diff options
Diffstat (limited to 'ext/gconf/gstswitchsink.c')
-rw-r--r-- | ext/gconf/gstswitchsink.c | 270 |
1 files changed, 0 insertions, 270 deletions
diff --git a/ext/gconf/gstswitchsink.c b/ext/gconf/gstswitchsink.c deleted file mode 100644 index 1fccf683f..000000000 --- a/ext/gconf/gstswitchsink.c +++ /dev/null @@ -1,270 +0,0 @@ -/* GStreamer - * Copyright (c) 2005 Ronald S. Bultje <rbultje@ronald.bitfreak.net> - * Copyright (c) 2006 Jürg Billeter <j@bitron.ch> - * Copyright (c) 2007 Jan Schmidt <thaytan@noraisin.net> - * - * 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. - */ - -#ifdef HAVE_CONFIG_H -#include "config.h" -#endif - -#include <string.h> - -#include "gstswitchsink.h" - -GST_DEBUG_CATEGORY_STATIC (switch_debug); -#define GST_CAT_DEFAULT switch_debug - -static void gst_switch_sink_dispose (GObject * object); -static GstStateChangeReturn -gst_switch_sink_change_state (GstElement * element, GstStateChange transition); - -enum -{ - PROP_0 -}; - -GST_BOILERPLATE (GstSwitchSink, gst_switch_sink, GstBin, GST_TYPE_BIN); - -static void -gst_switch_sink_base_init (gpointer klass) -{ - GST_DEBUG_CATEGORY_INIT (switch_debug, "switchsink", 0, "switchsink element"); -} - -static void -gst_switch_sink_class_init (GstSwitchSinkClass * klass) -{ - GObjectClass *oklass = G_OBJECT_CLASS (klass); - GstElementClass *eklass = GST_ELEMENT_CLASS (klass); - static GstStaticPadTemplate sink_template = GST_STATIC_PAD_TEMPLATE ("sink", - GST_PAD_SINK, - GST_PAD_ALWAYS, - GST_STATIC_CAPS_ANY); - GstPadTemplate *child_pad_templ; - - oklass->dispose = gst_switch_sink_dispose; - eklass->change_state = gst_switch_sink_change_state; - - /* Provide a default pad template if the child didn't */ - child_pad_templ = gst_element_class_get_pad_template (eklass, "sink"); - if (child_pad_templ == NULL) { - gst_element_class_add_pad_template (eklass, - gst_static_pad_template_get (&sink_template)); - } -} - -static gboolean -gst_switch_sink_reset (GstSwitchSink * sink) -{ - /* this will install fakesink if no other child has been set, - * otherwise we rely on the subclass to know when to unset its - * custom kid */ - if (sink->kid == NULL) { - return gst_switch_sink_set_child (sink, NULL); - } - - return TRUE; -} - -static void -gst_switch_sink_init (GstSwitchSink * sink, GstSwitchSinkClass * g_class) -{ - GstElementClass *eklass = GST_ELEMENT_GET_CLASS (sink); - GstPadTemplate *templ; - - templ = gst_element_class_get_pad_template (eklass, "sink"); - sink->pad = gst_ghost_pad_new_no_target_from_template ("sink", templ); - gst_element_add_pad (GST_ELEMENT (sink), sink->pad); - - gst_switch_sink_reset (sink); - - GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_IS_SINK); -} - -static void -gst_switch_sink_dispose (GObject * object) -{ - GstSwitchSink *sink = GST_SWITCH_SINK (object); - GstObject *new_kid, *kid; - - GST_OBJECT_LOCK (sink); - new_kid = GST_OBJECT_CAST (sink->new_kid); - sink->new_kid = NULL; - - kid = GST_OBJECT_CAST (sink->kid); - sink->kid = NULL; - GST_OBJECT_UNLOCK (sink); - - gst_object_replace (&new_kid, NULL); - gst_object_replace (&kid, NULL); - - GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); -} - -static gboolean -gst_switch_sink_commit_new_kid (GstSwitchSink * sink) -{ - GstPad *targetpad; - GstState kid_state; - GstElement *new_kid, *old_kid; - gboolean is_fakesink = FALSE; - GstBus *bus; - - /* need locking around member accesses */ - GST_OBJECT_LOCK (sink); - /* If we're currently changing state, set the child to the next state - * we're transitioning too, rather than our current state which is - * about to change */ - if (GST_STATE_NEXT (sink) != GST_STATE_VOID_PENDING) - kid_state = GST_STATE_NEXT (sink); - else - kid_state = GST_STATE (sink); - - new_kid = sink->new_kid ? gst_object_ref (sink->new_kid) : NULL; - sink->new_kid = NULL; - GST_OBJECT_UNLOCK (sink); - - /* Fakesink by default if NULL is passed as the new child */ - if (new_kid == NULL) { - GST_DEBUG_OBJECT (sink, "Replacing kid with fakesink"); - new_kid = gst_element_factory_make ("fakesink", "testsink"); - if (new_kid == NULL) { - GST_ERROR_OBJECT (sink, "Failed to create fakesink"); - return FALSE; - } - /* Add a reference, as it would if the element came from sink->new_kid */ - gst_object_ref (new_kid); - g_object_set (new_kid, "sync", TRUE, NULL); - is_fakesink = TRUE; - } else { - GST_DEBUG_OBJECT (sink, "Setting new kid"); - } - - /* set temporary bus of our own to catch error messages from the child - * (could we just set our own bus on it, or would the state change messages - * from the not-yet-added element confuse the state change algorithm? Let's - * play it safe for now) */ - bus = gst_bus_new (); - gst_element_set_bus (new_kid, bus); - gst_object_unref (bus); - - if (gst_element_set_state (new_kid, kid_state) == GST_STATE_CHANGE_FAILURE) { - GstMessage *msg; - - /* check if child posted an error message and if so re-post it on our bus - * so that the application gets to see a decent error and not our generic - * fallback error message which is completely indecipherable to the user */ - msg = gst_bus_pop_filtered (GST_ELEMENT_BUS (new_kid), GST_MESSAGE_ERROR); - if (msg) { - GST_INFO_OBJECT (sink, "Forwarding kid error: %" GST_PTR_FORMAT, msg); - gst_element_post_message (GST_ELEMENT (sink), msg); - } - GST_ELEMENT_ERROR (sink, CORE, STATE_CHANGE, (NULL), - ("Failed to set state on new child.")); - gst_element_set_bus (new_kid, NULL); - gst_object_unref (new_kid); - return FALSE; - } - gst_element_set_bus (new_kid, NULL); - gst_bin_add (GST_BIN (sink), new_kid); - - /* Now, replace the existing child */ - GST_OBJECT_LOCK (sink); - old_kid = sink->kid; - sink->kid = new_kid; - /* Mark whether a custom kid or fakesink has been installed */ - sink->have_kid = !is_fakesink; - GST_OBJECT_UNLOCK (sink); - - /* kill old element */ - if (old_kid) { - GST_DEBUG_OBJECT (sink, "Removing old kid %" GST_PTR_FORMAT, old_kid); - gst_element_set_state (old_kid, GST_STATE_NULL); - gst_bin_remove (GST_BIN (sink), old_kid); - gst_object_unref (old_kid); - /* Don't lose the SINK flag */ - GST_OBJECT_FLAG_SET (sink, GST_ELEMENT_IS_SINK); - } - - /* re-attach ghostpad */ - GST_DEBUG_OBJECT (sink, "Creating new ghostpad"); - targetpad = gst_element_get_static_pad (sink->kid, "sink"); - gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad); - gst_object_unref (targetpad); - GST_DEBUG_OBJECT (sink, "done changing child of switchsink"); - - /* FIXME: Push new-segment info and pre-roll buffer(s) into the kid */ - - return TRUE; -} - -gboolean -gst_switch_sink_set_child (GstSwitchSink * sink, GstElement * new_kid) -{ - GstState cur, next; - GstElement **p_kid; - - /* Nothing to do if clearing the child and we've already installed fakesink */ - if (new_kid == NULL && sink->kid != NULL && sink->have_kid == FALSE) - return TRUE; - - /* Store the new kid to be committed later */ - GST_OBJECT_LOCK (sink); - cur = GST_STATE (sink); - next = GST_STATE_NEXT (sink); - p_kid = &sink->new_kid; - gst_object_replace ((GstObject **) p_kid, (GstObject *) new_kid); - GST_OBJECT_UNLOCK (sink); - if (new_kid) - gst_object_unref (new_kid); - - /* Sometime, it would be lovely to allow sink changes even when - * already running, but this involves sending an appropriate new-segment - * and possibly prerolling etc */ - /* FIXME: Block the pad and replace the kid when it completes */ - if (cur > GST_STATE_READY || next == GST_STATE_PAUSED) { - GST_DEBUG_OBJECT (sink, - "Switch-sink is already running. Ignoring change of child."); - gst_object_unref (new_kid); - return TRUE; - } - - return gst_switch_sink_commit_new_kid (sink); -} - -static GstStateChangeReturn -gst_switch_sink_change_state (GstElement * element, GstStateChange transition) -{ - GstStateChangeReturn ret = GST_STATE_CHANGE_SUCCESS; - GstSwitchSink *sink = GST_SWITCH_SINK (element); - - ret = GST_CALL_PARENT_WITH_DEFAULT (GST_ELEMENT_CLASS, change_state, - (element, transition), GST_STATE_CHANGE_SUCCESS); - - switch (transition) { - case GST_STATE_CHANGE_READY_TO_NULL: - if (!gst_switch_sink_reset (sink)) - ret = GST_STATE_CHANGE_FAILURE; - break; - default: - break; - } - - return ret; -} |