pipewire-graph-samplerate.patch

   1 From d5be8c74b009cdfc16b2b637aa9c4edb11cf105d Mon Sep 17 00:00:00 2001
   2 From: Max Kellermann <max@musicpd.org>
   3 Date: Mon, 18 Oct 2021 16:45:21 +0200
   4 Subject: [PATCH] output/pipewire: attempt to change the graph sample rate
   5
   6 Requires PipeWire 0.3.32.
   7
   8 Closes https://github.com/MusicPlayerDaemon/MPD/issues/1283
   9 ---
  10  NEWS                                        | 1 +
  11  src/output/plugins/PipeWireOutputPlugin.cxx | 7 +++++++
  12  2 files changed, 8 insertions(+)
  13
  14 diff --git a/src/output/plugins/PipeWireOutputPlugin.cxx b/src/output/plugins/PipeWireOutputPlugin.cxx
  15 index 6579c93b6..db7c36823 100644
  16 --- a/src/output/plugins/PipeWireOutputPlugin.cxx
  17 +++ b/src/output/plugins/PipeWireOutputPlugin.cxx
  18 @@ -383,6 +383,13 @@ PipeWireOutput::Open(AudioFormat &audio_format)
  19         if (target != nullptr && target_id == PW_ID_ANY)
  20                 pw_properties_setf(props, PW_KEY_NODE_TARGET, "%s", target);
  21
  22 +#ifdef PW_KEY_NODE_RATE
  23 +       /* ask PipeWire to change the graph sample rate to ours
  24 +          (requires PipeWire 0.3.32) */
  25 +       pw_properties_setf(props, PW_KEY_NODE_RATE, "1/%u",
  26 +                          audio_format.sample_rate);
  27 +#endif
  28 +
  29         const PipeWire::ThreadLoopLock lock(thread_loop);
  30
  31         stream = pw_stream_new_simple(pw_thread_loop_get_loop(thread_loop),