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element: Specify the order of pad iterators

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The order of returned pads wasn't specified before, so let's specify
it and use an order which might prove the most useful : the order in
which pads were added to the element.

If someone changes the order, make sure users of those iterators from
now on don't rely on that order !
This commit is contained in:
Edward Hervey 2012-07-27 17:38:34 +02:00
parent c0f1ff5f79
commit 7a89e5d046
1 changed files with 12 additions and 3 deletions
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15
gst/gstelement.c
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@ -668,17 +668,17 @@ gst_element_add_pad (GstElement * element, GstPad * pad)
/* add it to the list */
switch (gst_pad_get_direction (pad)) {
case GST_PAD_SRC:
element->srcpads = g_list_prepend (element->srcpads, pad);
element->srcpads = g_list_append (element->srcpads, pad);
element->numsrcpads++;
break;
case GST_PAD_SINK:
element->sinkpads = g_list_prepend (element->sinkpads, pad);
element->sinkpads = g_list_append (element->sinkpads, pad);
element->numsinkpads++;
break;
default:
goto no_direction;
}
element->pads = g_list_prepend (element->pads, pad);
element->pads = g_list_append (element->pads, pad);
element->numpads++;
element->pads_cookie++;
GST_OBJECT_UNLOCK (element);
@ -1114,6 +1114,9 @@ gst_element_iterate_pad_list (GstElement * element, GList ** padlist)
* be freed after usage. Also more specialized iterators exists such as
* gst_element_iterate_src_pads() or gst_element_iterate_sink_pads().
*
* The order of pads returned by the iterator will be the order in which
* the pads were added to the element.
*
* Returns: (transfer full): the #GstIterator of #GstPad. Unref each pad
* after use.
*
@ -1133,6 +1136,9 @@ gst_element_iterate_pads (GstElement * element)
*
* Retrieves an iterator of @element's source pads.
*
* The order of pads returned by the iterator will be the order in which
* the pads were added to the element.
*
* Returns: (transfer full): the #GstIterator of #GstPad. Unref each pad
* after use.
*
@ -1152,6 +1158,9 @@ gst_element_iterate_src_pads (GstElement * element)
*
* Retrieves an iterator of @element's sink pads.
*
* The order of pads returned by the iterator will be the order in which
* the pads were added to the element.
*
* Returns: (transfer full): the #GstIterator of #GstPad. Unref each pad
* after use.
*