The quality slider behavior doesn't seem to match the documentation on Silicon Mac using VideoToolbox

[GCustom]

Using Constant Quality, lower numbers give worse quality, higher numbers give higher quality, the recommended ranges don't look great, and even with much higher numbers it's tough to get smoke or fog not to look blocky. Using M1 Max and the latest public releases of MacOS and Handbrake for Mac. I've found 50 to be my best compromise for 1080p and 4K and out of laziness I keep it there for DVD releases too but they could use further tweaking.

[bradleysepos]

@galad87 Perhaps you could take a look at this when you have time?

[galad87]

I don't think we have any recommendation for VideoToolbox, only for x264/x265, where are you seeing this in the docs?

[GCustom]

HandBrake Documentation — Adjusting qualityhttps://handbrake.fr/docs/en/latest/workflow/adjust-quality.html I’m using the H.265 (VideoToolbox) encoder, similar results but faster progress and larger files with H.264

From: Damiano Galassi @.> Date: Tuesday, August 30, 2022 at 00:12 To: HandBrake/HandBrake-docs @.> Cc: GCustom @.>, Author @.> Subject: Re: [HandBrake/HandBrake-docs] The quality slider behavior doesn't seem to match the documentation on Silicon Mac using VideoToolbox (Issue #168)

I don't think we have any recommendation for VideoToolbox, only for x264/x265, where are you seeing this in the docs?

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[galad87]

That page talks only about x264 and x265. Each encoder has got a different range/direction, and VideoToolbox goes from 0 (lower quality) to 100 (max quality).

[GCustom]

Ah, perhaps it could use this clarification you just gave, I came from my PC using NVenc and Quick Sync which seemed to behave closer to the example given on the page, but VideoToolbox didn’t have similar behavior thus the confusion.

So it isn’t an error in the docs or the interface then, but adding that line might save someone else confusion and give a better starting point for their trial and error.

Thanks for looking into this.

From: Damiano Galassi @.> Date: Tuesday, August 30, 2022 at 00:18 To: HandBrake/HandBrake-docs @.> Cc: GCustom @.>, Author @.> Subject: Re: [HandBrake/HandBrake-docs] The quality slider behavior doesn't seem to match the documentation on Silicon Mac using VideoToolbox (Issue #168)

That page talks only about x264 and x265. Each encoder has got a different range/direction, and VideoToolbox goes from 0 (lower quality) to 100 (max quality).

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