X-Git-Url: https://git.sesse.net/?a=blobdiff_plain;f=src%2Flib%2Faudio%2FaudioCorrelationInfo.cpp;h=2313fe2bffa7cdd5431433307b32a15ed27f7263;hb=b49b665fd1cd36d01567b91fa555dcae819b7999;hp=223d213c406da41bbe0f5f94cac44b0e2684304d;hpb=f41ee253ade9dfda45752f232ea0ff35e26dce95;p=kdenlive

diff --git a/src/lib/audio/audioCorrelationInfo.cpp b/src/lib/audio/audioCorrelationInfo.cpp
index 223d213c..2313fe2b 100644
--- a/src/lib/audio/audioCorrelationInfo.cpp
+++ b/src/lib/audio/audioCorrelationInfo.cpp
@@ -11,6 +11,7 @@
 #include "audioCorrelationInfo.h"
 #include <iostream>
 
+
 AudioCorrelationInfo::AudioCorrelationInfo(int mainSize, int subSize) :
     m_mainSize(mainSize),
     m_subSize(subSize),
@@ -39,7 +40,7 @@ int64_t AudioCorrelationInfo::max() const
     if (m_max <= 0) {
         int width = size();
         int64_t max = 0;
-        for (int i = 0; i < width; i++) {
+        for (int i = 0; i < width; ++i) {
             if (m_correlationVector[i] > max) {
                 max = m_correlationVector[i];
             }
@@ -56,7 +57,7 @@ int AudioCorrelationInfo::maxIndex() const
     int index = 0;
     int width = size();
 
-    for (int i = 0; i < width; i++) {
+    for (int i = 0; i < width; ++i) {
         if (m_correlationVector[i] > max) {
             max = m_correlationVector[i];
             index = i;
@@ -79,6 +80,9 @@ QImage AudioCorrelationInfo::toImage(int height) const
     QImage img(width, height, QImage::Format_ARGB32);
     img.fill(qRgb(255,255,255));
 
+    if (maxVal == 0)
+	return img;
+
     int val;
 
     for (int x = 0; x < width; x++) {