Lua Bindings Class Reference

This documentation is far from complete may be inaccurate and subject to change.

Overview

The top-level entry point are ARDOUR:Session and ArdourUI:Editor. Most other Classes are used indirectly starting with a Session function. e.g. Session:get_routes().

A few classes are dedicated to certain script types, e.g. Lua DSP processors have exclusive access to ARDOUR.DSP and ARDOUR:ChanMapping. Action Hooks Scripts to LuaSignal:Set etc.

Detailed documentation (parameter names, method description) is not yet available. Please stay tuned.

Short introduction to Ardour classes

Ardour's structure is object oriented. The main object is the Session. A Session contains Audio Tracks, Midi Tracks and Busses. Audio and Midi tracks are derived from a more general "Track" Object, which in turn is derived from a "Route" (aka Bus). (We say "An Audio Track is-a Track is-a Route"). Tracks contain specifics. For Example a track has-a diskstream (for file i/o).

Operations are performed on objects. One gets a reference to an object and then calls a method. e.g obj = Session:route_by_name("Audio") obj:set_name("Guitar").

Lua automatically follows C++ class inheritance. e.g one can directly call all SessionObject and Route methods on Track object. However lua does not automatically promote objects. A Route object which just happens to be a Track needs to be explicitly cast to a Track. Methods for casts are provided with each class. Note that the cast may fail and return a nil reference.

Likewise multiple inheritance is a non-trivial issue in Lua. To avoid performance penalties involved with lookups, explicit casts are required in this case. One example is ARDOUR:SessionObject which is-a StatefulDestructible which inherits from both Stateful and Destructible.

Object lifetimes are managed by the Session. Most Objects cannot be directly created, but one asks the Session to create or destroy them. This is mainly due to realtime constrains: you cannot simply remove a track that is currently processing audio. There are various factory methods for object creation or removal.

Pass by Reference

Since Lua functions are closures, C++ methods that pass arguments by reference cannot be used as-is. All parameters passed to a C++ method which uses references are returned as Lua Table. If the C++ method also returns a value it is prefixed. Two parameters are returned: the value and a Lua Table holding the parameters.

C++

void set_ref (int& var, long& val)
{
	printf ("%d %ld\n", var, val);
	var = 5;
	val = 7;
}

Lua

local var = 0;
ref = set_ref (var, 2);
-- output from C++ printf()
0 2
-- var is still 0 here
print (ref[1], ref[2])
5 7

int set_ref2 (int &var, std::string unused)
{
	var = 5;
	return 3;
}

rv, ref = set_ref2 (0, "hello");
print (rv, ref[1], ref[2])
3 5 hello

Pointer Classes

Libardour makes extensive use of reference counted boost::shared_ptr to manage lifetimes. The Lua bindings provide a complete abstraction of this. There are no pointers in Lua. For example a ARDOUR:Route is a pointer in C++, but Lua functions operate on it like it was a class instance.

shared_ptr are reference counted. Once assigned to a Lua variable, the C++ object will be kept and remains valid. It is good practice to assign references to Lua local variables or reset the variable to nil to drop the ref.

All pointer classes have a isnil () method. This is for two cases: Construction may fail. e.g. ARDOUR.LuaAPI.newplugin() may not be able to find the given plugin and hence cannot create an object.

The second case if for boost::weak_ptr. As opposed to boost::shared_ptr weak-pointers are not reference counted. The object may vanish at any time. If Lua code calls a method on a nil object, the interpreter will raise an exception and the script will not continue. This is not unlike a = nil a:test() which results in en error "attempt to index a nil value".

From the Lua side of things there is no distinction between weak and shared pointers. They behave identically. Below they're indicated in orange and have an arrow to indicate the pointer type. Pointer Classes cannot be created in Lua scripts. It always requires a call to C++ to create the Object and obtain a reference to it.

Class Documentation

ℕ ARDOUR

Methods
RCConfiguration	config ()
std::string	user_cache_directory (std::string)
	Returns the path to the directory used to store user specific caches (e.g. plugin indices, blacklist/whitelist) it defaults to XDG_CACHE_HOME
std::string	user_config_directory (int)
	user_config_directory() exists IF version was negative. version of the program. If version is negative, the build-time string PROGRAM_VERSION will be used to determine the version number. Returns the path to the directory used to store user specific configuration files for the given

↠ ARDOUR:Amp

C‡: boost::shared_ptr< ARDOUR::Amp >, boost::weak_ptr< ARDOUR::Amp >

is-a: ARDOUR:Processor

Gain Stage (Fader, Trim).

Methods
float	apply_gain (AudioBuffer&, long, long, float, float, long)
GainControl	gain_control ()
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:AsyncMIDIPort

C‡: boost::shared_ptr< ARDOUR::AsyncMIDIPort >, boost::weak_ptr< ARDOUR::AsyncMIDIPort >

is-a: ARDOUR:MidiPort

Methods
bool	isnil ()
int	write (unsigned char*, unsigned long, unsigned int)

Inherited from ARDOUR:MidiPort

Methods
MidiBuffer	get_midi_buffer (unsigned int)
bool	input_active ()
void	set_input_active (bool)
Cast
AsyncMIDIPort	to_asyncmidiport ()

Inherited from ARDOUR:Port

Methods
int	connect (std::string)
bool	connected ()
	Returns true if this port is connected to anything
bool	connected_to (std::string)
	o Port name Returns true if this port is connected to o, otherwise false.
int	disconnect (std::string)
int	disconnect_all ()
PortFlags	flags ()
	Returns flags
LuaTable(...)	get_connected_latency_range (LatencyRange&, bool)
std::string	name ()
	Returns Port short name
bool	physically_connected ()
std::string	pretty_name (bool)
	Returns Port human readable name
LatencyRange	private_latency_range (bool)
LatencyRange	public_latency_range (bool)
bool	receives_input ()
	Returns true if this Port receives input, otherwise false
bool	sends_output ()
	Returns true if this Port sends output, otherwise false
Cast
AsyncMIDIPort	to_asyncmidiport ()
AudioPort	to_audioport ()
MidiPort	to_midiport ()

↠ ARDOUR:AudioBackend

C‡: boost::shared_ptr< ARDOUR::AudioBackend >, boost::weak_ptr< ARDOUR::AudioBackend >

AudioBackend is an high-level abstraction for interacting with the operating system's audio and midi I/O.

Methods
unsigned int	buffer_size ()
std::string	device_name ()
std::string	driver_name ()
	override this if this implementation returns true from requires_driver_selection()
float	dsp_load ()
	return the fraction of the time represented by the current buffer size that is being used for each buffer process cycle, as a value from 0.0 to 1.0 E.g. if the buffer size represents 5msec and current processing takes 1msec, the returned value should be 0.2. Implementations can feel free to smooth the values returned over time (e.g. high pass filtering, or its equivalent).
DeviceStatusVector	enumerate_devices ()
	Returns a collection of DeviceStatuses identifying devices discovered by this backend since the start of the process. Any of the names in each DeviceStatus may be used to identify a device in other calls to the backend, though any of them may become invalid at any time.
StringVector	enumerate_drivers ()
	If the return value of requires_driver_selection() is true, then this function can return the list of known driver names. If the return value of requires_driver_selection() is false, then this function should not be called. If it is called its return value is an empty vector of strings.
DeviceStatusVector	enumerate_input_devices ()
	Returns a collection of DeviceStatuses identifying input devices discovered by this backend since the start of the process. Any of the names in each DeviceStatus may be used to identify a device in other calls to the backend, though any of them may become invalid at any time.
DeviceStatusVector	enumerate_output_devices ()
	Returns a collection of DeviceStatuses identifying output devices discovered by this backend since the start of the process. Any of the names in each DeviceStatus may be used to identify a device in other calls to the backend, though any of them may become invalid at any time.
AudioBackendInfo	info ()
	Return the AudioBackendInfo object from which this backend was constructed.
unsigned int	input_channels ()
std::string	input_device_name ()
bool	isnil ()
unsigned int	output_channels ()
std::string	output_device_name ()
unsigned int	period_size ()
float	sample_rate ()
int	set_buffer_size (unsigned int)
	Set the buffer size to be used. The device is assumed to use a double buffering scheme, so that one buffer's worth of data can be processed by hardware while software works on the other buffer. All known suitable audio APIs support this model (though ALSA allows for alternate numbers of buffers, and CoreAudio doesn't directly expose the concept).
int	set_device_name (std::string)
	Set the name of the device to be used
int	set_driver (std::string)
	Returns zero if the backend can successfully use `drivername` as the driver, non-zero otherwise. Should not be used unless the backend returns true from requires_driver_selection()
int	set_input_device_name (std::string)
	Set the name of the input device to be used if using separate input/output devices. use_separate_input_and_output_devices()
int	set_output_device_name (std::string)
	Set the name of the output device to be used if using separate input/output devices. use_separate_input_and_output_devices()
int	set_peridod_size (unsigned int)
	Set the period size to be used. must be called before starting the backend.
int	set_sample_rate (float)
	Set the sample rate to be used
bool	use_separate_input_and_output_devices ()
	An optional alternate interface for backends to provide a facility to select separate input and output devices. If a backend returns true then enumerate_input_devices() and enumerate_output_devices() will be used instead of enumerate_devices() to enumerate devices. Similarly set_input/output_device_name() should be used to set devices instead of set_device_name().

∁ ARDOUR:AudioBackendInfo

C‡: ARDOUR::AudioBackendInfo

Data Members
char*	name

∁ ARDOUR:AudioBuffer

C‡: ARDOUR::AudioBuffer

Buffer containing audio data.

Methods
void	apply_gain (float, long)
	Apply a fixed gain factor to the audio buffer gain gain factor len number of samples to amplify
bool	check_silence (unsigned int, unsigned int&)
	Check buffer for silence nframes number of samples to check n first non zero sample (if any) Returns true if all samples are zero
FloatArray	data (long)
void	read_from (FloatArray, long, long, long)
void	silence (long, long)
	silence buffer len number of samples to clear offset start offset

∁ ARDOUR:AudioEngine

C‡: ARDOUR::AudioEngine

is-a: ARDOUR:PortManager

Methods
BackendVector	available_backends ()
std::string	current_backend_name ()
bool	freewheeling ()
float	get_dsp_load ()
std::string	get_last_backend_error ()
long	processed_samples ()
bool	running ()
AudioBackend	set_backend (std::string, std::string, std::string)
int	set_buffer_size (unsigned int)
int	set_device_name (std::string)
int	set_sample_rate (float)
bool	setup_required ()
int	start (bool)
int	stop (bool)

Inherited from ARDOUR:PortManager

Methods
int	connect (std::string, std::string)
bool	connected (std::string)
int	disconnect (std::string, std::string)
int	disconnect_port (Port)
LuaTable(int, ...)	get_backend_ports (std::string, DataType, PortFlags, StringVector&)
LuaTable(int, ...)	get_connections (std::string, StringVector&)
void	get_physical_inputs (DataType, StringVector&, MidiPortFlags, MidiPortFlags)
void	get_physical_outputs (DataType, StringVector&, MidiPortFlags, MidiPortFlags)
Port	get_port_by_name (std::string)
	name Full or short name of port Returns Corresponding Port or 0.
LuaTable(int, ...)	get_ports (DataType, PortList&)
std::string	get_pretty_name_by_name (std::string)
ChanCount	n_physical_inputs ()
ChanCount	n_physical_outputs ()
bool	physically_connected (std::string)
PortEngine	port_engine ()
bool	port_is_physical (std::string)
void	reset_input_meters ()

↠ ARDOUR:AudioPlaylist

C‡: boost::shared_ptr< ARDOUR::AudioPlaylist >, boost::weak_ptr< ARDOUR::AudioPlaylist >

is-a: ARDOUR:Playlist

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
bool	isnil ()
long	read (FloatArray, FloatArray, FloatArray, long, long, unsigned int)
	start Start position in session samples. cnt Number of samples to read.

Inherited from ARDOUR:Playlist

Methods
void	add_region (Region, long, float, bool, int, double, bool)
	Note: this calls set_layer (..., DBL_MAX) so it will reset the layering index of region
Region	combine (RegionList)
unsigned int	count_regions_at (long)
Playlist	cut (AudioRangeList&, bool)
DataType	data_type ()
void	duplicate (Region, long, long, float)
	gap from the beginning of the region to the next beginning
void	duplicate_range (AudioRange&, float)
void	duplicate_until (Region, long, long, long)
	gap from the beginning of the region to the next beginning end the first sample that does _not_ contain a duplicated sample
bool	empty ()
Region	find_next_region (long, RegionPoint, int)
long	find_next_region_boundary (long, int)
long	find_next_transient (long, int)
ID	get_orig_track_id ()
bool	hidden ()
void	lower_region (Region)
void	lower_region_to_bottom (Region)
unsigned int	n_regions ()
void	raise_region (Region)
void	raise_region_to_top (Region)
Region	region_by_id (ID)
RegionListPtr	region_list ()
RegionListPtr	regions_at (long)
RegionListPtr	regions_touched (long, long)
	start Range start. end Range end. Returns regions which have some part within this range.
RegionListPtr	regions_with_end_within (Range)
RegionListPtr	regions_with_start_within (Range)
void	remove_region (Region)
bool	set_name (std::string)
bool	shared ()
void	split_region (Region, MusicSample)
Region	top_region_at (long)
Region	top_unmuted_region_at (long)
void	uncombine (Region)
bool	used ()
Cast
AudioPlaylist	to_audioplaylist ()
MidiPlaylist	to_midiplaylist ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:AudioPort

C‡: boost::shared_ptr< ARDOUR::AudioPort >, boost::weak_ptr< ARDOUR::AudioPort >

is-a: ARDOUR:Port

Methods
bool	isnil ()

Inherited from ARDOUR:Port

Methods
int	connect (std::string)
bool	connected ()
	Returns true if this port is connected to anything
bool	connected_to (std::string)
	o Port name Returns true if this port is connected to o, otherwise false.
int	disconnect (std::string)
int	disconnect_all ()
PortFlags	flags ()
	Returns flags
LuaTable(...)	get_connected_latency_range (LatencyRange&, bool)
std::string	name ()
	Returns Port short name
bool	physically_connected ()
std::string	pretty_name (bool)
	Returns Port human readable name
LatencyRange	private_latency_range (bool)
LatencyRange	public_latency_range (bool)
bool	receives_input ()
	Returns true if this Port receives input, otherwise false
bool	sends_output ()
	Returns true if this Port sends output, otherwise false
Cast
AsyncMIDIPort	to_asyncmidiport ()
AudioPort	to_audioport ()
MidiPort	to_midiport ()

∁ ARDOUR:AudioPortMeters

C‡: std::map<std::string, ARDOUR::PortManager::DPM >

Constructor
ℂ	ARDOUR.AudioPortMeters ()
Methods
LuaTable	add (std::string, ARDOUR::PortManager::DPM )
...	at (--lua--)
void	clear ()
unsigned long	count (std::string)
bool	empty ()
LuaIter	iter ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:AudioRange

C‡: ARDOUR::AudioRange

Constructor
ℂ	ARDOUR.AudioRange (long, long, unsigned int)
Methods
bool	equal (AudioRange)
long	length ()
Data Members
long	_end
unsigned int	id
long	start

∁ ARDOUR:AudioRangeList

C‡: std::list<ARDOUR::AudioRange >

Constructor
ℂ	ARDOUR.AudioRangeList ()
Methods
AudioRange	back ()
bool	empty ()
AudioRange	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

↠ ARDOUR:AudioRegion

C‡: boost::shared_ptr< ARDOUR::AudioRegion >, boost::weak_ptr< ARDOUR::AudioRegion >

is-a: ARDOUR:Region

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
AudioSource	audio_source (unsigned int)
AutomationList	envelope ()
bool	envelope_active ()
bool	fade_in_active ()
bool	fade_out_active ()
bool	isnil ()
double	maximum_amplitude (Progress)
	Returns the maximum (linear) amplitude of the region, or a -ve number if the Progress object reports that the process was cancelled.
double	rms (Progress)
	Returns the maximum (rms) signal power of the region, or a -1 if the Progress object reports that the process was cancelled.
float	scale_amplitude ()
LuaTable(int, ...)	separate_by_channel (RegionVector&)
void	set_envelope_active (bool)
void	set_fade_in_active (bool)
void	set_fade_in_length (long)
void	set_fade_in_shape (FadeShape)
void	set_fade_out_active (bool)
void	set_fade_out_length (long)
void	set_fade_out_shape (FadeShape)
void	set_scale_amplitude (float)

Inherited from ARDOUR:Region

Methods
bool	at_natural_position ()
bool	automatic ()
bool	can_move ()
bool	captured ()
void	captured_xruns (XrunPositions&, bool)
void	clear_sync_position ()
Control	control (Parameter, bool)
bool	covers (long)
void	cut_end (long, int)
void	cut_front (long, int)
DataType	data_type ()
bool	external ()
bool	has_transients ()
bool	hidden ()
bool	import ()
bool	is_compound ()
unsigned int	layer ()
long	length ()
bool	locked ()
void	lower ()
void	lower_to_bottom ()
StringVector	master_source_names ()
SourceList	master_sources ()
void	move_start (long, int)
void	move_to_natural_position ()
bool	muted ()
unsigned int	n_channels ()
void	nudge_position (long)
bool	opaque ()
Playlist	playlist ()
long	position ()
	How the region parameters play together: POSITION: first sample of the region along the timeline START: first sample of the region within its source(s) LENGTH: number of samples the region represents
bool	position_locked ()
double	quarter_note ()
void	raise ()
void	raise_to_top ()
void	set_hidden (bool)
void	set_initial_position (long)
	A gui may need to create a region, then place it in an initial position determined by the user. When this takes place within one gui operation, we have to reset _last_position to prevent an implied move.
void	set_length (long, int)
void	set_locked (bool)
void	set_muted (bool)
bool	set_name (std::string)
	Note: changing the name of a Region does not constitute an edit
void	set_opaque (bool)
void	set_position (long, int)
void	set_position_locked (bool)
void	set_start (long)
void	set_sync_position (long)
	Set the region's sync point. absolute_pos Session time.
void	set_video_locked (bool)
float	shift ()
Source	source (unsigned int)
long	start ()
float	stretch ()
bool	sync_marked ()
LuaTable(long, ...)	sync_offset (int&)
long	sync_position ()
	Returns Sync position in session time
Int64List	transients ()
void	trim_end (long, int)
void	trim_front (long, int)
void	trim_to (long, long, int)
bool	video_locked ()
bool	whole_file ()
Cast
AudioRegion	to_audioregion ()
MidiRegion	to_midiregion ()
Readable	to_readable ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:AudioRom

C‡: boost::shared_ptr< ARDOUR::AudioRom >, boost::weak_ptr< ARDOUR::AudioRom >

is-a: ARDOUR:Readable

Methods
bool	isnil ()
AudioRom	new_rom (FloatArray, unsigned long)

Inherited from ARDOUR:Readable

Methods
ReadableList	load (Session&, std::string)
unsigned int	n_channels ()
long	read (FloatArray, long, long, int)
long	readable_length ()

↠ ARDOUR:AudioSource

C‡: boost::shared_ptr< ARDOUR::AudioSource >, boost::weak_ptr< ARDOUR::AudioSource >

is-a: ARDOUR:Source

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
std::string	captured_for ()
bool	empty ()
bool	isnil ()
bool	isnil ()
long	length (long)
unsigned int	n_channels ()
unsigned int	n_channels ()
long	read (FloatArray, long, long, int)
long	readable_length ()
long	readable_length ()
float	sample_rate ()
Cast
Readable	to_readable ()

Inherited from ARDOUR:Source

Methods
std::string	ancestor_name ()
bool	can_be_analysed ()
XrunPositions	captured_xruns ()
bool	has_been_analysed ()
long	natural_position ()
long	timeline_position ()
long	timestamp ()
int	use_count ()
bool	used ()
bool	writable ()
Cast
AudioSource	to_audiosource ()
FileSource	to_filesource ()
MidiSource	to_midisource ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:AudioTrack

C‡: boost::shared_ptr< ARDOUR::AudioTrack >, boost::weak_ptr< ARDOUR::AudioTrack >

is-a: ARDOUR:Track

A track is an route (bus) with a recordable diskstream and related objects relevant to recording, playback and editing.

