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pad: Let template related functions return new references

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gst_pad_template_get_caps(), gst_pad_get_pad_template_caps()
and gst_pad_get_pad_template() return a new reference of the
caps or template now and the return value needs to be
unreffed after usage.
This commit is contained in:
Sebastian Dröge 2011-05-17 11:59:00 +02:00
parent 50f91c0825
commit b5bc5b459a
4 changed files with 27 additions and 14 deletions
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8
docs/random/porting-to-0.11.txt
View file

@ -88,6 +88,14 @@ The 0.11 porting guide
gst_pad_proxy_getcaps() now takes a GstCaps* parameter to inform
the other side about the possible caps and preferences.
gst_pad_get_pad_template_caps() and gst_pad_get_pad_template()
return a new reference of the caps or template now and the return
value needs to be unreffed after usage.
* GstPadTemplate
gst_pad_template_get_caps() returns a new reference of the caps
and the return value needs to be unreffed after usage.
* GstMiniObject
A miniobject is now a simple refcounted structure holding the information
common to buffers, events, messages, queries and caps.

22
gst/gstpad.c
View file

@ -2171,19 +2171,21 @@ gst_pad_set_pad_template (GstPad * pad, GstPadTemplate * templ)
*
* Gets the template for @pad.
*
* Returns: (transfer none): the #GstPadTemplate from which this pad was
* instantiated, or %NULL if this pad has no template.
*
* FIXME: currently returns an unrefcounted padtemplate.
* Returns: (transfer full): the #GstPadTemplate from which this pad was
* instantiated, or %NULL if this pad has no template. Unref after
* usage.
*/
GstPadTemplate *
gst_pad_get_pad_template (GstPad * pad)
{
GstPadTemplate *templ;
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
return GST_PAD_PAD_TEMPLATE (pad);
}
templ = GST_PAD_PAD_TEMPLATE (pad);
return (templ ? gst_object_ref (templ) : NULL);
}
/* should be called with the pad LOCK held */
/* refs the caps, so caller is responsible for getting it unreffed */
@ -2815,10 +2817,10 @@ no_function:
*
* Gets the capabilities for @pad's template.
*
* Returns: (transfer none): the #GstCaps of this pad template. If you intend
* to keep a reference on the caps, make a copy (see gst_caps_copy ()).
* Returns: (transfer full): the #GstCaps of this pad template.
* Unref after usage.
*/
const GstCaps *
GstCaps *
gst_pad_get_pad_template_caps (GstPad * pad)
{
static GstStaticCaps anycaps = GST_STATIC_CAPS ("ANY");
@ -2826,7 +2828,7 @@ gst_pad_get_pad_template_caps (GstPad * pad)
g_return_val_if_fail (GST_IS_PAD (pad), NULL);
if (GST_PAD_PAD_TEMPLATE (pad))
return GST_PAD_TEMPLATE_CAPS (GST_PAD_PAD_TEMPLATE (pad));
return gst_pad_template_get_caps (GST_PAD_PAD_TEMPLATE (pad));
return gst_static_caps_get (&anycaps);
}

2
gst/gstpad.h
View file

@ -846,7 +846,7 @@ void gst_pad_set_acceptcaps_function (GstPad *pad, GstPadAcceptCapsFunction a
void gst_pad_set_fixatecaps_function (GstPad *pad, GstPadFixateCapsFunction fixatecaps);
void gst_pad_set_setcaps_function (GstPad *pad, GstPadSetCapsFunction setcaps);
G_CONST_RETURN GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
GstCaps* gst_pad_get_pad_template_caps (GstPad *pad);
/* capsnego function for linked/unlinked pads */
GstCaps * gst_pad_get_current_caps (GstPad * pad);

9
gst/gstpadtemplate.c
View file

@ -397,15 +397,18 @@ gst_static_pad_template_get_caps (GstStaticPadTemplate * templ)
*
* Gets the capabilities of the pad template.
*
* Returns: (transfer none): the #GstCaps of the pad template. If you need to
* keep a reference to the caps, take a ref (see gst_caps_ref ()).
* Returns: (transfer full): the #GstCaps of the pad template.
* Unref after usage.
*/
GstCaps *
gst_pad_template_get_caps (GstPadTemplate * templ)
{
GstCaps *caps;
g_return_val_if_fail (GST_IS_PAD_TEMPLATE (templ), NULL);
return GST_PAD_TEMPLATE_CAPS (templ);
caps = GST_PAD_TEMPLATE_CAPS (templ);
return (caps ? gst_caps_ref (caps) : NULL);
}
/**