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aggregator: add segment, pts, dts and duration to samples-selected

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/588>
This commit is contained in:
Mathieu Duponchelle 2020-08-05 16:54:44 +02:00
parent 9961398d25
commit e243e152f0
2 changed files with 24 additions and 4 deletions
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23
libs/gst/base/gstaggregator.c
View file

@ -2735,6 +2735,10 @@ gst_aggregator_class_init (GstAggregatorClass * klass)
/**
* GstAggregator::samples-selected:
* @segment: The #GstSegment the next output buffer is part of
* @pts: The presentation timestamp of the next output buffer
* @dts: The decoding timestamp of the next output buffer
* @duration: The duration of the next output buffer
*
* Signals that the #GstAggregator subclass has selected the next set
* of input samples it will aggregate. Handlers may call
@ -2744,7 +2748,9 @@ gst_aggregator_class_init (GstAggregatorClass * klass)
*/
gst_aggregator_signals[SIGNAL_SAMPLES_SELECTED] =
g_signal_new ("samples-selected", G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, G_TYPE_NONE, 0);
G_SIGNAL_RUN_FIRST, 0, NULL, NULL, NULL, G_TYPE_NONE, 4,
GST_TYPE_SEGMENT | G_SIGNAL_TYPE_STATIC_SCOPE, GST_TYPE_CLOCK_TIME,
GST_TYPE_CLOCK_TIME, GST_TYPE_CLOCK_TIME);
}
static inline gpointer
@ -3584,6 +3590,9 @@ gst_aggregator_simple_get_next_time (GstAggregator * self)
* source pad, instead of directly pushing new segment events
* downstream.
*
* Subclasses MUST call this before gst_aggregator_selected_samples(),
* if it is used at all.
*
* Since: 1.18
*/
void
@ -3603,6 +3612,9 @@ gst_aggregator_update_segment (GstAggregator * self, const GstSegment * segment)
/**
* gst_aggregator_selected_samples:
* @pts: The presentation timestamp of the next output buffer
* @dts: The decoding timestamp of the next output buffer
* @duration: The duration of the next output buffer
*
* Subclasses should call this when they have prepared the
* buffers they will aggregate for each of their sink pads, but
@ -3610,15 +3622,20 @@ gst_aggregator_update_segment (GstAggregator * self, const GstSegment * segment)
* *how* aggregation should be performed, for example z-index
* for video aggregators.
*
* If gst_aggregator_update_segment() is used by the subclass,
* it MUST be called before gst_aggregator_selected_samples().
*
* Since: 1.18
*/
void
gst_aggregator_selected_samples (GstAggregator * self)
gst_aggregator_selected_samples (GstAggregator * self,
GstClockTime pts, GstClockTime dts, GstClockTime duration)
{
g_return_if_fail (GST_IS_AGGREGATOR (self));
if (self->priv->emit_signals) {
g_signal_emit (self, gst_aggregator_signals[SIGNAL_SAMPLES_SELECTED], 0);
g_signal_emit (self, gst_aggregator_signals[SIGNAL_SAMPLES_SELECTED], 0,
&GST_AGGREGATOR_PAD (self->srcpad)->segment, pts, dts, duration);
}
self->priv->selected_samples_called_or_warned = TRUE;

5
libs/gst/base/gstaggregator.h
View file

@ -418,7 +418,10 @@ GstSample * gst_aggregator_peek_next_sample (GstAggregator *self,
GstAggregatorPad * pad);
GST_BASE_API
void gst_aggregator_selected_samples (GstAggregator * self);
void gst_aggregator_selected_samples (GstAggregator * self,
GstClockTime pts,
GstClockTime dts,
GstClockTime duration);
/**
* GstAggregatorStartTimeSelection: