Solved Cropping a part of a Video in qml
-
Hi all,
I am sending a Video stream from C++ side to Qml side. I am using QQuickImageProvider to achieve this. Here is my Qml side and working fine for streaming video on the interface.
Rectangle { id: id_rectangle_img x: 200 y: 175 visible: true width: 960 height: 540 border.color: "black" clip: true Image { id: id_in1_image_img property bool counter: false width: 960 height: 540 visible: false asynchronous: false source: "image://live/image" anchors.centerIn: parent fillMode: Image.PreserveAspectFit cache: false function reload() { counter = !counter source = "image://live/image?id=" + counter } } }
I want to crop a specific part of this video and want to use it in another place of the interface. My question is that how I can crop(cut) that part and copy to another side of the interface?
-
@Yunus said in Cropping a part of a Video in qml:
I am sending a Video stream from C++ side to Qml side. I am using QQuickImageProvider to achieve this.
That is not the correct solution. Use VideoOutput and a custom source to do that. See one of my previous post on how to do that : https://forum.qt.io/topic/25669/qml-optimal-way-to-stream-update-images-qt-5/3
As for your actual question about duplicating and cropping an already displayed item, you can use
ShaderEffectSource
-
I also tried VideoOutput but couldnt really see an advantage or difference with the imageprovider.
-
I also tried VideoOutput but couldnt really see an advantage or difference with the imageprovider.
Better performance and simpler QML code. ImageProvider is not meant for video.
If you can also share the duplicated post, I ll appreciate. Thanks.
¿ Which duplicated post ?