wrap mixer set_volume, use tuple to match get_volume

Original commit message from CVS:
* examples/mixer.py:
* gst/interfaces.override:
wrap mixer set_volume, use tuple to match get_volume

ChangeLog

@@ -1,3 +1,9 @@
+2007-01-17  Thomas Vander Stichele  <thomas at apestaart dot org>
+
+	* examples/mixer.py:
+	* gst/interfaces.override:
+	  wrap mixer set_volume, use tuple to match get_volume
+
 2007-01-17  Thomas Vander Stichele  <thomas at apestaart dot org>
 
 	* gst/pygstexception.c: (element_not_found_error_init),

examples/mixer.py

@@ -6,15 +6,26 @@ import sys
 import gst
 import gst.interfaces
 
-a = gst.element_factory_make('alsasrc')
+pipeline = "alsasrc"
-print a.set_state(gst.STATE_PLAYING)
+if sys.argv[1:]:
+    pipeline = " ".join(sys.argv[1:])
+a = gst.element_factory_make(pipeline)
+print dir(a)
+
+res = a.set_state(gst.STATE_PAUSED)
+if res != gst.STATE_CHANGE_SUCCESS:
+    print "Could not set pipeline %s to PAUSED" % pipeline
 
 print "Inputs:"
 for t in a.list_tracks():
     if t.flags & gst.interfaces.MIXER_TRACK_INPUT:
         sys.stdout.write(t.label)
     sys.stdout.write(': %d - %d' % (t.min_volume, t.max_volume))
-    sys.stdout.write(': %r' % (a.get_volume(t), ))
+    volumes = a.get_volume(t)
+    sys.stdout.write(': %r' % (volumes, ))
+    if t.props.num_channels > 0:
+        a.set_volume(t, volumes=volumes)
     if t.flags & gst.interfaces.MIXER_TRACK_RECORD:
         sys.stdout.write(' (selected)')
     sys.stdout.write('\n')
+

gst/interfaces.override

@@ -162,6 +162,51 @@ _wrap_gst_mixer_options_get_values (PyGObject *self)
     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 *