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multiqueue: Calculate interleave only within each streaming thread

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... and use the biggest interleave value among streaming threads.
This is to optimize multiqueue size adaptation on adaptive streaming
use case with "use-interleave" property.

https://bugzilla.gnome.org/show_bug.cgi?id=784448
This commit is contained in:
Seungha Yang 2017-07-03 15:17:33 +09:00 committed by Edward Hervey
parent ad6a655cf7
commit 1b0059e0c5
1 changed files with 30 additions and 18 deletions
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48
plugins/elements/gstmultiqueue.c
View file

@ -168,7 +168,8 @@ struct _GstSingleQueue
GstQuery *last_handled_query;
/* For interleave calculation */
GThread *thread;
GThread *thread; /* Streaming thread of SingleQueue */
GstClockTime interleave; /* Calculated interleve within the thread */
};
@ -203,7 +204,7 @@ static void recheck_buffering_status (GstMultiQueue * mq);
static void gst_single_queue_flush_queue (GstSingleQueue * sq, gboolean full);
static void calculate_interleave (GstMultiQueue * mq);
static void calculate_interleave (GstMultiQueue * mq, GstSingleQueue * sq);
static GstStaticPadTemplate sinktemplate = GST_STATIC_PAD_TEMPLATE ("sink_%u",
GST_PAD_SINK,
@ -806,7 +807,7 @@ gst_multi_queue_set_property (GObject * object, guint prop_id,
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
mq->min_interleave_time = g_value_get_uint64 (value);
if (mq->use_interleave)
calculate_interleave (mq);
calculate_interleave (mq, NULL);
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
break;
default:
@ -1259,41 +1260,49 @@ recheck_buffering_status (GstMultiQueue * mq)
}
static void
calculate_interleave (GstMultiQueue * mq)
calculate_interleave (GstMultiQueue * mq, GstSingleQueue * sq)
{
GstClockTimeDiff low, high;
GstClockTime interleave;
GstClockTime interleave, other_interleave = 0;
GList *tmp;
low = high = GST_CLOCK_STIME_NONE;
interleave = mq->interleave;
/* Go over all single queues and calculate lowest/highest value */
for (tmp = mq->queues; tmp; tmp = tmp->next) {
GstSingleQueue *sq = (GstSingleQueue *) tmp->data;
GstSingleQueue *oq = (GstSingleQueue *) tmp->data;
/* Ignore sparse streams for interleave calculation */
if (sq->is_sparse)
if (oq->is_sparse)
continue;
/* If a stream is not active yet (hasn't received any buffers), set
* a maximum interleave to allow it to receive more data */
if (!sq->active) {
if (!oq->active) {
GST_LOG_OBJECT (mq,
"queue %d is not active yet, forcing interleave to 5s", sq->id);
"queue %d is not active yet, forcing interleave to 5s", oq->id);
mq->interleave = 5 * GST_SECOND;
/* Update max-size time */
mq->max_size.time = mq->interleave;
SET_CHILD_PROPERTY (mq, time);
goto beach;
}
if (GST_CLOCK_STIME_IS_VALID (sq->cached_sinktime)) {
if (low == GST_CLOCK_STIME_NONE || sq->cached_sinktime < low)
low = sq->cached_sinktime;
if (high == GST_CLOCK_STIME_NONE || sq->cached_sinktime > high)
high = sq->cached_sinktime;
/* Calculate within each streaming thread */
if (sq && sq->thread != oq->thread) {
if (oq->interleave > other_interleave)
other_interleave = oq->interleave;
continue;
}
if (GST_CLOCK_STIME_IS_VALID (oq->cached_sinktime)) {
if (low == GST_CLOCK_STIME_NONE || oq->cached_sinktime < low)
low = oq->cached_sinktime;
if (high == GST_CLOCK_STIME_NONE || oq->cached_sinktime > high)
high = oq->cached_sinktime;
}
GST_LOG_OBJECT (mq,
"queue %d , sinktime:%" GST_STIME_FORMAT " low:%" GST_STIME_FORMAT
" high:%" GST_STIME_FORMAT, sq->id,
GST_STIME_ARGS (sq->cached_sinktime), GST_STIME_ARGS (low),
GST_STIME_ARGS (oq->cached_sinktime), GST_STIME_ARGS (low),
GST_STIME_ARGS (high));
}
@ -1301,6 +1310,9 @@ calculate_interleave (GstMultiQueue * mq)
interleave = high - low;
/* Padding of interleave and minimum value */
interleave = (150 * interleave / 100) + mq->min_interleave_time;
sq->interleave = interleave;
interleave = MAX (interleave, other_interleave);
/* Update the stored interleave if:
* * No data has arrived yet (high == low)
@ -1359,7 +1371,7 @@ update_time_level (GstMultiQueue * mq, GstSingleQueue * sq)
sq->sink_tainted = FALSE;
if (mq->use_interleave) {
sq->cached_sinktime = sink_time;
calculate_interleave (mq);
calculate_interleave (mq, sq);
}
}
} else
@ -2101,7 +2113,7 @@ gst_multi_queue_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
"Queue %d cached sink time now %" G_GINT64_FORMAT " %"
GST_STIME_FORMAT, sq->id, sq->cached_sinktime,
GST_STIME_ARGS (sq->cached_sinktime));
calculate_interleave (mq);
calculate_interleave (mq, sq);
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
}
@ -2260,7 +2272,7 @@ gst_multi_queue_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
stime = my_segment_to_running_time (&sq->sink_segment, val);
if (GST_CLOCK_STIME_IS_VALID (stime)) {
sq->cached_sinktime = stime;
calculate_interleave (mq);
calculate_interleave (mq, sq);
}
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
}