void
kms_tree_bin_unlink_input_element_from_tee (KmsTreeBin * self)
{
GstPad *queue_sink, *peer, *tee_src;
GstElement *tee;
queue_sink = gst_element_get_static_pad (self->priv->input_element, "sink");
peer = gst_pad_get_peer (queue_sink);
if (GST_IS_PROXY_PAD (peer)) {
GstProxyPad *ghost;
ghost = gst_proxy_pad_get_internal (GST_PROXY_PAD (peer));
tee_src = gst_pad_get_peer (GST_PAD (ghost));
g_object_unref (peer);
g_object_unref (ghost);
} else {
tee_src = peer;
}
gst_pad_unlink (tee_src, queue_sink);
tee = gst_pad_get_parent_element (tee_src);
if (tee != NULL) {
gst_element_release_request_pad (tee, tee_src);
g_object_unref (tee);
}
g_object_unref (tee_src);
g_object_unref (queue_sink);
}
static GstPad *
_get_peer_pad (GstPad * pad)
{
GstPad *peer = gst_pad_get_peer (pad);
if (!peer)
return NULL;
while (GST_IS_PROXY_PAD (peer)) {
GstPad *next_pad;
if (GST_IS_GHOST_PAD (peer)) {
next_pad = gst_pad_get_peer (peer);
if (next_pad == pad)
next_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (peer));
} else {
next_pad = GST_PAD (gst_proxy_pad_get_internal (GST_PROXY_PAD (peer)));
}
if (!next_pad)
return NULL;
gst_object_unref (peer);
peer = next_pad;
}
return peer;
}
/**
* gst_proxy_pad_get_internal:
* @pad: the #GstProxyPad
*
* Get the internal pad of @pad. Unref target pad after usage.
*
* The internal pad of a #GstGhostPad is the internally used
* pad of opposite direction, which is used to link to the target.
*
* Returns: (transfer full): the target #GstProxyPad, can be NULL.
* Unref target pad after usage.
*/
GstProxyPad *
gst_proxy_pad_get_internal (GstProxyPad * pad)
{
GstPad *internal;
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), NULL);
GST_OBJECT_LOCK (pad);
internal = GST_PROXY_PAD_INTERNAL (pad);
if (internal)
gst_object_ref (internal);
GST_OBJECT_UNLOCK (pad);
return GST_PROXY_PAD_CAST (internal);
}
/**
* gst_proxy_pad_getrange_default:
* @pad: a src #GstPad, returns #GST_FLOW_ERROR if not.
* @parent: the parent of @pad
* @offset: The start offset of the buffer
* @size: The length of the buffer
* @buffer: (out callee-allocates): a pointer to hold the #GstBuffer,
* returns #GST_FLOW_ERROR if %NULL.
*
* Invoke the default getrange function of the proxy pad.
*
* Returns: a #GstFlowReturn from the pad.
*/
GstFlowReturn
gst_proxy_pad_getrange_default (GstPad * pad, GstObject * parent,
guint64 offset, guint size, GstBuffer ** buffer)
{
GstFlowReturn res;
GstPad *internal;
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (buffer != NULL, GST_FLOW_ERROR);
internal = GST_PROXY_PAD_INTERNAL (pad);
res = gst_pad_pull_range (internal, offset, size, buffer);
return res;
}
/**
* gst_proxy_pad_chain_list_default:
* @pad: a sink #GstPad, returns GST_FLOW_ERROR if not.
* @parent: the parent of @pad or NULL
* @list: (transfer full): the #GstBufferList to send, return GST_FLOW_ERROR
* if not.
*
* Invoke the default chain list function of the proxy pad.
*
* Returns: a #GstFlowReturn from the pad.
*/
GstFlowReturn
gst_proxy_pad_chain_list_default (GstPad * pad, GstObject * parent,
GstBufferList * list)
{
GstFlowReturn res;
GstPad *internal;
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_BUFFER_LIST (list), GST_FLOW_ERROR);
internal = GST_PROXY_PAD_INTERNAL (pad);
res = gst_pad_push_list (internal, list);
return res;
}
/**
* gst_proxy_pad_chain_default:
* @pad: a sink #GstPad, returns GST_FLOW_ERROR if not.
* @parent: the parent of @pad or NULL
* @buffer: (transfer full): the #GstBuffer to send, return GST_FLOW_ERROR
* if not.
