From 0279f4fb5778157c25fcbd9189f88b88d8557cad Mon Sep 17 00:00:00 2001
From: Max Kellermann <max.kellermann@gmail.com>
Date: Mon, 8 Aug 2022 22:01:56 +0200
Subject: [PATCH] output/jack: fix bogus assertion failure

Regression from commit 45071607aa277dbbf3814e9a06c8371be75f27c5

Closes https://github.com/MusicPlayerDaemon/MPD/issues/1571
---
 src/output/plugins/JackOutputPlugin.cxx | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/output/plugins/JackOutputPlugin.cxx b/src/output/plugins/JackOutputPlugin.cxx
index 31f15a70d..3667e5729 100644
--- a/src/output/plugins/JackOutputPlugin.cxx
+++ b/src/output/plugins/JackOutputPlugin.cxx
@@ -693,13 +693,13 @@ JackOutput::WriteSamples(const float *src, size_t n_frames)
 std::size_t
 JackOutput::Play(std::span<const std::byte> _src)
 {
+	const size_t frame_size = audio_format.GetFrameSize();
+	assert(_src.size() % frame_size == 0);
+
 	const auto src = FromBytesStrict<const float>(_src);
 
 	pause = false;
 
-	const size_t frame_size = audio_format.GetFrameSize();
-	assert(src.size() % frame_size == 0);
-
 	const std::size_t n_frames = src.size() / audio_format.channels;
 
 	while (true) {