Specifically a track has a playlist object that describes material to be played from disk, and modifies that object during recording and editing.

Methods
bool	isnil ()

Inherited from ARDOUR:Track

Methods
Region	bounce (InterThreadInfo&, std::string)
	bounce track from session start to session end to new region itt asynchronous progress report and cancel Returns a new audio region (or nil in case of error)
Region	bounce_range (long, long, InterThreadInfo&, Processor, bool, std::string)
	Bounce the given range to a new audio region. start start time (in samples) end end time (in samples) itt asynchronous progress report and cancel endpoint the processor to tap the signal off (or nil for the top) include_endpoint include the given processor in the bounced audio. Returns a new audio region (or nil in case of error)
bool	bounceable (Processor, bool)
	Test if the track can be bounced with the given settings. If sends/inserts/returns are present in the signal path or the given track has no audio outputs bouncing is not possible. endpoint the processor to tap the signal off (or nil for the top) include_endpoint include the given processor in the bounced audio. Returns true if the track can be bounced, or false otherwise.
bool	can_record ()
int	find_and_use_playlist (DataType, ID)
Playlist	playlist ()
bool	set_name (std::string)
int	use_copy_playlist ()
int	use_new_playlist (DataType)
int	use_playlist (DataType, Playlist, bool)
Cast
AudioTrack	to_audio_track ()
MidiTrack	to_midi_track ()

Inherited from ARDOUR:Route

Methods
bool	active ()
int	add_aux_send (Route, Processor)
	Add an aux send to a route. route route to send to. before Processor to insert before, or 0 to insert at the end.
int	add_foldback_send (Route, bool)
int	add_processor_by_index (Processor, int, ProcessorStreams, bool)
	Add a processor to a route such that it ends up with a given index into the visible processors. index Index to add the processor at, or -1 to add at the end of the list. Returns 0 on success, non-0 on failure.
bool	add_sidechain (Processor)
Amp	amp ()
std::string	comment ()
bool	customize_plugin_insert (Processor, unsigned int, ChanCount, ChanCount)
	enable custom plugin-insert configuration proc Processor to customize count number of plugin instances to use (if zero, reset to default) outs output port customization sinks input pins for variable-I/O plugins Returns true if successful
DataType	data_type ()
IO	input ()
Delivery	main_outs ()
	the signal processorat at end of the processing chain which produces output
MonitorControl	monitoring_control ()
MonitorState	monitoring_state ()
bool	muted ()
ChanCount	n_inputs ()
ChanCount	n_outputs ()
Processor	nth_plugin (unsigned int)
Processor	nth_processor (unsigned int)
Processor	nth_send (unsigned int)
IO	output ()
PannerShell	panner_shell ()
PeakMeter	peak_meter ()
	*********************************************************** Pure interface begins here***********************************************************
long	playback_latency (bool)
int	remove_processor (Processor, ProcessorStreams, bool)
	remove plugin/processor proc processor to remove err error report (index where removal vailed, channel-count why it failed) may be nil need_process_lock if locking is required (set to true, unless called from RT context with lock) Returns 0 on success
int	remove_processors (ProcessorList, ProcessorStreams)
bool	remove_sidechain (Processor)
int	reorder_processors (ProcessorList, ProcessorStreams)
int	replace_processor (Processor, Processor, ProcessorStreams)
	replace plugin/processor with another old processor to remove sub processor to substitute the old one with err error report (index where removal vailed, channel-count why it failed) may be nil Returns 0 on success
bool	reset_plugin_insert (Processor)
	reset plugin-insert configuration to default, disable customizations. This is equivalent to calling customize_plugin_insert (proc, 0, unused) proc Processor to reset Returns true if successful
void	set_active (bool, void*)
void	set_comment (std::string, void*)
void	set_meter_point (MeterPoint)
bool	set_strict_io (bool)
long	signal_latency ()
bool	soloed ()
bool	strict_io ()
Processor	the_instrument ()
	Return the first processor that accepts has at least one MIDI input and at least one audio output. In the vast majority of cases, this will be "the instrument". This does not preclude other MIDI->audio processors later in the processing chain, but that would be a special case not covered by this utility function.
Amp	trim ()
Cast
Track	to_track ()

Inherited from ARDOUR:Stripable

Methods
AutomationControl	comp_enable_controllable ()
AutomationControl	comp_makeup_controllable ()
AutomationControl	comp_mode_controllable ()
std::string	comp_mode_name (unsigned int)
ReadOnlyControl	comp_redux_controllable ()
AutomationControl	comp_speed_controllable ()
std::string	comp_speed_name (unsigned int)
AutomationControl	comp_threshold_controllable ()
unsigned int	eq_band_cnt ()
std::string	eq_band_name (unsigned int)
AutomationControl	eq_enable_controllable ()
AutomationControl	eq_freq_controllable (unsigned int)
AutomationControl	eq_gain_controllable (unsigned int)
AutomationControl	eq_q_controllable (unsigned int)
AutomationControl	eq_shape_controllable (unsigned int)
AutomationControl	filter_enable_controllable (bool)
AutomationControl	filter_freq_controllable (bool)
AutomationControl	filter_slope_controllable (bool)
GainControl	gain_control ()
bool	is_auditioner ()
bool	is_hidden ()
bool	is_master ()
bool	is_monitor ()
bool	is_private_route ()
bool	is_selected ()
AutomationControl	master_send_enable_controllable ()
MonitorProcessor	monitor_control ()
MuteControl	mute_control ()
AutomationControl	pan_azimuth_control ()
AutomationControl	pan_elevation_control ()
AutomationControl	pan_frontback_control ()
AutomationControl	pan_lfe_control ()
AutomationControl	pan_width_control ()
PhaseControl	phase_control ()
PresentationInfo	presentation_info_ptr ()
AutomationControl	rec_enable_control ()
AutomationControl	rec_safe_control ()
AutomationControl	send_enable_controllable (unsigned int)
AutomationControl	send_level_controllable (unsigned int)
std::string	send_name (unsigned int)
AutomationControl	send_pan_azimuth_controllable (unsigned int)
AutomationControl	send_pan_azimuth_enable_controllable (unsigned int)
void	set_presentation_order (unsigned int)
bool	slaved ()
bool	slaved_to (VCA)
SoloControl	solo_control ()
SoloIsolateControl	solo_isolate_control ()
SoloSafeControl	solo_safe_control ()
GainControl	trim_control ()
Cast
Automatable	to_automatable ()
Route	to_route ()
Slavable	to_slavable ()
VCA	to_vca ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:AudioTrackList

C‡: std::list<boost::shared_ptr<ARDOUR::AudioTrack> >

Constructor
ℂ	ARDOUR.AudioTrackList ()
Methods
LuaTable	add (LuaTable {AudioTrack})
AudioTrack	back ()
bool	empty ()
AudioTrack	front ()
LuaIter	iter ()
void	push_back (AudioTrack)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

↠ ARDOUR:Automatable

C‡: boost::shared_ptr< ARDOUR::Automatable >, boost::weak_ptr< ARDOUR::Automatable >

is-a: Evoral:ControlSet

Methods
ParameterList	all_automatable_params ()
	API for Lua binding
AutomationControl	automation_control (Parameter, bool)
bool	isnil ()
Cast
Slavable	to_slavable ()

↠ ARDOUR:AutomatableSequence

C‡: boost::shared_ptr< ARDOUR::AutomatableSequence<Temporal::Beats> >, boost::weak_ptr< ARDOUR::AutomatableSequence<Temporal::Beats> >

is-a: ARDOUR:Automatable

Methods
bool	isnil ()
Cast
Sequence	to_sequence ()

Inherited from ARDOUR:Automatable

Methods
ParameterList	all_automatable_params ()
	API for Lua binding
AutomationControl	automation_control (Parameter, bool)
Cast
Slavable	to_slavable ()

↠ ARDOUR:AutomationControl

C‡: boost::shared_ptr< ARDOUR::AutomationControl >, boost::weak_ptr< ARDOUR::AutomationControl >

is-a: PBD:Controllable

A PBD::Controllable with associated automation data (AutomationList)

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
bool	isnil ()
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:AutomationList

C‡: boost::shared_ptr< ARDOUR::AutomationList >, boost::weak_ptr< ARDOUR::AutomationList >

is-a: Evoral:ControlList

AutomationList is a stateful wrapper around Evoral::ControlList. It includes session-specifics (such as automation state), control logic (e.g. touch, signals) and acts as proxy to the underlying ControlList which holds the actual data.

Methods
XMLNode	get_state ()
bool	isnil ()
Command	memento_command (XMLNode, XMLNode)
bool	touch_enabled ()
bool	touching ()
bool	writing ()
Cast
ControlList	list ()
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

Inherited from Evoral:ControlList

Methods
void	add (double, double, bool, bool)
	Add an event to this list. This method is intended to write automation in realtime. If the transport is stopped, guard-points will be added regardless of parameter with_guards. when absolute time in samples value parameter value with_guards if true, add guard-points with_initial if true, add an initial point if the list is empty
void	clear (double, double)
	Remove all events in the given time range from this list. start start of range (inclusive) in audio samples end end of range (inclusive) in audio samples
void	clear_list ()
bool	editor_add (double, double, bool)
	Add an event to this list. This method is intended for making manual changes from the GUI. An event will only be created if no other event exists at the given time. when absolute time in samples value parameter value with_guards if true, add guard-points Returns true if an event was added.
double	eval (double)
	Queries the event value at the given time (takes a read-lock, not safe while writing automation). where absolute time in samples Returns parameter value
EventList	events ()
	Returns the list of events
bool	in_write_pass ()
	Returns true if transport is running and this list is in write mode
InterpolationStyle	interpolation ()
	query interpolation style of the automation data Returns Interpolation Style
LuaTable(double, ...)	rt_safe_eval (double, bool&)
	Realtime safe version of eval(). This may fail if a read-lock cannot be taken. where absolute time in samples ok boolean reference if returned value is valid Returns parameter value
bool	set_interpolation (InterpolationStyle)
	Sets the interpolation style of the automation data. This will fail when asking for Logarithmic scale and min,max crosses 0 or Exponential scale with min != 0. is interpolation style Returns true if style change was successful
unsigned long	size ()
void	thin (double)
	Thin the number of events in this list. The thinning factor corresponds to the area of a triangle computed between three points in the list (time-difference * value-difference). If the area is large, it indicates significant non-linearity between the points. Time is measured in samples, value is usually normalized to 0..1. During automation recording we thin the recorded points using this value. If a point is sufficiently co-linear with its neighbours (as defined by the area of the triangle formed by three of them), we will not include it in the list. The larger the value, the more points are excluded, so this effectively measures the amount of thinning to be done. thinning_factor area-size (default: 20)
void	truncate_end (double)
	Remove all events after the given time from this list. last_coordinate time in audio samples of the last event to keep
void	truncate_start (double)
	Remove all events up to to the given time from this list. overall_length overall length in audio samples
Cast
AutomationList	to_automationlist ()

∁ ARDOUR:BackendVector

C‡: std::vector<ARDOUR::AudioBackendInfo const* >

Constructor
ℂ	ARDOUR.BackendVector ()
Methods
AudioBackendInfo	at (unsigned long)
bool	empty ()
LuaIter	iter ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:BeatsSamplesConverter

C‡: ARDOUR::BeatsSamplesConverter

Converter between quarter-note beats and samples. Takes distances in quarter-note beats or samples from some origin (supplied to the constructor in samples), and converts them to the opposite unit, taking tempo changes into account.

Constructor
ℂ	ARDOUR.BeatsSamplesConverter (TempoMap, long)
Methods
Beats	from (long)
	Convert B time to A time (A from B)
long	to (Beats)
	Convert A time to B time (A to B)

∁ ARDOUR:BufferSet

C‡: ARDOUR::BufferSet

A set of buffers of various types.

These are mainly accessed from Session and passed around as scratch buffers (eg as parameters to run() methods) to do in-place signal processing.

There are two types of counts associated with a BufferSet - available, and the 'use count'. Available is the actual number of allocated buffers (and so is the maximum acceptable value for the use counts).

The use counts are how things determine the form of their input and inform others the form of their output (eg what they did to the BufferSet). Setting the use counts is realtime safe.

Methods
ChanCount	available ()
ChanCount	count ()
AudioBuffer	get_audio (unsigned long)
MidiBuffer	get_midi (unsigned long)

↠ ARDOUR:Bundle

C‡: boost::shared_ptr< ARDOUR::Bundle >, boost::weak_ptr< ARDOUR::Bundle >

A set of `channels', each of which is associated with 0 or more ports. Each channel has a name which can be anything useful, and a data type. Intended for grouping things like, for example, a buss' outputs. `Channel' is a rather overloaded term but I can't think of a better one right now.

Methods
std::string	channel_name (unsigned int)
	ch Channel. Returns Channel name.
bool	isnil ()
unsigned int	n_total ()
std::string	name ()
	Returns Bundle name
ChanCount	nchannels ()
	Returns Number of channels that this Bundle has
bool	ports_are_inputs ()
bool	ports_are_outputs ()
Cast
UserBundle	to_userbundle ()

∁ ARDOUR:BundleListPtr

C‡: boost::shared_ptr<std::vector<boost::shared_ptr<ARDOUR::Bundle> > >

Constructor
ℂ	ARDOUR.BundleListPtr ()
Methods
LuaTable	add (LuaTable {Bundle})
Bundle	at (unsigned long)
bool	empty ()
LuaIter	iter ()
void	push_back (Bundle)
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:ChanCount

C‡: ARDOUR::ChanCount

A count of channels, possibly with many types.

Operators are defined so this may safely be used as if it were a simple (single-typed) integer count of channels.