*
* Invoke the default chain function of the proxy pad.
*
* Returns: a #GstFlowReturn from the pad.
*/
GstFlowReturn
gst_proxy_pad_chain_default (GstPad * pad, GstObject * parent,
GstBuffer * buffer)
{
GstFlowReturn res;
GstPad *internal;
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), GST_FLOW_ERROR);
g_return_val_if_fail (GST_IS_BUFFER (buffer), GST_FLOW_ERROR);
internal = GST_PROXY_PAD_INTERNAL (pad);
res = gst_pad_push (internal, buffer);
return res;
}
/**
* gst_proxy_pad_iterate_internal_links_default:
* @pad: the #GstPad to get the internal links of.
* @parent: the parent of @pad or NULL
*
* Invoke the default iterate internal links function of the proxy pad.
*
* Returns: a #GstIterator of #GstPad, or NULL if @pad has no parent. Unref each
* returned pad with gst_object_unref().
*/
GstIterator *
gst_proxy_pad_iterate_internal_links_default (GstPad * pad, GstObject * parent)
{
GstIterator *res = NULL;
GstPad *internal;
GValue v = { 0, };
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), NULL);
internal = GST_PROXY_PAD_INTERNAL (pad);
g_value_init (&v, GST_TYPE_PAD);
g_value_set_object (&v, internal);
res = gst_iterator_new_single (GST_TYPE_PAD, &v);
g_value_unset (&v);
return res;
}
/**
* gst_proxy_pad_save_thyself:
* @pad: a ghost #GstPad to save.
* @parent: the parent #xmlNodePtr to save the description in.
*
* Saves the ghost pad into an xml representation.
*
* Returns: the #xmlNodePtr representation of the pad.
*/
static xmlNodePtr
gst_proxy_pad_save_thyself (GstObject * object, xmlNodePtr parent)
{
xmlNodePtr self;
GstProxyPad *proxypad;
GstPad *pad;
GstPad *peer;
g_return_val_if_fail (GST_IS_PROXY_PAD (object), NULL);
self = xmlNewChild (parent, NULL, (xmlChar *) "ghostpad", NULL);
xmlNewChild (self, NULL, (xmlChar *) "name",
(xmlChar *) GST_OBJECT_NAME (object));
xmlNewChild (self, NULL, (xmlChar *) "parent",
(xmlChar *) GST_OBJECT_NAME (GST_OBJECT_PARENT (object)));
proxypad = GST_PROXY_PAD_CAST (object);
pad = GST_PAD_CAST (proxypad);
peer = GST_PAD_CAST (pad->peer);
if (GST_IS_PAD (pad)) {
if (GST_PAD_IS_SRC (pad))
xmlNewChild (self, NULL, (xmlChar *) "direction", (xmlChar *) "source");
else if (GST_PAD_IS_SINK (pad))
xmlNewChild (self, NULL, (xmlChar *) "direction", (xmlChar *) "sink");
else
xmlNewChild (self, NULL, (xmlChar *) "direction", (xmlChar *) "unknown");
} else {
xmlNewChild (self, NULL, (xmlChar *) "direction", (xmlChar *) "unknown");
}
if (GST_IS_PAD (peer)) {
gchar *content = g_strdup_printf ("%s.%s",
GST_OBJECT_NAME (GST_PAD_PARENT (peer)), GST_PAD_NAME (peer));
xmlNewChild (self, NULL, (xmlChar *) "peer", (xmlChar *) content);
g_free (content);
} else {
xmlNewChild (self, NULL, (xmlChar *) "peer", NULL);
}
return self;
}
/**
* gst_ghost_pad_internal_activate_mode_default:
* @pad: the #GstPad to activate or deactivate.
* @parent: the parent of @pad or NULL
* @mode: the requested activation mode
* @active: whether the pad should be active or not.
*
* Invoke the default activate mode function of a proxy pad that is
* owned by a ghost pad.
*
* Returns: %TRUE if the operation was successful.
