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goom: add a sink_query to eat allocation queries

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We should not forward allocation queries for audio to the video sink.
This commit is contained in:
Stefan Sauer 2011-11-08 08:49:05 +01:00
parent de020130e6
commit 3e82471125
1 changed files with 26 additions and 0 deletions
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26
gst/goom/gstgoom.c
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@ -99,6 +99,7 @@ static gboolean gst_goom_src_event (GstPad * pad, GstEvent * event);
static gboolean gst_goom_sink_event (GstPad * pad, GstEvent * event);
static gboolean gst_goom_src_query (GstPad * pad, GstQuery * query);
static gboolean gst_goom_sink_query (GstPad * pad, GstQuery * query);
#define gst_goom_parent_class parent_class
G_DEFINE_TYPE (GstGoom, gst_goom, GST_TYPE_ELEMENT);
@ -135,6 +136,8 @@ gst_goom_init (GstGoom * goom)
GST_DEBUG_FUNCPTR (gst_goom_chain));
gst_pad_set_event_function (goom->sinkpad,
GST_DEBUG_FUNCPTR (gst_goom_sink_event));
gst_pad_set_query_function (goom->sinkpad,
GST_DEBUG_FUNCPTR (gst_goom_sink_query));
gst_element_add_pad (GST_ELEMENT (goom), goom->sinkpad);
goom->srcpad = gst_pad_new_from_static_template (&src_template, "src");
@ -461,6 +464,29 @@ gst_goom_src_query (GstPad * pad, GstQuery * query)
return res;
}
static gboolean
gst_goom_sink_query (GstPad * pad, GstQuery * query)
{
gboolean res = FALSE;
GstGoom *goom;
goom = GST_GOOM (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_ALLOCATION:
/* we convert audio to video, don't pass allocation queries for audio
* through */
break;
default:
res = gst_pad_peer_query (goom->srcpad, query);
break;
}
gst_object_unref (goom);
return res;
}
/* make sure we are negotiated */
static GstFlowReturn
ensure_negotiated (GstGoom * goom)