Qt Forum

    • Login
    • Search
    • Categories
    • Recent
    • Tags
    • Popular
    • Users
    • Groups
    • Search
    • Unsolved

    Update: Forum Guidelines & Code of Conduct


    Qt World Summit: Early-Bird Tickets

    QQuickItem to QImage

    General and Desktop
    qquickitem qimage conversion slow
    1
    1
    914
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • Z
      Zondar last edited by

      Hi,

      I am trying to create QR reader for Android, I managed to get everything worked. But use QML Camera and VideoOutput and QR decoding is written in C++, so I had to get QImage from VideoOutput, so I used QQuickItem::grabToImage. I would like to scan for example every 200 ms, but when I tried to do it, app was lagging. Any ideas how to get QImage from VideoOutput fast?
      EDIT: QR decoding runs in different thread

      Thanks in advance

      1 Reply Last reply Reply Quote 0
      • First post
        Last post