07c370bdc9
Before, an export format with an invalid enum value (for example in the Encoding id) would crash Ardour with: unhandled exception (type std::exception) in signal handler: what: unknown enumerator FOO in PBD::EnumWriter That kind of error can happen if a new type is introduced and users switch back to versions without it. Instead, catch such exceptions while loading a format, log an error, and skip the format - similar to how other format loading errors are handled.
Please see the Ardour web site at https://ardour.org/ for all documentation..
For information on building ardour:
https://ardour.org/development.html