*/
gboolean
gst_ghost_pad_internal_activate_mode_default (GstPad * pad, GstObject * parent,
GstPadMode mode, gboolean active)
{
gboolean res;
g_return_val_if_fail (GST_IS_PROXY_PAD (pad), FALSE);
switch (mode) {
case GST_PAD_MODE_PULL:
res = gst_ghost_pad_internal_activate_pull_default (pad, parent, active);
break;
case GST_PAD_MODE_PUSH:
res = gst_ghost_pad_internal_activate_push_default (pad, parent, active);
break;
default:
GST_LOG_OBJECT (pad, "unknown activation mode %d", mode);
res = FALSE;
break;
}
return res;
}
static void
gst_insert_bin_do_change (GstInsertBin * self, GstPad * pad)
{
struct ChangeData *data;
GST_OBJECT_LOCK (self);
if (!is_right_direction_for_block (pad)) {
GST_WARNING_OBJECT (self, "Block pad does not have the expected direction");
goto next;
}
while ((data = g_queue_pop_head (&self->priv->change_queue)) != NULL) {
GstPad *peer = NULL;
GstPad *other_peer = NULL;
GST_OBJECT_UNLOCK (self);
if (data->action == GST_INSERT_BIN_ACTION_ADD &&
!validate_element (self, data->element))
goto error;
peer = gst_pad_get_peer (pad);
if (peer == NULL) {
GST_WARNING_OBJECT (self, "Blocked pad has no peer");
goto error;
}
if (data->action == GST_INSERT_BIN_ACTION_ADD) {
GstPad *srcpad = NULL, *sinkpad = NULL;
GstPad *peersrcpad, *peersinkpad;
/* First let's make sure we have the right pad */
if (data->sibling) {
GstElement *parent = NULL;
GstPad *siblingpad;
if ((gst_pad_get_direction (pad) == GST_PAD_SRC &&
data->direction == DIRECTION_BEFORE) ||
(gst_pad_get_direction (pad) == GST_PAD_SINK &&
data->direction == DIRECTION_AFTER))
siblingpad = peer;
else
siblingpad = pad;
parent = gst_pad_get_parent_element (siblingpad);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->sibling)
goto retry;
} else {
GstObject *parent;
GstPad *ghost;
GstPad *proxypad;
if (data->direction == DIRECTION_BEFORE) {
ghost = self->priv->srcpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = pad;
else
proxypad = peer;
} else {
ghost = self->priv->sinkpad;
if (gst_pad_get_direction (pad) == GST_PAD_SINK)
proxypad = peer;
else
proxypad = pad;
}
if (!GST_IS_PROXY_PAD (proxypad))
goto retry;
parent = gst_pad_get_parent (proxypad);
if (!parent)
goto retry;
gst_object_unref (parent);
if (GST_PAD_CAST (parent) != ghost)
goto retry;
}
if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
peersrcpad = pad;
peersinkpad = peer;
} else {
peersrcpad = peer;
peersinkpad = pad;
}
if (GST_IS_PROXY_PAD (peersrcpad)) {
GstObject *parent = gst_pad_get_parent (peersrcpad);
if (GST_PAD_CAST (parent) == self->priv->sinkpad)
peersrcpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (GST_IS_PROXY_PAD (peersinkpad)) {
GstObject *parent = gst_pad_get_parent (peersinkpad);
if (GST_PAD_CAST (parent) == self->priv->srcpad)
peersinkpad = NULL;
if (parent)
gst_object_unref (parent);
}
if (peersinkpad && peersrcpad) {
gst_pad_unlink (peersrcpad, peersinkpad);
} else {
if (!peersinkpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad), NULL);
if (!peersrcpad)
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad), NULL);
}
srcpad = get_single_pad (data->element, GST_PAD_SRC);
sinkpad = get_single_pad (data->element, GST_PAD_SINK);
if (srcpad == NULL || sinkpad == NULL) {
GST_WARNING_OBJECT (self, "Can not get element src or sink pad");
goto error;
}
if (!gst_bin_add (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Can not add element to bin");
goto error;
}
if (peersrcpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (peersrcpad, sinkpad))) {
GST_WARNING_OBJECT (self, "Can not link sibling's %s:%s pad"
" to element's %s:%s pad", GST_DEBUG_PAD_NAME (peersrcpad),
GST_DEBUG_PAD_NAME (sinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad),
sinkpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (sinkpad),
GST_DEBUG_PAD_NAME (self->priv->sinkpad));
