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How to convert png to gif with QT

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  • B Offline
    B Offline
    brucewuu
    wrote on last edited by
    #1

    hi guys , anyone know how to convert png files to gif files , with qt , it seems qt has QPixmap and QPicture , but it seems there is no function to convert it ?

    wish all the best to you from
    bruce wuu
    Autodesk China Inc.
    SW Developer
    M&E Product Developerment Group
    Work 137 6411 8921
    bruce.wu@autodesk.com

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    • C Offline
      C Offline
      cincirin
      wrote on last edited by
      #2

      "Reading and Writing Image Files":http://doc.qt.nokia.com/main-snapshot/qimage.html#reading-and-writing-image-files

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      • JohanSoloJ Offline
        JohanSoloJ Offline
        JohanSolo
        wrote on last edited by
        #3

        I don't think you need to explicitly convert it, you load your png in a QPixmap for instance, and then save it in another file, with gif format (or any other supported format).

        `They did not know it was impossible, so they did it.'
        -- Mark Twain

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        • B Offline
          B Offline
          brucewuu
          wrote on last edited by
          #4

          thanks Cincirin and Johan , actually my problem is to compose several pngs files to a gif animation file , or avi , mp4, flv or other video files , do you have some good suggestions ? thanks again .

          wish all the best to you from
          bruce wuu
          Autodesk China Inc.
          SW Developer
          M&E Product Developerment Group
          Work 137 6411 8921
          bruce.wu@autodesk.com

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          • M Offline
            M Offline
            mirswith
            wrote on last edited by
            #5

            I know this is not a Qt solution however ffmpeg can take a series of images and output video files, not sure if it supports gif animations or not.

            -=ben

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            • B Offline
              B Offline
              brucewuu
              wrote on last edited by
              #6

              thanks mirswith , I will try ffmpeg , and it is cross platform , I need this , thanks again .

              wish all the best to you from
              bruce wuu
              Autodesk China Inc.
              SW Developer
              M&E Product Developerment Group
              Work 137 6411 8921
              bruce.wu@autodesk.com

              1 Reply Last reply
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