From 432d85ccb2a9269cd84efef565bee82d184fe91d Mon Sep 17 00:00:00 2001
From: inspectredc <inspectredc@gmail.com>
Date: Mon, 26 Jan 2026 15:33:05 +0000
Subject: Fix envelope extraction

---
 src/factories/fzerox/SequenceFactory.cpp | 15 +++++++++++++--
 1 file changed, 13 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/factories/fzerox/SequenceFactory.cpp b/src/factories/fzerox/SequenceFactory.cpp
index bacdfe0..8b80d8a 100644
--- a/src/factories/fzerox/SequenceFactory.cpp
+++ b/src/factories/fzerox/SequenceFactory.cpp
@@ -1310,6 +1310,7 @@ std::optional<std::shared_ptr<IParsedData>> FZX::SequenceFactory::parse(std::vec
     bool largeNotes = false;
     bool scanPastJump = false;
     bool forceLargeNotes = false;
+    bool envelopeMarkedEnd = false;
     int32_t channel = -1;
     int32_t layer = -1;
     std::deque<SeqLabelInfo> posStack;
@@ -1328,6 +1329,10 @@ std::optional<std::shared_ptr<IParsedData>> FZX::SequenceFactory::parse(std::vec
         forceLargeNotes = GetSafeNode<bool>(node, "force_large_notes");
     }
 
+    if (node["envelope_end_markers"]) {
+        envelopeMarkedEnd = GetSafeNode<bool>(node, "envelope_end_markers");
+    }
+
     while (count < size || !posStack.empty()) {
         SeqCommand command;
         bool nextLabel = false;
@@ -1997,8 +2002,14 @@ std::optional<std::shared_ptr<IParsedData>> FZX::SequenceFactory::parse(std::vec
             command.args.emplace_back(arg);
             existingPositions.insert(addr);
             addr += 2 * sizeof(int16_t);
-            if (arg == 0) {
-                break;
+            if (envelopeMarkedEnd) {
+                if (delay == 0xFFFF) {
+                    break;
+                }
+            } else {
+                if (arg == 0) {
+                    break;
+                }
             }
         }
         command.size = addr - envAddr;
-- 
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