From ee9170d1a0077be0e2eda7d6067af4ab03d6c641 Mon Sep 17 00:00:00 2001
From: Paul Fd <paul@ferrand.cc>
Date: Sun, 21 Mar 2021 17:28:26 +0100
Subject: [PATCH] Some leeway in frame counting for the playhead moving

---
 src/sfizz/Config.h  | 6 ++++++
 src/sfizz/Synth.cpp | 2 +-
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/sfizz/Config.h b/src/sfizz/Config.h
index ac25d3e5..89a44e09 100644
--- a/src/sfizz/Config.h
+++ b/src/sfizz/Config.h
@@ -172,6 +172,12 @@ namespace config {
      * and the voice will release itself at the end of the decay stage.
      */
     constexpr float sustainFreeRunningThreshold { 0.0032f };
+    /**
+     * @brief Number of frames offset between the end of a block and the beginning of the next
+     * detected as a shift in the playhead position
+     *
+     */
+    constexpr int playheadMovedFrames { 16 };
 } // namespace config
 
 } // namespace sfz
diff --git a/src/sfizz/Synth.cpp b/src/sfizz/Synth.cpp
index d94aba30..95e588de 100644
--- a/src/sfizz/Synth.cpp
+++ b/src/sfizz/Synth.cpp
@@ -1316,7 +1316,7 @@ void Synth::timePosition(int delay, int bar, double barBeat)
     const auto newBeatPosition = newPosition.toBeats(impl.resources_.beatClock.getTimeSignature());
     const auto currentBeatPosition = impl.resources_.beatClock.getLastBeatPosition();
     const auto positionDifference = std::abs(newBeatPosition - currentBeatPosition);
-    const auto threshold = 2 * impl.resources_.beatClock.getBeatsPerFrame();
+    const auto threshold = config::playheadMovedFrames * impl.resources_.beatClock.getBeatsPerFrame();
 
     if (positionDifference > threshold)
         impl.playheadMoved_ = true;