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gst/gstbin.c: Change email, cleanups add some more debug and comments.

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Original commit message from CVS:
* gst/gstbin.c: (gst_bin_class_init), (gst_bin_init),
(gst_bin_add_func), (gst_bin_remove_func),
(gst_bin_change_state_func), (gst_bin_continue_func):
Change email, cleanups add some more debug and comments.
Also set bus and clock on new elements when the pipeline was in error.
This commit is contained in:
Wim Taymans 2007-11-19 08:50:04 +00:00
parent f3d71f7ef5
commit f806905e67
2 changed files with 40 additions and 17 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2007-11-19 Wim Taymans <wim.taymans@gmail.com>
* gst/gstbin.c: (gst_bin_class_init), (gst_bin_init),
(gst_bin_add_func), (gst_bin_remove_func),
(gst_bin_change_state_func), (gst_bin_continue_func):
Change email, cleanups add some more debug and comments.
Also set bus and clock on new elements when the pipeline was in error.
2007-11-18 Stefan Kost <ensonic@users.sf.net>
* gst/gstbin.c:

49
gst/gstbin.c
View file

@ -1,7 +1,7 @@
/* GStreamer
*
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2004 Wim Taymans <wim@fluendo.com>
* 2004 Wim Taymans <wim.taymans@gmail.com>
*
* gstbin.c: GstBin container object and support code
*
@ -189,7 +189,8 @@ static const GstElementDetails gst_bin_details =
GST_ELEMENT_DETAILS ("Generic bin",
"Generic/Bin",
"Simple container object",
"Erik Walthinsen <omega@cse.ogi.edu>," "Wim Taymans <wim@fluendo.com>");
"Erik Walthinsen <omega@cse.ogi.edu>,"
"Wim Taymans <wim.taymans@gmail.com>");
/* a bin is toplevel if it has no parent or when it is configured to behave like
* a toplevel bin */
@ -258,6 +259,8 @@ enum
LAST_SIGNAL
};
#define DEFAULT_ASYNC_HANDLING FALSE
enum
{
PROP_0,
@ -402,7 +405,7 @@ gst_bin_class_init (GstBinClass * klass)
g_object_class_install_property (gobject_class, PROP_ASYNC_HANDLING,
g_param_spec_boolean ("async-handling", "Async Handling",
"The bin will handle Asynchronous state changes",
FALSE, G_PARAM_READWRITE));
DEFAULT_ASYNC_HANDLING, G_PARAM_READWRITE));
/**
* GstBin::element-added:
@ -481,7 +484,7 @@ gst_bin_init (GstBin * bin)
gst_bus_set_sync_handler (bus, (GstBusSyncHandler) bin_bus_handler, bin);
bin->priv = g_new0 (GstBinPrivate, 1);
bin->priv->asynchandling = FALSE;
bin->priv->asynchandling = DEFAULT_ASYNC_HANDLING;
}
static void
@ -911,12 +914,6 @@ gst_bin_add_func (GstBin * bin, GstElement * element)
bin->numchildren++;
bin->children_cookie++;
ret = GST_STATE_RETURN (bin);
/* no need to update the state if we are in error */
if (ret == GST_STATE_CHANGE_FAILURE)
goto no_state_recalc;
/* distribute the bus */
gst_element_set_bus (element, bin->child_bus);
@ -927,6 +924,11 @@ gst_bin_add_func (GstBin * bin, GstElement * element)
* a new clock will be selected */
gst_element_set_clock (element, GST_ELEMENT_CLOCK (bin));
ret = GST_STATE_RETURN (bin);
/* no need to update the state if we are in error */
if (ret == GST_STATE_CHANGE_FAILURE)
goto no_state_recalc;
/* update the bin state, the new element could have been an ASYNC or
* NO_PREROLL element */
ret = GST_STATE_RETURN (element);
@ -1248,6 +1250,7 @@ not_in_bin:
}
already_removing:
{
GST_CAT_INFO_OBJECT (GST_CAT_PARENTAGE, bin, "already removing child");
GST_OBJECT_UNLOCK (element);
return FALSE;
}
@ -1831,7 +1834,7 @@ gst_bin_sort_iterator_new (GstBin * bin)
* the most downstream elements (sinks) to the sources.
*
* This function is used internally to perform the state changes
* of the bin elements.
* of the bin elements and for clock selection.
*
* Each element yielded by the iterator will have its refcount increased, so
* unref after use.
@ -2022,6 +2025,8 @@ failed:
}
}
/* do latency correction. We do a latency query on the bin, and then send a
* LATENCY event on the elements fo configure them */
static gboolean
do_bin_latency (GstElement * element)
{
@ -2137,6 +2142,8 @@ gst_bin_change_state_func (GstElement * element, GstStateChange transition)
break;
}
/* this flag is used to make the async state changes return immediatly. We
* don't want them to interfere with this state change */
GST_OBJECT_LOCK (bin);
bin->polling = TRUE;
GST_OBJECT_UNLOCK (bin);
@ -2339,6 +2346,9 @@ gst_bin_send_event (GstElement * element, GstEvent * event)
return res;
}
/* this is the function called by the threadpool. When async elements commit
* their state, this function will attempt to bring the bin to the next state.
*/
static void
gst_bin_continue_func (BinContinueData * data)
{
@ -2356,6 +2366,8 @@ gst_bin_continue_func (BinContinueData * data)
GST_DEBUG_OBJECT (bin, "doing state continue");
GST_OBJECT_LOCK (bin);
/* if a new state change happened after this thread was scheduled, we return
* immediatly. */
if (data->cookie != GST_ELEMENT_CAST (bin)->state_cookie)
goto interrupted;
@ -2382,11 +2394,14 @@ gst_bin_continue_func (BinContinueData * data)
return;
interrupted:
GST_OBJECT_UNLOCK (bin);
GST_STATE_UNLOCK (bin);
GST_DEBUG_OBJECT (bin, "state continue aborted due to intervening change");
gst_object_unref (bin);
g_free (data);
{
GST_OBJECT_UNLOCK (bin);
GST_STATE_UNLOCK (bin);
GST_DEBUG_OBJECT (bin, "state continue aborted due to intervening change");
gst_object_unref (bin);
g_free (data);
return;
}
}
static GstBusSyncReply
@ -3028,6 +3043,7 @@ bin_query_latency_fold (GstElement * item, GValue * ret, QueryFold * fold)
gst_object_unref (item);
return TRUE;
}
static void
bin_query_latency_done (GstBin * bin, QueryFold * fold)
{
@ -3040,7 +3056,6 @@ bin_query_latency_done (GstBin * bin, QueryFold * fold)
fold->live);
}
/* generic fold, return first valid result */
static gboolean
bin_query_generic_fold (GstElement * item, GValue * ret, QueryFold * fold)