Constructor
ℂ	ARDOUR.ChanCount (DataType, unsigned int)
	Convenience constructor for making single-typed streams (mono, stereo, midi, etc) type data type count number of channels
Methods
unsigned int	get (DataType)
	query channel count for given type t data type Returns channel count for given type
unsigned int	n_audio ()
	query number of audio channels Returns number of audio channels
unsigned int	n_midi ()
	query number of midi channels Returns number of midi channels
unsigned int	n_total ()
	query total channel count of all data types Returns total channel count (audio + midi)
void	reset ()
	zero count of all data types
void	set (DataType, unsigned int)
	set channel count for given type t data type count number of channels
void	set_audio (unsigned int)
	set number of audio channels a number of audio channels
void	set_midi (unsigned int)
	set number of audio channels m number of midi channels

∁ ARDOUR:ChanMapping

C‡: ARDOUR::ChanMapping

A mapping from one set of channels to another. The general form is 1 source (from), many sinks (to). numeric IDs are used to identify sources and sinks.

for plugins this is used to map "plugin-pin" to "audio-buffer"

Constructor
ℂ	ARDOUR.ChanMapping ()
Methods
ChanCount	count ()
unsigned int	get (DataType, unsigned int)
	get buffer mapping for given data type and pin type data type from numeric source id Returns mapped buffer number (or ChanMapping::Invalid)
bool	is_monotonic ()
	Test if this mapping is monotonic (useful to see if inplace processing is feasible) Returns true if the map is a strict monotonic set
unsigned int	n_total ()
void	set (DataType, unsigned int, unsigned int)
	set buffer mapping for given data type type data type from numeric source id to buffer

∁ ARDOUR:ControlList

C‡: std::list<boost::shared_ptr<ARDOUR::AutomationControl> >

Constructor
ℂ	ARDOUR.ControlList ()
Methods
LuaTable	add (LuaTable {AutomationControl})
AutomationControl	back ()
bool	empty ()
AutomationControl	front ()
LuaIter	iter ()
void	push_back (AutomationControl)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

∁ ARDOUR:ControlListPtr

C‡: boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::AutomationControl> > >

Constructor
ℂ	ARDOUR.ControlListPtr ()
Methods
LuaTable	add (LuaTable {AutomationControl})
bool	empty ()
LuaIter	iter ()
void	push_back (AutomationControl)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

ℕ ARDOUR.DSP

Methods
float	accurate_coefficient_to_dB (float)
void	apply_gain_to_buffer (FloatArray, unsigned int, float)
float	compute_peak (FloatArray, unsigned int, float)
void	copy_vector (FloatArray, FloatArray, unsigned int)
float	dB_to_coefficient (float)
float	fast_coefficient_to_dB (float)
void	find_peaks (FloatArray, unsigned int, FloatArray, FloatArray)
float	log_meter (float)
	non-linear power-scale meter deflection power signal power (dB) Returns deflected value
float	log_meter_coeff (float)
	non-linear power-scale meter deflection coeff signal value Returns deflected value
void	memset (FloatArray, float, unsigned int)
	lua wrapper to memset()
void	mix_buffers_no_gain (FloatArray, FloatArray, unsigned int)
void	mix_buffers_with_gain (FloatArray, FloatArray, unsigned int, float)
void	mmult (FloatArray, FloatArray, unsigned int)
	matrix multiply multiply every sample of `data' with the corresponding sample at `mult'. data multiplicand mult multiplicand n_samples number of samples in data and mmult
LuaTable(...)	peaks (FloatArray, float&, float&, unsigned int)
void	process_map (BufferSet, ChanCount, ChanMapping, ChanMapping, unsigned int, long)

∁ ARDOUR:DSP:Biquad

C‡: ARDOUR::DSP::Biquad

Biquad Filter

Constructor
ℂ	ARDOUR.DSP.Biquad (double)
	Instantiate Biquad Filter samplerate Samplerate
Methods
void	compute (Type, double, double, double)
	setup filter, compute coefficients t filter type (LowPass, HighPass, etc) freq filter frequency Q filter quality gain filter gain
void	configure (double, double, double, double, double)
	setup filter, set coefficients directly
float	dB_at_freq (float)
	filter transfer function (filter response for spectrum visualization) freq frequency Returns gain at given frequency in dB (clamped to -120..+120)
void	reset ()
	reset filter state
void	run (FloatArray, unsigned int)
	process audio data data pointer to audio-data n_samples number of samples to process

∁ ARDOUR:DSP:Convolution

C‡: ARDOUR::DSP::Convolution

Constructor
ℂ	ARDOUR.DSP.Convolution (Session&, unsigned int, unsigned int)
Methods
bool	add_impdata (unsigned int, unsigned int, Readable, float, unsigned int, long, long, unsigned int)
unsigned int	latency ()
unsigned int	n_inputs ()
unsigned int	n_outputs ()
bool	ready ()
void	restart ()
void	run (BufferSet&, ChanMapping, ChanMapping, unsigned int, long)

∁ ARDOUR:DSP:Convolver

C‡: ARDOUR::DSP::Convolver

is-a: ARDOUR:DSP:Convolution

Constructor
ℂ	ARDOUR.DSP.Convolver (Session&, std::string, IRChannelConfig, IRSettings)
Methods
void	run_mono_buffered (FloatArray, unsigned int)
void	run_mono_no_latency (FloatArray, unsigned int)
void	run_stereo_buffered (FloatArray, FloatArray, unsigned int)
void	run_stereo_no_latency (FloatArray, FloatArray, unsigned int)

Inherited from ARDOUR:DSP:Convolution

Constructor
ℂ	ARDOUR.DSP.Convolution (Session&, unsigned int, unsigned int)
Methods
bool	add_impdata (unsigned int, unsigned int, Readable, float, unsigned int, long, long, unsigned int)
unsigned int	latency ()
unsigned int	n_inputs ()
unsigned int	n_outputs ()
bool	ready ()
void	restart ()
void	run (BufferSet&, ChanMapping, ChanMapping, unsigned int, long)

∁ ARDOUR:DSP:DspShm

C‡: ARDOUR::DSP::DspShm

C/C++ Shared Memory

A convenience class representing a C array of float[] or int32_t[] data values. This is useful for lua scripts to perform DSP operations directly using C/C++ with CPU Hardware acceleration.

Access to this memory area is always 4 byte aligned. The data is interpreted either as float or as int.

This memory area can also be shared between different instances or the same lua plugin (DSP, GUI).

Since memory allocation is not realtime safe it should be allocated during dsp_init() or dsp_configure(). The memory is free()ed automatically when the lua instance is destroyed.

Constructor
ℂ	ARDOUR.DSP.DspShm (unsigned long)
Methods
void	allocate (unsigned long)
	[re] allocate memory in host's memory space s size, total number of float or integer elements to store.
int	atomic_get_int (unsigned long)
	atomically read integer at offset This involves a memory barrier. This call is intended for buffers which are shared with another instance. off offset in shared memory region Returns value at offset
void	atomic_set_int (unsigned long, int)
	atomically set integer at offset This involves a memory barrier. This call is intended for buffers which are shared with another instance. off offset in shared memory region val value to set
void	clear ()
	clear memory (set to zero)
FloatArray	to_float (unsigned long)
	access memory as float array off offset in shared memory region Returns float[]
IntArray	to_int (unsigned long)
	access memory as integer array off offset in shared memory region Returns int_32_t[]

∁ ARDOUR:DSP:FFTSpectrum

C‡: ARDOUR::DSP::FFTSpectrum

Constructor
ℂ	ARDOUR.DSP.FFTSpectrum (unsigned int, double)
Methods
void	execute ()
	process current data in buffer
float	freq_at_bin (unsigned int)
float	power_at_bin (unsigned int, float)
	query bin the frequency bin 0 .. window_size / 2 norm gain factor (set equal to `bin` for 1/f normalization) Returns signal power at given bin (in dBFS)
void	set_data_hann (FloatArray, unsigned int, unsigned int)

∁ ARDOUR:DSP:Generator

C‡: ARDOUR::DSP::Generator

Constructor
ℂ	ARDOUR.DSP.Generator ()
Methods
void	run (FloatArray, unsigned int)
void	set_type (Type)

∁ ARDOUR:DSP:IRSettings

C‡: ARDOUR::DSP::Convolver::IRSettings

Constructor
ℂ	ARDOUR.DSP.IRSettings ()
Methods
unsigned int	get_channel_delay (unsigned int)
float	get_channel_gain (unsigned int)
void	set_channel_delay (unsigned int, unsigned int)
void	set_channel_gain (unsigned int, float)
Data Members
float	gain
unsigned int	pre_delay

∁ ARDOUR:DSP:LTCReader

C‡: ARDOUR::LTCReader

Constructor
ℂ	ARDOUR.DSP.LTCReader (int, LTC_TV_STANDARD)
Methods
LuaTable(long, ...)	read (unsigned int&, unsigned int&, unsigned int&, unsigned int&)
void	write (FloatArray, long, long)

∁ ARDOUR:DSP:LowPass

C‡: ARDOUR::DSP::LowPass

1st order Low Pass filter

Constructor
ℂ	ARDOUR.DSP.LowPass (double, float)
	instantiate a LPF samplerate samplerate freq cut-off frequency
Methods
void	ctrl (FloatArray, float, unsigned int)
	filter control data This is useful for parameter smoothing. data pointer to control-data array val target value n_samples array length
void	proc (FloatArray, unsigned int)
	process audio data data pointer to audio-data n_samples number of samples to process
void	reset ()
	reset filter state
void	set_cutoff (float)
	update filter cut-off frequency freq cut-off frequency

∁ ARDOUR:DataType

C‡: ARDOUR::DataType

A type of Data Ardour is capable of processing.

The majority of this class is dedicated to conversion to and from various other type representations, simple comparison between then, etc. This code is deliberately 'ugly' so other code doesn't have to be.

Constructor
ℂ	ARDOUR.DataType (std::string)
Methods
DataType	audio ()
	convenience constructor for DataType::AUDIO with managed lifetime Returns DataType::AUDIO
DataType	midi ()
	convenience constructor for DataType::MIDI with managed lifetime Returns DataType::MIDI
DataType	null ()
	convenience constructor for DataType::NIL with managed lifetime Returns DataType::NIL
char*	to_string ()
	Inverse of the from-string constructor

↠ ARDOUR:DelayLine

C‡: boost::shared_ptr< ARDOUR::DelayLine >, boost::weak_ptr< ARDOUR::DelayLine >

is-a: ARDOUR:Processor

Meters peaks on the input and stores them for access.

Methods
long	delay ()
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:Delivery

C‡: boost::shared_ptr< ARDOUR::Delivery >, boost::weak_ptr< ARDOUR::Delivery >

is-a: ARDOUR:IOProcessor

A mixer strip element (Processor) with 1 or 2 IO elements.

Methods
bool	isnil ()
PannerShell	panner_shell ()

Inherited from ARDOUR:IOProcessor

Methods
IO	input ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:DeviceStatus

C‡: ARDOUR::AudioBackend::DeviceStatus

used to list device names along with whether or not they are currently available.

Data Members
bool	available
std::string	name

∁ ARDOUR:DeviceStatusVector

C‡: std::vector<ARDOUR::AudioBackend::DeviceStatus >

Constructor
ℂ	ARDOUR.DeviceStatusVector ()
ℂ	ARDOUR.DeviceStatusVector ()
Methods
LuaTable	add (LuaTable {DeviceStatus})
DeviceStatus	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (DeviceStatus)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

↠ ARDOUR:DiskIOProcessor

C‡: boost::shared_ptr< ARDOUR::DiskIOProcessor >, boost::weak_ptr< ARDOUR::DiskIOProcessor >

is-a: ARDOUR:Processor

A mixer strip element - plugin, send, meter, etc

Methods
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:DiskReader

C‡: boost::shared_ptr< ARDOUR::DiskReader >, boost::weak_ptr< ARDOUR::DiskReader >

is-a: ARDOUR:DiskIOProcessor

A mixer strip element - plugin, send, meter, etc

Methods
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:DiskWriter

C‡: boost::shared_ptr< ARDOUR::DiskWriter >, boost::weak_ptr< ARDOUR::DiskWriter >

is-a: ARDOUR:DiskIOProcessor

A mixer strip element - plugin, send, meter, etc

Methods
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:DoubleBeatsSamplesConverter

C‡: ARDOUR::DoubleBeatsSamplesConverter

Constructor
ℂ	ARDOUR.DoubleBeatsSamplesConverter (TempoMap, long)
Methods
double	from (long)
	Convert B time to A time (A from B)
long	to (double)
	Convert A time to B time (A to B)

∁ ARDOUR:EventList

C‡: std::list<Evoral::ControlEvent* >

Constructor
ℂ	ARDOUR.EventList ()
Methods
ControlEvent	back ()
bool	empty ()
ControlEvent	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

↠ ARDOUR:FileSource

C‡: boost::shared_ptr< ARDOUR::FileSource >, boost::weak_ptr< ARDOUR::FileSource >

is-a: ARDOUR:Source

A source associated with a file on disk somewhere

Methods
unsigned short	channel ()
float	gain ()
bool	isnil ()
std::string	origin ()
std::string	path ()
std::string	take_id ()
bool	within_session ()

Inherited from ARDOUR:Source

Methods
std::string	ancestor_name ()
bool	can_be_analysed ()
XrunPositions	captured_xruns ()
bool	empty ()
bool	has_been_analysed ()
long	length (long)
long	natural_position ()
long	timeline_position ()
long	timestamp ()
int	use_count ()
bool	used ()
bool	writable ()
Cast
AudioSource	to_audiosource ()
FileSource	to_filesource ()
MidiSource	to_midisource ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:FluidSynth

C‡: ARDOUR::FluidSynth

Constructor
ℂ	ARDOUR.FluidSynth (float, int)
	instantiate a Synth samplerate samplerate polyphony polyphony
Methods
bool	load_sf2 (std::string)
bool	midi_event (unsigned char*, unsigned long)
void	panic ()
unsigned int	program_count ()
std::string	program_name (unsigned int)
bool	select_program (unsigned int, unsigned char)
bool	synth (FloatArray, FloatArray, unsigned int)

↠ ARDOUR:GainControl

C‡: boost::shared_ptr< ARDOUR::GainControl >, boost::weak_ptr< ARDOUR::GainControl >

is-a: ARDOUR:SlavableAutomationControl

A PBD::Controllable with associated automation data (AutomationList)

Methods
bool	isnil ()

Inherited from ARDOUR:SlavableAutomationControl

Methods
void	add_master (AutomationControl)
void	clear_masters ()
int	get_boolean_masters ()
double	get_masters_value ()
void	remove_master (AutomationControl)
bool	slaved ()
bool	slaved_to (AutomationControl)

Inherited from ARDOUR:AutomationControl

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:IO

C‡: boost::shared_ptr< ARDOUR::IO >, boost::weak_ptr< ARDOUR::IO >

is-a: ARDOUR:SessionObjectPtr

A collection of ports (all input or all output) with connections.

An IO can contain ports of varying types, making routes/inserts/etc with varied combinations of types (eg MIDI and audio) possible.

Methods
bool	active ()
int	add_port (std::string, void*, DataType)
	Add a port. destination Name of port to connect new port to. src Source for emitted ConfigurationChanged signal. type Data type of port. Default value (NIL) will use this IO's default type.
AudioPort	audio (unsigned int)
int	connect (Port, std::string, void*)
int	disconnect (Port, std::string, void*)
int	disconnect_all (void*)
bool	has_port (Port)
bool	isnil ()
long	latency ()
MidiPort	midi (unsigned int)
ChanCount	n_ports ()
Port	nth (unsigned int)
bool	physically_connected ()
Port	port_by_name (unsigned int)
long	public_latency ()
int	remove_port (Port, void*)

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:IOProcessor

C‡: boost::shared_ptr< ARDOUR::IOProcessor >, boost::weak_ptr< ARDOUR::IOProcessor >

is-a: ARDOUR:Processor

A mixer strip element (Processor) with 1 or 2 IO elements.

Methods
IO	input ()
bool	isnil ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:InterThreadInfo

C‡: ARDOUR::InterThreadInfo

Constructor
ℂ	ARDOUR.InterThreadInfo ()
Data Members
bool	done
float	progress

↠ ARDOUR:InternalReturn

C‡: boost::shared_ptr< ARDOUR::InternalReturn >, boost::weak_ptr< ARDOUR::InternalReturn >

is-a: ARDOUR:Return

A mixer strip element - plugin, send, meter, etc

Methods
bool	isnil ()

Inherited from ARDOUR:IOProcessor

Methods
IO	input ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:InternalSend

C‡: boost::shared_ptr< ARDOUR::InternalSend >, boost::weak_ptr< ARDOUR::InternalSend >

is-a: ARDOUR:Send

A mixer strip element (Processor) with 1 or 2 IO elements.

Methods
bool	allow_feedback ()
std::string	display_name ()
bool	feeds (Route)
bool	isnil ()
void	set_allow_feedback (bool)
bool	set_name (std::string)
Route	source_route ()
Route	target_route ()

Inherited from ARDOUR:Send

Methods
GainControl	gain_control ()
long	get_delay_in ()
long	get_delay_out ()
bool	is_foldback ()
void	set_remove_on_disconnect (bool)
Cast
InternalSend	to_internalsend ()

Inherited from ARDOUR:Delivery

Methods
PannerShell	panner_shell ()

Inherited from ARDOUR:IOProcessor

Methods
IO	input ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:LatencyRange

C‡: ARDOUR::LatencyRange

Constructor
ℂ	ARDOUR.LatencyRange ()
Data Members
unsigned int	max
unsigned int	min

↠ ARDOUR:Latent

C‡: boost::shared_ptr< ARDOUR::Latent >, boost::weak_ptr< ARDOUR::Latent >

Methods
long	effective_latency ()
bool	isnil ()
void	set_user_latency (long)
void	unset_user_latency ()
long	user_latency ()

∁ ARDOUR:Location

C‡: ARDOUR::Location

is-a: PBD:StatefulDestructible

Location on Timeline - abstract representation for Markers, Loop/Punch Ranges, CD-Markers etc.

