在Android和iOS上使用QT和QML编辑视频

Question

Is it possible to edit a video using QT/QML for Android and iOS?

I would like to be able to trim a video from timeX to timeY and add (if possible) a watermark.

I did some research but I didn't find anything good.

Answer 1

All Qt has to offer regarding video is contained in the Qt Multimedia library.

This library is not designed to do video editing, so you will have nothing out of the box.

However, it might be possible to combine QMediaRecorder and QMediaPlayer to trim a video. And you also have access to video frames: https://doc.qt.io/qt-5/videooverview.html#working-with-low-level-video-frames

I am not sure you will be able to do what you want using only Qt Multimedia, you might be better off using a dedicated video editing library. Maybe you can take a look at OpenShot, it is an open source video editor. The user interface is built with Qt and the video editing functions are in a separate library: libopenshot .