[request] ym file export

[rgiot]

Hello.
As your library is able to load several YM versions, it would be nice if it could export them back.
This way it could be used to convert YM6 to YM3 format.
I have a use case, where I'd like to use that https://github.com/tattlemuss/minymiser but it expects only YM3 format whereas I have YM6 files and your library was a good target to handle such conversion.
It would be nice to have such feature.
Thx

[royaltm]

The formats are not easily down-convertible, because each YM format has unique features, which aren't available in previous formats, like SID voice, or Sync Buzzer.

See details:
https://royaltm.github.io/rust-ym-file-parser/doc/ym_file_parser/struct.YmFrame.html

[rgiot]

Sure. Such conversion would fail when downgrading to a format that does not encode a feature used by the music.

[royaltm]

Another hurdle is that the YM files are internally compressed using an old LHA packer. I had to write a decompression library myself to be able to unpack those files: https://crates.io/crates/delharc
The library does not have the ability to compress files, and implementing the ancient compressing algorithm would require much bigger effort.

[rgiot]

Hmm, I never thought about that. All tools I am using works with uncompressed files