add video audio enhancements cleaning,fade options

This Downloader program works just okay, but nothing special in the features, it is just another video downloader, not much to really stand out among all the many many free ones already in crowded market.
**It needs a  video trim feature,  so we do not have to download entire lengthy videos, & easily keep the junk parts in videos do not want.
** Along with a video/audio trimmer option, a basic *(Video fade out effect), feature mainly at end of video downloads, so do not have to use an addtl editor program,to edit and re-encode just to fade out video at end, instead of all videos ending abrubtly, which looks terrible. 
**Also, some Addtl Superhot video/audio Options could make avail even if by external Plugins, VST Effects etc)**:
--***(Video 5.1 Surr sound effect to max or boost video sound without clipping or distorting or sound effect to max or boost video sound without clipping or distorting
--(Hot Option to *Auto correct of video resolution, lighting or sound problems like others can already do.