goto error;
}
}
if (peersinkpad) {
if (GST_PAD_LINK_FAILED (gst_pad_link (srcpad, peersinkpad))) {
GST_WARNING_OBJECT (self, "Can not link element's %s:%s pad"
" to sibling's %s:%s pad", GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (peersinkpad));
goto error;
}
} else {
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad),
srcpad)) {
GST_WARNING_OBJECT (self, "Can not set %s:%s as target for %s:%s",
GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (self->priv->srcpad));
goto error;
}
}
gst_object_unref (srcpad);
gst_object_unref (sinkpad);
if (!gst_element_sync_state_with_parent (data->element)) {
GST_WARNING_OBJECT (self, "Can not sync element's state with parent");
goto error;
}
} else {
GstElement *parent = NULL;
GstPad *other_pad;
GstCaps *caps = NULL, *peercaps = NULL;
gboolean can_intersect;
gboolean success;
parent = gst_pad_get_parent_element (peer);
if (parent != NULL)
gst_object_unref (parent);
if (parent != data->element)
goto retry;
if (gst_pad_get_direction (peer) == GST_PAD_SRC)
other_pad = get_single_pad (data->element, GST_PAD_SINK);
else
other_pad = get_single_pad (data->element, GST_PAD_SRC);
if (!other_pad) {
GST_WARNING_OBJECT (self, "Can not get element's other pad");
goto error;
}
other_peer = gst_pad_get_peer (other_pad);
gst_object_unref (other_pad);
if (!other_peer) {
GST_WARNING_OBJECT (self, "Can not get element's other peer");
goto error;
}
/* Get the negotiated caps for the source pad peer,
* because renegotiation while the pipeline is playing doesn't work
* that fast.
*/
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
caps = gst_pad_get_current_caps (pad);
else
peercaps = gst_pad_get_current_caps (other_peer);
if (!caps)
caps = gst_pad_query_caps (pad, NULL);
if (!peercaps)
peercaps = gst_pad_query_caps (other_peer, NULL);
can_intersect = gst_caps_can_intersect (caps, peercaps);
gst_caps_unref (caps);
gst_caps_unref (peercaps);
if (!can_intersect) {
GST_WARNING_OBJECT (self, "Pads are incompatible without the element");
goto error;
}
if (gst_pad_get_direction (other_peer) == GST_PAD_SRC &&
gst_pad_is_active (other_peer)) {
gulong probe_id;
probe_id = gst_pad_add_probe (other_peer,
GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
wait_and_drop_eos_cb, NULL, NULL);
gst_pad_send_event (peer, gst_event_new_eos ());
gst_pad_remove_probe (other_peer, probe_id);
}
gst_element_set_locked_state (data->element, TRUE);
gst_element_set_state (data->element, GST_STATE_NULL);
if (!gst_bin_remove (GST_BIN (self), data->element)) {
GST_WARNING_OBJECT (self, "Element removal rejected");
goto error;
}
gst_element_set_locked_state (data->element, FALSE);
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (pad, other_peer,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
else
success = GST_PAD_LINK_SUCCESSFUL (gst_pad_link_full (other_peer, pad,
GST_PAD_LINK_CHECK_HIERARCHY |
GST_PAD_LINK_CHECK_TEMPLATE_CAPS));
gst_object_unref (other_peer);
other_peer = NULL;
if (!success) {
GST_ERROR_OBJECT (self, "Could not re-link after the element's"
" removal");
goto error;
}
}
gst_insert_bin_change_data_complete (self, data, TRUE);
gst_object_unref (peer);
GST_OBJECT_LOCK (self);
continue;
done:
if (other_peer != NULL)
gst_object_unref (other_peer);
if (peer != NULL)
gst_object_unref (peer);
break;
retry:
GST_OBJECT_LOCK (self);
g_queue_push_head (&self->priv->change_queue, data);
goto done;
error:
/* Handle error */
gst_insert_bin_change_data_complete (self, data, FALSE);
GST_OBJECT_LOCK (self);
goto done;
}
next:
gst_insert_bin_block_pad_unlock (self);
}
/*
* debug_dump_element:
* @bin: the bin that should be analyzed
* @out: file to write to
* @indent: level of graph indentation
*
* Helper for gst_debug_bin_to_dot_file() to recursively dump a pipeline.
