Playlist::split can result in removal of a region
(adding two others instead). In this case the state
of the removed region (if modified) is not saved.
Ardour uses some global variables and singletons. These global variables
can be initialized with a value prior to program execution (especially
if they are const), but some of the static variables are modified, and
it is crucial that they always are reset when switching to another
session. To keep things simple and explicit and consistent, we thus
introduce Temporal::reset() to reset TempoMap (and later on also the
superclock rate). This is somewhat similar to Temporal::init(), which
usually only is invoked once (on program start) to initialize singletons
(such as the TempoMap).
9964f20c added TempoMap initialization to Session::create() ... but only
when not using a template. This create method is mainly preparing the
filesystem for a new session, and TempoMap initialization doesn't seem
like a perfect fit for it. It also seemed odd that it only initialized
TempoMap for clean new sessions, while existing sessions and templates
initialized it elsewhere.
Instead, invoke the TempoMap initialization early in the Session
creation process. This might introduce an extra and unnecessary TempoMap
initialization when loading an existing session or using a template, but
that will be cheap and do no harm, while providing a guarantee that we
always use the same default value.
cut/copy section does copy the tempo-map, so copying
a 4 Bar MIDI section will be 4 Bars after the paste.
This does not work the other way around:
With a tempo-map, 4 bars may correspond to 10 seconds
at the source position. While 4 bars at the target
position may correspond to a different audio-time
duration. This can lead to gaps or overlaps.
This fixes several callsites that were passing samplepos_t to get a TempoMetric,
some of them somewhat significant (e.g. VST plugins that want tempo information).
Bad API design on my part, apologies.
This commit combines libs/ and gtk2_ardour because the new private status
of the ::metric_at() call would be a blocking point for git bisect
* Use an atomic reference count since the freeze-thread
can call use_playlist.
* Remove explicit argument to construct unused playlist
because playlists are unused by default. This also
lead to use-count becoming negative (or rather UINT32_MAX)
This fixes a random crash with stop-and-forget capture.
When aborting capture, the disk-writer can emit
midi_write_source->drop_references ()
in the butler thread, which leads to a direct call to
Session::remove_source.
This can happen before or after Region::source_deleted
is called which is initiated from the same signal.
Furthermore it was possible that Region::source deleted
was called concurrently from the UI thread via SourceRemoved
for whole file regions, which lead to memory corruption.
Record, move recorded region(s), delete the recorded source, undo.
Undo would undo the region-move, of a region that no longer
exists and has no source.
* Do not emit signal with source-lock mutex held
* explicitly drop references when called directly; notably from
EditorSources::remove_selected_sources
In case there are any unconnected tracks, the track's output is
assumed to align to the master bus (see Route::update_signal_latency).
For this to work correctly the master bus port's public latency
has to be set first.
This fixes e.g. the following issue: add a latent plugin to
the monitor section. Then toggle its bypass or remove it.
Previously the worst-case latency remained unchanged.
RCU reader returns a shared ptr to the current object which
can also be used in other places at the same time.
Sorting the shared-ptr list invalidates iterators which can
throw off other users of the same object.
This fixes a bug in PT-import which calls get_nth_audio_track().
This is mostly a simple lexical search+replace but the absence of operator< for
std::weak_ptr<T> leads to some complications, particularly with Evoral::Sequence
and ExportPortChannel.
This code presumably intended to name sources "foo%a", "foo%b" etc, but
since it was incorrectly appending the character as an integer sources
instead ended up being named "foo%97", "foo%98" etc.
Also changes the branching logic to use this branch upto 26 channels,
rather than just upto 25 channels, as that seems to have been the
intention.
After recovering from a crash, the user still needs to
retain the option to ignore the changes that were done
just before the crash after investigating them (or save them
into a snapshot).
Previously crash recovery unconditionally overwrote the
session file (see discussion on bug tracker).
Previously only adding an aux-send triggered a graph-reorder but copying
or deleting sends did nothing.
Adding/removing an aux-send may not even change the graph, but
both upstream/downstream latency can change and delaylines need to be
configured (which is done by calling update_latency_compensation with
force_whole_graph = true).
This fixes an issue with incorrect initial latency compensation after
copying a send (any later change to connections will correctly
recalculate it).
This allows to move or copy whole sections of the timline (everything
you hear) to a differnt position on the timeline.
NB. Markers and tempo-map are not yet moved, and interpolated MIDI
events are lost.
Robin Gareus
Mads Kiilerich
Paul Davis
Damien Zammit
Marijn Kruisselbrink