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gst/playback/gstdecodebin2.c: Protect caps property with the object lock.

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Original commit message from CVS:
* gst/playback/gstdecodebin2.c: (gst_decode_bin_dispose),
(gst_decode_bin_set_caps), (gst_decode_bin_get_caps),
(gst_decode_bin_set_subs_encoding),
(gst_decode_bin_get_subs_encoding),
(gst_decode_bin_autoplug_factories), (connect_pad), (are_raw_caps),
(deactivate_free_recursive):
Protect caps property with the object lock.
Protect encoding property with the object lock.
Keep list of elements we added that have the subtitle-encoding property.
Distribute the subtitle-encoding to all of the elements when it
changes.
This commit is contained in:
Wim Taymans 2008-03-24 11:36:08 +00:00
parent 877a45b791
commit 8eb84372bd
2 changed files with 68 additions and 26 deletions
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14
ChangeLog
View file

@ -1,3 +1,17 @@
2008-03-24 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/playback/gstdecodebin2.c: (gst_decode_bin_dispose),
(gst_decode_bin_set_caps), (gst_decode_bin_get_caps),
(gst_decode_bin_set_subs_encoding),
(gst_decode_bin_get_subs_encoding),
(gst_decode_bin_autoplug_factories), (connect_pad), (are_raw_caps),
(deactivate_free_recursive):
Protect caps property with the object lock.
Protect encoding property with the object lock.
Keep list of elements we added that have the subtitle-encoding property.
Distribute the subtitle-encoding to all of the elements when it
changes.
2008-03-24 Wim Taymans <wim.taymans@collabora.co.uk>
* gst-libs/gst/audio/gstaudiosink.c: (gst_audioringbuffer_release):

