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rework -db option implementation; add -taper vol control option

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F. Duncanh
2023-12-29 04:32:31 -05:00
parent 8edadd262b
commit 52d134d596
7 changed files with 97 additions and 36 deletions
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README.md
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@@ -416,7 +416,8 @@ delays the video on the client to match audio on the server, so leads to
a slight delay before a pause or track-change initiated on the client takes effect on the audio played by the server.
AirPlay volume-control attenuates volume (gain) by up to -30dB: the range -30dB:0dB can be rescaled from _Low_:0 (_Low_ < 0), or _Low_:_High_, using the
option "`-db _Low_`" or "``-db _Low_:_High_``" (Rescaling is linear in decibels).
option "`-db _Low_`" or "``-db _Low_:_High_``" (Rescaling is linear in decibels). The option ```-taper``` provides a "tapered" AirPlay volume-control
profile some users may prefer.
The -vsync and -async options
also allow an optional positive (or negative) audio-delay adjustment in _milliseconds_ for fine-tuning : `-vsync 20.5`
@@ -751,6 +752,11 @@ using UxPlay as a second monitor for a mac computer, or monitoring a webcam; wit
and the maximum volume (AirPlay 0dB) is a 10dB augmentation, and Airplay -30dB would become -50dB. Note that the minimum AirPlay value (-30dB exactly)
is translated to "mute".
**-taper** Provides a "tapered" Airplay volume-control profile (matching the one called "dasl-tapering"
in [shairport-sync](https://github.com/mikebrady/shairport-sync)): each time the length of the
volume slider (or the number of steps above mute, where 16 steps = full volume) is reduced by 50%, the perceived volume is halved (a 10dB attenuation).
(This is modified at low volumes, to use the "untapered" volume if it is louder.)
**-s wxh** (e.g. -s 1920x1080 , which is the default ) sets the display resolution (width and height,
in pixels). (This may be a
request made to the AirPlay client, and perhaps will not
@@ -1188,11 +1194,12 @@ tvOS 12.2.1), so it does not seem to matter what version UxPlay claims to be.
# Changelog
1.68 2023-12-26 Introduced a simpler (default) method for generating a persistent public key from the server MAC
1.68 2023-12-29 Introduced a simpler (default) method for generating a persistent public key from the server MAC
address (which can now be set with the -m option). (The previous pem-file method is still available
with -key option). New option -reg to maintain a register of pin-authenticated clients. Corrected
volume-control: now inteprets AirPlay volume range -30dB:0dB as (gain/amplitude) decibel attenuation,
with new option -db low[:high] for "flat" rescaling of the dB range.
with new option -db low[:high] for "flat" rescaling of the dB range. Add -taper option for a "tapered"
AirPlay volume-control profile.
1.67 2023-11-30 Add support for Apple-style one-time pin authentication of clients with option "-pin":
(uses SRP6a authentication protocol and public key persistence). Detection with error message