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Add pad->unlinkfunc and gst_pad_set_unlink_function()

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Original commit message from CVS:
Add pad->unlinkfunc and gst_pad_set_unlink_function()
This commit is contained in:
David Schleef 2003-08-02 01:52:14 +00:00
parent 98670720c1
commit 4f207a7a8b
2 changed files with 31 additions and 0 deletions
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27
gst/gstpad.c
View file

@ -760,6 +760,26 @@ gst_pad_set_link_function (GstPad *pad,
GST_DEBUG_PAD_NAME (pad), GST_DEBUG_FUNCPTR_NAME (link));
}
/**
* gst_pad_set_unlink_function:
* @pad: a #GstPad to set the unlink function for.
* @unlink: the #GstPadUnlinkFunction to set.
*
* Sets the given unlink function for the pad. It will be called
* when the pad is unlinked.
*/
void
gst_pad_set_unlink_function (GstPad *pad,
GstPadUnlinkFunction unlink)
{
g_return_if_fail (pad != NULL);
g_return_if_fail (GST_IS_REAL_PAD (pad));
GST_RPAD_UNLINKFUNC (pad) = unlink;
GST_CAT_DEBUG (GST_CAT_PADS, "unlinkfunc for %s:%s set to %s",
GST_DEBUG_PAD_NAME (pad), GST_DEBUG_FUNCPTR_NAME (unlink));
}
/**
* gst_pad_set_getcaps_function:
* @pad: a #GstPad to set the getcaps function for.
@ -841,6 +861,13 @@ gst_pad_unlink (GstPad *srcpad,
g_return_if_fail ((GST_RPAD_DIRECTION (realsrc) == GST_PAD_SRC) &&
(GST_RPAD_DIRECTION (realsink) == GST_PAD_SINK));
if (GST_RPAD_UNLINKFUNC (srcpad)) {
GST_RPAD_UNLINKFUNC (srcpad) (srcpad);
}
if (GST_RPAD_UNLINKFUNC (sinkpad)) {
GST_RPAD_UNLINKFUNC (sinkpad) (sinkpad);
}
/* get the schedulers before we unlink */
src_sched = gst_pad_get_scheduler (GST_PAD_CAST (realsrc));
sink_sched = gst_pad_get_scheduler (GST_PAD_CAST (realsink));

4
gst/gstpad.h
View file

@ -147,6 +147,7 @@ typedef const GstEventMask* (*GstPadEventMaskFunction) (GstPad *pad);
typedef const GstQueryType* (*GstPadQueryTypeFunction) (GstPad *pad);
typedef GstPadLinkReturn (*GstPadLinkFunction) (GstPad *pad, GstCaps *caps);
typedef void (*GstPadUnlinkFunction) (GstPad *pad);
typedef GstCaps* (*GstPadGetCapsFunction) (GstPad *pad, GstCaps *caps);
typedef GstBufferPool* (*GstPadBufferPoolFunction) (GstPad *pad);
@ -189,6 +190,7 @@ struct _GstRealPad {
GstPadDirection direction;
GstPadLinkFunction linkfunc;
GstPadUnlinkFunction unlinkfunc;
GstRealPad *peer;
gpointer sched_private;
@ -264,6 +266,7 @@ struct _GstGhostPadClass {
#define GST_RPAD_EVENTMASKFUNC(pad) (((GstRealPad *)(pad))->eventmaskfunc)
#define GST_RPAD_LINKFUNC(pad) (((GstRealPad *)(pad))->linkfunc)
#define GST_RPAD_UNLINKFUNC(pad) (((GstRealPad *)(pad))->unlinkfunc)
#define GST_RPAD_GETCAPSFUNC(pad) (((GstRealPad *)(pad))->getcapsfunc)
#define GST_RPAD_BUFFERPOOLFUNC(pad) (((GstRealPad *)(pad))->bufferpoolfunc)
@ -426,6 +429,7 @@ const GstEventMask* gst_pad_get_event_masks_default (GstPad *pad);
void gst_pad_set_link_function (GstPad *pad, GstPadLinkFunction link);
gboolean gst_pad_can_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_can_link_filtered (GstPad *srcpad, GstPad *sinkpad, GstCaps *filtercaps);
void gst_pad_set_unlink_function (GstPad *pad, GstPadUnlinkFunction unlink);
gboolean gst_pad_link (GstPad *srcpad, GstPad *sinkpad);
gboolean gst_pad_link_filtered (GstPad *srcpad, GstPad *sinkpad, GstCaps *filtercaps);