audiovisualwaveform: detect if the start index exceeds the buffer sample count

Fixes segfault.
2020-06-11 21:24:50 +10:00
parent a9a13c4b0c
commit ccf5d4cece
3 changed files with 9 additions and 34 deletions
@@ -243,6 +243,11 @@ void AudioVisualWaveform::DrawSample(QPainter *painter, const QVector<SamplePerC
 void AudioVisualWaveform::DrawWaveform(QPainter *painter, const QRect& rect, const double& scale, const AudioVisualWaveform &samples, const rational& start_time)
 {
  int start_sample_index = samples.time_to_samples(start_time);
+
+  if (start_sample_index >= samples.nb_samples()) {
+    return;
+  }
+
  int next_sample_index = start_sample_index;
  int sample_index;