Methods
long	_end ()
Flags	flags ()
bool	is_auto_loop ()
bool	is_auto_punch ()
bool	is_cd_marker ()
bool	is_hidden ()
bool	is_mark ()
bool	is_range_marker ()
bool	is_session_range ()
long	length ()
void	lock ()
bool	locked ()
bool	matches (Flags)
int	move_to (long, unsigned int)
std::string	name ()
int	set (long, long, bool, unsigned int)
int	set_end (long, bool, bool, unsigned int)
	Set end position. force true to force setting, even if the given new end is before the current start. allow_beat_recompute True to recompute BEAT end time from the new given end time. s New end.
int	set_length (long, long, bool, unsigned int)
void	set_name (std::string)
	Set location name
int	set_start (long, bool, bool, unsigned int)
	Set start position. s New start. force true to force setting, even if the given new start is after the current end. allow_beat_recompute True to recompute BEAT start time from the new given start time.
long	start ()
void	unlock ()

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:LocationList

C‡: std::list<ARDOUR::Location* >

Constructor
ℂ	ARDOUR.LocationList ()
Methods
Location	back ()
bool	empty ()
Location	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:Locations

C‡: ARDOUR::Locations

is-a: PBD:StatefulDestructible

A collection of session locations including unique dedicated locations (loop, punch, etc)

Methods
Location	add_range (long, long)
	Add new range to the collection start start position end end position Returns New location object
Location	auto_loop_location ()
Location	auto_punch_location ()
LuaTable(...)	find_all_between (long, long, LocationList&, Flags)
long	first_mark_after (long, bool)
Location	first_mark_at (long, long)
long	first_mark_before (long, bool)
LocationList	list ()
Location	mark_at (long, long)
LuaTable(...)	marks_either_side (long, long&, long&)
	Look for the `marks' (either locations which are marks, or start/end points of range markers) either side of a sample. Note that if sample is exactly on a `mark', that mark will not be considered for returning as before/after. sample Frame to look for. before Filled in with the position of the last `mark' before `sample' (or max_samplepos if none exists) after Filled in with the position of the next `mark' after `sample' (or max_samplepos if none exists)
Location	range_starts_at (long, long, bool)
	Return range with closest start pos to the where argument pos point to compare with start pos slop area around point to search for start pos incl (optional) look only for ranges that includes 'where' point Returns Location object or nil
void	remove (Location)
Location	session_range_location ()

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

ℕ ARDOUR.LuaAPI

Methods
std::string	ascii_dtostr (double)
...	build_filename (--lua--)
	Creates a filename from a series of elements using the correct separator for filenames. No attempt is made to force the resulting filename to be an absolute path. If the first element is a relative path, the result will be a relative path.
...	color_to_rgba (--lua--)
	A convenience function to expand RGBA parameters from an integer convert a Canvas::Color (uint32_t 0xRRGGBBAA) into double RGBA values which can be passed as parameters to Cairo::Context::set_source_rgba Example: local r, g, b, a = ARDOUR.LuaAPI.color_to_rgba (0x88aa44ff) cairo_ctx:set_source_rgba (ARDOUR.LuaAPI.color_to_rgba (0x11336699) Returns 4 parameters: red, green, blue, alpha (in range 0..1)
...	desc_scale_points (--lua--)
std::string	dump_untagged_plugins ()
	Write a list of untagged plugins to a file, so we can bulk-tag them Returns path to XML file or empty string on error
std::string	file_get_contents (std::string)
bool	file_test (std::string, FileTest)
LuaTable(float, ...)	get_plugin_insert_param (PluginInsert, unsigned int, bool&)
	get a plugin control parameter value pi Plugin-Insert which control port to query (starting at 0, including ports of type input and output) ok boolean variable contains true or false after call returned. to be checked by caller before using value. Returns value
LuaTable(float, ...)	get_processor_param (Processor, unsigned int, bool&)
	get a plugin control parameter value proc Plugin-Processor which control port to set (starting at 0, including ports of type input and output)) ok boolean variable contains true or false after call returned. to be checked by caller before using value. Returns value
...	hsla_to_rgba (--lua--)
	A convenience function for colorspace HSL to RGB conversion. All ranges are 0..1 Example: local r, g, b, a = ARDOUR.LuaAPI.hsla_to_rgba (hue, saturation, luminosity, alpha) Returns 4 parameters: red, green, blue, alpha (in range 0..1)
PluginInfoList	list_plugins ()
	List all installed plugins
long	monotonic_time ()
Processor	new_luaproc (Session, std::string)
	create a new Lua Processor (Plugin) s Session Handle name Identifier or Name of the Processor Returns Processor object (may be nil)
NotePtr	new_noteptr (unsigned char, Beats, Beats, unsigned char, unsigned char)
Processor	new_plugin (Session, std::string, PluginType, std::string)
	create a new Plugin Instance s Session Handle name Plugin Name, ID or URI type Plugin Type preset name of plugin-preset to load, leave empty "" to not load any preset after instantiation Returns Processor or nil
PluginInfo	new_plugin_info (std::string, PluginType)
	search a Plugin name Plugin Name, ID or URI type Plugin Type Returns PluginInfo or nil if not found
Processor	new_send (Session, Route, Processor)
	add a new [external] Send to the given Route s Session Handle r Route to add Send to p add send before given processor (or nil_processor to add at the end)
Processor	nil_proc ()
NotePtrList	note_list (MidiModel)
std::string	path_get_basename (std::string)
...	plugin_automation (--lua--)
	A convenience function to get a Automation Lists and ParamaterDescriptor for a given plugin control. This is equivalent to the following lua code function (processor, param_id) local plugininsert = processor:to_insert () local plugin = plugininsert:plugin(0) local _, t = plugin:get_parameter_descriptor(param_id, ARDOUR.ParameterDescriptor ()) local ctrl = Evoral.Parameter (ARDOUR.AutomationType.PluginAutomation, 0, param_id) local ac = pi:automation_control (ctrl, false) local acl = ac:alist() return ac:alist(), ac:to_ctrl():list(), t[2] end Example usage: get the third input parameter of first plugin on the given route (Ardour starts counting at zero). local al, cl, pd = ARDOUR.LuaAPI.plugin_automation (route:nth_plugin (0), 3) Returns 3 parameters: AutomationList, ControlList, ParamaterDescriptor
bool	reset_processor_to_default (Processor)
	reset a processor to its default values (only works for plugins ) This is a wrapper which looks up the Processor by plugin-insert. proc Plugin-Insert Returns true on success, false when the processor is not a plugin
...	sample_to_timecode (--lua--)
	Generic conversion from audio sample count to timecode. (TimecodeType, sample-rate, sample-pos)
void	segfault ()
	Crash Test Dummy
bool	set_plugin_insert_param (PluginInsert, unsigned int, float)
	set a plugin control-input parameter value This is a wrapper around set_processor_param which looks up the Processor by plugin-insert. pi Plugin-Insert which control-input to set (starting at 0) value value to set Returns true on success, false on error or out-of-bounds value
bool	set_processor_param (Processor, unsigned int, float)
	set a plugin control-input parameter value proc Plugin-Processor which control-input to set (starting at 0) value value to set Returns true on success, false on error or out-of-bounds value
...	timecode_to_sample (--lua--)
	Generic conversion from timecode to audio sample count. (TimecodeType, sample-rate, hh, mm, ss, ff)
void	usleep (unsigned long)
bool	wait_for_process_callback (unsigned long, long)
	Delay execution until next prcess cycle starts. n_cycles process-cycles to wait for. 0: means wait until next cycle-start, otherwise skip given number of cycles. timeout_ms wait at most this many milliseconds Returns true on success, false if timeout was reached or engine was not running

∁ ARDOUR:LuaAPI:Rubberband

C‡: ARDOUR::LuaAPI::Rubberband

Constructor
ℂ	ARDOUR.LuaAPI.Rubberband (AudioRegion, bool)
Methods
unsigned int	n_channels ()
AudioRegion	process (Lua-Function)
Readable	readable ()
long	readable_length ()
bool	set_mapping (Lua-Function)
bool	set_strech_and_pitch (double, double)

∁ ARDOUR:LuaAPI:Vamp

C‡: ARDOUR::LuaAPI::Vamp

Constructor
ℂ	ARDOUR.LuaAPI.Vamp (std::string, float)
Methods
int	analyze (Readable, unsigned int, Lua-Function)
	high-level abstraction to process a single channel of the given Readable. If the plugin is not yet initialized, initialize() is called. if `fn` is not nil, it is called with the immediate Vamp::Plugin::Features on every process call. r readable channel channel to process cb lua callback function or nil Returns 0 on success
bool	initialize ()
	initialize the plugin for use with analyze(). This is equivalent to plugin():initialise (1, ssiz, bsiz) and prepares a plugin for analyze. (by preferred step and block sizes are used. if the plugin does not specify them or they're larger than 8K, both are set to 1024) Manual initialization is only required to set plugin-parameters which depend on prior initialization of the plugin. vamp:reset () vamp:initialize () vamp:plugin():setParameter (0, 1.5, nil) vamp:analyze (r, 0)
StringVector	list_plugins ()
Plugin	plugin ()
FeatureSet	process (FloatArrayVector, RealTime)
	process given array of audio-samples. This is a lua-binding for vamp:plugin():process () d audio-data, the vector must match the configured channel count and hold a complete buffer for every channel as set during plugin():initialise() rt timestamp matching the provided buffer. Returns features extracted from that data (if the plugin is causal)
void	reset ()
	call plugin():reset() and clear intialization flag

∁ ARDOUR:LuaOSC:Address

C‡: ARDOUR::LuaOSC::Address

OSC transmitter

A Class to send OSC messages.

Constructor
ℂ	ARDOUR.LuaOSC.Address (std::string)
	Construct a new OSC transmitter object uri the destination uri e.g. "osc.udp://localhost:7890"
Methods
...	send (--lua--)
	Transmit an OSC message Path (string) and type (string) must always be given. The number of following args must match the type. Supported types are: 'i': integer (lua number) 'f': float (lua number) 'd': double (lua number) 'h': 64bit integer (lua number) 's': string (lua string) 'c': character (lua string) 'T': boolean (lua bool) -- this is not implicily True, a lua true/false must be given 'F': boolean (lua bool) -- this is not implicily False, a lua true/false must be given lua: lua arguments: path, types, ... Returns boolean true if successful, false on error.

↠ ARDOUR:LuaProc

C‡: boost::shared_ptr< ARDOUR::LuaProc >, boost::weak_ptr< ARDOUR::LuaProc >

is-a: ARDOUR:Plugin

A plugin is an external module (usually 3rd party provided) loaded into Ardour for the purpose of digital signal processing.

This class provides an abstraction for methords provided by all supported plugin standards such as presets, name, parameters etc.

Plugins are not used directly in Ardour but always wrapped by a PluginInsert.

Methods
bool	isnil ()
DspShm	shmem ()
LuaTableRef	table ()

Inherited from ARDOUR:Plugin

Methods
IOPortDescription	describe_io_port (DataType, bool, unsigned int)
std::string	get_docs ()
PluginInfo	get_info ()
LuaTable(int, ...)	get_parameter_descriptor (unsigned int, ParameterDescriptor&)
std::string	get_parameter_docs (unsigned int)
char*	label ()
PresetRecord	last_preset ()
	Returns Last preset to be requested; the settings may have been changed since; find out with parameter_changed_since_last_preset.
bool	load_preset (PresetRecord)
	Set parameters using a preset
char*	maker ()
char*	name ()
LuaTable(unsigned int, ...)	nth_parameter (unsigned int, bool&)
unsigned int	parameter_count ()
bool	parameter_is_audio (unsigned int)
bool	parameter_is_control (unsigned int)
bool	parameter_is_input (unsigned int)
bool	parameter_is_output (unsigned int)
std::string	parameter_label (unsigned int)
PresetRecord	preset_by_label (std::string)
PresetRecord	preset_by_uri (std::string)
std::string	unique_id ()
Cast
LuaProc	to_luaproc ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:LuaTableRef

C‡: ARDOUR::LuaTableRef

Methods
...	get (--lua--)
...	set (--lua--)

∁ ARDOUR:MIDIPortMeters

C‡: std::map<std::string, ARDOUR::PortManager::MPM >

Constructor
ℂ	ARDOUR.MIDIPortMeters ()
Methods
LuaTable	add (std::string, ARDOUR::PortManager::MPM )
...	at (--lua--)
void	clear ()
unsigned long	count (std::string)
bool	empty ()
LuaIter	iter ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:Meter

C‡: ARDOUR::Meter

Meter, or time signature (beats per bar, and which note type is a beat).

Constructor
ℂ	ARDOUR.Meter (double, double)
Methods
double	divisions_per_bar ()
double	note_divisor ()
double	samples_per_bar (Tempo, long)
double	samples_per_grid (Tempo, long)

∁ ARDOUR:MeterSection

C‡: ARDOUR::MeterSection

is-a: ARDOUR:MetricSection

A section of timeline with a certain Meter.

Methods
BBT_TIME	bbt ()
double	beat ()
void	set_beat (double)
Cast
Meter	to_meter ()

Inherited from ARDOUR:MetricSection

Methods
bool	initial ()
bool	is_tempo ()
double	minute ()
double	minute_at_sample (long)
double	pulse ()
long	sample ()
long	sample_at_minute (double)
void	set_pulse (double)

∁ ARDOUR:MetricSection

C‡: ARDOUR::MetricSection

A section of timeline with a certain Tempo or Meter.

Methods
bool	initial ()
bool	is_tempo ()
double	minute ()
double	minute_at_sample (long)
double	pulse ()
long	sample ()
long	sample_at_minute (double)
void	set_pulse (double)

∁ ARDOUR:MidiBuffer

C‡: ARDOUR::MidiBuffer

Buffer containing 8-bit unsigned char (MIDI) data.

Methods
void	copy (MidiBuffer)
bool	empty ()
bool	push_back (long, EventType, unsigned long, unsigned char*)
bool	push_event (Event)
void	resize (unsigned long)
	Reallocate the buffer used internally to handle at least size_t units of data. The buffer is not silent after this operation. the capacity argument passed to the constructor must have been non-zero.
void	silence (long, long)
	Clear (eg zero, or empty) buffer
unsigned long	size ()
...	table (--lua--)

↠ ARDOUR:MidiModel

C‡: boost::shared_ptr< ARDOUR::MidiModel >, boost::weak_ptr< ARDOUR::MidiModel >

is-a: ARDOUR:AutomatableSequence

This is a higher level (than MidiBuffer) model of MIDI data, with separate representations for notes (instead of just unassociated note on/off events) and controller data. Controller data is represented as part of the Automatable base (i.e. in a map of AutomationList, keyed by Parameter). Because of this MIDI controllers and automatable controllers/widgets/etc are easily interchangeable.

Methods
void	apply_command (Session, Command)
bool	isnil ()
NoteDiffCommand	new_note_diff_command (std::string)
	Start a new NoteDiff command. This has no side-effects on the model or Session, the returned command can be held on to for as long as the caller wishes, or discarded without formality, until apply_command is called and ownership is taken.

Inherited from ARDOUR:AutomatableSequence

Cast
Sequence	to_sequence ()

Inherited from ARDOUR:Automatable

Methods
ParameterList	all_automatable_params ()
	API for Lua binding
AutomationControl	automation_control (Parameter, bool)
Cast
Slavable	to_slavable ()

∅ ARDOUR:MidiModel:DiffCommand

C‡: ARDOUR::MidiModel::DiffCommand

is-a: PBD:Command

Base class for Undo/Redo commands and changesets

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

Inherited from PBD:Command

Methods
std::string	name ()
void	set_name (std::string)

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:MidiModel:NoteDiffCommand

C‡: ARDOUR::MidiModel::NoteDiffCommand

is-a: ARDOUR:MidiModel:DiffCommand

Base class for Undo/Redo commands and changesets

Methods
void	add (NotePtr)
void	remove (NotePtr)

Inherited from PBD:Command

Methods
std::string	name ()
void	set_name (std::string)

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:MidiPlaylist

C‡: boost::shared_ptr< ARDOUR::MidiPlaylist >, boost::weak_ptr< ARDOUR::MidiPlaylist >

is-a: ARDOUR:Playlist

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
bool	isnil ()
void	set_note_mode (NoteMode)

Inherited from ARDOUR:Playlist

Methods
void	add_region (Region, long, float, bool, int, double, bool)
	Note: this calls set_layer (..., DBL_MAX) so it will reset the layering index of region
Region	combine (RegionList)
unsigned int	count_regions_at (long)
Playlist	cut (AudioRangeList&, bool)
DataType	data_type ()
void	duplicate (Region, long, long, float)
	gap from the beginning of the region to the next beginning
void	duplicate_range (AudioRange&, float)
void	duplicate_until (Region, long, long, long)
	gap from the beginning of the region to the next beginning end the first sample that does _not_ contain a duplicated sample
bool	empty ()
Region	find_next_region (long, RegionPoint, int)
long	find_next_region_boundary (long, int)
long	find_next_transient (long, int)
ID	get_orig_track_id ()
bool	hidden ()
void	lower_region (Region)
void	lower_region_to_bottom (Region)
unsigned int	n_regions ()
void	raise_region (Region)
void	raise_region_to_top (Region)
Region	region_by_id (ID)
RegionListPtr	region_list ()
RegionListPtr	regions_at (long)
RegionListPtr	regions_touched (long, long)
	start Range start. end Range end. Returns regions which have some part within this range.
RegionListPtr	regions_with_end_within (Range)
RegionListPtr	regions_with_start_within (Range)
void	remove_region (Region)
bool	set_name (std::string)
bool	shared ()
void	split_region (Region, MusicSample)
Region	top_region_at (long)
Region	top_unmuted_region_at (long)
void	uncombine (Region)
bool	used ()
Cast
AudioPlaylist	to_audioplaylist ()
MidiPlaylist	to_midiplaylist ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:MidiPort

C‡: boost::shared_ptr< ARDOUR::MidiPort >, boost::weak_ptr< ARDOUR::MidiPort >

is-a: ARDOUR:Port

Methods
MidiBuffer	get_midi_buffer (unsigned int)
bool	input_active ()
bool	isnil ()
void	set_input_active (bool)
Cast
AsyncMIDIPort	to_asyncmidiport ()

Inherited from ARDOUR:Port

Methods
int	connect (std::string)
bool	connected ()
	Returns true if this port is connected to anything
bool	connected_to (std::string)
	o Port name Returns true if this port is connected to o, otherwise false.
int	disconnect (std::string)
int	disconnect_all ()
PortFlags	flags ()
	Returns flags
LuaTable(...)	get_connected_latency_range (LatencyRange&, bool)
std::string	name ()
	Returns Port short name
bool	physically_connected ()
std::string	pretty_name (bool)
	Returns Port human readable name
LatencyRange	private_latency_range (bool)
LatencyRange	public_latency_range (bool)
bool	receives_input ()
	Returns true if this Port receives input, otherwise false
bool	sends_output ()
	Returns true if this Port sends output, otherwise false
Cast
AsyncMIDIPort	to_asyncmidiport ()
AudioPort	to_audioport ()
MidiPort	to_midiport ()

↠ ARDOUR:MidiRegion

C‡: boost::shared_ptr< ARDOUR::MidiRegion >, boost::weak_ptr< ARDOUR::MidiRegion >

is-a: ARDOUR:Region

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
bool	do_export (std::string)
	Export the MIDI data of the MidiRegion to a new MIDI file (SMF).
bool	isnil ()
double	length_beats ()
MidiSource	midi_source (unsigned int)
MidiModel	model ()
double	start_beats ()

Inherited from ARDOUR:Region

Methods
bool	at_natural_position ()
bool	automatic ()
bool	can_move ()
bool	captured ()
void	captured_xruns (XrunPositions&, bool)
void	clear_sync_position ()
Control	control (Parameter, bool)
bool	covers (long)
void	cut_end (long, int)
void	cut_front (long, int)
DataType	data_type ()
bool	external ()
bool	has_transients ()
bool	hidden ()
bool	import ()
bool	is_compound ()
unsigned int	layer ()
long	length ()
bool	locked ()
void	lower ()
void	lower_to_bottom ()
StringVector	master_source_names ()
SourceList	master_sources ()
void	move_start (long, int)
void	move_to_natural_position ()
bool	muted ()
unsigned int	n_channels ()
void	nudge_position (long)
bool	opaque ()
Playlist	playlist ()
long	position ()
	How the region parameters play together: POSITION: first sample of the region along the timeline START: first sample of the region within its source(s) LENGTH: number of samples the region represents
bool	position_locked ()
double	quarter_note ()
void	raise ()
void	raise_to_top ()
void	set_hidden (bool)
void	set_initial_position (long)
	A gui may need to create a region, then place it in an initial position determined by the user. When this takes place within one gui operation, we have to reset _last_position to prevent an implied move.
void	set_length (long, int)
void	set_locked (bool)
void	set_muted (bool)
bool	set_name (std::string)
	Note: changing the name of a Region does not constitute an edit
void	set_opaque (bool)
void	set_position (long, int)
void	set_position_locked (bool)
void	set_start (long)
void	set_sync_position (long)
	Set the region's sync point. absolute_pos Session time.
void	set_video_locked (bool)
float	shift ()
Source	source (unsigned int)
long	start ()
float	stretch ()
bool	sync_marked ()
LuaTable(long, ...)	sync_offset (int&)
long	sync_position ()
	Returns Sync position in session time
Int64List	transients ()
void	trim_end (long, int)
void	trim_front (long, int)
void	trim_to (long, long, int)
bool	video_locked ()
bool	whole_file ()
Cast
AudioRegion	to_audioregion ()
MidiRegion	to_midiregion ()
Readable	to_readable ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:MidiSource

C‡: boost::shared_ptr< ARDOUR::MidiSource >, boost::weak_ptr< ARDOUR::MidiSource >

is-a: ARDOUR:Source

Source for MIDI data

Methods
bool	empty ()
bool	isnil ()
long	length (long)
MidiModel	model ()

Inherited from ARDOUR:Source

Methods
std::string	ancestor_name ()
bool	can_be_analysed ()
XrunPositions	captured_xruns ()
bool	has_been_analysed ()
long	natural_position ()
long	timeline_position ()
long	timestamp ()
int	use_count ()
bool	used ()
bool	writable ()
Cast
AudioSource	to_audiosource ()
FileSource	to_filesource ()
MidiSource	to_midisource ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:MidiTrack

C‡: boost::shared_ptr< ARDOUR::MidiTrack >, boost::weak_ptr< ARDOUR::MidiTrack >

is-a: ARDOUR:Track

A track is an route (bus) with a recordable diskstream and related objects relevant to recording, playback and editing.

