Use music-metadata to extract the duration

[Borewit]

Use music-metadata to determine the duration.
Works also with other audio formats.

const mm = require('music-metadata');
const metadata = await mm.parseFile(path);
// metadata.format.duration will have the duration in seconds

Good luck with your project.

[zacariec]

Hey @Borewit looks good. I have some things I need to push to master this week before I merge.
This is your own module correct?
Does it support .mp4? At the moment the .mp4 I'm getting is downloading without Meta, this might be a great work around if I can workout how to inject metadata into the file.

Thanks.

[Borewit]

MPEG-4 is supported, .m4a better than .mp4 as module is primary intended for extracting metadata audio files.
In the very latest version, I added metadata.trackInfo. This may be better suitable for video files. Note that this is experimental, and not matured yet. Which means there is room for improvement.

Give it try, and feel free to create an issue if something is missing.

Writing metadata is not something I will have implemented in the short term. I do have an hack though to manipulate MPEG-4.

[Borewit]

Any update on this PR @GPudgima?

[Borewit]

Happy Christmas, can you merge this one @raylway?