From: Mike Brady <4265913+mikebrady@users.noreply.github.com> Date: Wed, 7 Jul 2021 14:36:56 +0000 (+0100) Subject: Update BUILDFORAP2.md X-Git-Tag: 4.1-dev~23 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=101cc0273df570423bc4c9524e61cdfa5525f51e;p=thirdparty%2Fshairport-sync.git Update BUILDFORAP2.md --- diff --git a/BUILDFORAP2.md b/BUILDFORAP2.md index 540a9516..9d630183 100644 --- a/BUILDFORAP2.md +++ b/BUILDFORAP2.md @@ -4,7 +4,6 @@ Experimental Build Instructions for AirPlay 2 * Be especially careful with audio systems capable of very high volume output -- the volume control in this software may not be reliable! * Initially, at least, leave the settings in the configuration file at default except as noted below. * At the time of writing, May 2, 2021, everything is on the latest version of the software -- macOS 11..3, iOS 14.5, Raspberry Pi OS 5.10.17-v7l+ (Buster), Ubuntu 20.04 -- fully updated. -* At present, Shairport Sync will compile *but not work* on Raspbian Stretch (thanks JD Smith). * AirPlay 2 seems to use a timing system based on the [IEEE-1588 Precision Timing Protocol (PTP)](https://standards.ieee.org/standard/1588-2008.html). Shairport Sync relies on a program called [`nqptp`](https://github.com/mikebrady/nqptp) to monitor PTP signals. This program uses ports 319 and 320 and replaces any PTP service you have on the computer. In addition, `nqptp` must run with `root` privileges. (FYI, most computers do not have a PTP clock running -- instead, they may use a [Network Timing Protocol (NTP)](http://www.ntp.org) service to keep the system clock synchronised with world time.) @@ -13,6 +12,8 @@ Experimental Build Instructions for AirPlay 2 Build and Install Instructions == +Overall, you'll be installing two programs. The first one is `nqptp` and the second one is Shairport Sync itself. + In the commands below, for a Debian-like Linux, note the convention that a `#` prompt means you are in superuser mode and a `$` prompt means you are in a regular unprivileged user mode. You can use `sudo` *("SUperuser DO")* to temporarily promote yourself from user to superuser, if permitted. For example, if you want to execute `apt-get update` in superuser mode and you are in user mode, enter `sudo apt-get update`. ### Turn Off WiFi Power Management