Correctly handle unsupported filters

[kdenlive] / src / abstractclipitem.cpp

diff --git a/src/abstractclipitem.cpp b/src/abstractclipitem.cpp
index 865edd1294911c7452faff3cd88fc15dc822488a..0abf87aa6a116cfd4e2a851f1324904be74ccee6 100644 (file)
--- a/src/abstractclipitem.cpp
+++ b/src/abstractclipitem.cpp
@@ -449,6 +449,21 @@ int AbstractClipItem::keyFrameNumber() const
     return m_keyframes.count();
 }
 
+int AbstractClipItem::checkForSingleKeyframe()
+{
+    // Check if we have only one keyframe
+    if (!m_keyframes.isEmpty() && m_keyframes.count() == 1) {
+       int min = (int) cropStart().frames(m_fps);
+       int max = (int)(cropStart() + cropDuration()).frames(m_fps) - 1;
+       if (m_keyframes.contains(min)) {
+           // Add keyframe at end of clip to allow inserting a new keframe in between
+           m_keyframes[max] = m_keyframes.value(min);
+           return m_keyframes.value(min);
+       }
+    }
+    return -1;
+}
+
 int AbstractClipItem::addKeyFrame(const GenTime &pos, const double value)
 {
     QRectF br = sceneBoundingRect();