How do I add new menu items associated with a codec module?

[jsj]

How can I add menu items (in the top menu or the context menu), based on a codec module I have written?

Based on the stream being decoded, there may be several optional features of the decoder I want to expose. Can this be done in the codec's .c file? Do I need lua to accompany my decoder?

Can anyone tell me if there are any modules doing something similar, so that I can use them as a reference?

Thanks

[Rémi Denis-Courmont]

I am not aware of any decoder providing "live" menu choices. Settings can be exposed in the preferences panel and many codecs already do so. Nevertheless the default settings should be safe and functional.