No such filter: 'drawtext'

The error with drawtext happens when your ffmpeg is compiled without libfreetype.

solution for mac os:

# If ffmpeg is already installed, you need to uninstall it.
brew uninstall --ignore-dependencies ffmpeg

# you may very well want to specify other options
brew install ffmpeg --with-freetype

Your ffmpeg does not support the drawtext filter. It is missing the configure option --enable-libfreetype which is required for this filter.

Download a build that has support included:

• Windows
• Linux (or compile)
• macOS (or use brew install ffmpeg --with-freetype)