1 Reply by mandrews

(11 replies, posted in Using SVP)

FYI JRiver Media Center 36 added support Dolby Vision Profile 7 Enhancement Layer streams:

https://yabb.jriver.com/interact/index. … 755.0.html

When SVP /Avisynth is running, this causes Media Center to crash. Their developer added in code to turn of the DV FEL when a third party filter is detected in the chain. They also indicated that most likely this will never be possible to support by filters like SVP because of the extra video layer being displayed.

Just wanted to make you guys aware in case you see anyway to make this work. Otherwise I'm still running SVP even if the DV FEL doesn't work.

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2 Reply by mandrews

(3 replies, posted in Using SVP)

I still get this from time to time. Not every day. But at least a couple of times a week. Wish there was a way to fix this and prevent the green flash at the beginning of playback. FYI, I'm using JRiver for playback with the latest version of SVP.

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3 Reply by mandrews

(11 replies, posted in Using SVP)

YES! That did the trick. Jriver (JRVR engine) is now showing the Dolby Vision flag in its OSD, when it previously was not.

Thank you! I will post this on their forum that SVP with JRiver supports their implementation of DV.

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4 Reply by mandrews

(11 replies, posted in Using SVP)

I posted your response to their beta forum (I can't link directly to it since it is beta and they just added DV support). This is the response I got:

The metadata was updated in LAV 0.80 to include DoVi extensions, so they would need to cover that change, if they don't already.

https://github.com/Nevcairiel/LAVFilter … 3cf17f3ff7

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5 Topic by mandrews

(11 replies, posted in Using SVP)

I used the JRiver player combined with SVP and AVISynth. JRiver recently added "limited Dolby Vision processing on Profile 7 video streams (similar to a Profile 8.1 stream), including the new per-scene brightness data".

Unfortunately it doesn't appear that using SVP with AVISynth passes through any DV data. I got a reply from one of the JRiver developers:

"I had a look at the Avisynth Filter they recommend to use, and while it processes some basic HDR metadata, I see no trace of supporting DoVi metadata, neither the old or the new version with the extension data. Someone tried to add support some time ago but it never got anywhere. Either way, the filter would need to forward the metadata from LAV Video to JRVR, thats the only way it can cooperate with DoVi."

Hoping this could be added in the future. Thanks!

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6 Topic by mandrews

(0 replies, posted in Using SVP)

Any ideas on how to stop crashing due to Avisynth Filter?

Windows 11 Event Viewer says this:

Faulting application name: Media Center 34.exe, version: 34.0.41.0, time stamp: 0x685aa7a5
Faulting module name: avisynth_filter_64.ax, version: 1.4.7.0, time stamp: 0x651db54a
Exception code: 0xc0000409
Fault offset: 0x0000000000050c59
Faulting process id: 0x0x1150
Faulting application start time: 0x0x1DBE53C4E0B30B4
Faulting application path: C:\Program Files\J River\Media Center 34\Media Center 34.exe
Faulting module path: C:\Program Files (x86)\SVP 4\avsf\avisynth_filter_64.ax
Report Id: f3099a4c-2dc9-4e8a-a744-a15592677bde
Faulting package full name:
Faulting package-relative application ID:

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7 Reply by mandrews

(3 replies, posted in Using SVP)

Thanks for the reply.

No, it only happens occasionally, maybe once per day. I can stop and start the same file numerous times without the green flash. Seems to happen on different files (mkv 4k UHD rips).

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8 Topic by mandrews

(3 replies, posted in Using SVP)

At the beginning of playback, occasionally, maybe once a day, I notice a completely green screen that flashes for a half second and then the video plays. Anyone know why and how to prevent this?

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9 Reply by mandrews

(1 replies, posted in Using SVP)

.

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10 Topic by mandrews

(1 replies, posted in Using SVP)

I've got SVP working very well with minimal to no noticeable artifacts in most scenes in movies. However, at the beginning of certain movies where this is white or almost white text on black backgrounds, the text flickers really bad. See attached screenshot. Is there any way to fix or minimize this? Is there a way to get SVP to not do any processing in these types of scenes? I Really just need it for panning scenes on my OLED.

I've attached a screenshot of my settings as well. I'm running the screen refresh rate at 120hz fyi.

I know there are lots of undocumented advanced settings that I have no idea what they do. Any help is appreciated! Thanks!

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