Specifically a track has a playlist object that describes material to be played from disk, and modifies that object during recording and editing.

Methods
bool	isnil ()
bool	write_immediate_event (EventType, unsigned long, unsigned char*)

Inherited from ARDOUR:Track

Methods
Region	bounce (InterThreadInfo&, std::string)
	bounce track from session start to session end to new region itt asynchronous progress report and cancel Returns a new audio region (or nil in case of error)
Region	bounce_range (long, long, InterThreadInfo&, Processor, bool, std::string)
	Bounce the given range to a new audio region. start start time (in samples) end end time (in samples) itt asynchronous progress report and cancel endpoint the processor to tap the signal off (or nil for the top) include_endpoint include the given processor in the bounced audio. Returns a new audio region (or nil in case of error)
bool	bounceable (Processor, bool)
	Test if the track can be bounced with the given settings. If sends/inserts/returns are present in the signal path or the given track has no audio outputs bouncing is not possible. endpoint the processor to tap the signal off (or nil for the top) include_endpoint include the given processor in the bounced audio. Returns true if the track can be bounced, or false otherwise.
bool	can_record ()
int	find_and_use_playlist (DataType, ID)
Playlist	playlist ()
bool	set_name (std::string)
int	use_copy_playlist ()
int	use_new_playlist (DataType)
int	use_playlist (DataType, Playlist, bool)
Cast
AudioTrack	to_audio_track ()
MidiTrack	to_midi_track ()

Inherited from ARDOUR:Route

Methods
bool	active ()
int	add_aux_send (Route, Processor)
	Add an aux send to a route. route route to send to. before Processor to insert before, or 0 to insert at the end.
int	add_foldback_send (Route, bool)
int	add_processor_by_index (Processor, int, ProcessorStreams, bool)
	Add a processor to a route such that it ends up with a given index into the visible processors. index Index to add the processor at, or -1 to add at the end of the list. Returns 0 on success, non-0 on failure.
bool	add_sidechain (Processor)
Amp	amp ()
std::string	comment ()
bool	customize_plugin_insert (Processor, unsigned int, ChanCount, ChanCount)
	enable custom plugin-insert configuration proc Processor to customize count number of plugin instances to use (if zero, reset to default) outs output port customization sinks input pins for variable-I/O plugins Returns true if successful
DataType	data_type ()
IO	input ()
Delivery	main_outs ()
	the signal processorat at end of the processing chain which produces output
MonitorControl	monitoring_control ()
MonitorState	monitoring_state ()
bool	muted ()
ChanCount	n_inputs ()
ChanCount	n_outputs ()
Processor	nth_plugin (unsigned int)
Processor	nth_processor (unsigned int)
Processor	nth_send (unsigned int)
IO	output ()
PannerShell	panner_shell ()
PeakMeter	peak_meter ()
	*********************************************************** Pure interface begins here***********************************************************
long	playback_latency (bool)
int	remove_processor (Processor, ProcessorStreams, bool)
	remove plugin/processor proc processor to remove err error report (index where removal vailed, channel-count why it failed) may be nil need_process_lock if locking is required (set to true, unless called from RT context with lock) Returns 0 on success
int	remove_processors (ProcessorList, ProcessorStreams)
bool	remove_sidechain (Processor)
int	reorder_processors (ProcessorList, ProcessorStreams)
int	replace_processor (Processor, Processor, ProcessorStreams)
	replace plugin/processor with another old processor to remove sub processor to substitute the old one with err error report (index where removal vailed, channel-count why it failed) may be nil Returns 0 on success
bool	reset_plugin_insert (Processor)
	reset plugin-insert configuration to default, disable customizations. This is equivalent to calling customize_plugin_insert (proc, 0, unused) proc Processor to reset Returns true if successful
void	set_active (bool, void*)
void	set_comment (std::string, void*)
void	set_meter_point (MeterPoint)
bool	set_strict_io (bool)
long	signal_latency ()
bool	soloed ()
bool	strict_io ()
Processor	the_instrument ()
	Return the first processor that accepts has at least one MIDI input and at least one audio output. In the vast majority of cases, this will be "the instrument". This does not preclude other MIDI->audio processors later in the processing chain, but that would be a special case not covered by this utility function.
Amp	trim ()
Cast
Track	to_track ()

Inherited from ARDOUR:Stripable

Methods
AutomationControl	comp_enable_controllable ()
AutomationControl	comp_makeup_controllable ()
AutomationControl	comp_mode_controllable ()
std::string	comp_mode_name (unsigned int)
ReadOnlyControl	comp_redux_controllable ()
AutomationControl	comp_speed_controllable ()
std::string	comp_speed_name (unsigned int)
AutomationControl	comp_threshold_controllable ()
unsigned int	eq_band_cnt ()
std::string	eq_band_name (unsigned int)
AutomationControl	eq_enable_controllable ()
AutomationControl	eq_freq_controllable (unsigned int)
AutomationControl	eq_gain_controllable (unsigned int)
AutomationControl	eq_q_controllable (unsigned int)
AutomationControl	eq_shape_controllable (unsigned int)
AutomationControl	filter_enable_controllable (bool)
AutomationControl	filter_freq_controllable (bool)
AutomationControl	filter_slope_controllable (bool)
GainControl	gain_control ()
bool	is_auditioner ()
bool	is_hidden ()
bool	is_master ()
bool	is_monitor ()
bool	is_private_route ()
bool	is_selected ()
AutomationControl	master_send_enable_controllable ()
MonitorProcessor	monitor_control ()
MuteControl	mute_control ()
AutomationControl	pan_azimuth_control ()
AutomationControl	pan_elevation_control ()
AutomationControl	pan_frontback_control ()
AutomationControl	pan_lfe_control ()
AutomationControl	pan_width_control ()
PhaseControl	phase_control ()
PresentationInfo	presentation_info_ptr ()
AutomationControl	rec_enable_control ()
AutomationControl	rec_safe_control ()
AutomationControl	send_enable_controllable (unsigned int)
AutomationControl	send_level_controllable (unsigned int)
std::string	send_name (unsigned int)
AutomationControl	send_pan_azimuth_controllable (unsigned int)
AutomationControl	send_pan_azimuth_enable_controllable (unsigned int)
void	set_presentation_order (unsigned int)
bool	slaved ()
bool	slaved_to (VCA)
SoloControl	solo_control ()
SoloIsolateControl	solo_isolate_control ()
SoloSafeControl	solo_safe_control ()
GainControl	trim_control ()
Cast
Automatable	to_automatable ()
Route	to_route ()
Slavable	to_slavable ()
VCA	to_vca ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:MidiTrackList

C‡: std::list<boost::shared_ptr<ARDOUR::MidiTrack> >

Constructor
ℂ	ARDOUR.MidiTrackList ()
Methods
LuaTable	add (LuaTable {MidiTrack})
MidiTrack	back ()
bool	empty ()
MidiTrack	front ()
LuaIter	iter ()
void	push_back (MidiTrack)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

↠ ARDOUR:MonitorControl

C‡: boost::shared_ptr< ARDOUR::MonitorControl >, boost::weak_ptr< ARDOUR::MonitorControl >

is-a: ARDOUR:SlavableAutomationControl

A PBD::Controllable with associated automation data (AutomationList)

Methods
bool	isnil ()
MonitorChoice	monitoring_choice ()

Inherited from ARDOUR:SlavableAutomationControl

Methods
void	add_master (AutomationControl)
void	clear_masters ()
int	get_boolean_masters ()
double	get_masters_value ()
void	remove_master (AutomationControl)
bool	slaved ()
bool	slaved_to (AutomationControl)

Inherited from ARDOUR:AutomationControl

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:MonitorProcessor

C‡: boost::shared_ptr< ARDOUR::MonitorProcessor >, boost::weak_ptr< ARDOUR::MonitorProcessor >

is-a: ARDOUR:Processor

A mixer strip element - plugin, send, meter, etc

Methods
Controllable	channel_cut_control (unsigned int)
Controllable	channel_dim_control (unsigned int)
Controllable	channel_polarity_control (unsigned int)
Controllable	channel_solo_control (unsigned int)
bool	cut (unsigned int)
bool	cut_all ()
Controllable	cut_control ()
bool	dim_all ()
Controllable	dim_control ()
float	dim_level ()
Controllable	dim_level_control ()
bool	dimmed (unsigned int)
bool	inverted (unsigned int)
bool	isnil ()
bool	monitor_active ()
bool	mono ()
Controllable	mono_control ()
void	set_cut (unsigned int, bool)
void	set_cut_all (bool)
void	set_dim (unsigned int, bool)
void	set_dim_all (bool)
void	set_mono (bool)
void	set_polarity (unsigned int, bool)
void	set_solo (unsigned int, bool)
Controllable	solo_boost_control ()
float	solo_boost_level ()
bool	soloed (unsigned int)

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:MusicSample

C‡: ARDOUR::MusicSample

Constructor
ℂ	ARDOUR.MusicSample (long, int)
Methods
void	set (long, int)
Data Members
int	division
long	sample

↠ ARDOUR:MuteControl

C‡: boost::shared_ptr< ARDOUR::MuteControl >, boost::weak_ptr< ARDOUR::MuteControl >

is-a: ARDOUR:SlavableAutomationControl

A PBD::Controllable with associated automation data (AutomationList)

Methods
bool	isnil ()
bool	muted ()
bool	muted_by_self ()

Inherited from ARDOUR:SlavableAutomationControl

Methods
void	add_master (AutomationControl)
void	clear_masters ()
int	get_boolean_masters ()
double	get_masters_value ()
void	remove_master (AutomationControl)
bool	slaved ()
bool	slaved_to (AutomationControl)

Inherited from ARDOUR:AutomationControl

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:NotePtrList

C‡: std::list<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > >

Constructor
ℂ	ARDOUR.NotePtrList ()
Methods
LuaTable	add (LuaTable {Beats})
NotePtr	back ()
bool	empty ()
NotePtr	front ()
LuaIter	iter ()
void	push_back (NotePtr)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

∅ ARDOUR:OwnedPropertyList

C‡: PBD::OwnedPropertyList

is-a: ARDOUR:PropertyList

Persistent Property List

A variant of PropertyList that does not delete its property list in its destructor. Objects with their own Properties store them in an OwnedPropertyList to avoid having them deleted at the wrong time.

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∁ ARDOUR:PDC

C‡: ARDOUR::Latent

Methods
void	force_zero_latency (bool)
bool	zero_latency ()

↠ ARDOUR:PannerShell

C‡: boost::shared_ptr< ARDOUR::PannerShell >, boost::weak_ptr< ARDOUR::PannerShell >

is-a: ARDOUR:SessionObjectPtr

Class to manage panning by instantiating and controlling an appropriate Panner object for a given in/out configuration.

Methods
bool	bypassed ()
bool	isnil ()
void	set_bypassed (bool)

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:ParameterDescriptor

C‡: ARDOUR::ParameterDescriptor

is-a: Evoral:ParameterDescriptor

Descriptor of a parameter or control.

Essentially a union of LADSPA, VST and LV2 info.

Constructor
ℂ	ARDOUR.ParameterDescriptor ()
Methods
std::string	midi_note_name (unsigned char, bool)
Data Members
unsigned int	display_priority
	higher is more important http://lv2plug.in/ns/ext/port-props#displayPriority
bool	enumeration
bool	inline_ctrl
bool	integer_step
std::string	label
float	largestep
std::string	print_fmt
	format string for pretty printing
float	smallstep
bool	sr_dependent
float	step

Inherited from Evoral:ParameterDescriptor

Constructor
ℂ	Evoral.ParameterDescriptor ()
Data Members
bool	logarithmic
	True for log-scale parameters
float	lower
	Minimum value (in Hz, for frequencies)
float	normal
	Default value
bool	toggled
	True iff parameter is boolean
float	upper
	Maximum value (in Hz, for frequencies)

∁ ARDOUR:ParameterList

C‡: std::vector<Evoral::Parameter >

Constructor
ℂ	ARDOUR.ParameterList ()
Methods
Parameter	at (unsigned long)
bool	empty ()
LuaIter	iter ()
unsigned long	size ()
LuaTable	table ()

↠ ARDOUR:PeakMeter

C‡: boost::shared_ptr< ARDOUR::PeakMeter >, boost::weak_ptr< ARDOUR::PeakMeter >

is-a: ARDOUR:Processor

Meters peaks on the input and stores them for access.

Methods
bool	isnil ()
float	meter_level (unsigned int, MeterType)
MeterType	meter_type ()
void	reset_max ()
void	set_meter_type (MeterType)

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:PhaseControl

C‡: boost::shared_ptr< ARDOUR::PhaseControl >, boost::weak_ptr< ARDOUR::PhaseControl >

is-a: ARDOUR:AutomationControl

A PBD::Controllable with associated automation data (AutomationList)

Methods
bool	inverted (unsigned int)
bool	isnil ()
void	set_phase_invert (unsigned int, bool)
	c Audio channel index. yn true to invert phase, otherwise false.

Inherited from ARDOUR:AutomationControl

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:Playlist

C‡: boost::shared_ptr< ARDOUR::Playlist >, boost::weak_ptr< ARDOUR::Playlist >

is-a: ARDOUR:SessionObjectPtr

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
void	add_region (Region, long, float, bool, int, double, bool)
	Note: this calls set_layer (..., DBL_MAX) so it will reset the layering index of region
Region	combine (RegionList)
unsigned int	count_regions_at (long)
Playlist	cut (AudioRangeList&, bool)
DataType	data_type ()
void	duplicate (Region, long, long, float)
	gap from the beginning of the region to the next beginning
void	duplicate_range (AudioRange&, float)
void	duplicate_until (Region, long, long, long)
	gap from the beginning of the region to the next beginning end the first sample that does _not_ contain a duplicated sample
bool	empty ()
Region	find_next_region (long, RegionPoint, int)
long	find_next_region_boundary (long, int)
long	find_next_transient (long, int)
ID	get_orig_track_id ()
bool	hidden ()
bool	isnil ()
void	lower_region (Region)
void	lower_region_to_bottom (Region)
unsigned int	n_regions ()
void	raise_region (Region)
void	raise_region_to_top (Region)
Region	region_by_id (ID)
RegionListPtr	region_list ()
RegionListPtr	regions_at (long)
RegionListPtr	regions_touched (long, long)
	start Range start. end Range end. Returns regions which have some part within this range.
RegionListPtr	regions_with_end_within (Range)
RegionListPtr	regions_with_start_within (Range)
void	remove_region (Region)
bool	set_name (std::string)
bool	shared ()
void	split_region (Region, MusicSample)
Region	top_region_at (long)
Region	top_unmuted_region_at (long)
void	uncombine (Region)
bool	used ()
Cast
AudioPlaylist	to_audioplaylist ()
MidiPlaylist	to_midiplaylist ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:PlaylistList

C‡: std::vector<boost::shared_ptr<ARDOUR::Playlist> >

Constructor
ℂ	ARDOUR.PlaylistList ()
ℂ	ARDOUR.PlaylistList ()
Methods
LuaTable	add (LuaTable {Playlist})
Playlist	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (Playlist)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

↠ ARDOUR:Plugin

C‡: boost::shared_ptr< ARDOUR::Plugin >, boost::weak_ptr< ARDOUR::Plugin >

is-a: PBD:StatefulDestructiblePtr

A plugin is an external module (usually 3rd party provided) loaded into Ardour for the purpose of digital signal processing.

This class provides an abstraction for methords provided by all supported plugin standards such as presets, name, parameters etc.

Plugins are not used directly in Ardour but always wrapped by a PluginInsert.

