deprecated apis: avoid deprecated FFMpeg and Python APIs

Ben Boeckelrequested to merge
ben.boeckel/vtk:deprecated-api-avoidance into master

Avoid APIs deprecated in FFMpeg and Python 3.11.

Cc: @dgobbi @banesullivan @cory.quammen

Backport: paraview/release:HEAD
Backport: release:HEAD^2

Edited by Ben Boeckel

Merge request reports