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gst/gstpad.c: Implement the fixate function.

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Original commit message from CVS:
* gst/gstpad.c: (gst_pad_fixate_caps), (gst_pad_accept_caps):
Implement the fixate function.
Clean up acceptcaps.
This commit is contained in:
Wim Taymans 2005-07-06 13:20:47 +00:00
parent 80251ed8ed
commit 7ce828ba3a
2 changed files with 36 additions and 11 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2005-07-06 Wim Taymans <wim@fluendo.com>
* gst/gstpad.c: (gst_pad_fixate_caps), (gst_pad_accept_caps):
Implement the fixate function.
Clean up acceptcaps.
2005-07-06 Ronald S. Bultje <rbultje@ronald.bitfreak.net>
* docs/pwg/building-filterfactory.xml:

41
gst/gstpad.c
View file

@ -1748,6 +1748,7 @@ was_dispatching:
/**
* gst_pad_fixate_caps:
* @pad: a #GstPad to fixate
* @caps: the #GstCaps to fixate
*
* Fixate a caps on the given pad. Modifies the caps in place, so you should be
* that the caps are actually writable (see gst_caps_make_writable()).
@ -1755,7 +1756,15 @@ was_dispatching:
void
gst_pad_fixate_caps (GstPad * pad, GstCaps * caps)
{
/* FIXME, implement me, call the fixate function for the pad */
GstPadFixateCapsFunction fixatefunc;
g_return_if_fail (GST_IS_PAD (pad));
g_return_if_fail (caps != NULL);
fixatefunc = GST_PAD_FIXATECAPSFUNC (pad);
if (fixatefunc) {
fixatefunc (pad, caps);
}
}
/**
@ -1770,32 +1779,42 @@ gboolean
gst_pad_accept_caps (GstPad * pad, GstCaps * caps)
{
gboolean result;
GstPadAcceptCapsFunction acceptfunc;
g_return_val_if_fail (GST_IS_PAD (pad), FALSE);
/* any pad can be unnegotiated */
if (caps == NULL)
return TRUE;
GST_LOCK (pad);
acceptfunc = GST_PAD_ACCEPTCAPSFUNC (pad);
GST_CAT_DEBUG (GST_CAT_CAPS, "pad accept caps of %s:%s (%p)",
GST_DEBUG_PAD_NAME (pad), pad);
GST_UNLOCK (pad);
if (GST_PAD_ACCEPTCAPSFUNC (pad)) {
if (acceptfunc) {
/* we can call the function */
result = GST_PAD_ACCEPTCAPSFUNC (pad) (pad, caps);
result = acceptfunc (pad, caps);
} else {
/* else see get the caps and see if it intersects to something
* not empty */
GstCaps *intersect;
GstCaps *allowed;
allowed = gst_pad_get_caps_unlocked (pad);
intersect = gst_caps_intersect (allowed, caps);
if (gst_caps_is_empty (intersect))
result = FALSE;
else
result = TRUE;
}
GST_UNLOCK (pad);
allowed = gst_pad_get_caps (pad);
if (allowed) {
intersect = gst_caps_intersect (allowed, caps);
result = !gst_caps_is_empty (intersect);
gst_caps_unref (allowed);
gst_caps_unref (intersect);
} else {
result = FALSE;
}
}
return result;
}