Auto Crop and Crop Preview, TS-Support

[Ruppig]

Hi, great Project! Thank you very much. After using the tool for my DVB recordings for converting to AV1 (WebM container) , it would be nice to have an auto crop feature with a video preview to check and correct the outcome. Supporting a TS-Stream as an input file would eliminate the step to use mkvtoolnix for making a MKV file.

There is also a missing *,dll Error on Windows 7