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goom2k1: report our latency correctly

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Fixes #631303
This commit is contained in:
Wim Taymans 2010-10-04 19:00:45 +02:00
parent 8c910a25fe
commit a060a65786
1 changed files with 61 additions and 0 deletions
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61
gst/goom2k1/gstgoom.c
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@ -95,6 +95,8 @@ static GstFlowReturn gst_goom_chain (GstPad * pad, GstBuffer * buffer);
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_setcaps (GstPad * pad, GstCaps * caps);
static gboolean gst_goom_src_setcaps (GstPad * pad, GstCaps * caps);
@ -174,6 +176,8 @@ gst_goom_init (GstGoom * goom)
GST_DEBUG_FUNCPTR (gst_goom_src_setcaps));
gst_pad_set_event_function (goom->srcpad,
GST_DEBUG_FUNCPTR (gst_goom_src_event));
gst_pad_set_query_function (goom->srcpad,
GST_DEBUG_FUNCPTR (gst_goom_src_query));
gst_element_add_pad (GST_ELEMENT (goom), goom->srcpad);
goom->adapter = gst_adapter_new ();
@ -392,6 +396,63 @@ gst_goom_sink_event (GstPad * pad, GstEvent * event)
return res;
}
static gboolean
gst_goom_src_query (GstPad * pad, GstQuery * query)
{
gboolean res;
GstGoom *goom;
goom = GST_GOOM (gst_pad_get_parent (pad));
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
/* We need to send the query upstream and add the returned latency to our
* own */
GstClockTime min_latency, max_latency;
gboolean us_live;
GstClockTime our_latency;
guint max_samples;
if ((res = gst_pad_peer_query (goom->sinkpad, query))) {
gst_query_parse_latency (query, &us_live, &min_latency, &max_latency);
GST_DEBUG_OBJECT (goom, "Peer latency: min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
/* the max samples we must buffer buffer */
max_samples = MAX (GOOM_SAMPLES, goom->spf);
our_latency =
gst_util_uint64_scale_int (max_samples, GST_SECOND, goom->rate);
GST_DEBUG_OBJECT (goom, "Our latency: %" GST_TIME_FORMAT,
GST_TIME_ARGS (our_latency));
/* we add some latency but only if we need to buffer more than what
* upstream gives us */
min_latency = MAX (our_latency, min_latency);
if (max_latency != -1)
max_latency = MAX (our_latency, max_latency);
GST_DEBUG_OBJECT (goom, "Calculated total latency : min %"
GST_TIME_FORMAT " max %" GST_TIME_FORMAT,
GST_TIME_ARGS (min_latency), GST_TIME_ARGS (max_latency));
gst_query_set_latency (query, TRUE, min_latency, max_latency);
}
break;
}
default:
res = gst_pad_peer_query (goom->sinkpad, query);
break;
}
gst_object_unref (goom);
return res;
}
static GstFlowReturn
get_buffer (GstGoom * goom, GstBuffer ** outbuf)
{