/* 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;

  gint nvalues;                 /* Number of control points */

  gboolean valid_cache;

};

#endif /* __GST_INTERPOLATION_CONTROL_SOURCE_PRIVATE_H__ */