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gst/selector/gstinputselector.c: Add pad property to configure behaviour of the unselected pad, it can return OK or N...

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Original commit message from CVS:
* gst/selector/gstinputselector.c: (gst_selector_pad_class_init),
(gst_selector_pad_init), (gst_selector_pad_set_property),
(gst_selector_pad_get_property), (gst_selector_pad_event),
(gst_selector_pad_bufferalloc), (gst_selector_pad_chain),
(gst_input_selector_set_active_pad):
Add pad property to configure behaviour of the unselected pad, it can
return OK or NOT_LINKED, based on the use case.
This commit is contained in:
Wim Taymans 2008-03-20 17:07:07 +00:00
parent a00c9300d4
commit e20e15e5a2
2 changed files with 82 additions and 25 deletions
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10
ChangeLog
View file

@ -1,3 +1,13 @@
2008-03-20 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/selector/gstinputselector.c: (gst_selector_pad_class_init),
(gst_selector_pad_init), (gst_selector_pad_set_property),
(gst_selector_pad_get_property), (gst_selector_pad_event),
(gst_selector_pad_bufferalloc), (gst_selector_pad_chain),
(gst_input_selector_set_active_pad):
Add pad property to configure behaviour of the unselected pad, it can
return OK or NOT_LINKED, based on the use case.
2008-03-20 Wim Taymans <wim.taymans@collabora.co.uk>
* gst/selector/gstinputselector.c:

97
gst/selector/gstinputselector.c
View file

@ -72,12 +72,15 @@ enum
PROP_LAST
};
#define DEFAULT_PAD_ALWAYS_OK TRUE
enum
{
PROP_PAD_0,
PROP_PAD_RUNNING_TIME,
PROP_PAD_TAGS,
PROP_PAD_ACTIVE,
PROP_PAD_ALWAYS_OK,
PROP_PAD_LAST
};
@ -121,6 +124,7 @@ struct _GstSelectorPad
gboolean active; /* when buffer have passed the pad */
gboolean eos; /* when EOS has been received */
gboolean discont; /* after switching we create a discont */
gboolean always_ok;
GstSegment segment; /* the current segment on the pad */
GstTagList *tags; /* last tags received on the pad */
@ -137,6 +141,8 @@ static void gst_selector_pad_init (GstSelectorPad * pad);
static void gst_selector_pad_finalize (GObject * object);
static void gst_selector_pad_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec);
static void gst_selector_pad_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec);
static GstPadClass *selector_pad_parent_class = NULL;
@ -187,6 +193,8 @@ gst_selector_pad_class_init (GstSelectorPadClass * klass)
gobject_class->get_property =
GST_DEBUG_FUNCPTR (gst_selector_pad_get_property);
gobject_class->set_property =
GST_DEBUG_FUNCPTR (gst_selector_pad_set_property);
g_object_class_install_property (gobject_class, PROP_PAD_RUNNING_TIME,
g_param_spec_int64 ("running-time", "Running time",
@ -198,11 +206,16 @@ gst_selector_pad_class_init (GstSelectorPadClass * klass)
g_object_class_install_property (gobject_class, PROP_PAD_ACTIVE,
g_param_spec_boolean ("active", "Active",
"If the pad is currently active", FALSE, G_PARAM_READABLE));
g_object_class_install_property (gobject_class, PROP_PAD_ALWAYS_OK,
g_param_spec_boolean ("always-ok", "Always OK",
"Make an inactive pad return OK instead of NOT_LINKED",
DEFAULT_PAD_ALWAYS_OK, G_PARAM_READWRITE));
}
static void
gst_selector_pad_init (GstSelectorPad * pad)
{
pad->always_ok = DEFAULT_PAD_ALWAYS_OK;
gst_selector_pad_reset (pad);
}
@ -219,6 +232,24 @@ gst_selector_pad_finalize (GObject * object)
G_OBJECT_CLASS (selector_pad_parent_class)->finalize (object);
}
static void
gst_selector_pad_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstSelectorPad *spad = GST_SELECTOR_PAD_CAST (object);
switch (prop_id) {
case PROP_PAD_ALWAYS_OK:
GST_OBJECT_LOCK (object);
spad->always_ok = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_selector_pad_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
@ -244,6 +275,11 @@ gst_selector_pad_get_property (GObject * object, guint prop_id,
gst_object_unref (sel);
break;
}
case PROP_PAD_ALWAYS_OK:
GST_OBJECT_LOCK (object);
g_value_set_boolean (value, spad->always_ok);
GST_OBJECT_UNLOCK (object);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -419,43 +455,46 @@ gst_selector_pad_bufferalloc (GstPad * pad, guint64 offset,
GstInputSelector *sel;
GstFlowReturn result;
GstPad *active_sinkpad;
GstSelectorPad *selpad;
sel = GST_INPUT_SELECTOR (gst_pad_get_parent (pad));
selpad = GST_SELECTOR_PAD_CAST (pad);
GST_DEBUG_OBJECT (pad, "received alloc");
GST_INPUT_SELECTOR_LOCK (sel);
active_sinkpad = gst_input_selector_activate_sinkpad (sel, pad);
if (pad != active_sinkpad && !sel->select_all)
goto not_active;
GST_INPUT_SELECTOR_UNLOCK (sel);
/* Fallback allocation for buffers from pads except the selected one */
if (pad != active_sinkpad && !sel->select_all) {
GST_DEBUG_OBJECT (sel,
"Pad %s:%s is not selected. Performing fallback allocation",
GST_DEBUG_PAD_NAME (pad));
*buf = NULL;
result = GST_FLOW_OK;
} else {
result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
/* FIXME: HACK. If buffer alloc returns not-linked, perform a fallback
* allocation. This should NOT be necessary, because playbin should
* properly block the source pad from running until it's finished hooking
* everything up, but playbin needs refactoring first. */
if (result == GST_FLOW_NOT_LINKED) {
GST_DEBUG_OBJECT (sel,
"No peer pad yet - performing fallback allocation for pad %s:%s",
GST_DEBUG_PAD_NAME (pad));
*buf = NULL;
result = GST_FLOW_OK;
}
}
result = gst_pad_alloc_buffer (sel->srcpad, offset, size, caps, buf);
done:
gst_object_unref (sel);
return result;
/* ERRORS */
not_active:
{
/* unselected pad, perform fallback alloc or return unlinked when
* asked */
GST_OBJECT_LOCK (selpad);
if (selpad->always_ok) {
GST_DEBUG_OBJECT (pad, "Not selected, performing fallback allocation");
*buf = NULL;
result = GST_FLOW_OK;
} else {
GST_DEBUG_OBJECT (pad, "Not selected, return NOT_LINKED");
result = GST_FLOW_NOT_LINKED;
}
GST_OBJECT_UNLOCK (selpad);
goto done;
}
}
/* must be called with the SELECTOR_LOCK, will block while the pad is blocked
@ -577,7 +616,15 @@ ignore:
selpad->discont = TRUE;
GST_INPUT_SELECTOR_UNLOCK (sel);
gst_buffer_unref (buf);
res = GST_FLOW_NOT_LINKED;
/* figure out what to return upstream */
GST_OBJECT_LOCK (selpad);
if (selpad->always_ok)
res = GST_FLOW_OK;
else
res = GST_FLOW_NOT_LINKED;
GST_OBJECT_UNLOCK (selpad);
goto done;
}
flushing: