This squashed commit comprises a long series of improvements, bug fixes, optimizations, and new feature additions:

- 48,000 frames per second operation,
 - 48k lossless stereo, 5.1 and 7.1 surround sound
 - Multichannel and multi rate operation on ALSA, PipeWire, PulseAudio, FreeBSD, stdout and unix pipe output backends.

Automatic, flexible and controllable output format (rate, sample format and channel count) selection.

Full FFmpeg integration to support transcoding, resampling, and new audio formats.

Better operation on lower powered devices down to e.g. Raspberry Pi B.

Reduced Docker image sizes with a slimmed-down FFmpeg library.

Enhanced timestamp handling for better synchronization.

Improved the sync error calculation.

A new "vernier" resampling and interpolation method for low-power CPUs.

Bug fixes and minor enhancements.

Note -- there are many breaking changes from previous versions of Shairport Sync!

tinysvcmdns.c

@@ -6,7 +6,7 @@
  * tinysvcmdns - a tiny MDNS implementation for publishing services
  * Copyright (C) 2011 Darell Tan
  * All rights reserved.
- * Updated many times by Mike Brady (c) 2014 -- 2019
+ * Updated many times by Mike Brady (c) 2014--2025
  * Includes fixes for CVE-12087 and CVE-2017-12130
  *
  * Redistribution and use in source and binary forms, with or without
@@ -1725,7 +1725,8 @@ struct mdnsd *mdnsd_start() {
   pthread_attr_init(&attr);
   pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
 
-  if (pthread_create(&tid, &attr, (void *(*)(void *)) & main_loop, (void *)server) != 0) {
+  if (named_pthread_create(&tid, &attr, (void *(*)(void *)) & main_loop, (void *)server,
+                           "tinysvcmdns") != 0) {
     pthread_mutex_destroy(&server->data_lock);
     free(server);
     return NULL;