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funnel: handle GAP event to forwards sticky events into downstream

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If no data is coming and funnel receive GAP event, need to forwards sticky events
into downstream if it needs.

https://bugzilla.gnome.org/show_bug.cgi?id=738202
This commit is contained in:
hoonhee.lee 2014-12-05 14:16:52 +09:00 committed by Olivier Crête
parent 58f9c1dd71
commit 8ce1f4d470
2 changed files with 139 additions and 0 deletions
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9
plugins/elements/gstfunnel.c
View file

@ -317,6 +317,15 @@ gst_funnel_sink_event (GstPad * pad, GstObject * parent, GstEvent * event)
GST_OBJECT_LOCK (funnel);
fpad->got_eos = FALSE;
GST_OBJECT_UNLOCK (funnel);
} else if (GST_EVENT_TYPE (event) == GST_EVENT_GAP) {
/* If no data is coming and we receive GAP event, need to forward sticky events. */
unlock = TRUE;
GST_PAD_STREAM_LOCK (funnel->srcpad);
GST_OBJECT_LOCK (funnel);
gst_object_replace ((GstObject **) & funnel->last_sinkpad,
GST_OBJECT (pad));
GST_OBJECT_UNLOCK (funnel);
gst_pad_sticky_events_foreach (pad, forward_events, funnel->srcpad);
}
if (forward)

130
tests/check/elements/funnel.c
View file

@ -243,6 +243,135 @@ GST_START_TEST (test_funnel_eos)
GST_END_TEST;
guint nb_stream_start_event = 0;
guint nb_caps_event = 0;
guint nb_segment_event = 0;
guint nb_gap_event = 0;
static GstPadProbeReturn
event_counter (GstObject * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
fail_unless (event != NULL);
fail_unless (GST_IS_EVENT (event));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_STREAM_START:
++nb_stream_start_event;
break;
case GST_EVENT_CAPS:
++nb_caps_event;
break;
case GST_EVENT_SEGMENT:
++nb_segment_event;
break;
case GST_EVENT_GAP:
++nb_gap_event;
break;
default:
break;
}
return GST_PAD_PROBE_OK;
}
/*
* Push GAP events into funnel to forward sticky events.
* Funnel element shoud also treat GAP events likes buffers.
* For example, funnel can be used for internal subtitle with streamiddemux.
* +--------------------------------------------------------------------------+
* | playbin +--------------------------------+ |
* | +--------------+ +----------------+ | +------------+ playsink | |
* | | uridecodebin | | input-selector | | | video-sink | | |
* | | | +----------------+ | +------------+ | |
* | | | | | |
* | | | +----------------+ | +------------+ | |
* | | | | input-selector | | | audio-sink | | |
* | | | +----------------+ | +------------+ | |
* | | | | | |
* | | | +----------------+ | +---------------+ +----------+ | |
* | | | | funnel | | | streamiddemux | | appsink0 | | |
* | +--------------+ +----------------+ | +---------------+ +----------+ | |
* | | +----------+ | |
* | | | appsinkn | | |
* | | +----------+ | |
* | +--------------------------------+ |
* +--------------------------------------------------------------------------+
* If no data was received in funnel and then sticky events can be pending continuously.
* And streamiddemux only receive gap events continuously.
* Thus, pipeline can not be constructed completely.
* For support it, need to handle GAP events likes buffers.
*/
GST_START_TEST (test_funnel_gap_event)
{
struct TestData td;
guint probe = 0;
setup_test_objects (&td, chain_ok);
nb_stream_start_event = 0;
nb_caps_event = 0;
nb_segment_event = 0;
nb_gap_event = 0;
bufcount = 0;
probe = gst_pad_add_probe (td.mysink, GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
(GstPadProbeCallback) event_counter, NULL, NULL);
/* push a gap event to srcpad1 to push sticky events */
fail_unless (gst_pad_push_event (td.mysrc1, gst_event_new_gap (0,
GST_SECOND)));
fail_unless (nb_stream_start_event == 1);
fail_unless (nb_caps_event == 1);
fail_unless (nb_segment_event == 1);
fail_unless (nb_gap_event == 1);
/* push a gap event to srcpad2 to push sticky events */
fail_unless (gst_pad_push_event (td.mysrc2, gst_event_new_gap (0,
GST_SECOND)));
fail_unless (nb_stream_start_event == 2);
fail_unless (nb_caps_event == 2);
fail_unless (nb_segment_event == 2);
fail_unless (nb_gap_event == 2);
/* push a gap event to srcpad2 */
fail_unless (gst_pad_push_event (td.mysrc2, gst_event_new_gap (0,
GST_SECOND)));
fail_unless (nb_stream_start_event == 2);
fail_unless (nb_caps_event == 2);
fail_unless (nb_segment_event == 2);
fail_unless (nb_gap_event == 3);
/* push a gap event to srcpad1 */
fail_unless (gst_pad_push_event (td.mysrc1, gst_event_new_gap (0,
GST_SECOND)));
fail_unless (nb_stream_start_event == 3);
fail_unless (nb_caps_event == 3);
fail_unless (nb_segment_event == 3);
fail_unless (nb_gap_event == 4);
/* push buffer */
fail_unless (gst_pad_push (td.mysrc1, gst_buffer_new ()) == GST_FLOW_OK);
fail_unless (gst_pad_push (td.mysrc2, gst_buffer_new ()) == GST_FLOW_OK);
fail_unless (nb_stream_start_event == 4);
fail_unless (nb_caps_event == 4);
fail_unless (nb_segment_event == 4);
fail_unless (nb_gap_event == 4);
fail_unless (bufcount == 2);
gst_pad_remove_probe (td.mysink, probe);
release_test_objects (&td);
}
GST_END_TEST;
static Suite *
funnel_suite (void)
{
@ -252,6 +381,7 @@ funnel_suite (void)
tc_chain = tcase_create ("funnel simple");
tcase_add_test (tc_chain, test_funnel_simple);
tcase_add_test (tc_chain, test_funnel_eos);
tcase_add_test (tc_chain, test_funnel_gap_event);
suite_add_tcase (s, tc_chain);
return s;