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gstaggregator: pads must inherit from #GstAggregatorPad

Browse source 
Document this, and take advantage of that fact to use
GstAggregator.srcpad.segment instead of GstAggregator.segment

https://bugzilla.gnome.org/show_bug.cgi?id=793942
This commit is contained in:
Mathieu Duponchelle 2018-03-01 00:31:11 +01:00
parent a567cc13a5
commit 8c10f1e2b4
3 changed files with 29 additions and 20 deletions
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33
libs/gst/base/gstaggregator.c
View file

@ -61,6 +61,10 @@
* flag these buffers with GST_BUFFER_FLAG_GAP and GST_BUFFER_FLAG_DROPPABLE
* to ease their identification and subsequent processing.
*
* * Subclasses must use (a subclass of) #GstAggregatorPad for both their
* sink and source pads.
* See gst_element_class_add_static_pad_template_with_gtype().
*
* This class used to live in gst-plugins-bad and was moved to core.
*
* Since: 1.14
@ -461,7 +465,8 @@ gst_aggregator_reset_flow_values (GstAggregator * self)
GST_OBJECT_LOCK (self);
self->priv->send_stream_start = TRUE;
self->priv->send_segment = TRUE;
gst_segment_init (&self->segment, GST_FORMAT_TIME);
gst_segment_init (&GST_AGGREGATOR_PAD (self->srcpad)->segment,
GST_FORMAT_TIME);
self->priv->first_buffer = TRUE;
GST_OBJECT_UNLOCK (self);
}
@ -479,7 +484,8 @@ gst_aggregator_push_mandatory_events (GstAggregator * self)
GST_INFO_OBJECT (self, "pushing stream start");
/* stream-start (FIXME: create id based on input ids) */
g_snprintf (s_id, sizeof (s_id), "agg-%08x", g_random_int ());
if (!gst_pad_push_event (self->srcpad, gst_event_new_stream_start (s_id))) {
if (!gst_pad_push_event (GST_PAD (self->srcpad),
gst_event_new_stream_start (s_id))) {
GST_WARNING_OBJECT (self->srcpad, "Sending stream start event failed");
}
self->priv->send_stream_start = FALSE;
@ -489,7 +495,7 @@ gst_aggregator_push_mandatory_events (GstAggregator * self)
GST_INFO_OBJECT (self, "pushing caps: %" GST_PTR_FORMAT,
self->priv->srccaps);
if (!gst_pad_push_event (self->srcpad,
if (!gst_pad_push_event (GST_PAD (self->srcpad),
gst_event_new_caps (self->priv->srccaps))) {
GST_WARNING_OBJECT (self->srcpad, "Sending caps event failed");
}
@ -499,7 +505,8 @@ gst_aggregator_push_mandatory_events (GstAggregator * self)
GST_OBJECT_LOCK (self);
if (self->priv->send_segment && !self->priv->flush_seeking) {
segment = gst_event_new_segment (&self->segment);
segment =
gst_event_new_segment (&GST_AGGREGATOR_PAD (self->srcpad)->segment);
if (!self->priv->seqnum)
/* This code-path is in preparation to be able to run without a source
@ -1828,8 +1835,8 @@ gst_aggregator_send_event (GstElement * element, GstEvent * event)
&start, &stop_type, &stop);
GST_OBJECT_LOCK (self);
gst_segment_do_seek (&self->segment, rate, fmt, flags, start_type, start,
stop_type, stop, NULL);
gst_segment_do_seek (&GST_AGGREGATOR_PAD (self->srcpad)->segment, rate, fmt,
flags, start_type, start, stop_type, stop, NULL);
self->priv->seqnum = gst_event_get_seqnum (event);
self->priv->first_buffer = FALSE;
GST_OBJECT_UNLOCK (self);
@ -1987,8 +1994,8 @@ gst_aggregator_do_seek (GstAggregator * self, GstEvent * event)
priv->flush_seeking = TRUE;
}
gst_segment_do_seek (&self->segment, rate, fmt, flags, start_type, start,
stop_type, stop, NULL);
gst_segment_do_seek (&GST_AGGREGATOR_PAD (self->srcpad)->segment, rate, fmt,
flags, start_type, start, stop_type, stop, NULL);
/* Seeking sets a position */
self->priv->first_buffer = FALSE;
@ -2356,10 +2363,11 @@ gst_aggregator_init (GstAggregator * self, GstAggregatorClass * klass)
self->priv->peer_latency_min = self->priv->sub_latency_min = 0;
self->priv->peer_latency_max = self->priv->sub_latency_max = 0;
self->priv->has_peer_latency = FALSE;
gst_aggregator_reset_flow_values (self);
self->srcpad = gst_pad_new_from_template (pad_template, "src");
gst_aggregator_reset_flow_values (self);
gst_pad_set_event_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_aggregator_src_pad_event_func));
gst_pad_set_query_function (self->srcpad,
@ -2517,6 +2525,7 @@ gst_aggregator_pad_chain_internal (GstAggregator * self,
if (self->priv->first_buffer) {
GstClockTime start_time;
GstAggregatorPad *srcpad = GST_AGGREGATOR_PAD (self->srcpad);
switch (self->priv->start_time_selection) {
case GST_AGGREGATOR_START_TIME_SELECTION_ZERO:
@ -2550,10 +2559,10 @@ gst_aggregator_pad_chain_internal (GstAggregator * self,
}
if (start_time != -1) {
if (self->segment.position == -1)
self->segment.position = start_time;
if (srcpad->segment.position == -1)
srcpad->segment.position = start_time;
else
self->segment.position = MIN (start_time, self->segment.position);
srcpad->segment.position = MIN (start_time, srcpad->segment.position);
GST_DEBUG_OBJECT (self, "Selecting start time %" GST_TIME_FORMAT,
GST_TIME_ARGS (start_time));

