Implement preview

Show 4 frames of the selected movie in PictureViewer2.

1 files changed, 2 insertions, 0 deletions

diff --git a/helper.h b/helper.h
index 75aa811..4f70854 100644
--- a/helper.h
+++ b/helper.h
@@ -35,6 +35,8 @@ namespace Helper {
 	void centerWidget(QWidget *widget);
     QVariantMap ffmpegData(const QString &path);
     QJsonDocument streamData(const QString &path);
+    QPixmap preview(const QString &path);
+    QImage snapshot(const QString &path, int where);
     class Duration {
         public:
             Duration();