gstreamer/gst/gstbuffer.override
Johan Dahlin 190edee6fc Add some more stuff GstBuffer stuff
Original commit message from CVS:
Add some more stuff GstBuffer stuff
2004-06-21 08:36:08 +00:00

314 lines
8.3 KiB
C

/* -*- Mode: C; ; c-file-style: "python" -*- */
/* gst-python
* Copyright (C) 2002 David I. Lehn
* Copyright (C) 2004 Johan Dahlin
*
* 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.
*
* Author: Johan Dahlin <johan@gnome.org>
*/
%%
headers
static int gst_buffer_getreadbuffer (PyGObject *self,
int index,
const void **ptr);
static int gst_buffer_length (PyGObject *self);
static int gst_buffer_getwritebuf (PyGObject *self,
int index,
const void **ptr);
static int gst_buffer_getsegcount (PyGObject *self,
int *lenp);
static int gst_buffer_getcharbuf (PyGObject *self,
int index,
const char **ptr);
%%
override gst_buffer_new kwargs
static int
_wrap_gst_buffer_new(PyGBoxed *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = { "data", "buffer_size", NULL };
char *data = NULL;
int size;
int buf_size = -1;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|z#i:GstBuffer.__init__", kwlist,
&data, &size, &buf_size))
return -1;
self->gtype = GST_TYPE_BUFFER;
self->free_on_dealloc = FALSE;
if (buf_size != -1)
self->boxed = gst_buffer_new_and_alloc(buf_size);
else
self->boxed = gst_buffer_new();
if (!self->boxed) {
PyErr_SetString(PyExc_RuntimeError, "could not create GstBuffer object");
return -1;
}
if (data == NULL)
return 0;
if (buf_size != -1 && buf_size != size) {
PyErr_Format(PyExc_TypeError, "data must be of length %d, not %d", size, buf_size);
return -1;
}
GST_BUFFER_DATA (self->boxed) = data;
GST_BUFFER_SIZE (self->boxed) = size;
return 0;
}
%%
override gst_buffer_get_data
static PyObject*
_wrap_gst_buffer_get_data(PyObject *self)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);
return PyString_FromStringAndSize(GST_BUFFER_DATA(buf),
GST_BUFFER_SIZE(buf));
}
%%
override gst_buffer_set_data kwargs
static PyObject*
_wrap_gst_buffer_set_data(PyObject *self, PyObject *args, PyObject *kwargs)
{
static char *kwlist[] = {"data", NULL};
PyObject *data;
GstBuffer *buf;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "O:GstBuffer:set_data", kwlist, &data))
{
return NULL;
}
if (!PyString_Check(data)) {
PyErr_SetString(PyExc_TypeError, "data should be a string");
return NULL;
}
buf = pyg_boxed_get(self, GstBuffer);
if (GST_BUFFER_FLAGS(buf) & GST_BUFFER_READONLY) {
PyErr_SetString(PyExc_TypeError, "set_data can't use a READONLY buffer");
return NULL;
}
GST_BUFFER_SIZE(buf) = PyString_Size(data);
GST_BUFFER_DATA(buf) = g_new0(char, GST_BUFFER_SIZE(buf));
memcpy(GST_BUFFER_DATA(buf),
PyString_AsString(data),
PyString_Size(data));
Py_INCREF(Py_None);
return Py_None;
}
%%
override-slot GstBuffer.tp_getattr
PyObject *
_wrap_gst_buffer_tp_getattr(PyGObject *self, char *attr)
{
/* We have some GstData methods since it's not a subclass */
if (!strcmp(attr, "type"))
return pyg_type_wrapper_new(GST_DATA_TYPE(self->obj));
else if (!strcmp(attr, "flags"))
return PyInt_FromLong(GST_DATA_FLAGS(self->obj));
#if 0
else if (!strcmp(attr, "size"))
return PyInt_FromLong(GST_BUFFER_SIZE(self->obj));
#endif
else if (!strcmp(attr, "maxsize"))
return PyInt_FromLong(GST_BUFFER_MAXSIZE(self->obj));
/* XXX: timestamp and duration */
else if (!strcmp(attr, "offset"))
return PyInt_FromLong(GST_BUFFER_OFFSET(self->obj));
else if (!strcmp(attr, "offset_end"))
return PyInt_FromLong(GST_BUFFER_OFFSET_END(self->obj));
return Py_FindMethod(_PyGstBuffer_methods, (PyObject*)self, attr);
}
%%
override-attr GstBuffer.size
static PyObject *
_wrap_gst_buffer__get_size(PyGObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_SIZE(self->obj));