Methods
IOPortDescription	describe_io_port (DataType, bool, unsigned int)
std::string	get_docs ()
PluginInfo	get_info ()
LuaTable(int, ...)	get_parameter_descriptor (unsigned int, ParameterDescriptor&)
std::string	get_parameter_docs (unsigned int)
bool	isnil ()
char*	label ()
PresetRecord	last_preset ()
	Returns Last preset to be requested; the settings may have been changed since; find out with parameter_changed_since_last_preset.
bool	load_preset (PresetRecord)
	Set parameters using a preset
char*	maker ()
char*	name ()
LuaTable(unsigned int, ...)	nth_parameter (unsigned int, bool&)
unsigned int	parameter_count ()
bool	parameter_is_audio (unsigned int)
bool	parameter_is_control (unsigned int)
bool	parameter_is_input (unsigned int)
bool	parameter_is_output (unsigned int)
std::string	parameter_label (unsigned int)
PresetRecord	preset_by_label (std::string)
PresetRecord	preset_by_uri (std::string)
std::string	unique_id ()
Cast
LuaProc	to_luaproc ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:Plugin:IOPortDescription

C‡: ARDOUR::Plugin::IOPortDescription

Data Members
unsigned int	group_channel
std::string	group_name
bool	is_sidechain
std::string	name

↠ ARDOUR:PluginControl

C‡: boost::shared_ptr< ARDOUR::PluginInsert::PluginControl >, boost::weak_ptr< ARDOUR::PluginInsert::PluginControl >

is-a: ARDOUR:AutomationControl

A control that manipulates a plugin parameter (control port).

Methods
bool	isnil ()

Inherited from ARDOUR:AutomationControl

Methods
AutomationList	alist ()
AutoState	automation_state ()
ParameterDescriptor	desc ()
double	get_value ()
	Get `internal' value Returns raw value as used for the plugin/processor control port
double	lower ()
double	normal ()
void	set_automation_state (AutoState)
void	set_value (double, GroupControlDisposition)
	Set `internal' value All derived classes must implement this. Basic derived classes will ignore `group_override` but more sophisticated children, notably those that proxy the value setting logic via an object that is aware of group relationships between this control and others, will find it useful. value raw numeric value to set group_override if and how to propagate value to grouped controls
void	start_touch (double)
void	stop_touch (double)
bool	toggled ()
double	upper ()
bool	writable ()
Cast
Control	to_ctrl ()
SlavableAutomationControl	to_slavable ()

Inherited from PBD:Controllable

Methods
std::string	name ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:PluginInfo

C‡: boost::shared_ptr< ARDOUR::PluginInfo >, boost::weak_ptr< ARDOUR::PluginInfo >

Constructor
ℵ	ARDOUR.PluginInfo ()
Methods
PresetVector	get_presets (bool)
bool	is_instrument ()
bool	isnil ()
Data Members
std::string	category
std::string	creator
ARDOUR:ChanCount	n_inputs
ARDOUR:ChanCount	n_outputs
std::string	name
std::string	path
ARDOUR.PluginType	_type
std::string	unique_id

∁ ARDOUR:PluginInfoList

C‡: std::list<boost::shared_ptr<ARDOUR::PluginInfo> >

Constructor
ℂ	ARDOUR.PluginInfoList ()
Methods
LuaTable	add (LuaTable {PluginInfo})
PluginInfo	back ()
bool	empty ()
PluginInfo	front ()
LuaIter	iter ()
void	push_back (PluginInfo)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

↠ ARDOUR:PluginInsert

C‡: boost::shared_ptr< ARDOUR::PluginInsert >, boost::weak_ptr< ARDOUR::PluginInsert >

is-a: ARDOUR:Processor

Plugin inserts: send data through a plugin

Methods
void	activate ()
void	clear_stats ()
void	deactivate ()
void	enable (bool)
bool	enabled ()
unsigned int	get_count ()
LuaTable(bool, ...)	get_stats (long&, long&, double&, double&)
bool	has_sidechain ()
ChanMapping	input_map (unsigned int)
bool	is_channelstrip ()
bool	is_instrument ()
bool	isnil ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
ChanMapping	output_map (unsigned int)
Plugin	plugin (unsigned int)
bool	reset_parameters_to_default ()
void	set_input_map (unsigned int, ChanMapping)
void	set_output_map (unsigned int, ChanMapping)
void	set_thru_map (ChanMapping)
IO	sidechain_input ()
long	signal_latency ()
bool	strict_io_configured ()
ChanMapping	thru_map ()
PluginType	_type ()
bool	write_immediate_event (EventType, unsigned long, unsigned char*)

Inherited from ARDOUR:Processor

Methods
bool	active ()
long	capture_offset ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

ℕ ARDOUR.PluginType

Methods
std::string	name (PluginType, bool)

↠ ARDOUR:PolarityProcessor

C‡: boost::shared_ptr< ARDOUR::PolarityProcessor >, boost::weak_ptr< ARDOUR::PolarityProcessor >

is-a: ARDOUR:Processor

A mixer strip element - plugin, send, meter, etc

Methods
bool	isnil ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:Port

C‡: boost::shared_ptr< ARDOUR::Port >, boost::weak_ptr< ARDOUR::Port >

Methods
int	connect (std::string)
bool	connected ()
	Returns true if this port is connected to anything
bool	connected_to (std::string)
	o Port name Returns true if this port is connected to o, otherwise false.
int	disconnect (std::string)
int	disconnect_all ()
PortFlags	flags ()
	Returns flags
LuaTable(...)	get_connected_latency_range (LatencyRange&, bool)
bool	isnil ()
std::string	name ()
	Returns Port short name
bool	physically_connected ()
std::string	pretty_name (bool)
	Returns Port human readable name
LatencyRange	private_latency_range (bool)
LatencyRange	public_latency_range (bool)
bool	receives_input ()
	Returns true if this Port receives input, otherwise false
bool	sends_output ()
	Returns true if this Port sends output, otherwise false
Cast
AsyncMIDIPort	to_asyncmidiport ()
AudioPort	to_audioport ()
MidiPort	to_midiport ()

∅ ARDOUR:PortEngine

C‡: ARDOUR::PortEngine

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∁ ARDOUR:PortList

C‡: std::list<boost::shared_ptr<ARDOUR::Port> >

Constructor
ℂ	ARDOUR.PortList ()
Methods
Port	back ()
bool	empty ()
Port	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:PortManager

C‡: ARDOUR::PortManager

Methods
int	connect (std::string, std::string)
bool	connected (std::string)
int	disconnect (std::string, std::string)
int	disconnect_port (Port)
LuaTable(int, ...)	get_backend_ports (std::string, DataType, PortFlags, StringVector&)
LuaTable(int, ...)	get_connections (std::string, StringVector&)
void	get_physical_inputs (DataType, StringVector&, MidiPortFlags, MidiPortFlags)
void	get_physical_outputs (DataType, StringVector&, MidiPortFlags, MidiPortFlags)
Port	get_port_by_name (std::string)
	name Full or short name of port Returns Corresponding Port or 0.
LuaTable(int, ...)	get_ports (DataType, PortList&)
std::string	get_pretty_name_by_name (std::string)
ChanCount	n_physical_inputs ()
ChanCount	n_physical_outputs ()
bool	physically_connected (std::string)
PortEngine	port_engine ()
bool	port_is_physical (std::string)
void	reset_input_meters ()

↠ ARDOUR:PortSet

C‡: boost::shared_ptr< ARDOUR::PortSet >, boost::weak_ptr< ARDOUR::PortSet >

An ordered list of Ports, possibly of various types.

This allows access to all the ports as a list, ignoring type, or accessing the nth port of a given type. Note that port(n) and nth_audio_port(n) may NOT return the same port.

Each port is held twice; once in a per-type vector of vectors (_ports) and once in a vector of all port (_all_ports). This is to speed up the fairly common case of iterating over all ports.

Methods
void	add (Port)
void	clear ()
	Remove all ports from the PortSet. Ports are not deregistered with the engine, it's the caller's responsibility to not leak here!
bool	contains (Port)
bool	empty ()
bool	isnil ()
unsigned long	num_ports (DataType)
Port	port (DataType, unsigned long)
	nth port of type t, or nth port if t = NIL t data type index port index
bool	remove (Port)

∁ ARDOUR:PresentationInfo

C‡: ARDOUR::PresentationInfo

is-a: PBD:Stateful

Base class for objects with saveable and undoable state

Methods
unsigned int	color ()
Flag	flags ()
unsigned int	order ()
void	set_color (unsigned int)
bool	special (bool)

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:PresetRecord

C‡: ARDOUR::Plugin::PresetRecord

Constructor
ℂ	ARDOUR.PresetRecord ()
Data Members
std::string	label
std::string	uri
bool	user
bool	valid

∁ ARDOUR:PresetVector

C‡: std::vector<ARDOUR::Plugin::PresetRecord >

Constructor
ℂ	ARDOUR.PresetVector ()
ℂ	ARDOUR.PresetVector ()
Methods
LuaTable	add (LuaTable {PresetRecord})
PresetRecord	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (PresetRecord)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

↠ ARDOUR:Processor

C‡: boost::shared_ptr< ARDOUR::Processor >, boost::weak_ptr< ARDOUR::Processor >

is-a: ARDOUR:SessionObjectPtr

A mixer strip element - plugin, send, meter, etc

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
bool	isnil ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:ProcessorList

C‡: std::list<boost::shared_ptr<ARDOUR::Processor> >

Constructor
ℂ	ARDOUR.ProcessorList ()
Methods
LuaTable	add (LuaTable {Processor})
Processor	back ()
bool	empty ()
Processor	front ()
LuaIter	iter ()
void	push_back (Processor)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

∁ ARDOUR:ProcessorVector

C‡: std::vector<boost::shared_ptr<ARDOUR::Processor> >

Constructor
ℂ	ARDOUR.ProcessorVector ()
ℂ	ARDOUR.ProcessorVector ()
Methods
LuaTable	add (LuaTable {Processor})
Processor	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (Processor)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

∅ ARDOUR:Progress

C‡: ARDOUR::Progress

A class to handle reporting of progress of something

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∅ ARDOUR:Properties:BoolProperty

C‡: PBD::PropertyDescriptor<bool>

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∅ ARDOUR:Properties:FloatProperty

C‡: PBD::PropertyDescriptor<float>

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∅ ARDOUR:Properties:SampleposProperty

C‡: PBD::PropertyDescriptor<long>

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∁ ARDOUR:PropertyChange

C‡: PBD::PropertyChange

A list of IDs of Properties that have changed in some situation or other

Methods
bool	containsBool (BoolProperty)
bool	containsFloat (FloatProperty)
bool	containsSamplePos (SampleposProperty)

∅ ARDOUR:PropertyList

C‡: PBD::PropertyList

A list of properties, mapped using their ID

This class object is only used indirectly as return-value and function-parameter. It provides no methods by itself.

