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tee: add special case for only one pad conected

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It is not easy to setup a tee on the fly, thus apps need to add them always if
they might need them. This changes the code so, that if only one src-pad is
active, we push buffers directly. In the normal code path all buffers are pushed
with an extra ref, that forces followup inplace elements to copy the data.
This commit is contained in:
Stefan Kost 2009-12-03 16:44:28 +02:00
parent 15bac7df00
commit c92178827b
1 changed files with 17 additions and 1 deletions
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18
plugins/elements/gsttee.c
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@ -643,9 +643,25 @@ gst_tee_handle_data (GstTee * tee, gpointer data, gboolean is_list)
gst_tee_do_message (tee, tee->sinkpad, data, is_list);
GST_OBJECT_LOCK (tee);
pads = GST_ELEMENT_CAST (tee)->srcpads;
/* special case for just one pad that avoids reffing the buffer */
if (!pads->next) {
GstPad *pad = GST_PAD_CAST (pads->data);
GST_OBJECT_UNLOCK (tee);
if (pad == tee->pull_pad) {
ret = GST_FLOW_OK;
} else if (!is_list) {
ret = gst_pad_push (pad, GST_BUFFER_CAST (data));
} else {
ret = gst_pad_push_list (pad, GST_BUFFER_LIST_CAST (data));
}
return ret;
}
/* mark all pads as 'not pushed on yet' */
g_list_foreach (GST_ELEMENT_CAST (tee)->srcpads, (GFunc) clear_pads, tee);
g_list_foreach (pads, (GFunc) clear_pads, tee);
restart:
cret = GST_FLOW_NOT_LINKED;