Substantive comments associated with code in Session::plan_master_strategy.
Known not to work for reverse TC. Also, the JACK related code has not yet been tested
The stereo-width panner is not generally useful. In order to
change the azimuth, width has to be reduced, which usually leads
to comb-filter artifacts.
Equal power stereo, also matches the default mono to stereo panner
better than the stereo-width panner.
Last but not least, control surfaces only have an azimuth control
knob, without an easy way to reduce width, this leaves
the panner insensitive.
Direct call to Session::cleanup_sources() from ARDOUR_UI::cleanup()
didn't zero initialize size. This centralizes initialization,
so cleanup_trash_sources() does not need to explicitly clear it.
Previously when loading Ardour v2, v3-5 sessions, tracks were
created with a dummy name "toBeResetFroXML".
In v6, Track::init() creates a playlist when the track name is
not empty. Later Track::set_state() calls set_name(). When a
playlist exists, the playlist's name is set to match the track's name.
When loading v6 sessions none of this happens. A previously loaded
playlist will be assigned by ID.
Older versions identified Playlists by name and by the time the
playlist is assigned, there may be ambiguities. With the default
(track-name = playlist-name) two playlists with the same name exist:
(1) the playlist loaded from the session file
(2) the playlist created by Track::init()
Playlists are stored in an ordered std::set<shared_ptr<Playlist>>,
and name-lookup iterates over the set.
When loading an old session after starting Ardour, it is very
likely to always lookup the playlist (1), because new, later
allocations from (2) are on top of the heap and ordered last.
The session seemingly loads correctly, except for lingering,
unused empty playlists "toBeResetFroXML" renamed to "Track name"
that were never deleted.
However when loading an old session from a running instance,
ordering is mostly random, and many tracks end up with using
the empty playlist (2) instead of the correct playlist (1).
in 5.x, we would only run the MTC parsing code if slaved to MTC. That's no longer true in 6.0, and without
this change, MTC will cause a locate at startup
This fixes issues with send-panner bypass whenever the
target bus input-count is different from the send's channel count.
--
Previously, when the aux-send panner was bypassed, data was
copied using BufferSet::read_from().
This sets the channel count of the output buffer set (here: mixbufs)
to match the input (here: bufs).
e.g. mono to stereo, "1 in -> 2 out" out was changed to "1 in -> 1 out".
Un-bypassing the panner later does not reconfigure the I/O.
Mixbufs remained mono, and PannerShell::run() "1 in -> 1 out"
does nothing. The panner was effectively not functional.
