Feature request

[nanandn]

I have a couple of feature request. If there is already a way to do this, please let me. I could not see if by looking at the code.

1. Call handleChangeStatus with a new status like "media_analyzed" immediately after "generatePreview", but before calling validate. This would give an opportunity for callers to add additional metadata about the media, before validation.

2. props to override generatePreview or allow custom preview generation and maybe expose the existing generatePreview as utility. So calling code/component may provide custom preview generation or augment (maybe using mediainfo).