I know there is already some issues in saving animation with ffmpeg bug i did not see the same error message I have.
I installed paraview@master with spack adding the flag
-DPARAVIEW_ENABLE_FFMPEG in my build of paraview.
The installation is based on ffmpeg 6.0 (i tried with 6.1 but there is no changes), and build without error.
However when I want to save some animation in AVI fomat I get this error:
( 29.524s) [paraview ]vtkSMSaveAnimationProxy:396 WARN| vtkSMSaveAnimationProxy (0x5561b9846da0): The requested resolution '(844, 251)' has been changed to '(844, 248)' to match format specification. ( 29.571s) [paraview ]vtkSMPropertyHelper.cxx:570 WARN| Failed to locate property: FileName ( 29.572s) [paraview ]vtkSMPropertyHelper.cxx:367 WARN| Call not supported for the current property type. ( 29.599s) [paraview ] vtkFFMPEGWriter.cxx:691 ERR| vtkFFMPEGWriter (0x5561b988b450): Please specify a filename.
I can save in others formats (tried ogv and png) but not in AVI.
My colleague tried with a full manual installation of paraview with the same flag and have the same error.
Do we have forgot something in the build ? Is it a paraview bug ?