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multiqueue: Recheck buffering status after changing low threshold

Browse source 
https://bugzilla.gnome.org/show_bug.cgi?id=763757
This commit is contained in:
Carlos Rafael Giani 2016-04-14 11:54:32 +02:00 committed by Sebastian Dröge
parent a1d2f387c6
commit 3bd5aeac52
2 changed files with 96 additions and 0 deletions
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5
plugins/elements/gstmultiqueue.c
View file

@ -618,6 +618,11 @@ gst_multi_queue_set_property (GObject * object, guint prop_id,
break;
case PROP_LOW_PERCENT:
mq->low_percent = g_value_get_int (value);
/* Recheck buffering status - the new low-percent value might
* be above the current fill level. If the old low-percent one
* was below the current level, this means that mq->buffering is
* disabled and needs to be re-enabled. */
recheck_buffering_status (mq);
break;
case PROP_HIGH_PERCENT:
mq->high_percent = g_value_get_int (value);

91
tests/check/elements/multiqueue.c
View file

@ -1069,6 +1069,96 @@ GST_START_TEST (test_high_threshold_change)
GST_END_TEST;
GST_START_TEST (test_low_threshold_change)
{
/* This tests what happens if the queue isn't currently buffering and the
* low-threshold is raised above the current fill level. */
GstElement *pipe;
GstElement *mq, *fakesink;
GstPad *inputpad;
GstPad *mq_sinkpad;
GstPad *sinkpad;
GstSegment segment;
GThread *thread;
/* Setup test pipeline with one multiqueue and one fakesink */
pipe = gst_pipeline_new ("testbin");
mq = gst_element_factory_make ("multiqueue", NULL);
fail_unless (mq != NULL);
gst_bin_add (GST_BIN (pipe), mq);
fakesink = gst_element_factory_make ("fakesink", NULL);
fail_unless (fakesink != NULL);
gst_bin_add (GST_BIN (pipe), fakesink);
/* Block fakesink sinkpad flow to ensure the queue isn't emptied
* by the prerolling sink */
sinkpad = gst_element_get_static_pad (fakesink, "sink");
gst_pad_add_probe (sinkpad, GST_PAD_PROBE_TYPE_BLOCK, block_probe, NULL,
NULL);
gst_object_unref (sinkpad);
/* Enable buffering and set the low/high thresholds to 1%/5%. This ensures
* that after pushing one data block, the high threshold is reached, and
* buffering ceases. */
g_object_set (mq,
"use-buffering", (gboolean) TRUE,
"max-size-bytes", (guint) 1000 * 1000,
"max-size-buffers", (guint) 0,
"max-size-time", (guint64) 0,
"extra-size-bytes", (guint) 0,
"extra-size-buffers", (guint) 0,
"extra-size-time", (guint64) 0,
"low-percent", (gint) 1, "high-percent", (gint) 5, NULL);
gst_segment_init (&segment, GST_FORMAT_TIME);
inputpad = gst_pad_new ("dummysrc", GST_PAD_SRC);
gst_pad_set_query_function (inputpad, mq_dummypad_query);
mq_sinkpad = gst_element_get_request_pad (mq, "sink_%u");
fail_unless (mq_sinkpad != NULL);
fail_unless (gst_pad_link (inputpad, mq_sinkpad) == GST_PAD_LINK_OK);
gst_pad_set_active (inputpad, TRUE);
gst_pad_push_event (inputpad, gst_event_new_stream_start ("test"));
gst_pad_push_event (inputpad, gst_event_new_segment (&segment));
gst_object_unref (mq_sinkpad);
fail_unless (gst_element_link (mq, fakesink));
/* Start pipeline in paused state to ensure the sink remains
* in preroll mode and blocks */
gst_element_set_state (pipe, GST_STATE_PAUSED);
/* Feed data. queue will be filled to 8% (because it pushes 80000 bytes),
* which is above the high-threshold, ensuring that the queue disables
* its buffering mode internally. */
thread = g_thread_new ("push1", pad_push_datablock_thread, inputpad);
g_thread_join (thread);
/* Check for the buffering message; it should indicate 100% relative fill
* level (Note that the percentage from the message is normalized) */
CHECK_FOR_BUFFERING_MSG (pipe, 100);
/* Set low threshold to a 10%, which is above the current fill level of 8%.
* As a result, the queue must re-enable its buffering mode, and post the
* current relative fill level of 40% (since high-percent is also set to 20%
* and 8%/20% = 40%). */
g_object_set (mq, "high-percent", (gint) 20, "low-percent", (gint) 10, NULL);
CHECK_FOR_BUFFERING_MSG (pipe, 40);
gst_element_set_state (pipe, GST_STATE_NULL);
gst_object_unref (inputpad);
gst_object_unref (pipe);
}
GST_END_TEST;
static gpointer
pad_push_thread (gpointer data)
{
@ -1419,6 +1509,7 @@ multiqueue_suite (void)
tcase_add_test (tc_chain, test_sparse_stream);
tcase_add_test (tc_chain, test_initial_fill_above_high_threshold);
tcase_add_test (tc_chain, test_high_threshold_change);
tcase_add_test (tc_chain, test_low_threshold_change);
tcase_add_test (tc_chain, test_limit_changes);
tcase_add_test (tc_chain, test_buffering_with_none_pts);