C++ wrapper for mlt_transition — blends two tracks together. More...

#include <MltTransition.h>

Inheritance diagram for Mlt::Transition:

Collaboration diagram for Mlt::Transition:

[legend]

Public Member Functions
int	connect (Producer &producer, int a_track, int b_track)

int	connect (Service &service, int a_track, int b_track)

int	get_a_track ()
	Return the A-track index. More...

int	get_b_track ()
	Return the B-track index. More...

int	get_in ()
	Return the in-point frame number. More...

int	get_length ()
	Return the duration (out - in + 1). More...

int	get_out ()
	Return the out-point frame number. More...

int	get_position (Frame &frame)
	Return the current position of `frame` relative to the transition's in-point. More...

double	get_progress (Frame &frame)
	Return the playback progress in the range [0.0, 1.0]. More...

double	get_progress_delta (Frame &frame)
	Return the per-frame progress delta. More...

mlt_service	get_service () override

virtual mlt_transition	get_transition ()

Transition &	operator= (const Transition &transition)

void	set_in_and_out (int in, int out)
	Restrict this transition to the frame range [`in`, `out`]. More...

void	set_tracks (int a_track, int b_track)
	Set which tracks this transition blends (A = lower, B = upper). More...

	Transition ()

	Transition (const Transition &transition)

	Transition (mlt_profile profile, const char id, const char arg=NULL)

	Transition (mlt_transition transition)
	Wrap an existing mlt_transition handle. More...

	Transition (Profile &profile, const char id, const char arg=NULL)
	Construct and instantiate transition `id` from the repository. More...

	Transition (Service &transition)

	Transition (Transition &transition)

virtual	~Transition ()

Public Member Functions inherited from Mlt::Service
int	attach (Filter &filter)
	Attach `filter` to this service. More...

int	connect_producer (Service &producer, int index=0)
	Connect `producer` as the input at `index`. More...

Service *	consumer ()
	Return the downstream consumer service, or null. More...

int	detach (Filter &filter)
	Detach `filter` from this service. More...

int	disconnect_all_producers ()
	Disconnect all producer inputs. More...

int	disconnect_producer (int index=0)
	Disconnect the producer at `index`. More...

Filter *	filter (int index)
	Return the attached filter at `index`. More...

int	filter_count ()
	Return the number of attached filters. More...

Frame *	get_frame (int index=0)
	Pull and return frame `index` from this service. More...

mlt_profile	get_profile ()

virtual mlt_properties	get_properties () override

int	insert_producer (Service &producer, int index=0)
	Insert `producer` at `index`, shifting existing connections up. More...

void	lock ()
	Acquire the service mutex (use around property reads in render threads). More...

int	move_filter (int from, int to)
	Move the attached filter at position `from` to position `to`. More...

Service &	operator= (const Service &service)

Service *	producer ()
	Return the first upstream producer, or null. More...

Profile *	profile ()
	Return the profile associated with this service. More...

	Service ()

	Service (const Service &service)

	Service (mlt_service service)
	Wrap an existing mlt_service handle. More...

	Service (Service &service)

	Service (Service *service)

void	set_consumer (Service &service)

void	set_profile (mlt_profile profile)

void	set_profile (Profile &profile)

mlt_service_type	type ()
	Return the service sub-type (producer, filter, consumer, transition, etc.). More...

void	unlock ()
	Release the service mutex. More...

virtual	~Service ()

Public Member Functions inherited from Mlt::Properties
char *	anim_get (const char *name, int position, int length=0)

mlt_color	anim_get_color (const char *name, int position, int length=0)

double	anim_get_double (const char *name, int position, int length=0)

int	anim_get_int (const char *name, int position, int length=0)

mlt_rect	anim_get_rect (const char *name, int position, int length=0)

int	anim_set (const char name, const char value, int position, int length=0)

int	anim_set (const char *name, double value, int position, int length=0, mlt_keyframe_type keyframe_type=mlt_keyframe_linear)

int	anim_set (const char *name, int value, int position, int length=0, mlt_keyframe_type keyframe_type=mlt_keyframe_linear)

int	anim_set (const char *name, mlt_color value, int position, int length=0, mlt_keyframe_type keyframe_type=mlt_keyframe_linear)

int	anim_set (const char *name, mlt_rect value, int position, int length=0, mlt_keyframe_type keyframe_type=mlt_keyframe_linear)

void	block (void *object=NULL)
	Suppress event delivery to `object`. More...

