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multiqueue: correct overrun handling

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The control of wheteher a SingleQueue is full is not correct.
Rewrote single_queue_overrun_cb() so it checks the correct variables
when checking if the queue has reached the hard limits, and to
increase the max buffer limit once for each call.

https://bugzilla.gnome.org/show_bug.cgi?id=690557
This commit is contained in:
Branko Subasic 2012-12-20 13:31:02 +01:00 committed by Wim Taymans
parent 6c968bbdf1
commit 17bff49262
1 changed files with 25 additions and 31 deletions
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56
plugins/elements/gstmultiqueue.c
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@ -1804,16 +1804,31 @@ single_queue_overrun_cb (GstDataQueue * dq, GstSingleQueue * sq)
GstMultiQueue *mq = sq->mqueue;
GList *tmp;
GstDataQueueSize size;
gboolean filled = FALSE;
gboolean filled = TRUE;
gst_data_queue_get_level (sq->queue, &size);
GST_LOG_OBJECT (mq, "Single Queue %d is full", sq->id);
GST_LOG_OBJECT (mq,
"Single Queue %d: EOS %d, visible %u/%u, bytes %u/%u, time %"
G_GUINT64_FORMAT "/%" G_GUINT64_FORMAT, sq->id, sq->is_eos, size.visible,
sq->max_size.visible, size.bytes, sq->max_size.bytes, sq->cur_time,
sq->max_size.time);
GST_MULTI_QUEUE_MUTEX_LOCK (mq);
/* check if we reached the hard time/bytes limits */
if (sq->is_eos || IS_FILLED (sq, bytes, size.bytes) ||
IS_FILLED (sq, time, sq->cur_time)) {
goto done;
}
/* if hard limits are not reached then we allow one more buffer in the full
* queue, but only if any of the other singelqueues are empty */
for (tmp = mq->queues; tmp; tmp = g_list_next (tmp)) {
GstSingleQueue *oq = (GstSingleQueue *) tmp->data;
GstDataQueueSize ssize;
if (oq == sq)
continue;
GST_LOG_OBJECT (mq, "Checking Queue %d", oq->id);
@ -1822,43 +1837,22 @@ single_queue_overrun_cb (GstDataQueue * dq, GstSingleQueue * sq)
if (IS_FILLED (sq, visible, size.visible)) {
sq->max_size.visible = size.visible + 1;
GST_DEBUG_OBJECT (mq,
"Another queue is empty, bumping single queue %d max visible to %d",
sq->id, sq->max_size.visible);
"Queue %d is empty, bumping single queue %d max visible to %d",
oq->id, sq->id, sq->max_size.visible);
filled = FALSE;
break;
}
}
/* check if we reached the hard time/bytes limits */
gst_data_queue_get_level (oq->queue, &ssize);
GST_DEBUG_OBJECT (mq,
"queue %d: visible %u/%u, bytes %u/%u, time %" G_GUINT64_FORMAT "/%"
G_GUINT64_FORMAT, oq->id, ssize.visible, oq->max_size.visible,
ssize.bytes, oq->max_size.bytes, oq->cur_time, oq->max_size.time);
/* if this queue is filled completely we must signal overrun.
* FIXME, this seems wrong in many ways
* - we're comparing the filled level of this queue against the
* values of the other one
* - we should only do this after we found no empty queues, ie, move
* this check outside of the loop
* - the debug statement talks about a different queue than the one
* we are checking here.
*/
if (sq->is_eos || IS_FILLED (sq, bytes, ssize.bytes) ||
IS_FILLED (sq, time, sq->cur_time)) {
GST_LOG_OBJECT (mq, "Queue %d is filled EOS %d", sq->id, sq->is_eos);
filled = TRUE;
}
}
/* no queues were empty */
done:
GST_MULTI_QUEUE_MUTEX_UNLOCK (mq);
/* Overrun is always forwarded, since this is blocking the upstream element */
if (filled) {
GST_DEBUG_OBJECT (mq, "A queue is filled, signalling overrun");
GST_DEBUG_OBJECT (mq, "Queue %d is filled, signalling overrun", sq->id);
g_signal_emit (mq, gst_multi_queue_signals[SIGNAL_OVERRUN], 0);
}
return;
}
static void