How to Use FFmpeg Filters to Jazz Up Your Audio and Video Files

V. Subhash is an invisible Indian writer, programmer and illustrator. In 2020, he wrote one of the biggest jokebooks of all time and then ended up with over two dozen mostly non-fiction books including Linux Command-Line Tips & Tricks (first paperback to have syntax highlighting in colour), CommonMark Ready Reference (the first book on CommonMark), PC Hardware Explained, Cool Electronic Projects and How To Install Solar. His book Quick Start Guide to FFmpeg was published by Apress/SpringerNature in 2023. He wrote, illustrated, designed and produced all of his books using only open-source software. Subhash has programmed in more than a dozen languages (as varied as assembly, Java and Javascript); published software for desktop (NetCheck), mobile (Subhash Browser & RSS Reader) and web (TweetsToRSS); and designed several websites. As of 2024, he is working on a portable Javascript-free CMS using plain-jane PHP and SQLite. Subhash also occasionally writes for Open Source For You magazine and CodeProject.com.