return TRUE;
}
+static GstCaps *
+gst_type_find_guess_by_extension (GstTypeFindElement *typefind, GstPad *pad,
+ GstTypeFindProbability *probability)
+{
+ GstQuery *query;
+ gchar *uri;
+ size_t len;
+ gint find;
+ GstCaps *caps;
+
+ query = gst_query_new_uri ();
+
+ /* try getting the caps with an uri query and from the extension */
+ if (!gst_pad_peer_query (pad, query))
+ goto peer_query_failed;
+
+ gst_query_parse_uri (query, &uri);
+ if (uri == NULL)
+ goto no_uri;
+
+ GST_DEBUG_OBJECT (typefind, "finding extension of %s", uri);
+
+ /* find the extension on the uri, this is everything after a '.' */
+ len = strlen (uri);
+ find = len - 1;
+
+ while (find >= 0) {
+ if (uri[find] == '.')
+ break;
+ find--;
+ }
+ if (find < 0)
+ goto no_extension;
+
+ GST_DEBUG_OBJECT (typefind, "found extension %s", &uri[find+1]);
+
+ caps = gst_type_find_helper_for_extension (GST_OBJECT_CAST (typefind), &uri[find+1]);
+ if (caps)
+ *probability = GST_TYPE_FIND_MAXIMUM;
+
+ gst_query_unref (query);
+
+ return caps;
+
+ /* ERRORS */
+peer_query_failed:
+ {
+ GST_WARNING_OBJECT (typefind, "failed to query peer uri");
+ gst_query_unref (query);
+ return NULL;
+ }
+no_uri:
+ {
+ GST_WARNING_OBJECT (typefind, "could not parse the peer uri");
+ gst_query_unref (query);
+ return NULL;
+ }
+no_extension:
+ {
+ GST_WARNING_OBJECT (typefind, "could not find uri extension in %s", uri);
+ gst_query_unref (query);
+ return NULL;
+ }
+}
+
static GstFlowReturn
gst_type_find_element_chain (GstPad * pad, GstBuffer * buffer)
{
2. try to pull type find.
3. deactivate pull mode.
4. src pad might have been activated push by the state change. deactivate.
- 5. if we didn't find any caps, fail.
- 6. emit have-type; maybe the app connected the source pad to something.
- 7. if the sink pad is activated, we are in pull mode. succeed.
+ 5. if we didn't find any caps, try getting the uri extension by doing an uri
+ query.
+ 6. if we didn't find any caps, fail.
+ 7. emit have-type; maybe the app connected the source pad to something.
+ 8. if the sink pad is activated, we are in pull mode. succeed.
otherwise activate both pads in push mode and succeed.
*/
/* 5 */
if (!found_caps || probability < typefind->min_probability) {
+ found_caps = gst_type_find_guess_by_extension (typefind, pad, &probability);
+ }
+
+ /* 6 */
+ if (!found_caps || probability < typefind->min_probability) {
GST_ELEMENT_ERROR (typefind, STREAM, TYPE_NOT_FOUND, (NULL), (NULL));
gst_caps_replace (&found_caps, NULL);
return FALSE;
}
done:
- /* 6 */
+ /* 7 */
g_signal_emit (typefind, gst_type_find_element_signals[HAVE_TYPE],
0, probability, found_caps);
gst_caps_unref (found_caps);
typefind->mode = MODE_NORMAL;
- /* 7 */
+ /* 8 */
if (gst_pad_is_active (pad))
return TRUE;
else {