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rtpbin: Handle rysnc of iterator when looking for free pad name
If a new pad was added while iterating then a pad could be returned that was already in use. Fixes #630451
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1 changed files with 31 additions and 9 deletions
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@ -2768,25 +2768,47 @@ gst_rtp_bin_get_free_pad_name (GstElement * element, GstPadTemplate * templ)
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{
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gboolean name_found = FALSE;
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gint session = 0;
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GstPad *pad = NULL;
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GstIterator *pad_it = NULL;
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gchar *pad_name = NULL;
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GST_DEBUG_OBJECT (element, "find a free pad name for template");
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while (!name_found) {
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gboolean done = FALSE;
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g_free (pad_name);
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pad_name = g_strdup_printf (templ->name_template, session++);
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pad_it = gst_element_iterate_pads (GST_ELEMENT (element));
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name_found = TRUE;
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while (name_found &&
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gst_iterator_next (pad_it, (gpointer) & pad) == GST_ITERATOR_OK) {
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gchar *name;
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while (!done) {
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gpointer data;
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name = gst_pad_get_name (pad);
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if (strcmp (name, pad_name) == 0)
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name_found = FALSE;
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g_free (name);
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gst_object_unref (pad);
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switch (gst_iterator_next (pad_it, &data)) {
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case GST_ITERATOR_OK:
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{
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GstPad *pad;
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gchar *name;
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pad = GST_PAD_CAST (data);
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name = gst_pad_get_name (pad);
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if (strcmp (name, pad_name) == 0) {
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done = TRUE;
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name_found = FALSE;
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}
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g_free (name);
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gst_object_unref (pad);
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break;
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}
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case GST_ITERATOR_ERROR:
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case GST_ITERATOR_RESYNC:
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/* restart iteration */
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done = TRUE;
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name_found = FALSE;
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session = 0;
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break;
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case GST_ITERATOR_DONE:
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done = TRUE;
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break;
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}
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}
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gst_iterator_free (pad_it);
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}
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