∁ ARDOUR:RCConfiguration

C‡: ARDOUR::RCConfiguration

is-a: PBD:Configuration

Base class for objects with saveable and undoable state

Methods
AFLPosition	get_afl_position ()
bool	get_all_safe ()
bool	get_allow_special_bus_removal ()
bool	get_ask_replace_instrument ()
bool	get_ask_setup_instrument ()
float	get_audio_capture_buffer_seconds ()
float	get_audio_playback_buffer_seconds ()
std::string	get_auditioner_output_left ()
std::string	get_auditioner_output_right ()
bool	get_auto_analyse_audio ()
bool	get_auto_connect_standard_busses ()
bool	get_auto_input_does_talkback ()
bool	get_auto_return_after_rewind_ffwd ()
AutoReturnTarget	get_auto_return_target_list ()
bool	get_automation_follows_regions ()
float	get_automation_interval_msecs ()
double	get_automation_thinning_factor ()
BufferingPreset	get_buffering_preset ()
std::string	get_click_emphasis_sound ()
float	get_click_gain ()
bool	get_click_record_only ()
std::string	get_click_sound ()
bool	get_clicking ()
bool	get_conceal_lv1_if_lv2_exists ()
bool	get_conceal_vst2_if_vst3_exists ()
bool	get_copy_demo_sessions ()
int	get_cpu_dma_latency ()
bool	get_create_xrun_marker ()
FadeShape	get_default_fade_shape ()
std::string	get_default_session_parent_dir ()
DenormalModel	get_denormal_model ()
bool	get_denormal_protection ()
bool	get_disable_disarm_during_roll ()
bool	get_discover_plugins_on_start ()
unsigned int	get_disk_choice_space_threshold ()
std::string	get_donate_url ()
EditMode	get_edit_mode ()
bool	get_exclusive_solo ()
float	get_export_preroll ()
float	get_export_silence_threshold ()
unsigned int	get_feedback_interval_ms ()
bool	get_first_midi_bank_is_zero ()
std::string	get_freesound_download_dir ()
bool	get_hide_dummy_backend ()
bool	get_hiding_groups_deactivates_groups ()
int	get_history_depth ()
int	get_initial_program_change ()
AutoConnectOption	get_input_auto_connect ()
int	get_inter_scene_gap_samples ()
bool	get_latched_record_enable ()
LayerModel	get_layer_model ()
unsigned int	get_limit_n_automatables ()
bool	get_link_send_and_route_panner ()
std::string	get_linux_pingback_url ()
ListenPosition	get_listen_position ()
bool	get_locate_while_waiting_for_sync ()
LoopFadeChoice	get_loop_fade_choice ()
bool	get_loop_is_mode ()
std::string	get_ltc_output_port ()
float	get_ltc_output_volume ()
bool	get_ltc_send_continuously ()
float	get_max_gain ()
unsigned int	get_max_recent_sessions ()
unsigned int	get_max_recent_templates ()
float	get_max_transport_speed ()
float	get_meter_falloff ()
MeterType	get_meter_type_bus ()
MeterType	get_meter_type_master ()
MeterType	get_meter_type_track ()
std::string	get_midi_audition_synth_uri ()
bool	get_midi_clock_sets_tempo ()
bool	get_midi_feedback ()
bool	get_midi_input_follows_selection ()
float	get_midi_track_buffer_seconds ()
unsigned int	get_minimum_disk_read_bytes ()
unsigned int	get_minimum_disk_write_bytes ()
bool	get_mmc_control ()
int	get_mmc_receive_device_id ()
int	get_mmc_send_device_id ()
std::string	get_monitor_bus_preferred_bundle ()
MonitorModel	get_monitoring_model ()
int	get_mtc_qf_speed_tolerance ()
bool	get_mute_affects_control_outs ()
bool	get_mute_affects_main_outs ()
bool	get_mute_affects_post_fader ()
bool	get_mute_affects_pre_fader ()
bool	get_new_plugins_active ()
unsigned int	get_osc_port ()
std::string	get_osx_pingback_url ()
AutoConnectOption	get_output_auto_connect ()
unsigned int	get_periodic_safety_backup_interval ()
bool	get_periodic_safety_backups ()
PFLPosition	get_pfl_position ()
unsigned int	get_plugin_cache_version ()
std::string	get_plugin_path_lxvst ()
std::string	get_plugin_path_vst ()
std::string	get_plugin_path_vst3 ()
unsigned int	get_plugin_scan_timeout ()
bool	get_plugins_stop_with_transport ()
long	get_postroll ()
long	get_preroll ()
float	get_preroll_seconds ()
int	get_processor_usage ()
bool	get_quieten_at_speed ()
long	get_range_location_minimum ()
RangeSelectionAfterSplit	get_range_selection_after_split ()
bool	get_recording_resets_xrun_count ()
std::string	get_reference_manual_url ()
bool	get_region_boundaries_from_onscreen_tracks ()
bool	get_region_boundaries_from_selected_tracks ()
RegionEquivalence	get_region_equivalence ()
RegionSelectionAfterSplit	get_region_selection_after_split ()
bool	get_replicate_missing_region_channels ()
bool	get_reset_default_speed_on_stop ()
bool	get_rewind_ffwd_like_tape_decks ()
bool	get_run_all_transport_masters_always ()
bool	get_save_history ()
int	get_saved_history_depth ()
bool	get_send_ltc ()
bool	get_send_midi_clock ()
bool	get_send_mmc ()
bool	get_send_mtc ()
bool	get_show_solo_mutes ()
bool	get_show_video_export_info ()
bool	get_show_video_server_dialog ()
bool	get_show_vst3_micro_edit_inline ()
float	get_shuttle_max_speed ()
float	get_shuttle_speed_factor ()
float	get_shuttle_speed_threshold ()
ShuttleUnits	get_shuttle_units ()
bool	get_skip_playback ()
bool	get_solo_control_is_listen_control ()
float	get_solo_mute_gain ()
bool	get_solo_mute_override ()
bool	get_stop_at_session_end ()
bool	get_stop_recording_on_xrun ()
bool	get_strict_io ()
bool	get_timecode_sync_frame_rate ()
bool	get_trace_midi_input ()
bool	get_trace_midi_output ()
TracksAutoNamingRule	get_tracks_auto_naming ()
float	get_transient_sensitivity ()
bool	get_transport_masters_just_roll_when_sync_lost ()
bool	get_try_autostart_engine ()
std::string	get_tutorial_manual_url ()
std::string	get_updates_url ()
bool	get_use_audio_units ()
bool	get_use_click_emphasis ()
bool	get_use_lxvst ()
bool	get_use_macvst ()
bool	get_use_master_volume ()
bool	get_use_monitor_bus ()
bool	get_use_osc ()
bool	get_use_plugin_own_gui ()
bool	get_use_tranzport ()
bool	get_use_vst3 ()
bool	get_use_windows_vst ()
bool	get_verbose_plugin_scan ()
bool	get_verify_remove_last_capture ()
bool	get_video_advanced_setup ()
std::string	get_video_server_docroot ()
std::string	get_video_server_url ()
std::string	get_windows_pingback_url ()
bool	get_work_around_jack_no_copy_optimization ()
std::string	get_xjadeo_binary ()
bool	set_afl_position (AFLPosition)
bool	set_all_safe (bool)
bool	set_allow_special_bus_removal (bool)
bool	set_ask_replace_instrument (bool)
bool	set_ask_setup_instrument (bool)
bool	set_audio_capture_buffer_seconds (float)
bool	set_audio_playback_buffer_seconds (float)
bool	set_auditioner_output_left (std::string)
bool	set_auditioner_output_right (std::string)
bool	set_auto_analyse_audio (bool)
bool	set_auto_connect_standard_busses (bool)
bool	set_auto_input_does_talkback (bool)
bool	set_auto_return_after_rewind_ffwd (bool)
bool	set_auto_return_target_list (AutoReturnTarget)
bool	set_automation_follows_regions (bool)
bool	set_automation_interval_msecs (float)
bool	set_automation_thinning_factor (double)
bool	set_buffering_preset (BufferingPreset)
bool	set_click_emphasis_sound (std::string)
bool	set_click_gain (float)
bool	set_click_record_only (bool)
bool	set_click_sound (std::string)
bool	set_clicking (bool)
bool	set_conceal_lv1_if_lv2_exists (bool)
bool	set_conceal_vst2_if_vst3_exists (bool)
bool	set_copy_demo_sessions (bool)
bool	set_cpu_dma_latency (int)
bool	set_create_xrun_marker (bool)
bool	set_default_fade_shape (FadeShape)
bool	set_default_session_parent_dir (std::string)
bool	set_denormal_model (DenormalModel)
bool	set_denormal_protection (bool)
bool	set_disable_disarm_during_roll (bool)
bool	set_discover_plugins_on_start (bool)
bool	set_disk_choice_space_threshold (unsigned int)
bool	set_donate_url (std::string)
bool	set_edit_mode (EditMode)
bool	set_exclusive_solo (bool)
bool	set_export_preroll (float)
bool	set_export_silence_threshold (float)
bool	set_feedback_interval_ms (unsigned int)
bool	set_first_midi_bank_is_zero (bool)
bool	set_freesound_download_dir (std::string)
bool	set_hide_dummy_backend (bool)
bool	set_hiding_groups_deactivates_groups (bool)
bool	set_history_depth (int)
bool	set_initial_program_change (int)
bool	set_input_auto_connect (AutoConnectOption)
bool	set_inter_scene_gap_samples (int)
bool	set_latched_record_enable (bool)
bool	set_layer_model (LayerModel)
bool	set_limit_n_automatables (unsigned int)
bool	set_link_send_and_route_panner (bool)
bool	set_linux_pingback_url (std::string)
bool	set_listen_position (ListenPosition)
bool	set_locate_while_waiting_for_sync (bool)
bool	set_loop_fade_choice (LoopFadeChoice)
bool	set_loop_is_mode (bool)
bool	set_ltc_output_port (std::string)
bool	set_ltc_output_volume (float)
bool	set_ltc_send_continuously (bool)
bool	set_max_gain (float)
bool	set_max_recent_sessions (unsigned int)
bool	set_max_recent_templates (unsigned int)
bool	set_max_transport_speed (float)
bool	set_meter_falloff (float)
bool	set_meter_type_bus (MeterType)
bool	set_meter_type_master (MeterType)
bool	set_meter_type_track (MeterType)
bool	set_midi_audition_synth_uri (std::string)
bool	set_midi_clock_sets_tempo (bool)
bool	set_midi_feedback (bool)
bool	set_midi_input_follows_selection (bool)
bool	set_midi_track_buffer_seconds (float)
bool	set_minimum_disk_read_bytes (unsigned int)
bool	set_minimum_disk_write_bytes (unsigned int)
bool	set_mmc_control (bool)
bool	set_mmc_receive_device_id (int)
bool	set_mmc_send_device_id (int)
bool	set_monitor_bus_preferred_bundle (std::string)
bool	set_monitoring_model (MonitorModel)
bool	set_mtc_qf_speed_tolerance (int)
bool	set_mute_affects_control_outs (bool)
bool	set_mute_affects_main_outs (bool)
bool	set_mute_affects_post_fader (bool)
bool	set_mute_affects_pre_fader (bool)
bool	set_new_plugins_active (bool)
bool	set_osc_port (unsigned int)
bool	set_osx_pingback_url (std::string)
bool	set_output_auto_connect (AutoConnectOption)
bool	set_periodic_safety_backup_interval (unsigned int)
bool	set_periodic_safety_backups (bool)
bool	set_pfl_position (PFLPosition)
bool	set_plugin_cache_version (unsigned int)
bool	set_plugin_path_lxvst (std::string)
bool	set_plugin_path_vst (std::string)
bool	set_plugin_path_vst3 (std::string)
bool	set_plugin_scan_timeout (unsigned int)
bool	set_plugins_stop_with_transport (bool)
bool	set_postroll (long)
bool	set_preroll (long)
bool	set_preroll_seconds (float)
bool	set_processor_usage (int)
bool	set_quieten_at_speed (bool)
bool	set_range_location_minimum (long)
bool	set_range_selection_after_split (RangeSelectionAfterSplit)
bool	set_recording_resets_xrun_count (bool)
bool	set_reference_manual_url (std::string)
bool	set_region_boundaries_from_onscreen_tracks (bool)
bool	set_region_boundaries_from_selected_tracks (bool)
bool	set_region_equivalence (RegionEquivalence)
bool	set_region_selection_after_split (RegionSelectionAfterSplit)
bool	set_replicate_missing_region_channels (bool)
bool	set_reset_default_speed_on_stop (bool)
bool	set_rewind_ffwd_like_tape_decks (bool)
bool	set_run_all_transport_masters_always (bool)
bool	set_save_history (bool)
bool	set_saved_history_depth (int)
bool	set_send_ltc (bool)
bool	set_send_midi_clock (bool)
bool	set_send_mmc (bool)
bool	set_send_mtc (bool)
bool	set_show_solo_mutes (bool)
bool	set_show_video_export_info (bool)
bool	set_show_video_server_dialog (bool)
bool	set_show_vst3_micro_edit_inline (bool)
bool	set_shuttle_max_speed (float)
bool	set_shuttle_speed_factor (float)
bool	set_shuttle_speed_threshold (float)
bool	set_shuttle_units (ShuttleUnits)
bool	set_skip_playback (bool)
bool	set_solo_control_is_listen_control (bool)
bool	set_solo_mute_gain (float)
bool	set_solo_mute_override (bool)
bool	set_stop_at_session_end (bool)
bool	set_stop_recording_on_xrun (bool)
bool	set_strict_io (bool)
bool	set_timecode_sync_frame_rate (bool)
bool	set_trace_midi_input (bool)
bool	set_trace_midi_output (bool)
bool	set_tracks_auto_naming (TracksAutoNamingRule)
bool	set_transient_sensitivity (float)
bool	set_transport_masters_just_roll_when_sync_lost (bool)
bool	set_try_autostart_engine (bool)
bool	set_tutorial_manual_url (std::string)
bool	set_updates_url (std::string)
bool	set_use_audio_units (bool)
bool	set_use_click_emphasis (bool)
bool	set_use_lxvst (bool)
bool	set_use_macvst (bool)
bool	set_use_master_volume (bool)
bool	set_use_monitor_bus (bool)
bool	set_use_osc (bool)
bool	set_use_plugin_own_gui (bool)
bool	set_use_tranzport (bool)
bool	set_use_vst3 (bool)
bool	set_use_windows_vst (bool)
bool	set_verbose_plugin_scan (bool)
bool	set_verify_remove_last_capture (bool)
bool	set_video_advanced_setup (bool)
bool	set_video_server_docroot (std::string)
bool	set_video_server_url (std::string)
bool	set_windows_pingback_url (std::string)
bool	set_work_around_jack_no_copy_optimization (bool)
bool	set_xjadeo_binary (std::string)
Properties
ARDOUR.AFLPosition	afl_position
bool	all_safe
bool	allow_special_bus_removal
bool	ask_replace_instrument
bool	ask_setup_instrument
float	audio_capture_buffer_seconds
float	audio_playback_buffer_seconds
std::string	auditioner_output_left
std::string	auditioner_output_right
bool	auto_analyse_audio
bool	auto_connect_standard_busses
bool	auto_input_does_talkback
bool	auto_return_after_rewind_ffwd
ARDOUR.AutoReturnTarget	auto_return_target_list
bool	automation_follows_regions
float	automation_interval_msecs
double	automation_thinning_factor
ARDOUR.BufferingPreset	buffering_preset
std::string	click_emphasis_sound
float	click_gain
bool	click_record_only
std::string	click_sound
bool	clicking
bool	conceal_lv1_if_lv2_exists
bool	conceal_vst2_if_vst3_exists
bool	copy_demo_sessions
int	cpu_dma_latency
bool	create_xrun_marker
ARDOUR.FadeShape	default_fade_shape
std::string	default_session_parent_dir
ARDOUR.DenormalModel	denormal_model
bool	denormal_protection
bool	disable_disarm_during_roll
bool	discover_plugins_on_start
unsigned int	disk_choice_space_threshold
std::string	donate_url
ARDOUR.EditMode	edit_mode
bool	exclusive_solo
float	export_preroll
float	export_silence_threshold
unsigned int	feedback_interval_ms
bool	first_midi_bank_is_zero
std::string	freesound_download_dir
bool	hide_dummy_backend
bool	hiding_groups_deactivates_groups
int	history_depth
int	initial_program_change
ARDOUR.AutoConnectOption	input_auto_connect
int	inter_scene_gap_samples
bool	latched_record_enable
ARDOUR.LayerModel	layer_model
unsigned int	limit_n_automatables
bool	link_send_and_route_panner
std::string	linux_pingback_url
ARDOUR.ListenPosition	listen_position
bool	locate_while_waiting_for_sync
ARDOUR.LoopFadeChoice	loop_fade_choice
bool	loop_is_mode
std::string	ltc_output_port
float	ltc_output_volume
bool	ltc_send_continuously
float	max_gain
unsigned int	max_recent_sessions
unsigned int	max_recent_templates
float	max_transport_speed
float	meter_falloff
ARDOUR.MeterType	meter_type_bus
ARDOUR.MeterType	meter_type_master
ARDOUR.MeterType	meter_type_track
std::string	midi_audition_synth_uri
bool	midi_clock_sets_tempo
bool	midi_feedback
bool	midi_input_follows_selection
float	midi_track_buffer_seconds
unsigned int	minimum_disk_read_bytes
unsigned int	minimum_disk_write_bytes
bool	mmc_control
int	mmc_receive_device_id
int	mmc_send_device_id
std::string	monitor_bus_preferred_bundle
ARDOUR.MonitorModel	monitoring_model
int	mtc_qf_speed_tolerance
bool	mute_affects_control_outs
bool	mute_affects_main_outs
bool	mute_affects_post_fader
bool	mute_affects_pre_fader
bool	new_plugins_active
unsigned int	osc_port
std::string	osx_pingback_url
ARDOUR.AutoConnectOption	output_auto_connect
unsigned int	periodic_safety_backup_interval
bool	periodic_safety_backups
ARDOUR.PFLPosition	pfl_position
unsigned int	plugin_cache_version
std::string	plugin_path_lxvst
std::string	plugin_path_vst
std::string	plugin_path_vst3
unsigned int	plugin_scan_timeout
bool	plugins_stop_with_transport
long	postroll
long	preroll
float	preroll_seconds
int	processor_usage
bool	quieten_at_speed
long	range_location_minimum
ARDOUR.RangeSelectionAfterSplit	range_selection_after_split
bool	recording_resets_xrun_count
std::string	reference_manual_url
bool	region_boundaries_from_onscreen_tracks
bool	region_boundaries_from_selected_tracks
ARDOUR.RegionEquivalence	region_equivalence
ARDOUR.RegionSelectionAfterSplit	region_selection_after_split
bool	replicate_missing_region_channels
bool	reset_default_speed_on_stop
bool	rewind_ffwd_like_tape_decks
bool	run_all_transport_masters_always
bool	save_history
int	saved_history_depth
bool	send_ltc
bool	send_midi_clock
bool	send_mmc
bool	send_mtc
bool	show_solo_mutes
bool	show_video_export_info
bool	show_video_server_dialog
bool	show_vst3_micro_edit_inline
float	shuttle_max_speed
float	shuttle_speed_factor
float	shuttle_speed_threshold
ARDOUR.ShuttleUnits	shuttle_units
bool	skip_playback
bool	solo_control_is_listen_control
float	solo_mute_gain
bool	solo_mute_override
bool	stop_at_session_end
bool	stop_recording_on_xrun
bool	strict_io
bool	timecode_sync_frame_rate
bool	trace_midi_input
bool	trace_midi_output
ARDOUR.TracksAutoNamingRule	tracks_auto_naming
float	transient_sensitivity
bool	transport_masters_just_roll_when_sync_lost
bool	try_autostart_engine
std::string	tutorial_manual_url
std::string	updates_url
bool	use_audio_units
bool	use_click_emphasis
bool	use_lxvst
bool	use_macvst
bool	use_master_volume
bool	use_monitor_bus
bool	use_osc
bool	use_plugin_own_gui
bool	use_tranzport
bool	use_vst3
bool	use_windows_vst
bool	verbose_plugin_scan
bool	verify_remove_last_capture
bool	video_advanced_setup
std::string	video_server_docroot
std::string	video_server_url
std::string	windows_pingback_url
bool	work_around_jack_no_copy_optimization
std::string	xjadeo_binary

Inherited from PBD:Stateful

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

∁ ARDOUR:RawMidiParser

C‡: ARDOUR::RawMidiParser

Constructor
ℂ	ARDOUR.RawMidiParser ()
Methods
unsigned long	buffer_size ()
unsigned char*	midi_buffer ()
bool	process_byte (unsigned char)
void	reset ()

↠ ARDOUR:ReadOnlyControl

C‡: boost::shared_ptr< ARDOUR::ReadOnlyControl >, boost::weak_ptr< ARDOUR::ReadOnlyControl >

is-a: PBD:StatefulDestructiblePtr

Methods
ParameterDescriptor	desc ()
std::string	describe_parameter ()
double	get_parameter ()
bool	isnil ()

Inherited from PBD:StatefulPtr

Methods
void	clear_changes ()
	Forget about any changes to this object's properties
ID	id ()
OwnedPropertyList	properties ()

↠ ARDOUR:Readable

C‡: boost::shared_ptr< ARDOUR::Readable >, boost::weak_ptr< ARDOUR::Readable >

Methods
bool	isnil ()
ReadableList	load (Session&, std::string)
unsigned int	n_channels ()
long	read (FloatArray, long, long, int)
long	readable_length ()

∁ ARDOUR:ReadableList

C‡: std::vector<boost::shared_ptr<ARDOUR::Readable> >

Constructor
ℂ	ARDOUR.ReadableList ()
ℂ	ARDOUR.ReadableList ()
Methods
LuaTable	add (LuaTable {Readable})
Readable	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (Readable)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

↠ ARDOUR:Region

C‡: boost::shared_ptr< ARDOUR::Region >, boost::weak_ptr< ARDOUR::Region >

is-a: ARDOUR:SessionObjectPtr

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
bool	at_natural_position ()
bool	automatic ()
bool	can_move ()
bool	captured ()
void	captured_xruns (XrunPositions&, bool)
void	clear_sync_position ()
Control	control (Parameter, bool)
bool	covers (long)
void	cut_end (long, int)
void	cut_front (long, int)
DataType	data_type ()
bool	external ()
bool	has_transients ()
bool	hidden ()
bool	import ()
bool	is_compound ()
bool	isnil ()
unsigned int	layer ()
long	length ()
bool	locked ()
void	lower ()
void	lower_to_bottom ()
StringVector	master_source_names ()
SourceList	master_sources ()
void	move_start (long, int)
void	move_to_natural_position ()
bool	muted ()
unsigned int	n_channels ()
void	nudge_position (long)
bool	opaque ()
Playlist	playlist ()
long	position ()
	How the region parameters play together: POSITION: first sample of the region along the timeline START: first sample of the region within its source(s) LENGTH: number of samples the region represents
bool	position_locked ()
double	quarter_note ()
void	raise ()
void	raise_to_top ()
void	set_hidden (bool)
void	set_initial_position (long)
	A gui may need to create a region, then place it in an initial position determined by the user. When this takes place within one gui operation, we have to reset _last_position to prevent an implied move.
void	set_length (long, int)
void	set_locked (bool)
void	set_muted (bool)
bool	set_name (std::string)
	Note: changing the name of a Region does not constitute an edit
void	set_opaque (bool)
void	set_position (long, int)
void	set_position_locked (bool)
void	set_start (long)
void	set_sync_position (long)
	Set the region's sync point. absolute_pos Session time.
void	set_video_locked (bool)
float	shift ()
Source	source (unsigned int)
long	start ()
float	stretch ()
bool	sync_marked ()
LuaTable(long, ...)	sync_offset (int&)
long	sync_position ()
	Returns Sync position in session time
Int64List	transients ()
void	trim_end (long, int)
void	trim_front (long, int)
void	trim_to (long, long, int)
bool	video_locked ()
bool	whole_file ()
Cast
AudioRegion	to_audioregion ()
MidiRegion	to_midiregion ()
Readable	to_readable ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:RegionFactory

C‡: ARDOUR::RegionFactory

Methods
Region	clone_region (Region, bool, bool)
Region	region_by_id (ID)
RegionMap	regions ()

∁ ARDOUR:RegionList

C‡: std::list<boost::shared_ptr<ARDOUR::Region> >

Constructor
ℂ	ARDOUR.RegionList ()
Methods
Region	back ()
bool	empty ()
Region	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:RegionListPtr

C‡: boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Region> > >

Constructor
ℂ	ARDOUR.RegionListPtr ()
Methods
LuaTable	add (LuaTable {Region})
bool	empty ()
LuaIter	iter ()
void	push_back (Region)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

∁ ARDOUR:RegionMap

C‡: std::map<PBD::ID, boost::shared_ptr<ARDOUR::Region> > >

Constructor
ℂ	ARDOUR.RegionMap ()
Methods
LuaTable	add (LuaTable {Region})
...	at (--lua--)
void	clear ()
unsigned long	count (ID)
bool	empty ()
LuaIter	iter ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:RegionVector

C‡: std::vector<boost::shared_ptr<ARDOUR::Region> >

Constructor
ℂ	ARDOUR.RegionVector ()
ℂ	ARDOUR.RegionVector ()
Methods
LuaTable	add (LuaTable {Region})
Region	at (unsigned long)
void	clear ()
bool	empty ()
LuaIter	iter ()
void	push_back (Region)
unsigned long	size ()
LuaTable	table ()
...	to_array (--lua--)

↠ ARDOUR:Return

C‡: boost::shared_ptr< ARDOUR::Return >, boost::weak_ptr< ARDOUR::Return >

is-a: ARDOUR:IOProcessor

A mixer strip element (Processor) with 1 or 2 IO elements.