void	clear (const char *name)

int	copy (Properties &that, const char *prefix)
	Copy all properties whose names begin with `prefix` from `that`. More...

int	count ()
	Return the number of name/value pairs stored. More...

void	debug (const char title="Object", FILE output=stderr)

int	dec_ref ()

void	dump (FILE *output=stderr)
	Write all properties to `output` as "name=value" lines. More...

int	fire_event (const char *event)
	Fire a named event manually. More...

char *	frames_to_time (int, mlt_time_format=mlt_time_smpte_df)

char *	get (const char *name)
	Get a string property value by name. More...

char *	get (int index)
	Return the property value at positional `index` as a string. More...

char *	get (int index, mlt_time_format)
	Return the property value at positional `index` in the given time format. More...

Animation *	get_anim (const char *name)

mlt_animation	get_animation (const char *name)

mlt_color	get_color (const char *name)

void *	get_data (const char *name)

void *	get_data (const char *name, int &size)
	Get opaque data stored by name; `size` receives the byte count. More...

void *	get_data (int index, int &size)

double	get_double (const char *name)
	Get a double property value by name. More...

int	get_int (const char *name)
	Get an integer property value by name. More...

int64_t	get_int64 (const char *name)
	Get a 64-bit integer property value by name. More...

const char *	get_lcnumeric ()

char *	get_name (int index)
	Return the property name at positional `index`. More...

Properties *	get_props (const char *name)

Properties *	get_props_at (int index)

mlt_rect	get_rect (const char *name)

char *	get_time (const char *name, mlt_time_format=mlt_time_smpte_df)

int	inc_ref ()

int	inherit (Properties &that)
	Copy all properties from `that` into this object. More...

bool	is_anim (const char *name)

bool	is_sequence ()
	Return true if all property names are numeric indices (i.e. More...

bool	is_valid ()
	Return true if the underlying mlt_properties handle is non-null. More...

Event *	listen (const char id, void object, mlt_listener)
	Register a listener callback for the named event. More...

void	load (const char *file)
	Merge properties from a file into this object. More...

void	lock ()
	Acquire the recursive mutex protecting this object. More...

void	mirror (Properties &that)
	Mirror all property changes on this object to `that`. More...

Properties &	operator= (const Properties &properties)

int	parse (const char *namevalue)
	Parse a "name=value" string and store the result. More...

int	pass_list (Properties &that, const char *list)
	Copy the space-delimited list of named properties from `that`. More...

void	pass_property (Properties &that, const char *name)
	Copy a single named property from `that`. More...

int	pass_values (Properties &that, const char *prefix)
	Copy all properties whose names begin with `prefix` from `that`. More...

int	preset (const char *name)
	Apply a named preset from the presets directory. More...

	Properties ()

	Properties (bool dummy)

	Properties (const char *file)
	Load properties from a file. More...

	Properties (const Properties &properties)

	Properties (mlt_properties properties)
	Wrap an existing mlt_properties without taking ownership. More...

	Properties (Properties &properties)

	Properties (void *properties)

bool	property_exists (const char *name)

int	ref_count ()

int	rename (const char source, const char dest)
	Rename property `source` to `dest`. More...

int	save (const char *file)
	Save properties to a file. More...

char *	serialise_yaml ()

int	set (const char name, const char value)
	Set a string property. More...

int	set (const char *name, double value)
	Set a double property. More...

int	set (const char *name, double x, double y, double w, double h, double opacity=1.0)

int	set (const char *name, int value)
	Set an integer property. More...

int	set (const char *name, int64_t value)
	Set a 64-bit integer property. More...

int	set (const char *name, mlt_color value)

int	set (const char *name, mlt_rect value)

int	set (const char *name, Properties &properties)

int	set (const char name, void value, int size, mlt_destructor destroy=NULL, mlt_serialiser serial=NULL)
	Store opaque data with an optional destructor and serialiser. More...

int	set_lcnumeric (const char *locale)

int	set_string (const char name, const char value)
	Set a string property (no environment-variable expansion). More...