80
gst/playback/gstdecodebin2.c
View file

@ -100,6 +100,7 @@ struct _GstDecodeBin
gint nbpads; /* unique identifier for source pads */
GValueArray *factories; /* factories we can use for selecting elements */
GList *subtitles; /* List of elements with subtitle-encoding */
gboolean have_type; /* if we received the have_type signal */
guint have_type_id; /* signal id for have-type from typefind */
@ -654,6 +655,9 @@ gst_decode_bin_dispose (GObject * object)
remove_fakesink (decode_bin);
g_list_free (decode_bin->subtitles);
decode_bin->subtitles = NULL;
G_OBJECT_CLASS (parent_class)->dispose (object);
}
@ -685,13 +689,13 @@ gst_decode_bin_set_caps (GstDecodeBin * dbin, GstCaps * caps)
{
GST_DEBUG_OBJECT (dbin, "Setting new caps: %" GST_PTR_FORMAT, caps);
DECODE_BIN_LOCK (dbin);
GST_OBJECT_LOCK (dbin);
if (dbin->caps)
gst_caps_unref (dbin->caps);
if (caps)
gst_caps_ref (caps);
dbin->caps = caps;
DECODE_BIN_UNLOCK (dbin);
GST_OBJECT_UNLOCK (dbin);
}
/* _get_caps
@ -708,11 +712,11 @@ gst_decode_bin_get_caps (GstDecodeBin * dbin)
GST_DEBUG_OBJECT (dbin, "Getting currently set caps");
DECODE_BIN_LOCK (dbin);
GST_OBJECT_LOCK (dbin);
caps = dbin->caps;
if (caps)
gst_caps_ref (caps);
DECODE_BIN_UNLOCK (dbin);
GST_OBJECT_UNLOCK (dbin);
return caps;
}
@ -720,11 +724,21 @@ gst_decode_bin_get_caps (GstDecodeBin * dbin)
static void
gst_decode_bin_set_subs_encoding (GstDecodeBin * dbin, const gchar * encoding)
{
GList *walk;
GST_DEBUG_OBJECT (dbin, "Setting new encoding: %s", GST_STR_NULL (encoding));
DECODE_BIN_LOCK (dbin);
GST_OBJECT_LOCK (dbin);
g_free (dbin->encoding);
dbin->encoding = g_strdup (encoding);
GST_OBJECT_UNLOCK (dbin);
/* set the subtitle encoding on all added elements */
for (walk = dbin->subtitles; walk; walk = g_list_next (walk)) {
g_object_set (G_OBJECT (walk->data), "subtitle-encoding", dbin->encoding,
NULL);
}
DECODE_BIN_UNLOCK (dbin);
}
@ -735,9 +749,9 @@ gst_decode_bin_get_subs_encoding (GstDecodeBin * dbin)
GST_DEBUG_OBJECT (dbin, "Getting currently set encoding");
DECODE_BIN_LOCK (dbin);
GST_OBJECT_LOCK (dbin);
encoding = g_strdup (dbin->encoding);
DECODE_BIN_UNLOCK (dbin);
GST_OBJECT_UNLOCK (dbin);
return encoding;
}
@ -784,9 +798,6 @@ gst_decode_bin_get_property (GObject * object, guint prop_id,
}
static GValueArray *find_compatibles (GstDecodeBin * decode_bin,
GstPad * pad, const GstCaps * caps);
/*****
* Default autoplug signal handlers
*****/
@ -806,8 +817,11 @@ gst_decode_bin_autoplug_factories (GstElement * element, GstPad * pad,
{
GValueArray *result;
GST_DEBUG_OBJECT (element, "finding factories");
/* return all compatible factories for caps */
result = find_compatibles (GST_DECODE_BIN (element), pad, caps);
result =
gst_factory_list_filter (GST_DECODE_BIN_CAST (element)->factories, caps);
GST_DEBUG_OBJECT (element, "autoplug-factories returns %p", result);
@ -1047,6 +1061,7 @@ connect_pad (GstDecodeBin * dbin, GstElement * src, GstPad * pad,
GstElementFactory *factory;
GstElement *element;
GstPad *sinkpad;
gboolean subtitle;
/* take first factory */
factory = g_value_get_object (g_value_array_get_nth (factories, 0));
@ -1126,6 +1141,17 @@ connect_pad (GstDecodeBin * dbin, GstElement * src, GstPad * pad,
/* link this element further */
connect_element (dbin, element, group);
/* try to configure the subtitle encoding property when we can */
if (g_object_class_find_property (G_OBJECT_GET_CLASS (element),
"subtitle-encoding")) {
GST_DEBUG_OBJECT (dbin,
"setting subtitle-encoding=%s to element", dbin->encoding);
g_object_set (G_OBJECT (element), "subtitle-encoding", dbin->encoding,
NULL);
subtitle = TRUE;
} else
subtitle = FALSE;
/* Bring the element to the state of the parent */
if ((gst_element_set_state (element,
GST_STATE_PAUSED)) == GST_STATE_CHANGE_FAILURE) {
@ -1135,6 +1161,13 @@ connect_pad (GstDecodeBin * dbin, GstElement * src, GstPad * pad,
gst_bin_remove (GST_BIN (dbin), element);
continue;
}
if (subtitle) {
DECODE_BIN_LOCK (dbin);
/* we added the element now, add it to the list of subtitle-encoding
* elements when we can set the property */
dbin->subtitles = g_list_prepend (dbin->subtitles, element);
DECODE_BIN_UNLOCK (dbin);
}
res = TRUE;
break;
@ -1453,21 +1486,6 @@ caps_notify_group_cb (GstPad * pad, GParamSpec * unused, GstDecodeGroup * group)
gst_object_unref (element);
}
/* this function runs through the element factories and returns a value array of
* all elements that are able to sink the given caps
*/
static GValueArray *
find_compatibles (GstDecodeBin * decode_bin, GstPad * pad, const GstCaps * caps)
{
GValueArray *result;
GST_DEBUG_OBJECT (decode_bin, "finding factories");
result = gst_factory_list_filter (decode_bin->factories, caps);
return result;
}
/* Decide whether an element is a demuxer based on the
* klass and number/type of src pad templates it has */
static gboolean
@ -1531,7 +1549,10 @@ are_raw_caps (GstDecodeBin * dbin, GstCaps * caps)
GST_LOG_OBJECT (dbin, "Checking with caps %" GST_PTR_FORMAT, caps);
/* lock for getting the caps */
GST_OBJECT_LOCK (dbin);
intersection = gst_caps_intersect (dbin->caps, caps);
GST_OBJECT_UNLOCK (dbin);
res = (!(gst_caps_is_empty (intersection)));
@ -2059,6 +2080,9 @@ deactivate_free_recursive (GstDecodeGroup * group, GstElement * element)
GstIterator *it;
GstIteratorResult res;
gpointer point;
GstDecodeBin *dbin;
dbin = group->dbin;
GST_LOG ("element:%s", GST_ELEMENT_NAME (element));
@ -2106,7 +2130,11 @@ restart:
done:
gst_element_set_state (element, GST_STATE_NULL);
gst_bin_remove (GST_BIN (group->dbin), element);
DECODE_BIN_LOCK (dbin);
/* remove possible subtitle element */
dbin->subtitles = g_list_remove (dbin->subtitles, element);
DECODE_BIN_UNLOCK (dbin);
gst_bin_remove (GST_BIN (dbin), element);
beach:
gst_iterator_free (it);