1 /*****************************************************************************
2 * vlc_position.c: vlc.Position binding
3 *****************************************************************************
4 * Copyright (C) 2006 the VideoLAN team
7 * Authors: Olivier Aubert <oaubert at bat710.univ-lyon1.fr>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
25 /***********************************************************************
27 ***********************************************************************/
30 PyPosition_init( PyPosition *self, PyObject *args, PyObject *kwds )
32 self->origin = mediacontrol_AbsolutePosition;
33 self->key = mediacontrol_MediaTime;
38 mediacontrol_PositionKey
39 positionKey_py_to_c( PyObject * py_key )
41 mediacontrol_PositionKey key_position = mediacontrol_MediaTime;
44 if( !PyArg_Parse( py_key, "i", &key ) )
46 PyErr_SetString ( MediaControl_InternalException, "Invalid key value" );
52 case 0: key = mediacontrol_ByteCount; break;
53 case 1: key = mediacontrol_SampleCount; break;
54 case 2: key = mediacontrol_MediaTime; break;
59 mediacontrol_PositionOrigin
60 positionOrigin_py_to_c( PyObject * py_origin )
62 mediacontrol_PositionOrigin origin_position = mediacontrol_AbsolutePosition;
65 if( !PyArg_Parse( py_origin,"i", &origin ) )
67 PyErr_SetString( MediaControl_InternalException,
68 "Invalid origin value" );
69 return origin_position;
74 case 0: origin_position = mediacontrol_AbsolutePosition; break;
75 case 1: origin_position = mediacontrol_RelativePosition; break;
76 case 2: origin_position = mediacontrol_ModuloPosition; break;
79 return origin_position;
82 /* Methods for transforming the Position Python object to Position structure*/
83 mediacontrol_Position*
84 position_py_to_c( PyObject * py_position )
86 mediacontrol_Position * a_position = NULL;
87 PyPosition *pos = ( PyPosition* )py_position;
89 a_position = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
92 PyErr_SetString( PyExc_MemoryError, "Out of memory" );
98 /* If we give a NULL value, it will be considered as
99 a 0 relative position in mediatime */
100 a_position->origin = mediacontrol_RelativePosition;
101 a_position->key = mediacontrol_MediaTime;
102 a_position->value = 0;
104 else if( PyObject_IsInstance( py_position, ( PyObject* )&PyPosition_Type ) )
106 a_position->origin = pos->origin;
107 a_position->key = pos->key;
108 a_position->value = ntohll(pos->value);
112 /* Feature: if we give an integer, it will be considered as
113 a relative position in mediatime */
114 a_position->origin = mediacontrol_RelativePosition;
115 a_position->key = mediacontrol_MediaTime;
116 a_position->value = PyLong_AsLongLong( py_position );
122 position_c_to_py( mediacontrol_Position *position )
124 PyPosition* py_retval;
126 py_retval = PyObject_New( PyPosition, &PyPosition_Type );
127 py_retval->origin = position->origin;
128 py_retval->key = position->key;
129 py_retval->value = position->value;
134 static PyMethodDef PyPosition_methods[] =
136 { NULL } /* Sentinel */
139 static PyMemberDef PyPosition_members[] =
141 { "origin", T_INT, offsetof( PyPosition, origin ), 0, "Position origin" },
142 { "key", T_INT, offsetof( PyPosition, key ), 0, "Position key" },
143 { "value", T_ULONG, offsetof( PyPosition, value ), 0, "Position value" },
144 { NULL } /* Sentinel */
147 static PyTypeObject PyPosition_Type =
149 PyObject_HEAD_INIT( NULL )
151 "vlc.Position", /*tp_name*/
152 sizeof( PyPosition_Type ), /*tp_basicsize*/
161 0, /*tp_as_sequence*/
169 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
170 "Represent a Position with origin, key and value", /* tp_doc */
173 0, /* tp_richcompare */
174 0, /* tp_weaklistoffset */
177 PyPosition_methods, /* tp_methods */
178 PyPosition_members, /* tp_members */
182 0, /* tp_descr_get */
183 0, /* tp_descr_set */
184 0, /* tp_dictoffset */
185 ( initproc )PyPosition_init, /* tp_init */