static gboolean
gst_inter_audio_sink_query (GstBaseSink * sink, GstQuery * query)
{
GstInterAudioSink *interaudiosink = GST_INTER_AUDIO_SINK (sink);
gboolean ret;
GST_DEBUG_OBJECT (sink, "query");
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:{
gboolean live, us_live;
GstClockTime min_l, max_l;
GST_DEBUG_OBJECT (sink, "latency query");
if ((ret =
gst_base_sink_query_latency (GST_BASE_SINK_CAST (sink), &live,
&us_live, &min_l, &max_l))) {
GstClockTime base_latency, min_latency, max_latency;
/* we and upstream are both live, adjust the min_latency */
if (live && us_live) {
/* FIXME: The other side can change this value when it starts */
base_latency = interaudiosink->surface->audio_latency_time;
/* we cannot go lower than the buffer size and the min peer latency */
min_latency = base_latency + min_l;
/* the max latency is the max of the peer, we can delay an infinite
* amount of time. */
max_latency = (max_l == -1) ? -1 : (base_latency + max_l);
GST_DEBUG_OBJECT (sink,
"peer min %" GST_TIME_FORMAT ", our min latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (min_l),
GST_TIME_ARGS (min_latency));
GST_DEBUG_OBJECT (sink,
"peer max %" GST_TIME_FORMAT ", our max latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (max_l),
GST_TIME_ARGS (max_latency));
} else {
GST_DEBUG_OBJECT (sink,
"peer or we are not live, don't care about latency");
min_latency = min_l;
max_latency = max_l;
}
gst_query_set_latency (query, live, min_latency, max_latency);
}
break;
}
default:
ret =
GST_BASE_SINK_CLASS (gst_inter_audio_sink_parent_class)->query (sink,
query);
break;
}
return ret;
}
static gboolean
gst_decklink_audio_sink_query (GstBaseSink * bsink, GstQuery * query)
{
GstDecklinkAudioSink *self = GST_DECKLINK_AUDIO_SINK (bsink);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_LATENCY:
{
gboolean live, us_live;
GstClockTime min_l, max_l;
GST_DEBUG_OBJECT (self, "latency query");
/* ask parent first, it will do an upstream query for us. */
if ((res =
gst_base_sink_query_latency (GST_BASE_SINK_CAST (self), &live,
&us_live, &min_l, &max_l))) {
GstClockTime base_latency, min_latency, max_latency;
/* we and upstream are both live, adjust the min_latency */
if (live && us_live) {
GST_OBJECT_LOCK (self);
if (!self->info.rate) {
GST_OBJECT_UNLOCK (self);
GST_DEBUG_OBJECT (self,
"we are not negotiated, can't report latency yet");
res = FALSE;
goto done;
}
base_latency = self->buffer_time * 1000;
GST_OBJECT_UNLOCK (self);
/* we cannot go lower than the buffer size and the min peer latency */
min_latency = base_latency + min_l;
/* the max latency is the max of the peer, we can delay an infinite
* amount of time. */
max_latency =
(max_l ==
GST_CLOCK_TIME_NONE) ? GST_CLOCK_TIME_NONE : (base_latency +
max_l);
GST_DEBUG_OBJECT (self,
"peer min %" GST_TIME_FORMAT ", our min latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (min_l),
GST_TIME_ARGS (min_latency));
GST_DEBUG_OBJECT (self,
"peer max %" GST_TIME_FORMAT ", our max latency: %"
GST_TIME_FORMAT, GST_TIME_ARGS (max_l),
GST_TIME_ARGS (max_latency));
} else {
GST_DEBUG_OBJECT (self,
"peer or we are not live, don't care about latency");
min_latency = min_l;
max_latency = max_l;
}
gst_query_set_latency (query, live, min_latency, max_latency);
}
break;
}
default:
res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
break;
}
done:
return res;
}
