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reintroduce channels

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Bring back the channel object. Making a node and port on the client side
was rather awkward because of the async nature of many methods. It feels
better to have a specific communication channel object to interface with
a server side port.
Use port activate/deactivate to start/stop streams
Remove links from the ports. We let other objects install a callback on
the port to receive and route buffers.
This commit is contained in:
Wim Taymans 2016-07-20 17:29:34 +02:00
parent eefe6aacb9
commit e167d30296
26 changed files with 2840 additions and 675 deletions
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34
pinos/modules/gst/gst-source.c
View file

@ -362,17 +362,11 @@ set_property (GObject *object,
}
static gboolean
on_linked (PinosPort *port, PinosPort *peer, gpointer user_data)
on_activate (PinosPort *port, gpointer user_data)
{
SourcePortData *data = user_data;
PinosGstSource *source = data->source;
PinosGstSourcePrivate *priv = source->priv;
guint n_links;
pinos_port_get_links (port, &n_links);
g_debug ("port %p: linked, now %d", port, n_links);
if (n_links > 0)
return TRUE;
if (priv->splitter) {
data->peerpad = gst_element_get_request_pad (priv->splitter, "src_%u");
@ -386,36 +380,32 @@ on_linked (PinosPort *port, PinosPort *peer, gpointer user_data)
pinos_node_report_busy (PINOS_NODE (source));
gst_element_set_state (data->sink, GST_STATE_PLAYING);
if (data->convert) {
gst_element_set_state (data->convert, GST_STATE_PLAYING);
}
gst_element_set_state (data->sink, GST_STATE_PLAYING);
return TRUE;
}
static void
on_unlinked (PinosPort *port, PinosPort *peer, gpointer user_data)
on_deactivate (PinosPort *port, gpointer user_data)
{
SourcePortData *data = user_data;
PinosGstSource *source = data->source;
PinosGstSourcePrivate *priv = source->priv;
guint n_links;
pinos_port_get_links (port, &n_links);
g_debug ("port %p: unlinked, now %d", port, n_links);
if (n_links > 0)
return;
if (data->convert) {
gst_element_set_state (data->convert, GST_STATE_NULL);
}
gst_element_set_state (data->sink, GST_STATE_NULL);
gst_pad_unlink (data->peerpad, data->sinkpad);
if (priv->splitter)
gst_element_release_request_pad (priv->splitter, data->peerpad);
gst_element_set_state (data->sink, GST_STATE_NULL);
if (data->convert) {
gst_element_set_state (data->convert, GST_STATE_NULL);
}
g_clear_object (&data->peerpad);
pinos_node_report_idle (PINOS_NODE (source));
}
static void
@ -588,8 +578,8 @@ add_port (PinosNode *node,
->add_port (node, direction, error);
g_debug ("connecting signals");
g_signal_connect (data->port, "linked", (GCallback) on_linked, data);
g_signal_connect (data->port, "unlinked", (GCallback) on_unlinked, data);
g_signal_connect (data->port, "activate", (GCallback) on_activate, data);
g_signal_connect (data->port, "deactivate", (GCallback) on_deactivate, data);
data->sink = gst_element_factory_make ("pinosportsink", NULL);
g_object_set (data->sink, "sync", TRUE,