recipes-multimedia/musicpd/files/0004-output-PipeWire-after-Cancel-refill-buffer-before-re.patch

   1 From c8dae95eff60419fdff88d55400b6cbaacac137d Mon Sep 17 00:00:00 2001
   2 From: Max Kellermann <max.kellermann@gmail.com>
   3 Date: Sat, 9 Jul 2022 00:59:35 +0200
   4 Subject: [PATCH] output/PipeWire: after Cancel(), refill buffer before
   5  resuming playback
   6
   7 Deactivate the stream in Cancel().  This fixes stuttering after a
   8 manual song change by refilling the whole ring buffer before
   9 reactivating the stream.
  10
  11 Closes https://github.com/MusicPlayerDaemon/MPD/issues/1354
  12
  13 Upstream-Status: Backport [https://github.com/MusicPlayerDaemon/MPD/commit/c8dae95eff60419fdff88d55400b6cbaacac137d]
  14 Signed-off-by: Scott Murray <scott.murray@konsulko.com>
  15
  16 ---
  17 diff --git a/src/output/plugins/PipeWireOutputPlugin.cxx b/src/output/plugins/PipeWireOutputPlugin.cxx
  18 index 0f8550d41..16febe909 100644
  19 --- a/src/output/plugins/PipeWireOutputPlugin.cxx
  20 +++ b/src/output/plugins/PipeWireOutputPlugin.cxx
  21 @@ -901,6 +901,15 @@ PipeWireOutput::Cancel() noexcept
  22         /* clear libpipewire's buffer */
  23         pw_stream_flush(stream, false);
  24         drained = true;
  25 +
  26 +       /* pause the PipeWire stream so libpipewire ceases invoking
  27 +          the "process" callback (we have no data until our Play()
  28 +          method gets called again); the stream will be resume by
  29 +          Play() after the ring_buffer has been refilled */
  30 +       if (active) {
  31 +               active = false;
  32 +               pw_stream_set_active(stream, false);
  33 +       }
  34  }
  35
  36  bool
  37 --
  38 2.39.0
  39