examples/qml: add filter example

2026-10-16 20:21:20 +08:00 · 2016-06-19 10:53:59 +08:00
parent 41a4550c9a
commit 9e6b9d0800
2 changed files with 83 additions and 0 deletions
@@ -0,0 +1,40 @@
+import QtQuick 2.1
+import QtAV 1.7
+import QtQuick.Dialogs 1.0
+
+Rectangle {
+    width: 800
+    height: 500
+    color: "black"
+    VideoFilter {
+        id: negate
+        type: VideoFilter.AVFilter
+        avfilter: "negate"
+    }
+    Video {
+        id: video
+        autoPlay: true
+        anchors.fill: parent
+        subtitle.engines: ["FFmpeg"]
+        videoFilters: [negate]
+    }
+    Text {
+        color: "white"
+        text: "Press key 'O' to open a file"
+    }
+    Item {
+        anchors.fill: parent
+        focus: true
+        Keys.onPressed: {
+            switch (event.key) {
+            case Qt.Key_O:
+                fileDialog.open()
+                break
+            }
+        }
+    }
+    FileDialog {
+        id: fileDialog
+        onAccepted: video.source = fileUrl
+    }
+}
@@ -0,0 +1,43 @@
+import QtQuick 2.1
+import QtAV 1.7
+import QtQuick.Dialogs 1.0
+
+Rectangle {
+    width: 800
+    height: 500
+    color: "black"
+
+    VideoFilter {
+        id: negate
+        type: VideoFilter.GLSLFilter
+        shader: Shader {
+            postProcess: "gl_FragColor.rgb = vec3(1.0-gl_FragColor.r, 1.0-gl_FragColor.g, 1.0-gl_FragColor.b);"
+        }
+    }
+    Video {
+        id: video
+        autoPlay: true
+        anchors.fill: parent
+        subtitle.engines: ["FFmpeg"]
+        videoFiltersGPU: [negate]
+    }
+    Text {
+        color: "white"
+        text: "Press key 'O' to open a file"
+    }
+    Item {
+        anchors.fill: parent
+        focus: true
+        Keys.onPressed: {
+            switch (event.key) {
+            case Qt.Key_O:
+                fileDialog.open()
+                break
+            }
+        }
+    }
+    FileDialog {
+        id: fileDialog
+        onAccepted: video.source = fileUrl
+    }
+}