}
%%
override-attr GstBuffer.maxsize
static PyObject *
_wrap_gst_buffer__get_maxsize(PyGObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_MAXSIZE(self->obj));
}
%%
override-attr GstBuffer.offset
static PyObject *
_wrap_gst_buffer__get_offset(PyGObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_OFFSET(self->obj));
}
%%
override-attr GstBuffer.offset_end
static PyObject *
_wrap_gst_buffer__get_offset_end(PyGObject *self, void *closure)
{
return PyInt_FromLong(GST_BUFFER_OFFSET_END(self->obj));
}
%%
override-slot GstBuffer.tp_str
static PyObject *
_wrap_gst_buffer_tp_str(PyGObject *self)
{
return PyString_FromStringAndSize(GST_BUFFER_DATA(self->obj),
GST_BUFFER_SIZE(self->obj));
}
%%
override-slot GstBuffer.tp_as_buffer
static PyBufferProcs _wrap_gst_buffer_tp_as_buffer = {
(getreadbufferproc)gst_buffer_getreadbuffer, /* bf_getreadbuffer */
(getwritebufferproc)gst_buffer_getwritebuf, /* bf_getwritebuffer */
(getsegcountproc)gst_buffer_getsegcount, /* bf_getsegcount */
(getcharbufferproc)gst_buffer_getcharbuf, /* bf_getcharbuffer */
};
static int
gst_buffer_getreadbuffer(PyGObject *self, int index, const void **ptr)
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError,
"accessing non-existent GstBuffer segment");
return -1;
}
*ptr = GST_BUFFER_DATA(self->obj);
return GST_BUFFER_SIZE(self->obj);
}
static int
gst_buffer_getsegcount(PyGObject *self, int *lenp)
{
if (lenp)
*lenp = GST_BUFFER_SIZE(self->obj);
return 1;
}
static int
gst_buffer_getcharbuf(PyGObject *self, int index, const char **ptr)
{
if ( index != 0 ) {
PyErr_SetString(PyExc_SystemError,
"accessing non-existent GstBuffer segment");
return -1;
}
*ptr = GST_BUFFER_DATA(self->obj);
return GST_BUFFER_SIZE(self->obj);
}
static int
gst_buffer_getwritebuf(PyGObject *self, int index, const void **ptr)
{
PyErr_SetString(PyExc_TypeError,
"Cannot use GstBuffer as modifiable buffer");
return -1;
}
%%
override-slot GstBuffer.tp_as_sequence
static PySequenceMethods _wrap_gst_buffer_tp_as_sequence = {
(inquiry)gst_buffer_length, /* sq_length */
NULL, /* sq_concat */
NULL, /* sq_repeat */
NULL, /* sq_item */
NULL, /* sq_slice */
NULL, /* sq_ass_item */
NULL, /* sq_ass_slice */
NULL, /* sq_contains */
NULL, /* sq_inplace_concat */
NULL, /* sq_inplace_repeat */
};
static int
gst_buffer_length(PyGObject *self)
{
return GST_BUFFER_SIZE(self->obj);
}
/* %%
define GstBuffer.flags noargs
static PyObject *
_wrap_gst_buffer_flags(PyGBoxed *self)
{
GstBuffer *buf = pyg_boxed_get(self, GstBuffer);
g_assert(GST_IS_BUFFER(buf));
return PyInt_FromLong(GST_BUFFER_FLAGS(buf));
} */
%%
define GstBuffer.flag_is_set
static PyObject *
_wrap_gst_buffer_flag_is_set(PyObject *self, PyObject *args)
{
int flag;
PyObject *retval;
GstBuffer *buf;
if (!PyArg_ParseTuple(args, "i:GstBuffer.flag_is_set", &flag))
return NULL;
buf = pyg_boxed_get(self, GstBuffer);
g_assert(GST_IS_BUFFER(buf));
retval = GST_BUFFER_FLAG_IS_SET(buf, flag) ? Py_True : Py_False;
Py_INCREF(retval);
return retval;
}
%%
define GstBuffer.flag_set
static PyObject *
_wrap_gst_buffer_flag_set(PyObject *self, PyObject *args)
{
int flag;
GstBuffer *buf;
if (!PyArg_ParseTuple(args, "i:GstBuffer.set", &flag))
return NULL;
buf = pyg_boxed_get(self, GstBuffer);
g_assert(GST_IS_BUFFER(buf));
GST_BUFFER_FLAG_SET(buf, flag);
Py_INCREF(Py_None);
return Py_None;
}
%%
define GstBuffer.flag_unset
static PyObject *
_wrap_gst_buffer_flag_unset(PyObject *self, PyObject *args)
{
int flag;
GstBuffer *buf;
if (!PyArg_ParseTuple(args, "i:GstBuffer.unset", &flag))
return NULL;
buf = pyg_boxed_get(self, GstBuffer);
g_assert(GST_IS_BUFFER(buf));
GST_BUFFER_FLAG_UNSET(buf, flag);
Py_INCREF(Py_None);
return Py_None;
}