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cea608mux: expose force-live property

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Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/7765>
This commit is contained in:
Mathieu Duponchelle 2024-10-28 14:37:04 +01:00 committed by GStreamer Marge Bot
parent c02d41c259
commit 99441e14f3
2 changed files with 76 additions and 9 deletions
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14
subprojects/gst-plugins-bad/docs/plugins/gst_plugins_cache.json
View file

@ -8023,6 +8023,20 @@
"type": "GstAggregatorPad"
}
},
"properties": {
"force-live": {
"blurb": "Always operate in live mode and aggregate on timeout regardless of whether any live sources are linked upstream",
"conditionally-available": false,
"construct": false,
"construct-only": true,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
}
},
"rank": "none"
},
"line21decoder": {

71
subprojects/gst-plugins-bad/ext/closedcaption/gstcea608mux.c
View file

@ -49,6 +49,14 @@
GST_DEBUG_CATEGORY_STATIC (gst_cea608_mux_debug);
#define GST_CAT_DEFAULT gst_cea608_mux_debug
enum
{
PROP_0,
PROP_FORCE_LIVE,
};
#define DEFAULT_FORCE_LIVE FALSE
static GstStaticPadTemplate srctemplate = GST_STATIC_PAD_TEMPLATE ("src",
GST_PAD_SRC,
GST_PAD_ALWAYS,
@ -70,11 +78,6 @@ G_DEFINE_TYPE (GstCea608Mux, gst_cea608_mux, GST_TYPE_AGGREGATOR);
GST_ELEMENT_REGISTER_DEFINE (cea608mux, "cea608mux",
GST_RANK_NONE, GST_TYPE_CEA608MUX);
enum
{
PROP_0,
};
static void
gst_cea608_mux_finalize (GObject * object)
{
@ -296,14 +299,15 @@ gst_cea608_mux_aggregate (GstAggregator * aggregator, gboolean timeout)
gst_buffer_unmap (buffer, &map);
gst_buffer_unref (buffer);
} else {
/* We got flushed */
} else if (!timeout) {
/* We got flushed and still have time to wait before the deadline */
flow_ret = GST_AGGREGATOR_FLOW_NEED_DATA;
}
} else if (all_pads_eos (aggregator)) {
} else if (!gst_aggregator_get_force_live (aggregator)
&& all_pads_eos (aggregator)) {
GST_INFO_OBJECT (self, "EOS!");
flow_ret = GST_FLOW_EOS;
} else {
} else if (!timeout) {
GST_LOG_OBJECT (self, "Need more data");
flow_ret = GST_AGGREGATOR_FLOW_NEED_DATA;
}
@ -395,6 +399,36 @@ gst_cea608_mux_clip (GstAggregator * aggregator, GstAggregatorPad * pad,
return buffer;
}
static void
gst_cea608_mux_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
case PROP_FORCE_LIVE:
g_value_set_boolean (value,
gst_aggregator_get_force_live (GST_AGGREGATOR (object)));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_cea608_mux_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
switch (prop_id) {
case PROP_FORCE_LIVE:
gst_aggregator_set_force_live (GST_AGGREGATOR (object),
g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_cea608_mux_class_init (GstCea608MuxClass * klass)
{
@ -407,6 +441,8 @@ gst_cea608_mux_class_init (GstCea608MuxClass * klass)
aggregator_class = (GstAggregatorClass *) klass;
gobject_class->finalize = gst_cea608_mux_finalize;
gobject_class->get_property = gst_cea608_mux_get_property;
gobject_class->set_property = gst_cea608_mux_set_property;
gst_element_class_set_static_metadata (gstelement_class,
"Closed Caption Muxer",
@ -430,6 +466,23 @@ gst_cea608_mux_class_init (GstCea608MuxClass * klass)
GST_DEBUG_CATEGORY_INIT (gst_cea608_mux_debug, "cea608mux",
0, "Closed Caption muxer");
/**
* cea608mux:force-live:
*
* Causes the element to aggregate on a timeout even when no live source is
* connected to its sinks. See #GstAggregator:min-upstream-latency for a
* companion property: in the vast majority of cases where you plan to plug in
* live sources with a non-zero latency, you should set it to a non-zero value.
*
* Since: 1.26
*/
g_object_class_install_property (gobject_class, PROP_FORCE_LIVE,
g_param_spec_boolean ("force-live", "Force live",
"Always operate in live mode and aggregate on timeout regardless of "
"whether any live sources are linked upstream",
DEFAULT_FORCE_LIVE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_CONSTRUCT_ONLY));
}
static void