From 67a060a8cf7b2789960f7bf3f63c70559c916292 Mon Sep 17 00:00:00 2001
From: Simon Inns <simoninns@fastmail.com>
Date: Wed, 2 Dec 2020 20:06:04 +0100
Subject: [PATCH] Fix for issue #557

---
 tools/ld-discmap/discmapper.cpp | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/tools/ld-discmap/discmapper.cpp b/tools/ld-discmap/discmapper.cpp
index 1864ab343..0fd538be7 100644
--- a/tools/ld-discmap/discmapper.cpp
+++ b/tools/ld-discmap/discmapper.cpp
@@ -620,17 +620,23 @@ bool DiscMapper::saveDiscMap(DiscMap &discMap)
         // Open the input audio file
         if (!sourceAudio.open(inputFileInfo)) {
             // Could not open input audio file
-            qInfo() << "Cannot open source audio file:" << inputFileInfo.absolutePath() + "/" + inputFileInfo.baseName() + ".pcm";
+            qInfo() << "Cannot open source audio file:" << inputFileInfo.absolutePath() + "/" + inputFileInfo.completeBaseName() + ".pcm";
             sourceVideo.close();
             sourceAudio.close();
             return false;
         }
 
         // Open the output audio file
-        targetAudio.setFileName(outputFileInfo.absolutePath() + "/" + outputFileInfo.baseName() + ".pcm");
+        targetAudio.setFileName(outputFileInfo.absolutePath() + "/" + outputFileInfo.completeBaseName() + ".pcm");
+        if (targetAudio.exists()) {
+            qInfo() << "Target audio file already exists:" << targetAudio.fileName() << "- Cannot proceed!";
+            sourceVideo.close();
+            sourceAudio.close();
+            return false;
+        }
         if (!targetAudio.open(QIODevice::WriteOnly)) {
             // Could not open target audio file
-            qInfo() << "Cannot open target audio file:" << outputFileInfo.absolutePath() + "/" + outputFileInfo.baseName() + ".pcm";
+            qInfo() << "Cannot open target audio file:" << targetAudio.fileName();
             sourceVideo.close();
             sourceAudio.close();
             return false;