persistent data buffers in viewerwidget

2019-03-19 21:56:54 +11:00
parent b29a05bbda
commit 1ff46c009b
3 changed files with 44 additions and 7 deletions
@@ -2814,6 +2814,11 @@ void draw_waveform(ClipPtr clip, const FootageStream* ms, long media_length, QPa
      int offset_range_min = qMin(offset_range_start, offset_range_end);
      int offset_range_max = qMax(offset_range_start, offset_range_end);

+      // Break if we're about to draw from an index that doesn't exist
+      if (offset_range_min+1 >= ms->audio_preview.size()) {
+        break;
+      }
+
      qint8 min = qint8(qRound(double(ms->audio_preview.at(offset_range_min)) / 128.0 * (channel_height/2)));
      qint8 max = qint8(qRound(double(ms->audio_preview.at(offset_range_min+1)) / 128.0 * (channel_height/2)));