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+--- Thread: [HELP] aomenc greyed-out options (/thread-2268.html)
aomenc greyed-out options - The_Tinkerer - 05.02.2022
Starting to look at other encoders than x264. (This is probably not good.. oh no.)
For aomenc (av1), how do you get the following ungreyed:
Color space on "Base" tab
![[Image: WWzNyPk.png]](https://i.imgur.com/WWzNyPk.png)
"Noise reduction" settings on "Frame" tab
![[Image: rlueX3i.png]](https://i.imgur.com/rlueX3i.png)
(I'm reading this tuning thread on Reddit and I feel like the noise reduction settings may be something that might be good to be able to control... for VP9, the options are not greyed out and I use 5 and 3.)
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Also, this setting is greyed out:
![[Image: GDA2iXs.png]](https://i.imgur.com/GDA2iXs.png)
This is not greyed out on VPX (VP9). It's supposed to be active for 2-pass encodes in aomenc, but selecting a 2-pass encode in Hybrid for aomenc doesn't ungrey it.
From this Reddit thread on tuning VP9:
Quote:"Activates alternate reference frames. Alternate reference frames are 'invisible' frames, never shown to the user, but which are used as a reference when creating the final frames. This allows the encoder to be a lot more efficient, so always use it. It is the default in the standalone vpxenc libvpx-vp9 encoder as of libvpx 1.9.0 and 1.10.0."
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OK, so, I think that for aomenc, selecting a 2-pass encoding mode should ungrey Alternate reference reduction frame decision, and both Noise reduction fields. That is the behavior for VPX. So I'm guessing it's a bug!
RE: aomenc greyed-out options - Selur - 05.02.2022
"aomenc->Base->Format->Color Space" is greyed out since aomenc is always YUV and only the color sampling matters.
It only offers:
--yv12 Input file is YV12
--i420 Input file is I420 (default)
--i422 Input file is I422
--i444 Input file is I444"aomenc->Frame->Noise reduction" + "alternate reference reduction frame decision" are only enabled for 2pass bitrate encoding.
(noise reduction requires "alternate reference reduction frame decision" > 0)
Did you actually test that " --passes=2 --pass=1 --end-usage=cq " actually uses noise redcution and "alternate reference reduction frame decision" ?
-> If they do, I can enabled these two.
Since constrained 2pass encoding did not exist when I implemented it and the aoemenc documentation is simply bad.
Don't really care about reddit posts unless they reference to an official documentation.
Cu Selur
RE: aomenc greyed-out options - Selur - 05.02.2022
"aomenc->Base->Format->Color Space" is greyed out since aomenc is always YUV and only the color sampling matters.
It only offers:
--yv12 Input file is YV12
--i420 Input file is I420 (default)
--i422 Input file is I422
--i444 Input file is I444"aomenc->Frame->Noise reduction" + "alternate reference reduction frame decision" are only enabled for 2pass bitrate encoding.
(noise reduction requires "alternate reference reduction frame decision" > 0)
Did you actually test that " --passes=2 --pass=1 --end-usage=cq " actually uses noise redcution and "alternate reference reduction frame decision" ?
-> If they do, I can enabled these two.
(send you a dev version for testing)Since constrained 2pass encoding did not exist when I implemented it and the aoemenc documentation is simply bad.
Don't really care about reddit posts unless they reference to an official documentation.
Cu Selur
RE: aomenc greyed-out options - The_Tinkerer - 05.02.2022
Thanks for the beta, I'll test it later, I find with VP9 it makes a difference on high saturated parts of the image (i.e. bright reds) with lots of detail. I check it with the same content.
