static void
gst_frei0r_mixer_init (GstFrei0rMixer * self, GstFrei0rMixerClass * klass)
{
self->property_cache =
gst_frei0r_property_cache_init (klass->properties, klass->n_properties);
gst_video_info_init (&self->info);
self->collect = gst_collect_pads_new ();
gst_collect_pads_set_function (self->collect,
(GstCollectPadsFunction) gst_frei0r_mixer_collected, self);
gst_collect_pads_set_event_function (self->collect,
(GstCollectPadsEventFunction) gst_frei0r_mixer_sink_event, self);
gst_collect_pads_set_query_function (self->collect,
(GstCollectPadsQueryFunction) gst_frei0r_mixer_sink_query, self);
self->src =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "src"), "src");
gst_pad_set_query_function (self->src,
GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_query));
gst_pad_set_event_function (self->src,
GST_DEBUG_FUNCPTR (gst_frei0r_mixer_src_event));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->src);
self->sink0 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_0"), "sink_0");
gst_collect_pads_add_pad (self->collect, self->sink0,
sizeof (GstCollectData), NULL, TRUE);
self->collect_event = (GstPadEventFunction) GST_PAD_EVENTFUNC (self->sink0);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink0);
self->sink1 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_1"), "sink_1");
gst_collect_pads_add_pad (self->collect, self->sink1,
sizeof (GstCollectData), NULL, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink1);
if (klass->info->plugin_type == F0R_PLUGIN_TYPE_MIXER3) {
self->sink2 =
gst_pad_new_from_template (gst_element_class_get_pad_template
(GST_ELEMENT_CLASS (klass), "sink_2"), "sink_2");
gst_collect_pads_add_pad (self->collect, self->sink2,
sizeof (GstCollectData), NULL, TRUE);
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sink2);
}
}
static GstPad *
gst_interleave_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * req_name, const GstCaps * caps)
{
GstInterleave *self = GST_INTERLEAVE (element);
GstPad *new_pad;
gchar *pad_name;
gint channel, padnumber;
GValue val = { 0, };
if (templ->direction != GST_PAD_SINK)
goto not_sink_pad;
padnumber = g_atomic_int_add (&self->padcounter, 1);
channel = g_atomic_int_add (&self->channels, 1);
if (!self->channel_positions_from_input)
channel = padnumber;
pad_name = g_strdup_printf ("sink_%u", padnumber);
new_pad = GST_PAD_CAST (g_object_new (GST_TYPE_INTERLEAVE_PAD,
"name", pad_name, "direction", templ->direction,
"template", templ, NULL));
GST_INTERLEAVE_PAD_CAST (new_pad)->channel = channel;
GST_DEBUG_OBJECT (self, "requested new pad %s", pad_name);
g_free (pad_name);
gst_pad_use_fixed_caps (new_pad);
gst_collect_pads_add_pad (self->collect, new_pad, sizeof (GstCollectData),
NULL, TRUE);
gst_collect_pads_set_event_function (self->collect,
(GstCollectPadsEventFunction)
GST_DEBUG_FUNCPTR (gst_interleave_sink_event), self);
gst_collect_pads_set_query_function (self->collect,
(GstCollectPadsQueryFunction)
GST_DEBUG_FUNCPTR (gst_interleave_sink_query), self);
if (!gst_element_add_pad (element, new_pad))
goto could_not_add;
g_value_init (&val, GST_TYPE_AUDIO_CHANNEL_POSITION);
g_value_set_enum (&val, GST_AUDIO_CHANNEL_POSITION_NONE);
self->input_channel_positions =
g_value_array_append (self->input_channel_positions, &val);
g_value_unset (&val);
/* Update the src caps if we already have them */
if (self->sinkcaps) {
GstCaps *srccaps;
GstStructure *s;
/* Take lock to make sure processing finishes first */
GST_OBJECT_LOCK (self->collect);
srccaps = gst_caps_copy (self->sinkcaps);
s = gst_caps_get_structure (srccaps, 0);
gst_structure_set (s, "channels", G_TYPE_INT, self->channels, NULL);
gst_interleave_set_channel_positions (self, s);
gst_interleave_send_stream_start (self);
gst_pad_set_caps (self->src, srccaps);
gst_caps_unref (srccaps);
GST_OBJECT_UNLOCK (self->collect);
}
return new_pad;
/* errors */
not_sink_pad:
{
g_warning ("interleave: requested new pad that is not a SINK pad\n");
return NULL;
}
could_not_add:
{
GST_DEBUG_OBJECT (self, "could not add pad %s", GST_PAD_NAME (new_pad));
gst_collect_pads_remove_pad (self->collect, new_pad);
gst_object_unref (new_pad);
return NULL;
}
}