Methods
bool	isnil ()

Inherited from ARDOUR:IOProcessor

Methods
IO	input ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

↠ ARDOUR:Route

C‡: boost::shared_ptr< ARDOUR::Route >, boost::weak_ptr< ARDOUR::Route >

is-a: ARDOUR:Stripable

A named object associated with a Session. Objects derived from this class are expected to be destroyed before the session calls drop_references().

Methods
bool	active ()
int	add_aux_send (Route, Processor)
	Add an aux send to a route. route route to send to. before Processor to insert before, or 0 to insert at the end.
int	add_foldback_send (Route, bool)
int	add_processor_by_index (Processor, int, ProcessorStreams, bool)
	Add a processor to a route such that it ends up with a given index into the visible processors. index Index to add the processor at, or -1 to add at the end of the list. Returns 0 on success, non-0 on failure.
bool	add_sidechain (Processor)
Amp	amp ()
std::string	comment ()
bool	customize_plugin_insert (Processor, unsigned int, ChanCount, ChanCount)
	enable custom plugin-insert configuration proc Processor to customize count number of plugin instances to use (if zero, reset to default) outs output port customization sinks input pins for variable-I/O plugins Returns true if successful
DataType	data_type ()
IO	input ()
bool	isnil ()
Delivery	main_outs ()
	the signal processorat at end of the processing chain which produces output
MonitorControl	monitoring_control ()
MonitorState	monitoring_state ()
bool	muted ()
ChanCount	n_inputs ()
ChanCount	n_outputs ()
Processor	nth_plugin (unsigned int)
Processor	nth_processor (unsigned int)
Processor	nth_send (unsigned int)
IO	output ()
PannerShell	panner_shell ()
PeakMeter	peak_meter ()
	*********************************************************** Pure interface begins here***********************************************************
long	playback_latency (bool)
int	remove_processor (Processor, ProcessorStreams, bool)
	remove plugin/processor proc processor to remove err error report (index where removal vailed, channel-count why it failed) may be nil need_process_lock if locking is required (set to true, unless called from RT context with lock) Returns 0 on success
int	remove_processors (ProcessorList, ProcessorStreams)
bool	remove_sidechain (Processor)
int	reorder_processors (ProcessorList, ProcessorStreams)
int	replace_processor (Processor, Processor, ProcessorStreams)
	replace plugin/processor with another old processor to remove sub processor to substitute the old one with err error report (index where removal vailed, channel-count why it failed) may be nil Returns 0 on success
bool	reset_plugin_insert (Processor)
	reset plugin-insert configuration to default, disable customizations. This is equivalent to calling customize_plugin_insert (proc, 0, unused) proc Processor to reset Returns true if successful
void	set_active (bool, void*)
void	set_comment (std::string, void*)
void	set_meter_point (MeterPoint)
bool	set_name (std::string)
bool	set_strict_io (bool)
long	signal_latency ()
bool	soloed ()
bool	strict_io ()
Processor	the_instrument ()
	Return the first processor that accepts has at least one MIDI input and at least one audio output. In the vast majority of cases, this will be "the instrument". This does not preclude other MIDI->audio processors later in the processing chain, but that would be a special case not covered by this utility function.
Amp	trim ()
Cast
Track	to_track ()

Inherited from ARDOUR:Stripable

Methods
AutomationControl	comp_enable_controllable ()
AutomationControl	comp_makeup_controllable ()
AutomationControl	comp_mode_controllable ()
std::string	comp_mode_name (unsigned int)
ReadOnlyControl	comp_redux_controllable ()
AutomationControl	comp_speed_controllable ()
std::string	comp_speed_name (unsigned int)
AutomationControl	comp_threshold_controllable ()
unsigned int	eq_band_cnt ()
std::string	eq_band_name (unsigned int)
AutomationControl	eq_enable_controllable ()
AutomationControl	eq_freq_controllable (unsigned int)
AutomationControl	eq_gain_controllable (unsigned int)
AutomationControl	eq_q_controllable (unsigned int)
AutomationControl	eq_shape_controllable (unsigned int)
AutomationControl	filter_enable_controllable (bool)
AutomationControl	filter_freq_controllable (bool)
AutomationControl	filter_slope_controllable (bool)
GainControl	gain_control ()
bool	is_auditioner ()
bool	is_hidden ()
bool	is_master ()
bool	is_monitor ()
bool	is_private_route ()
bool	is_selected ()
AutomationControl	master_send_enable_controllable ()
MonitorProcessor	monitor_control ()
MuteControl	mute_control ()
AutomationControl	pan_azimuth_control ()
AutomationControl	pan_elevation_control ()
AutomationControl	pan_frontback_control ()
AutomationControl	pan_lfe_control ()
AutomationControl	pan_width_control ()
PhaseControl	phase_control ()
PresentationInfo	presentation_info_ptr ()
AutomationControl	rec_enable_control ()
AutomationControl	rec_safe_control ()
AutomationControl	send_enable_controllable (unsigned int)
AutomationControl	send_level_controllable (unsigned int)
std::string	send_name (unsigned int)
AutomationControl	send_pan_azimuth_controllable (unsigned int)
AutomationControl	send_pan_azimuth_enable_controllable (unsigned int)
void	set_presentation_order (unsigned int)
bool	slaved ()
bool	slaved_to (VCA)
SoloControl	solo_control ()
SoloIsolateControl	solo_isolate_control ()
SoloSafeControl	solo_safe_control ()
GainControl	trim_control ()
Cast
Automatable	to_automatable ()
Route	to_route ()
Slavable	to_slavable ()
VCA	to_vca ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:Route:ProcessorStreams

C‡: ARDOUR::Route::ProcessorStreams

A record of the stream configuration at some point in the processor list. Used to return where and why an processor list configuration request failed.

Constructor
ℂ	ARDOUR.Route.ProcessorStreams ()

∁ ARDOUR:RouteGroup

C‡: ARDOUR::RouteGroup

is-a: ARDOUR:SessionObject

A group identifier for routes.

RouteGroups permit to define properties which are shared among all Routes that use the given identifier.

A route can at most be in one group.

Methods
int	add (Route)
	Add a route to a group. Adding a route which is already in the group is allowed; nothing will happen. r Route to add.
void	clear ()
void	destroy_subgroup ()
bool	empty ()
int	group_master_number ()
bool	has_subgroup ()
bool	is_active ()
bool	is_color ()
bool	is_gain ()
bool	is_hidden ()
bool	is_monitoring ()
bool	is_mute ()
bool	is_recenable ()
bool	is_relative ()
bool	is_route_active ()
bool	is_select ()
bool	is_solo ()
void	make_subgroup (bool, Placement)
int	remove (Route)
unsigned int	rgba ()
RouteListPtr	route_list ()
void	set_active (bool, void*)
void	set_color (bool)
void	set_gain (bool)
void	set_hidden (bool, void*)
void	set_monitoring (bool)
void	set_mute (bool)
void	set_recenable (bool)
void	set_relative (bool, void*)
void	set_rgba (unsigned int)
	set route-group color and notify UI about change
void	set_route_active (bool)
void	set_select (bool)
void	set_solo (bool)
unsigned long	size ()

Inherited from ARDOUR:SessionObject

Methods
std::string	name ()
Cast
Stateful	to_stateful ()

∁ ARDOUR:RouteGroupList

C‡: std::list<ARDOUR::RouteGroup* >

Constructor
ℂ	ARDOUR.RouteGroupList ()
Methods
RouteGroup	back ()
bool	empty ()
RouteGroup	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:RouteList

C‡: std::list<boost::shared_ptr<ARDOUR::Route> >

Constructor
ℂ	ARDOUR.RouteList ()
Methods
Route	back ()
bool	empty ()
Route	front ()
LuaIter	iter ()
void	reverse ()
unsigned long	size ()
LuaTable	table ()

∁ ARDOUR:RouteListPtr

C‡: boost::shared_ptr<std::list<boost::shared_ptr<ARDOUR::Route> > >

Constructor
ℂ	ARDOUR.RouteListPtr ()
Methods
LuaTable	add (LuaTable {Route})
bool	empty ()
LuaIter	iter ()
void	push_back (Route)
void	reverse ()
unsigned long	size ()
LuaTable	table ()
void	unique ()

↠ ARDOUR:Send

C‡: boost::shared_ptr< ARDOUR::Send >, boost::weak_ptr< ARDOUR::Send >

is-a: ARDOUR:Delivery

A mixer strip element (Processor) with 1 or 2 IO elements.

Methods
GainControl	gain_control ()
long	get_delay_in ()
long	get_delay_out ()
bool	is_foldback ()
bool	isnil ()
void	set_remove_on_disconnect (bool)
Cast
InternalSend	to_internalsend ()

Inherited from ARDOUR:Delivery

Methods
PannerShell	panner_shell ()

Inherited from ARDOUR:IOProcessor

Methods
IO	input ()
ChanCount	natural_input_streams ()
ChanCount	natural_output_streams ()
IO	output ()

Inherited from ARDOUR:Processor

Methods
void	activate ()
bool	active ()
long	capture_offset ()
void	deactivate ()
std::string	display_name ()
bool	display_to_user ()
long	input_latency ()
ChanCount	input_streams ()
long	output_latency ()
ChanCount	output_streams ()
long	playback_offset ()
long	signal_latency ()
Cast
Amp	to_amp ()
Automatable	to_automatable ()
DelayLine	to_delayline ()
DiskIOProcessor	to_diskioprocessor ()
DiskReader	to_diskreader ()
DiskWriter	to_diskwriter ()
PluginInsert	to_insert ()
InternalSend	to_internalsend ()
IOProcessor	to_ioprocessor ()
Latent	to_latent ()
PeakMeter	to_meter ()
MonitorProcessor	to_monitorprocessor ()
PeakMeter	to_peakmeter ()
PluginInsert	to_plugininsert ()
PolarityProcessor	to_polarityprocessor ()
Send	to_send ()
SideChain	to_sidechain ()
UnknownProcessor	to_unknownprocessor ()

Inherited from ARDOUR:SessionObjectPtr

Methods
std::string	name ()
Cast
Stateful	to_stateful ()
StatefulDestructible	to_statefuldestructible ()

∁ ARDOUR:Session

C‡: ARDOUR::Session

Ardour Session

Methods
bool	abort_empty_reversible_command ()
	Abort reversible commend IFF no undo changes have been collected. Returns true if undo operation was aborted.
void	abort_reversible_command ()
	abort an open undo command This must only be called after begin_reversible_command ()
bool	actively_recording ()
double	actual_speed ()
void	add_command (Command)
void	add_internal_send (Route, Processor, Route)
void	add_internal_sends (Route, Placement, RouteListPtr)
int	add_master_bus (ChanCount)
StatefulDiffCommand	add_stateful_diff_command (StatefulDestructiblePtr)
	create an StatefulDiffCommand from the given object and add it to the stack. This function must only be called after begin_reversible_command. Failing to do so may lead to a crash. sfd the object to diff Returns the allocated StatefulDiffCommand (already added via add_command)
void	begin_reversible_command (std::string)
	begin collecting undo information This call must always be followed by either begin_reversible_command() or commit_reversible_command() cmd_name human readable name for the undo operation
BundleListPtr	bundles ()
void	cancel_all_solo ()
SessionConfiguration	cfg ()
void	clear_all_solo_state (RouteListPtr)
bool	collected_undo_commands ()
	Test if any undo commands were added since the call to begin_reversible_command () This is is useful to determine if an undoable action was performed before adding additional information (e.g. selection changes) to the undo transaction. Returns true if undo operation is valid but empty
void	commit_reversible_command (Command)
	finalize an undo command and commit pending transactions This must only be called after begin_reversible_command () cmd (additional) command to add
Controllable	controllable_by_id (ID)
long	current_end_sample ()
long	current_start_sample ()
void	disable_record (bool, bool)
AudioEngine	engine ()
double	engine_speed ()
bool	export_track_state (RouteListPtr, std::string)
unsigned int	get_block_size ()
bool	get_play_loop ()
Route	get_remote_nth_route (unsigned int)
Stripable	get_remote_nth_stripable (unsigned int, Flag)
RouteList	get_routelist (bool, Flag)
RouteListPtr	get_routes ()
BufferSet	get_scratch_buffers (ChanCount, bool)
BufferSet	get_silent_buffers (ChanCount)
StripableList	get_stripables ()
RouteListPtr	get_tracks ()
unsigned int	get_xrun_count ()
void	goto_end ()
void	goto_start (bool)
long	last_transport_start ()
bool	listening ()
Locations	locations ()
Route	master_out ()
void	maybe_enable_record (bool)
Route	monitor_out ()
std::string	name ()
RouteList	new_audio_route (int, int, RouteGroup, unsigned int, std::string, Flag, unsigned int)
AudioTrackList	new_audio_track (int, int, RouteGroup, unsigned int, std::string, unsigned int, TrackMode, bool)
RouteList	new_midi_route (RouteGroup, unsigned int, std::string, bool, PluginInfo, PresetRecord, Flag, unsigned int)
MidiTrackList	new_midi_track (ChanCount, ChanCount, bool, PluginInfo, PresetRecord, RouteGroup, unsigned int, std::string, unsigned int, TrackMode, bool)
RouteList	new_route_from_template (unsigned int, unsigned int, std::string, std::string, PlaylistDisposition)
RouteGroup	new_route_group (std::string)
long	nominal_sample_rate ()
	"native" sample rate of session, regardless of current audioengine rate, pullup/down etc
std::string	path ()
SessionPlaylists	playlists ()
bool	plot_process_graph (std::string)
Processor	processor_by_id (ID)
RecordState	record_status ()
void	remove_route_group (RouteGroup)
int	rename (std::string)
void	request_bounded_roll (long, long)
void	request_locate (long, LocateTransportDisposition, TransportRequestSource)
void	request_play_loop (bool, bool)
void	request_roll (TransportRequestSource)
void	request_stop (bool, bool, TransportRequestSource)
void	request_transport_speed (double, TransportRequestSource)
void	reset_xrun_count ()
Route	route_by_id (ID)
Route	route_by_name (std::string)
Route	route_by_selected_count (unsigned int)
RouteGroupList	route_groups ()
long	sample_rate ()
	"actual" sample rate of session, set by current audioengine rate, pullup/down etc.
...	sample_to_timecode_lua (--lua--)
double	samples_per_timecode_frame ()
int	save_state (std::string, bool, bool, bool, bool, bool)
	save session snapshot_name name of the session (use an empty string for the current name) pending save a 'recovery', not full state (default: false) switch_to_snapshot switch to given snapshot after saving (default: false) template_only save a session template (default: false) for_archive save only data relevant for session-archive only_used_assets skip Sources that are not used, mainly useful with `for_archive` Returns zero on success
void	scripts_changed ()
bool	session_range_is_free ()
void	set_control (AutomationControl, double, GroupControlDisposition)
void	set_controls (ControlListPtr, double, GroupControlDisposition)
void	set_dirty ()
void	set_exclusive_input_active (RouteListPtr, bool, bool)
void	set_session_range_is_free (bool)
std::string	snap_name ()
bool	solo_isolated ()
bool	soloing ()
Source	source_by_id (ID)
Stripable	stripable_by_id (ID)
TempoMap	tempo_map ()
bool	timecode_drop_frames ()
long	timecode_frames_per_hour ()
double	timecode_frames_per_second ()
...	timecode_to_sample_lua (--lua--)
bool	transport_rolling ()
	Returns true if the the transport is actively (audible) rolling. playback speed is not zero, and count-in as well as latency-preroll is complete, and _transport_sample changes every process cycle.
long	transport_sample ()
double	transport_speed ()
bool	transport_state_rolling ()
	Returns true if the transport state (TFSM) is rolling. Note: the transport may not yet move if pre-roll or count-in in ongoing.
bool	transport_stopped ()
	Returns true if the transport state (TFSM) is stopped
bool	transport_stopped_or_stopping ()
	Returns true if the transport state (TFSM) is stopped or stopping
bool	transport_will_roll_forwards ()
StringList	unknown_processors ()
VCAManager	vca_manager ()
long	worst_input_latency ()
long	worst_latency_preroll ()
long	worst_output_latency ()
long	worst_route_latency ()

∁ ARDOUR:SessionConfiguration

C‡: ARDOUR::SessionConfiguration

is-a: PBD:Configuration

Base class for objects with saveable and undoable state

Methods
std::string	get_audio_search_path ()
bool	get_auto_input ()
bool	get_auto_play ()
bool	get_auto_return ()
bool	get_count_in ()
bool	get_external_sync ()
bool	get_glue_new_markers_to_bars_and_beats ()
bool	get_glue_new_regions_to_bars_and_beats ()
InsertMergePolicy	get_insert_merge_policy ()
bool	get_jack_time_master ()
bool	get_layered_record_mode ()
unsigned int	get_meterbridge_label_height ()
bool	get_midi_copy_is_fork ()
std::string	get_midi_search_path ()
long	get_minitimeline_span ()
SampleFormat	get_native_file_data_format ()
HeaderFormat	get_native_file_header_format ()
bool	get_punch_in ()
bool	get_punch_out ()
std::string	get_raid_path ()
bool	get_realtime_export ()
MonitorChoice	get_session_monitoring ()
bool	get_show_busses_on_meterbridge ()
bool	get_show_group_tabs ()
bool	get_show_master_on_meterbridge ()
bool