?

madVR: 0-255 nvidia: 0-255 TV: 0-255
madVR: 0-255 nvidia:16-235 TV: 16-235

in some movies with everything set to full-rgb the blacks look washed out.
Those are both correct, the first is preferred but they should look basically the same if the TV handles both limited and full range correctly.

HDR or not changes nothing. How are you displaying HDR? If you are using pixel shader math to convert to SDR try turning up "this display's peak nits:"
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Old 6th October 2017, 16:00   #46231  |  Link
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Is D3D11 faster then CUVID or the same at the end? What's the benefit?
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Old 6th October 2017, 16:25   #46232  |  Link
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Originally Posted by el Filou View Post
@mzso I reinstalled ProgDVB and tested again. With the default config you're indeed right that deinterlacing gets turned off after the first channel change and there is no way to get it enabled again without fully stopping and opening a channel again.
Fortunately I was able to fix it by changing this setting in the options: Main => Speed of channel changing = Fast
Note that this value probably requires that the same decoder filters be used for all formats because they are kept active upon channel change. It's not really a problem because you can use LAV for all formats.
Afterwards, deinterlacing stays on even after a channel change.

Please confirm it works on your side too so I can uninstall ProgDVB, I can't stand this software.
Sadly, no. This way channel switching is completely broken. Either I get an exception (with microsoft demultiplexer) or broken aspect ratio, hung video and such (with prog demuxer).

I set it all to lav video while testing.
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Old 6th October 2017, 16:40   #46233  |  Link
el Filou
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I'm afraid you'll have to contact ProgDVB devs about this, I don't see another way to fix this.
With MediaPortal I don't have any problem on channel switch with madVR so I guess the issue is on ProgDVB's side.
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Old 6th October 2017, 17:10   #46234  |  Link
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Originally Posted by Asmodian View Post
Those are both correct, the first is preferred but they should look basically the same if the TV handles both limited and full range correctly.

HDR or not changes nothing. How are you displaying HDR? If you are using pixel shader math to convert to SDR try turning up "this display's peak nits:"
Thanks. I thought HDR content used full rgb.

Both options look similar, but using 16-235 looks a bit better on my TV.

For HDR I use 'let madVR decide' or 'passthrough' options.
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Old 6th October 2017, 17:46   #46235  |  Link
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Is D3D11 faster then CUVID or the same at the end? What's the benefit?
Cuvid only has drawbacks over D3D11VA:
It wastes power by preventing downclocking of the card, is less maintained by Nvidia regarding bugs and there is only a copyback mode available with LAV Filters + madVR, which causes overhead on both CPU, GPU and RAM.
Only current advantage for Cuda would be deinterlacing, which is not yet implemented into madVR with D3D11VA. I think it's also just a myth that Cuda deinterlacing would be better in terms of quality. It's not better than D3D11VA and still inferior to YADIF.
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Old 6th October 2017, 18:03   #46236  |  Link
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Cuvid only has drawbacks over D3D11VA:
It wastes power by preventing downclocking of the card, is less maintained by Nvidia regarding bugs and there is only a copyback mode available with LAV Filters + madVR, which causes overhead on both CPU, GPU and RAM.
Thatīs kinda answers my question https://forum.doom9.org/showthread.p...11#post1820811 I see a major improvement on svp smoothness ,but i do not knows if is only for that change of settings.
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Old 6th October 2017, 18:13   #46237  |  Link
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Can't judge SVP, haven't really ever used it. I'd expect that there are no differences as long as system performance is sufficient.
One possibility might also be that Cuda applications are favored for best performance by the driver over other applications.
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Old 6th October 2017, 18:14   #46238  |  Link
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Thanks aufkrawall!
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Old 6th October 2017, 18:16   #46239  |  Link
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Cuvid only has drawbacks over D3D11VA
On top of the listed things, CUVID can also not fully handle HDR.
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Old 6th October 2017, 18:30   #46240  |  Link
aufkrawall
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On top of the listed things, CUVID can also not fully handle HDR.
Is that because it can't fully transport metadata in general?
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