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_new( PyTypeObject *type, PyObject *args, PyObject *kwds )
33 static char *kwlist[] = { "value", "origin", "key", NULL};
35 self = PyObject_New( PyPosition, &PyPosition_Type );
38 self->origin=mediacontrol_AbsolutePosition;
39 self->key=mediacontrol_MediaTime;
41 /* We do not care about the return value, since it will leave the fields
42 with their default value. */
43 if(! PyArg_ParseTupleAndKeywords( args, kwds, "|lii", kwlist,
52 return ( PyObject * )self;
55 mediacontrol_PositionKey
56 positionKey_py_to_c( PyObject * py_key )
58 mediacontrol_PositionKey key_position = mediacontrol_MediaTime;
61 if( !PyArg_Parse( py_key, "i", &key ) )
63 PyErr_SetString ( MediaControl_InternalException, "Invalid key value" );
69 case 0: key = mediacontrol_ByteCount; break;
70 case 1: key = mediacontrol_SampleCount; break;
71 case 2: key = mediacontrol_MediaTime; break;
76 mediacontrol_PositionOrigin
77 positionOrigin_py_to_c( PyObject * py_origin )
79 mediacontrol_PositionOrigin origin_position = mediacontrol_AbsolutePosition;
82 if( !PyArg_Parse( py_origin,"i", &origin ) )
84 PyErr_SetString( MediaControl_InternalException,
85 "Invalid origin value" );
86 return origin_position;
91 case 0: origin_position = mediacontrol_AbsolutePosition; break;
92 case 1: origin_position = mediacontrol_RelativePosition; break;
93 case 2: origin_position = mediacontrol_ModuloPosition; break;
96 return origin_position;
99 /* Methods for transforming the Position Python object to Position structure*/
100 mediacontrol_Position*
101 position_py_to_c( PyObject * py_position )
103 mediacontrol_Position * a_position = NULL;
104 PyPosition *pos = ( PyPosition* )py_position;
106 a_position = ( mediacontrol_Position* )malloc( sizeof( mediacontrol_Position ) );
109 PyErr_SetString( PyExc_MemoryError, "Out of memory" );
115 /* If we give a NULL value, it will be considered as
116 a 0 relative position in mediatime */
117 a_position->origin = mediacontrol_RelativePosition;
118 a_position->key = mediacontrol_MediaTime;
119 a_position->value = 0;
121 else if( PyObject_IsInstance( py_position, ( PyObject* )&PyPosition_Type ) )
123 a_position->origin = pos->origin;
124 a_position->key = pos->key;
125 a_position->value = ntohll(pos->value);
129 /* Feature: if we give an integer, it will be considered as
130 a relative position in mediatime */
131 a_position->origin = mediacontrol_RelativePosition;
132 a_position->key = mediacontrol_MediaTime;
133 a_position->value = PyLong_AsLongLong( py_position );
139 position_c_to_py( mediacontrol_Position *position )
141 PyPosition* py_retval;
143 py_retval = PyObject_New( PyPosition, &PyPosition_Type );
144 py_retval->origin = position->origin;
145 py_retval->key = position->key;
146 py_retval->value = position->value;
151 static PyMethodDef PyPosition_methods[] =
153 { NULL } /* Sentinel */
156 static PyMemberDef PyPosition_members[] =
158 { "origin", T_INT, offsetof( PyPosition, origin ), 0, "Position origin" },
159 { "key", T_INT, offsetof( PyPosition, key ), 0, "Position key" },
160 { "value", T_ULONG, offsetof( PyPosition, value ), 0, "Position value" },
161 { NULL } /* Sentinel */
164 static PyTypeObject PyPosition_Type =
166 PyObject_HEAD_INIT( NULL )
168 "vlc.Position", /*tp_name*/
169 sizeof( PyPosition_Type ), /*tp_basicsize*/
178 0, /*tp_as_sequence*/
186 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /*tp_flags*/
187 "Represent a Position with value, origin and key", /* tp_doc */
190 0, /* tp_richcompare */
191 0, /* tp_weaklistoffset */
194 PyPosition_methods, /* tp_methods */
195 PyPosition_members, /* tp_members */
199 0, /* tp_descr_get */
200 0, /* tp_descr_set */
201 0, /* tp_dictoffset */
204 PyPosition_new, /* tp_new */