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+--- Thread: [HELP] deblock with negative value (/thread-1316.html)
deblock with negative value - ssdde - 18.04.2020
i want to set deblock a negative value, eg: -3, because i see from internet that set a negative deblock value can have a sharpen effect
but in Hybrid, it can't be set to a negative value, how to do?
![[Image: 6FEaT.jpg]](https://s3.jpg.cm/2020/04/19/6FEaT.jpg)
RE: deblock with negative value - Selur - 18.04.2020
short: there is no such thing, you are mixing things up
longer: I think you are mixing up stuff there.
The Vapoursynth Deblock filter is a port of the Avisynth DeBlock filter: http://www.avisynth.nl/users/fizick/mvtools/deblock.html
And there is no negative quantizer.
What you probably read is about the (inloop-)deblock options in x264 and x265.
see for example: https://x265.readthedocs.io/en/default/cli.html#cmdoption-deblock
The values in these would be similar to the offset values of the filter above, but are also totally different since a normal deblock filter and a inloop-deblock filter are quite different.
=> those negative values you want to set are probably encoder settings.
Also those values do not have a sharpen effect on the source, they only cause the encoder not to smooth.
Cu Selur
RE: deblock with negative value - ssdde - 19.04.2020
(18.04.2020, 22:05)Selur Wrote: short: there is no such thing, you are mixing things up
longer: I think you are mixing up stuff there.
The Vapoursynth Deblock filter is a port of the Avisynth DeBlock filter: http://www.avisynth.nl/users/fizick/mvtools/deblock.html
And there is no negative quantizer.
What you probably read is about the (inloop-)deblock options in x264 and x265.
see for example: https://x265.readthedocs.io/en/default/cli.html#cmdoption-deblock
The values in these would be similar to the offset values of the filter above, but are also totally different since a normal deblock filter and a inloop-deblock filter are quite different.
=> those negative values you want to set are probably encoder settings.
Also those values do not have a sharpen effect on the source, they only cause the encoder not to smooth.
Cu Selur
yes, maybe the deblock i mean is in x264 encoder. thanks
RE: deblock with negative value - shijan - 19.04.2020
x264 Tune "grain" preset gives you --deblock -2:-2
RE: deblock with negative value - Selur - 19.04.2020
yes, this modifies how the inloop deblocker works.
This is totally unrelated to the 'deblock' filter.