return ret;
}
+static void
+release_and_unref_pad (GstElement * element, GstPad * pad, gboolean requestpad)
+{
+ if (pad) {
+ if (requestpad)
+ gst_element_release_request_pad (element, pad);
+ gst_object_unref (pad);
+ }
+}
+
/**
* gst_element_link_pads_full:
* @src: a #GstElement containing the source pad.
GstPad *srcpad, *destpad;
GstPadTemplate *srctempl, *desttempl;
GstElementClass *srcclass, *destclass;
+ gboolean srcrequest, destrequest;
/* checks */
g_return_val_if_fail (GST_IS_ELEMENT (src), FALSE);
srcpadname ? srcpadname : "(any)", GST_ELEMENT_NAME (dest),
destpadname ? destpadname : "(any)");
+ srcrequest = FALSE;
+ destrequest = FALSE;
+
/* get a src pad */
if (srcpadname) {
/* name specified, look it up */
- if (!(srcpad = gst_element_get_static_pad (src, srcpadname)))
- srcpad = gst_element_get_request_pad (src, srcpadname);
+ if (!(srcpad = gst_element_get_static_pad (src, srcpadname))) {
+ if ((srcpad = gst_element_get_request_pad (src, srcpadname)))
+ srcrequest = TRUE;
+ }
if (!srcpad) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "no pad %s:%s",
GST_ELEMENT_NAME (src), srcpadname);
if (!(GST_PAD_DIRECTION (srcpad) == GST_PAD_SRC)) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "pad %s:%s is no src pad",
GST_DEBUG_PAD_NAME (srcpad));
- gst_object_unref (srcpad);
+ release_and_unref_pad (src, srcpad, srcrequest);
return FALSE;
}
if (GST_PAD_PEER (srcpad) != NULL) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS,
"pad %s:%s is already linked to %s:%s", GST_DEBUG_PAD_NAME (srcpad),
GST_DEBUG_PAD_NAME (GST_PAD_PEER (srcpad)));
+ /* already linked request pads look like static pads, so the request pad
+ * was never requested a second time above, so no need to release it */
gst_object_unref (srcpad);
return FALSE;
}
/* get a destination pad */
if (destpadname) {
/* name specified, look it up */
- if (!(destpad = gst_element_get_static_pad (dest, destpadname)))
- destpad = gst_element_get_request_pad (dest, destpadname);
+ if (!(destpad = gst_element_get_static_pad (dest, destpadname))) {
+ if ((destpad = gst_element_get_request_pad (dest, destpadname)))
+ destrequest = TRUE;
+ }
if (!destpad) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "no pad %s:%s",
GST_ELEMENT_NAME (dest), destpadname);
+ release_and_unref_pad (src, srcpad, srcrequest);
return FALSE;
} else {
if (!(GST_PAD_DIRECTION (destpad) == GST_PAD_SINK)) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "pad %s:%s is no sink pad",
GST_DEBUG_PAD_NAME (destpad));
- gst_object_unref (destpad);
+ release_and_unref_pad (src, srcpad, srcrequest);
+ release_and_unref_pad (dest, destpad, destrequest);
return FALSE;
}
if (GST_PAD_PEER (destpad) != NULL) {
"pad %s:%s is already linked to %s:%s",
GST_DEBUG_PAD_NAME (destpad),
GST_DEBUG_PAD_NAME (GST_PAD_PEER (destpad)));
+ release_and_unref_pad (src, srcpad, srcrequest);
+ /* already linked request pads look like static pads, so the request pad
+ * was never requested a second time above, so no need to release it */
gst_object_unref (destpad);
return FALSE;
}
/* two explicitly specified pads */
result = pad_link_maybe_ghosting (srcpad, destpad, flags);
- gst_object_unref (srcpad);
- gst_object_unref (destpad);
-
+ if (result) {
+ gst_object_unref (srcpad);
+ gst_object_unref (destpad);
+ } else {
+ release_and_unref_pad (src, srcpad, srcrequest);
+ release_and_unref_pad (dest, destpad, destrequest);
+ }
return result;
}
GST_DEBUG_PAD_NAME (srcpad));
if ((GST_PAD_DIRECTION (srcpad) == GST_PAD_SRC) &&
(GST_PAD_PEER (srcpad) == NULL)) {
+ gboolean temprequest = FALSE;
GstPad *temp;
if (destpadname) {
gst_object_ref (temp);
} else {
temp = gst_element_get_compatible_pad (dest, srcpad, NULL);
+ if (!GST_IS_GHOST_PAD (temp) &&
+ GST_PAD_TEMPLATE_PRESENCE (GST_PAD_PAD_TEMPLATE (temp)) ==
+ GST_PAD_REQUEST) {
+ temprequest = TRUE;
+ }
}
if (temp && pad_link_maybe_ghosting (srcpad, temp, flags)) {
}
if (temp) {
+ if (temprequest)
+ gst_element_release_request_pad (dest, temp);
gst_object_unref (temp);
}
}
if (srcpadname) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "no link possible from %s:%s to %s",
GST_DEBUG_PAD_NAME (srcpad), GST_ELEMENT_NAME (dest));
+ /* no need to release any request pad as both src- and destpadname must be
+ * set to end up here, but this case has already been taken care of above */
if (destpad)
gst_object_unref (destpad);
destpad = NULL;
}
- if (srcpad)
- gst_object_unref (srcpad);
- srcpad = NULL;
+ if (srcpad) {
+ release_and_unref_pad (src, srcpad, srcrequest);
+ srcpad = NULL;
+ }
if (destpad) {
/* loop through the existing pads in the destination */
if ((GST_PAD_DIRECTION (destpad) == GST_PAD_SINK) &&
(GST_PAD_PEER (destpad) == NULL)) {
GstPad *temp = gst_element_get_compatible_pad (src, destpad, NULL);
+ gboolean temprequest = FALSE;
+
+ if (temp) {
+ if (!GST_IS_GHOST_PAD (temp) &&
+ GST_PAD_TEMPLATE_PRESENCE (GST_PAD_PAD_TEMPLATE (temp)) ==
+ GST_PAD_REQUEST) {
+ temprequest = TRUE;
+ }
+ }
if (temp && pad_link_maybe_ghosting (temp, destpad, flags)) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "linked pad %s:%s to pad %s:%s",
gst_object_unref (destpad);
return TRUE;
}
- if (temp) {
- gst_object_unref (temp);
- }
+
+ release_and_unref_pad (src, temp, temprequest);
}
if (destpads) {
destpads = g_list_next (destpads);
if (destpadname) {
GST_CAT_DEBUG (GST_CAT_ELEMENT_PADS, "no link possible from %s to %s:%s",
GST_ELEMENT_NAME (src), GST_DEBUG_PAD_NAME (destpad));
- gst_object_unref (destpad);
+ release_and_unref_pad (dest, destpad, destrequest);
return FALSE;
} else {
- if (destpad)
+ /* no need to release any request pad as the case of unset destpatname and
+ * destpad being a requst pad has already been taken care of when looking
+ * though the destination pads above */
+ if (destpad) {
gst_object_unref (destpad);
+ }
destpad = NULL;
}
return TRUE;
}
/* it failed, so we release the request pads */
- if (srcpad)
+ if (srcpad) {
gst_element_release_request_pad (src, srcpad);
- if (destpad)
+ gst_object_unref (srcpad);
+ }
+ if (destpad) {
gst_element_release_request_pad (dest, destpad);
+ gst_object_unref (destpad);
+ }
}
gst_caps_unref (srccaps);
gst_caps_unref (destcaps);