39661732c3
every write pass deletes existing tracks, which means it also deletes any existing EOT event. Rather than try to replicate the _length value() that is kept in a Source object in the SMF object, add a virtual method to SMF that returns the _length value (or std::numeric_limits<Beats>::max() if not set). If the _length value is not the max, we will add EOT events to each track (usually just one) right before writing to disk.
Please see the Ardour web site at https://ardour.org/ for all documentation..
For information on building ardour:
https://ardour.org/development.html