Don't attempt to create audio thumbs if thumbs are disabled.

BUGS: 448304

src/bin/projectclip.cpp

@@ -116,7 +116,7 @@ ProjectClip::ProjectClip(const QString &id, const QIcon &thumb, const std::share
         // Generate clip thumbnail
         ClipLoadTask::start({ObjectType::BinClip,m_binId.toInt()}, QDomElement(), true, -1, -1, this);
         // Generate audio thumbnail
-        if (m_clipType == ClipType::AV || m_clipType == ClipType::Audio || m_clipType == ClipType::Playlist || m_clipType == ClipType::Unknown) {
+        if (KdenliveSettings::audiothumbnails() && (m_clipType == ClipType::AV || m_clipType == ClipType::Audio || m_clipType == ClipType::Playlist || m_clipType == ClipType::Unknown)) {
             AudioLevelsTask::start({ObjectType::BinClip, m_binId.toInt()}, this, false);
         }
     }
@@ -536,7 +536,7 @@ bool ProjectClip::setProducer(std::shared_ptr<Mlt::Producer> producer)
     getFileHash();
     // set parent again (some info need to be stored in producer)
     updateParent(parentItem().lock());
-    if (m_clipType == ClipType::AV || m_clipType == ClipType::Audio || m_clipType == ClipType::Playlist || m_clipType == ClipType::Unknown) {
+    if (KdenliveSettings::audiothumbnails() && (m_clipType == ClipType::AV || m_clipType == ClipType::Audio || m_clipType == ClipType::Playlist || m_clipType == ClipType::Unknown)) {
         AudioLevelsTask::start({ObjectType::BinClip, m_binId.toInt()}, this, false);
     }
     pCore->bin()->reloadMonitorIfActive(clipId());