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subparse: Implement SEEKING query

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This commit is contained in:
Sebastian Dröge 2009-08-04 14:29:41 +02:00
parent cd31b2e298
commit 7e119e46e5
2 changed files with 44 additions and 0 deletions
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43
gst/subparse/gstsubparse.c
View file

@ -86,6 +86,7 @@ static void gst_sub_parse_class_init (GstSubParseClass * klass);
static void gst_sub_parse_init (GstSubParse * subparse);
static gboolean gst_sub_parse_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_sub_parse_src_query (GstPad * pad, GstQuery * query);
static gboolean gst_sub_parse_sink_event (GstPad * pad, GstEvent * event);
static GstStateChangeReturn gst_sub_parse_change_state (GstElement * element,
@ -201,6 +202,8 @@ gst_sub_parse_init (GstSubParse * subparse)
subparse->srcpad = gst_pad_new_from_static_template (&src_templ, "src");
gst_pad_set_event_function (subparse->srcpad,
GST_DEBUG_FUNCPTR (gst_sub_parse_src_event));
gst_pad_set_query_function (subparse->srcpad,
GST_DEBUG_FUNCPTR (gst_sub_parse_src_query));
gst_element_add_pad (GST_ELEMENT (subparse), subparse->srcpad);
subparse->textbuf = g_string_new (NULL);
@ -217,6 +220,46 @@ gst_sub_parse_init (GstSubParse * subparse)
* Source pad functions.
*/
static gboolean
gst_sub_parse_src_query (GstPad * pad, GstQuery * query)
{
GstSubParse *self = GST_SUBPARSE (gst_pad_get_parent (pad));
gboolean ret = FALSE;
GST_DEBUG ("Handling %s query", GST_QUERY_TYPE_NAME (query));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_SEEKING:
{
GstFormat fmt;
gboolean seekable = FALSE;
ret = TRUE;
gst_query_parse_seeking (query, &fmt, NULL, NULL, NULL);
if (fmt == GST_FORMAT_TIME) {
GstQuery *peerquery = gst_query_new_seeking (GST_FORMAT_BYTES);
seekable = gst_pad_peer_query (self->sinkpad, peerquery);
if (seekable)
gst_query_parse_seeking (peerquery, NULL, &seekable, NULL, NULL);
gst_query_unref (peerquery);
}
gst_query_set_seeking (query, fmt, seekable, seekable ? 0 : -1, -1);
break;
}
default:
ret = gst_pad_peer_query (self->sinkpad, query);
break;
}
gst_object_unref (self);
return ret;
}
static gboolean
gst_sub_parse_src_event (GstPad * pad, GstEvent * event)
{

1
gst/subparse/samiparse.c
View file

@ -342,6 +342,7 @@ static xmlSAXHandler samiSAXHandlerStruct = {
NULL, /* endElementNsSAX2Func */
NULL /* xmlStructuredErrorFunc */
};
static xmlSAXHandlerPtr samiSAXHandler = &samiSAXHandlerStruct;
void