3
libs/gst/base/gstaggregator.h
View file

@ -140,9 +140,6 @@ struct _GstAggregator
GstPad * srcpad;
/* Only access with the object lock held */
GstSegment segment;
/*< private >*/
GstAggregatorPrivate * priv;

13
tests/check/libs/aggregator.c
View file

@ -152,9 +152,11 @@ gst_test_aggregator_class_init (GstTestAggregatorClass * klass)
GST_STATIC_PAD_TEMPLATE ("sink_%u", GST_PAD_SINK, GST_PAD_REQUEST,
GST_STATIC_CAPS_ANY);
gst_element_class_add_static_pad_template (gstelement_class, &_src_template);
gst_element_class_add_static_pad_template_with_gtype (gstelement_class,
&_src_template, GST_TYPE_AGGREGATOR_PAD);
gst_element_class_add_static_pad_template (gstelement_class, &_sink_template);
gst_element_class_add_static_pad_template_with_gtype (gstelement_class,
&_sink_template, GST_TYPE_AGGREGATOR_PAD);
gst_element_class_set_static_metadata (gstelement_class, "Aggregator",
"Testing", "Combine N buffers", "Stefan Sauer <ensonic@users.sf.net>");
@ -167,7 +169,8 @@ static void
gst_test_aggregator_init (GstTestAggregator * self)
{
GstAggregator *agg = GST_AGGREGATOR (self);
gst_segment_init (&agg->segment, GST_FORMAT_TIME);
gst_segment_init (&GST_AGGREGATOR_PAD (agg->srcpad)->segment,
GST_FORMAT_TIME);
self->timestamp = 0;
self->gap_expected = FALSE;
}
@ -808,8 +811,8 @@ GST_START_TEST (test_flushing_seek)
GST_BUFFER_TIMESTAMP (buf) = 0;
_chain_data_init (&data2, test.aggregator, buf, NULL);
gst_segment_init (&GST_AGGREGATOR (test.aggregator)->segment,
GST_FORMAT_TIME);
gst_segment_init (&GST_AGGREGATOR_PAD (GST_AGGREGATOR (test.
aggregator)->srcpad)->segment, GST_FORMAT_TIME);
/* now do a successful flushing seek */
event = gst_event_new_seek (1, GST_FORMAT_TIME, GST_SEEK_FLAG_FLUSH,