gstreamer/gst/interfaces.override

/* -*- Mode: C; c-basic-offset: 4 -*- */
/* gst-python
 * Copyright (C) 2004 David I. Lehn
 *
 * 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: David I. Lehn <dlehn@users.sourceforge.net>
 */
%%
headers
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif

#include "common.h"

#include <gst/gst.h>

#include <gst/interfaces/colorbalance.h>
#include <gst/interfaces/navigation.h>
#include <gst/interfaces/propertyprobe.h>
#include <gst/interfaces/tuner.h>
#include <gst/interfaces/mixer.h>
#ifdef HAVE_VIDEO_ORIENTATION_INTERFACE
#include <gst/interfaces/videoorientation.h>
#endif

%%
modulename gst.interfaces
%%
import gobject.GObject as PyGObject_Type
import gst.Object as PyGstObject_Type
import gst.Structure as PyGstStructure_Type
import gst.Element as PyGstElement_Type
%%
include
  xoverlay.override
%%
ignore-glob
 _*
 gstinterfaces_*init
 *_get_type
%%
override gst_tuner_list_channels noargs
static PyObject *
_wrap_gst_tuner_list_channels(PyGObject *self)
{
    const GList *l, *list;
    PyObject *py_list;
	
    g_return_val_if_fail (GST_IS_TUNER (self->obj), PyList_New(0));

    list = gst_tuner_list_channels(GST_TUNER(self->obj));
    
    py_list = PyList_New(0);
    for (l = list; l; l = l->next) {
	GstTunerChannel *channel = (GstTunerChannel*)l->data;
	PyObject *py_channel = pygobject_new(G_OBJECT(channel));
	PyList_Append(py_list, py_channel);
	Py_DECREF(py_channel);
    }
		
    return py_list;
}
%%
override gst_tuner_list_norms noargs
static PyObject *
_wrap_gst_tuner_list_norms(PyGObject *self)
{
    const GList *l, *list;
    PyObject *py_list;
	
    g_return_val_if_fail (GST_IS_TUNER (self->obj), PyList_New(0));

    list = gst_tuner_list_norms(GST_TUNER(self->obj));
    
    py_list = PyList_New(0);
    for (l = list; l; l = l->next) {
	GstTunerNorm *norm = (GstTunerNorm*)l->data;
	PyObject *py_norm = pygobject_new(G_OBJECT(norm));
	PyList_Append(py_list, py_norm);
	Py_DECREF(py_norm);
    }
		
    return py_list;
}
%%
override gst_mixer_list_tracks noargs
static PyObject *
_wrap_gst_mixer_list_tracks(PyGObject *self)
{
    const GList *l, *list;
    PyObject *py_list;
	
    g_return_val_if_fail (GST_IS_MIXER (self->obj), PyList_New(0));

    list = gst_mixer_list_tracks(GST_MIXER(self->obj));
    
    py_list = PyList_New(0);
    for (l = list; l; l = l->next) {
	GstMixerTrack *track = (GstMixerTrack*)l->data;
	PyObject *py_track = pygobject_new(G_OBJECT(track));
	PyList_Append(py_list, py_track);
	Py_DECREF(py_track);
    }
		
    return py_list;
}
%%
override gst_color_balance_list_channels noargs
static PyObject *
_wrap_gst_color_balance_list_channels(PyGObject *self)
{
    const GList *l, *list;
    PyObject *py_list;

    g_return_val_if_fail (GST_IS_COLOR_BALANCE (self->obj), PyList_New(0));

    list = gst_color_balance_list_channels(GST_COLOR_BALANCE(self->obj));

    py_list = PyList_New(0);
    for (l = list; l; l = l->next) {
        GstColorBalanceChannel *channel = (GstColorBalanceChannel*)l->data;
        PyObject *py_channel = pygobject_new(G_OBJECT(channel));
        PyList_Append(py_list, py_channel);
        Py_DECREF(py_channel);
    }

    return py_list;
}
%%
override gst_mixer_options_get_values noargs
static PyObject *
_wrap_gst_mixer_options_get_values (PyGObject *self)
{
    GList	*l, *list;
    PyObject	*py_list;

    g_return_val_if_fail (GST_IS_MIXER_OPTIONS (self->obj), PyList_New(0));

    list = gst_mixer_options_get_values (GST_MIXER_OPTIONS (self->obj));

    py_list = PyList_New(0);
    for (l = list; l; l = l->next) {
	gchar *value = (gchar *) l->data;
	PyObject *py_string = PyString_FromString(g_strdup(value));
	PyList_Append(py_list, py_string);
	Py_DECREF (py_string);
    }

    return py_list;
}

%%
override gst_mixer_set_volume kwargs
static PyObject *
_wrap_gst_mixer_set_volume (PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "track", "volumes", NULL };
    PyGObject *track;
    PyObject *py_tuple;
    gint *volumes = NULL;
    gint channels;
    int i;
    PyObject *ret;

    if (!PyArg_ParseTupleAndKeywords (args, kwargs, "O!O:GstMixer.set_volume",
        kwlist, &PyGstMixerTrack_Type, &track, &py_tuple))
      return NULL;

    g_object_get (GST_MIXER_TRACK (track->obj), "num-channels", &channels,
      NULL);

    if (channels != PyTuple_Size (py_tuple)) {
      PyErr_Format (PyExc_TypeError,
          "Track channel count %d != volume tuple size %d",
          channels, PyTuple_Size (py_tuple));
      return NULL;
    }

    Py_INCREF(Py_None);
    ret = Py_None;

    if (channels == 0)
      return ret;

    volumes = g_malloc (channels * sizeof (gint));
    for (i = 0; i < channels; ++i) {
      volumes[i] = PyInt_AsLong (PyTuple_GET_ITEM (py_tuple, i));
    }
    gst_mixer_set_volume (GST_MIXER (self->obj), GST_MIXER_TRACK (track->obj),
          volumes);

    g_free (volumes);

    return ret;
}

%%
override gst_mixer_get_volume kwargs
static PyObject *
_wrap_gst_mixer_get_volume (PyGObject *self, PyObject *args, PyObject *kwargs)
{
    static char *kwlist[] = { "track", NULL };
    PyGObject *track;
    PyObject *py_tuple;
    gint *volumes = NULL;
    gint channels;
    int i;

    if (!PyArg_ParseTupleAndKeywords (args, kwargs, "O!:GstMixer.get_volume",
        kwlist, &PyGstMixerTrack_Type, &track))
      return NULL;

    g_object_get (GST_MIXER_TRACK (track->obj), "num-channels", &channels,
      NULL);

    volumes = g_malloc (channels * sizeof (gint));
    /* 0 channels will cause volume to be a NULL pointer, but we still want
     * our (empty) tuple */
    if (channels)
      gst_mixer_get_volume (GST_MIXER (self->obj), GST_MIXER_TRACK (track->obj),
          volumes);

    py_tuple = PyTuple_New (channels);

    for (i = 0; i < channels; ++i) {
      PyTuple_SET_ITEM (py_tuple, i, PyInt_FromLong (volumes[i]));
    }
    g_free (volumes);

    return py_tuple;
}