*/
static void
debug_dump_element (GstBin * bin, GstDebugGraphDetails details,
GString * str, const gint indent)
{
GstIterator *element_iter, *pad_iter;
gboolean elements_done, pads_done;
GValue item = { 0, };
GValue item2 = { 0, };
GstElement *element;
GstPad *pad = NULL;
guint src_pads, sink_pads;
gchar *element_name;
gchar *state_name = NULL;
gchar *param_name = NULL;
const gchar *spc = &spaces[MAX (sizeof (spaces) - (1 + indent * 2), 0)];
element_iter = gst_bin_iterate_elements (bin);
elements_done = FALSE;
while (!elements_done) {
switch (gst_iterator_next (element_iter, &item)) {
case GST_ITERATOR_OK:
element = g_value_get_object (&item);
element_name = debug_dump_make_object_name (GST_OBJECT (element));
if (details & GST_DEBUG_GRAPH_SHOW_STATES) {
state_name = debug_dump_get_element_state (GST_ELEMENT (element));
}
if (details & GST_DEBUG_GRAPH_SHOW_NON_DEFAULT_PARAMS) {
param_name = debug_dump_get_element_params (GST_ELEMENT (element),
details);
}
/* elements */
g_string_append_printf (str, "%ssubgraph cluster_%s {\n", spc,
element_name);
g_string_append_printf (str, "%s fontname=\"Bitstream Vera Sans\";\n",
spc);
g_string_append_printf (str, "%s fontsize=\"8\";\n", spc);
g_string_append_printf (str, "%s style=filled;\n", spc);
g_string_append_printf (str, "%s color=black;\n\n", spc);
g_string_append_printf (str, "%s label=\"%s\\n%s%s%s\";\n", spc,
G_OBJECT_TYPE_NAME (element), GST_OBJECT_NAME (element),
(state_name ? state_name : ""), (param_name ? param_name : "")
);
if (state_name) {
g_free (state_name);
state_name = NULL;
}
if (param_name) {
g_free (param_name);
param_name = NULL;
}
g_free (element_name);
src_pads = sink_pads = 0;
if ((pad_iter = gst_element_iterate_sink_pads (element))) {
debug_dump_element_pads (pad_iter, pad, element, details, str,
indent, &src_pads, &sink_pads);
gst_iterator_free (pad_iter);
}
if ((pad_iter = gst_element_iterate_src_pads (element))) {
debug_dump_element_pads (pad_iter, pad, element, details, str,
indent, &src_pads, &sink_pads);
gst_iterator_free (pad_iter);
}
if (GST_IS_BIN (element)) {
g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
/* recurse */
debug_dump_element (GST_BIN (element), details, str, indent + 1);
} else {
if (src_pads && !sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#ffaaaa\";\n", spc);
else if (!src_pads && sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#aaaaff\";\n", spc);
else if (src_pads && sink_pads)
g_string_append_printf (str, "%s fillcolor=\"#aaffaa\";\n", spc);
else
g_string_append_printf (str, "%s fillcolor=\"#ffffff\";\n", spc);
}
g_string_append_printf (str, "%s}\n\n", spc);
if ((pad_iter = gst_element_iterate_pads (element))) {
pads_done = FALSE;
while (!pads_done) {
switch (gst_iterator_next (pad_iter, &item2)) {
case GST_ITERATOR_OK:
pad = g_value_get_object (&item2);
if (gst_pad_is_linked (pad)) {
if (gst_pad_get_direction (pad) == GST_PAD_SRC) {
debug_dump_element_pad_link (pad, element, details, str,
indent);
} else {
GstPad *peer_pad = gst_pad_get_peer (pad);
if (peer_pad) {
if (!GST_IS_GHOST_PAD (peer_pad)
&& GST_IS_PROXY_PAD (peer_pad)) {
debug_dump_element_pad_link (peer_pad, NULL, details,
str, indent);
}
gst_object_unref (peer_pad);
}
}
}
g_value_reset (&item2);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (pad_iter);
break;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
pads_done = TRUE;
break;
}
}
g_value_unset (&item2);
gst_iterator_free (pad_iter);
}
g_value_reset (&item);
break;
case GST_ITERATOR_RESYNC:
gst_iterator_resync (element_iter);
break;
case GST_ITERATOR_ERROR:
case GST_ITERATOR_DONE:
elements_done = TRUE;
break;
}
}
g_value_unset (&item);
gst_iterator_free (element_iter);
}
