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102 lines
3.5 KiB
C
102 lines
3.5 KiB
C
/* GStreamer
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*
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* Copyright (C) 2007 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* gstinterpolationcontrolsourceprivate.h: Private declarations for the
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* GstInterpolationControlSource
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#ifndef __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
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#define __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__
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/**
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* GstInterpolateMethod:
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*
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* Function pointer structure to do user-defined interpolation methods
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*/
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typedef struct _GstInterpolateMethod
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{
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GstControlSourceGetValue get_int;
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GstControlSourceGetValueArray get_int_value_array;
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GstControlSourceGetValue get_uint;
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GstControlSourceGetValueArray get_uint_value_array;
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GstControlSourceGetValue get_long;
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GstControlSourceGetValueArray get_long_value_array;
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GstControlSourceGetValue get_ulong;
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GstControlSourceGetValueArray get_ulong_value_array;
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GstControlSourceGetValue get_int64;
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GstControlSourceGetValueArray get_int64_value_array;
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GstControlSourceGetValue get_uint64;
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GstControlSourceGetValueArray get_uint64_value_array;
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GstControlSourceGetValue get_float;
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GstControlSourceGetValueArray get_float_value_array;
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GstControlSourceGetValue get_double;
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GstControlSourceGetValueArray get_double_value_array;
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GstControlSourceGetValue get_boolean;
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GstControlSourceGetValueArray get_boolean_value_array;
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GstControlSourceGetValue get_enum;
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GstControlSourceGetValueArray get_enum_value_array;
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GstControlSourceGetValue get_string;
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GstControlSourceGetValueArray get_string_value_array;
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} GstInterpolateMethod;
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/**
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* GstControlPoint:
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*
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* a internal structure for value+time and various temporary
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* values used for interpolation. This "inherits" from
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* GstTimedValue.
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*/
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typedef struct _GstControlPoint
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{
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/* fields from GstTimedValue. DO NOT CHANGE! */
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GstClockTime timestamp; /* timestamp of the value change */
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GValue value; /* the new value */
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/* internal fields */
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/* Caches for the interpolators */
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union {
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struct {
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gdouble h;
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gdouble z;
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} cubic;
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} cache;
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} GstControlPoint;
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struct _GstInterpolationControlSourcePrivate
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{
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GType type; /* type of the handled property */
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GType base; /* base-type of the handled property */
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GValue default_value; /* default value for the handled property */
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GValue minimum_value; /* min value for the handled property */
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GValue maximum_value; /* max value for the handled property */
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GstInterpolateMode interpolation_mode;
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GSequence *values; /* List of GstControlPoint */
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gint nvalues; /* Number of control points */
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gboolean valid_cache;
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};
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extern GstInterpolateMethod *priv_gst_interpolation_methods[];
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extern guint priv_gst_num_interpolation_methods;
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#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__ */
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