How to convert png to gif with QT

[brucewuu]

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 ?

[cincirin]

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

[JohanSolo]

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).

[brucewuu]

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 .

[mirswith]

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

[brucewuu]

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