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/* GStreamer
*
* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
*
* gstinterpolationcontrolsourceprivate.h: Private declarations for the
* GstInterpolationControlSource
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
#define __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
/**
* GstInterpolateMethod:
*
* Function pointer structure to do user-defined interpolation methods
*/
typedef struct _GstInterpolateMethod
{
GstControlSourceGetValue get_int;
GstControlSourceGetValueArray get_int_value_array;
GstControlSourceGetValue get_uint;
GstControlSourceGetValueArray get_uint_value_array;
GstControlSourceGetValue get_long;
GstControlSourceGetValueArray get_long_value_array;
GstControlSourceGetValue get_ulong;
GstControlSourceGetValueArray get_ulong_value_array;
GstControlSourceGetValue get_int64;
GstControlSourceGetValueArray get_int64_value_array;
GstControlSourceGetValue get_uint64;
GstControlSourceGetValueArray get_uint64_value_array;
GstControlSourceGetValue get_float;
GstControlSourceGetValueArray get_float_value_array;
GstControlSourceGetValue get_double;
GstControlSourceGetValueArray get_double_value_array;
GstControlSourceGetValue get_boolean;
GstControlSourceGetValueArray get_boolean_value_array;
GstControlSourceGetValue get_enum;
GstControlSourceGetValueArray get_enum_value_array;
GstControlSourceGetValue get_string;
GstControlSourceGetValueArray get_string_value_array;
} GstInterpolateMethod;
/**
* GstControlPoint:
*
* a internal structure for value+time and various temporary
* values used for interpolation. This "inherits" from
* GstTimedValue.
*/
typedef struct _GstControlPoint
{
/* fields from GstTimedValue. DO NOT CHANGE! */
GstClockTime timestamp; /* timestamp of the value change */
GValue value; /* the new value */
/* internal fields */
/* Caches for the interpolators */
union {
struct {
gdouble h;
gdouble z;
} cubic;
} cache;
} GstControlPoint;
struct _GstInterpolationControlSourcePrivate
{
GType type; /* type of the handled property */
GType base; /* base-type of the handled property */
GValue default_value; /* default value for the handled property */
GValue minimum_value; /* min value for the handled property */
GValue maximum_value; /* max value for the handled property */
GstInterpolateMode interpolation_mode;
GSequence *values; /* List of GstControlPoint */
gint nvalues; /* Number of control points */
gboolean valid_cache;
};
extern GstInterpolateMethod *priv_gst_interpolation_methods[];
extern guint priv_gst_num_interpolation_methods;
#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__ */