mlt_animation.c File Reference

Property Animation class definition. More...

#include "mlt_animation.h"
#include "mlt_factory.h"
#include "mlt_profile.h"
#include "mlt_properties.h"
#include "mlt_tokeniser.h"
#include <float.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

Data Structures
struct	animation_node_s
	private animation list node More...
struct	mlt_animation_s
	Property Animation class. More...

Typedefs
typedef struct animation_node_s *	animation_node
	animation list node pointer More...

Enumerations
enum	ease_type { ease_in , ease_out , ease_inout }
	Easing functions. More...

Functions
static double	back_interpolate (double y1, double y2, double t, ease_type ease)
static double	bounce_interpolate (double y1, double y2, double t, ease_type ease)
static double	circular_interpolate (double y1, double y2, double t, ease_type ease)
static mlt_time_format	default_time_format ()
static double	elastic_interpolate (double y1, double y2, double t, ease_type ease)
static double	exponential_interpolate (double y1, double y2, double t, ease_type ease)
static int	interpolate_item (mlt_animation_item item, mlt_animation_item p[], double fps, mlt_locale_t locale)
static double	interpolate_value (double x0, double y0, double x1, double y1, double x2, double y2, double x3, double y3, double t, mlt_keyframe_type type)
static const char *	keyframe_type_to_str (mlt_keyframe_type t)
static void	mlt_animation_clear_string (mlt_animation self)
static double	power_interpolate (double y1, double y2, double t, double order, ease_type ease)
static double	sinusoidal_interpolate (double y1, double y2, double t, ease_type ease)
static mlt_keyframe_type	str_to_keyframe_type (const char *s)

Variables
struct {
const char *   s
mlt_keyframe_type   t
}	keyframe_type_map []
	Keyframe type to string mapping. More...

Detailed Description

Property Animation class definition.

See also

mlt_animation_s

Copyright (C) 2004-2023 Meltytech, LLC

This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

Typedef Documentation

animation_node

typedef struct animation_node_s* animation_node

animation list node pointer

Enumeration Type Documentation

ease_type

enum ease_type

Easing functions.

The following easing functions are based on Robert Penner's Easing Functions http://robertpenner.com/easing/

Enumerator
ease_in
ease_out
ease_inout

Function Documentation

back_interpolate()

static double back_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

bounce_interpolate()

static double bounce_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

circular_interpolate()

static double circular_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

default_time_format()

static mlt_time_format default_time_format ( )

static

elastic_interpolate()

static double elastic_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

exponential_interpolate()

static double exponential_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

interpolate_item()

static int interpolate_item ( mlt_animation_item  item, mlt_animation_item  p[], double  fps, mlt_locale_t  locale  )

static

interpolate_value()

static double interpolate_value ( double  x0, double  y0, double  x1, double  y1, double  x2, double  y2, double  x3, double  y3, double  t, mlt_keyframe_type  type  )

inlinestatic

keyframe_type_to_str()

static const char* keyframe_type_to_str ( mlt_keyframe_type  t )

static

mlt_animation_clear_string()

static void mlt_animation_clear_string ( mlt_animation  self )

static

power_interpolate()

static double power_interpolate ( double  y1, double  y2, double  t, double  order, ease_type  ease  )

inlinestatic

sinusoidal_interpolate()

static double sinusoidal_interpolate ( double  y1, double  y2, double  t, ease_type  ease  )

inlinestatic

str_to_keyframe_type()

static mlt_keyframe_type str_to_keyframe_type ( const char *  s )

static

Variable Documentation

struct { ... } keyframe_type_map[]

Keyframe type to string mapping.

Used for serialization and deserialization of keyframe types

s

const char* s

t

mlt_keyframe_type t