Fix slideshow clips created with invalid frame duration

diff --git a/src/slideshowclip.cpp b/src/slideshowclip.cpp
index dbe15e2dc7c1094bbf5742ecacd4424c4a0c92b7..9bbd85422c66ad167a97af1ca016877672be13b9 100644 (file)
--- a/src/slideshowclip.cpp
+++ b/src/slideshowclip.cpp
@@ -438,14 +438,14 @@ void SlideshowClip::slotMethodChanged(bool active)
 {
     if (active) {
         // User wants mimetype image sequence
-        if (m_view.clip_duration->text().isEmpty()) {
+        if (m_view.clip_duration->text().isEmpty() || m_view.clip_duration->text().length() < 4) {
             m_view.clip_duration->setText(m_timecode.reformatSeparators(KdenliveSettings::image_duration()));
         }
         m_view.stackedWidget->setCurrentIndex(0);
         KdenliveSettings::setSlideshowbymime(true);
     } else {
         // User wants pattern image sequence
-        if (m_view.clip_duration->text().isEmpty()) {
+        if (m_view.clip_duration->text().isEmpty() || m_view.clip_duration->text().length() < 4) {
             m_view.clip_duration->setText(m_timecode.reformatSeparators(KdenliveSettings::sequence_duration()));
         }
         m_view.stackedWidget->setCurrentIndex(1);