Avoid generating useless symlink

[fain182]

There is a symlink in public/_next-video that is automatically created every time I start the nextjs dev server, but I suppose it's useless if you don't save your asset in the filesystem.

Maybe we could create it only when is needed?

[luwes]

That sounds reasonable to me. Happy to review a PR if you have the appetite for adding this. Cheers

[luwes]

@fain182 in your use case do you have any local video files that are processed by next-video?

because the symlink is still needed to show raw local video files in the player in the webpage before they are processed.
it's like a preview (though it can fail if the browser doesn't support the raw video format).
it's only in dev mode that the symlink is created.

[fain182]

No, only remote videos...

The thing that bothers me the most is that it creates a symlink to a folder that doesn't exist, because I save everything via API, so I don't have the videos folder...