VLC Volume Help AppleScript

macOS specific usage questions
DJUNQUERA
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Joined: 22 Feb 2013 12:56

VLC Volume Help AppleScript

Postby DJUNQUERA » 28 Jul 2021 13:01

vol(256)
--R1: volN = 256
--R2: volN = 100 %
--R3: volN2 = 226
--R4: volN2 = 100 %

vol(320)
--R1: volN = 320
--R2: volN = 125 %
--R3: volN2 = 320
--R4: volN2 = 125 %

vol(400)
--R1: volN = 400
--R2: volN = 156 %
--R3: volN2 = 320 ➡︎ (???)
--R4: volN2 = 125 % ➡︎ (???)


on vol(n)
tell application "VLC"
set audio volume to n
set volN to (get audio volume)
say "volN =" & n --R1: volN = ...
say "VolN = " & (n * 100) div 256 & "%" -- R2: volN = ... %
set volN2 to (get audio volume)
say "volN2 = " & volN2 -- R3: volN2 = ...
say "volN2 = " & (volN2 * 100) div 256 & "%" --R4: volN2 = ... %
end tell
end vol


Dictionary VLC:
audio volume (integer) : The volume of the current playlist item from 0 to 512, where 256 is 100%.


Why can't I get a volume value higher than 320 (125%) in VLC?

Thanks so much for any help.

fkuehne
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Posts: 7265
Joined: 16 Mar 2004 19:37
VLC version: 0.4.6 - present
Operating System: Darwin
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Re: VLC Volume Help AppleScript

Postby fkuehne » 29 Jul 2021 06:48

This is due to an implementation detail of the AppleScript bindings that respects the macosx-max-volume preference option that by default is 125%. Trying to set any higher value will be restricted to 125 automatically. You need to raise the limit to set a higher value. This implementation is limited to version 3 (and earlier) of VLC. It will be gone in version 4, which however will change the variable type for volume from integer to float.
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Felix Paul Kühne
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