Avoid compile problems by suppressing relevant parts

Author: usiems

generator/typesystem_multimedia.xml

@@ -90,8 +90,9 @@
 <namespace-type name="QAudio"/>
 <namespace-type name="QMultimedia" since-version="5"/>
 
-<object-type name="QAbstractVideoBuffer"/>
-<object-type name="QAbstractVideoBuffer::MapData"/>
+<object-type name="QAbstractVideoBuffer" before-version="6"/>
+<rejection class="QAbstractVideoBuffer" since-version="6"/>  <!-- needs more work -->
+<rejection class="QAbstractVideoBuffer::MapData"/>  <!-- needs more work -->
 <object-type name="QAbstractVideoSurface"/>
 <object-type name="QAudioBuffer"/>
 <object-type name="QAudioDecoder"/>
@@ -114,6 +115,7 @@
 <object-type name="QMediaContent"/>
 <object-type name="QMediaControl"/>
 <object-type name="QMediaMetaData"/>
+<rejection class="QMediaMetaData" function-name="asKeyValueRange" since-version="6.8"/> <!-- uses "auto" -->
 <object-type name="QMediaObject"/>
 <object-type name="QMediaPlayer"/>
 <object-type name="QMediaPlaylist"/>