What is the most useful method for now to convert vector SWF with upscaling to video?

What I tried:
The most useful tool is "Swivel - Flash to Video". But it has some inconveniences, such as: no interactive mode in range selection mode, it only present in recording mode and in this mode need quickly to click recording button, when playback is starting, would be better availability of autostart recording option; batch mode available from console without official documented parameters and without interactive mode; there are no others audio codecs, except mp3, aac (ffmpeg version with bad quality encoding), also no advanced parameters for video codecs. And this tool is outdated from 2013.
Another method is using capture screen, but this method is not for old hardware and can be convenient only with newer hardware for using recording without dropping frames on another virtual screen.
Also can be used FFDec tool for upscaling and conversion SWF to uncompressed video, but without sound, because of sounds can be in separated files, so they can be converted with 3d-party video converter, such as xilisoft video converter to audio format and then can be muxed with compressed video.
For a long time was some similar tools, such as: "Sothink SWF to Video Converter", "iTinySoft Magic Swf2Avi" (but 5.x version, before rebranding).