Event *	setup_wait_for (const char *id)
	Set up a one-shot wait handle for event `id`. More...

int	time_to_frames (const char *time)

void	unblock (void *object=NULL)
	Resume event delivery to `object`. More...

void	unlock ()
	Release the recursive mutex. More...

void	wait_for (const char *id)

void	wait_for (Event *, bool destroy=true)

virtual	~Properties ()

Private Attributes
mlt_transition	instance

Additional Inherited Members
Static Public Member Functions inherited from Mlt::Properties
static void	delete_event (Event *)

static Properties *	parse_yaml (const char *file)
	Parse a YAML Tiny file and return a new Properties tree. More...

Detailed Description

C++ wrapper for mlt_transition — blends two tracks together.

A transition composites the B-track over the A-track for a specified frame range and track pair. It is planted in a Tractor's Field via Tractor::plant_transition().

See also: mlt_transition_s

Constructor & Destructor Documentation

◆ Transition() [1/7]

Transition::Transition ( )

◆ Transition() [2/7]

Transition::Transition	(	Profile &	profile,
		const char *	id,
		const char *	arg = `NULL`
	)

Construct and instantiate transition id from the repository.

◆ Transition() [3/7]

Transition::Transition	(	mlt_profile	profile,
		const char *	id,
		const char *	arg = `NULL`
	)

◆ Transition() [4/7]

Transition::Transition ( Service & transition )

◆ Transition() [5/7]

Transition::Transition ( Transition & transition )

◆ Transition() [6/7]

Transition::Transition ( const Transition & transition )

◆ Transition() [7/7]

Transition::Transition ( mlt_transition transition )

Wrap an existing mlt_transition handle.

◆ ~Transition()

Transition::~Transition ( )

virtual

Member Function Documentation

◆ connect() [1/2]

int Transition::connect	(	Producer &	producer,
		int	a_track,
		int	b_track
	)

◆ connect() [2/2]

int Transition::connect	(	Service &	service,
		int	a_track,
		int	b_track
	)

◆ get_a_track()

int Transition::get_a_track ( )

Return the A-track index.

◆ get_b_track()

int Transition::get_b_track ( )

Return the B-track index.

◆ get_in()

int Transition::get_in ( )

Return the in-point frame number.

◆ get_length()

int Transition::get_length ( )

Return the duration (out - in + 1).

◆ get_out()

int Transition::get_out ( )

Return the out-point frame number.

◆ get_position()

int Transition::get_position ( Frame & frame )

Return the current position of frame relative to the transition's in-point.

◆ get_progress()

double Transition::get_progress ( Frame & frame )

Return the playback progress in the range [0.0, 1.0].

◆ get_progress_delta()

double Transition::get_progress_delta ( Frame & frame )

Return the per-frame progress delta.

◆ get_service()

mlt_service Transition::get_service ( )

overridevirtual

Reimplemented from Mlt::Service.

◆ get_transition()

mlt_transition Transition::get_transition ( )

virtual

◆ operator=()

Transition & Transition::operator= ( const Transition & transition )

◆ set_in_and_out()

void Transition::set_in_and_out	(	int	in,
		int	out
	)

Restrict this transition to the frame range [in, out].

◆ set_tracks()

void Transition::set_tracks	(	int	a_track,
		int	b_track
	)

Set which tracks this transition blends (A = lower, B = upper).

Field Documentation

◆ instance

mlt_transition Mlt::Transition::instance

private

The documentation for this class was generated from the following files:

mlt++/MltTransition.h
mlt++/MltTransition.cpp

Public Member Functions

Private Attributes

Additional Inherited Members