static GstClockTime gst_aggregator_get_latency_unlocked (GstAggregator * self);
-static void gst_aggregator_pad_buffer_consumed (GstAggregatorPad * pad);
+static void gst_aggregator_pad_buffer_consumed (GstAggregatorPad * pad,
+ GstBuffer * buffer);
GST_DEBUG_CATEGORY_STATIC (aggregator_debug);
#define GST_CAT_DEFAULT aggregator_debug
* the chain function is also happening.
*/
GMutex flush_lock;
+
+ /* properties */
+ gboolean emit_signals;
};
/* Must be called with PAD_LOCK held */
if (GST_IS_BUFFER (item->data)
&& klass->skip_buffer (aggpad, agg, item->data)) {
GST_LOG_OBJECT (aggpad, "Skipping %" GST_PTR_FORMAT, item->data);
- gst_aggregator_pad_buffer_consumed (aggpad);
+ gst_aggregator_pad_buffer_consumed (aggpad, GST_BUFFER (item->data));
gst_buffer_unref (item->data);
g_queue_delete_link (&aggpad->priv->data, item);
} else {
************************************/
G_DEFINE_TYPE_WITH_PRIVATE (GstAggregatorPad, gst_aggregator_pad, GST_TYPE_PAD);
+#define DEFAULT_PAD_EMIT_SIGNALS FALSE
+
+enum
+{
+ PAD_PROP_0,
+ PAD_PROP_EMIT_SIGNALS,
+};
+
+enum
+{
+ PAD_SIGNAL_BUFFER_CONSUMED,
+ PAD_LAST_SIGNAL,
+};
+
+static guint gst_aggregator_pad_signals[PAD_LAST_SIGNAL] = { 0 };
+
static void
gst_aggregator_pad_constructed (GObject * object)
{
}
static void
+gst_aggregator_pad_set_property (GObject * object, guint prop_id,
+ const GValue * value, GParamSpec * pspec)
+{
+ GstAggregatorPad *pad = GST_AGGREGATOR_PAD (object);
+
+ switch (prop_id) {
+ case PAD_PROP_EMIT_SIGNALS:
+ pad->priv->emit_signals = g_value_get_boolean (value);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gst_aggregator_pad_get_property (GObject * object, guint prop_id,
+ GValue * value, GParamSpec * pspec)
+{
+ GstAggregatorPad *pad = GST_AGGREGATOR_PAD (object);
+
+ switch (prop_id) {
+ case PAD_PROP_EMIT_SIGNALS:
+ g_value_set_boolean (value, pad->priv->emit_signals);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
gst_aggregator_pad_class_init (GstAggregatorPadClass * klass)
{
GObjectClass *gobject_class = (GObjectClass *) klass;
gobject_class->constructed = gst_aggregator_pad_constructed;
gobject_class->finalize = gst_aggregator_pad_finalize;
gobject_class->dispose = gst_aggregator_pad_dispose;
+ gobject_class->set_property = gst_aggregator_pad_set_property;
+ gobject_class->get_property = gst_aggregator_pad_get_property;
+
+ /**
+ * GstAggregatorPad::buffer-consumed:
+ *
+ * Signals that a buffer was consumed. As aggregator pads store buffers
+ * in an internal queue, there is no direct match between input and output
+ * buffers at any given time. This signal can be useful to forward metas
+ * such as #GstVideoTimeCodeMeta or #GstVideoCaptionMeta at the right time.
+ *
+ * Since: 1.16
+ */
+ gst_aggregator_pad_signals[PAD_SIGNAL_BUFFER_CONSUMED] =
+ g_signal_new ("buffer-consumed", G_TYPE_FROM_CLASS (klass),
+ G_SIGNAL_RUN_FIRST, 0, NULL, NULL, g_cclosure_marshal_generic,
+ G_TYPE_NONE, 1, GST_TYPE_BUFFER);
+
+ /**
+ * GstAggregatorPad:emit-signals:
+ *
+ * Enables the emission of signals such as #GstAggregatorPad::buffer-consumed
+ *
+ * Since: 1.16
+ */
+ g_object_class_install_property (gobject_class, PAD_PROP_EMIT_SIGNALS,
+ g_param_spec_boolean ("emit-signals", "Emit signals",
+ "Send signals to signal data consumption", DEFAULT_PAD_EMIT_SIGNALS,
+ G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
}
static void
gst_aggregator_pad_reset_unlocked (pad);
pad->priv->negotiated = FALSE;
+ pad->priv->emit_signals = DEFAULT_PAD_EMIT_SIGNALS;
}
/* Must be called with the PAD_LOCK held */
static void
-gst_aggregator_pad_buffer_consumed (GstAggregatorPad * pad)
+gst_aggregator_pad_buffer_consumed (GstAggregatorPad * pad, GstBuffer * buffer)
{
pad->priv->num_buffers--;
- GST_TRACE_OBJECT (pad, "Consuming buffer");
+ GST_TRACE_OBJECT (pad, "Consuming buffer %" GST_PTR_FORMAT, buffer);
+ if (buffer && pad->priv->emit_signals) {
+ g_signal_emit (pad, gst_aggregator_pad_signals[PAD_SIGNAL_BUFFER_CONSUMED],
+ 0, buffer);
+ }
PAD_BROADCAST_EVENT (pad);
}
buffer = aggclass->clip (self, pad, buffer);
if (buffer == NULL) {
- gst_aggregator_pad_buffer_consumed (pad);
+ gst_aggregator_pad_buffer_consumed (pad, buffer);
GST_TRACE_OBJECT (pad, "Clipping consumed the buffer");
}
}
if (buffer) {
pad->priv->clipped_buffer = NULL;
- gst_aggregator_pad_buffer_consumed (pad);
+ gst_aggregator_pad_buffer_consumed (pad, buffer);
GST_DEBUG_OBJECT (pad, "Consumed: %" GST_PTR_FORMAT, buffer);
}