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navseek: add hold_eos property

Browse source 
This property will tell the element to hold
the EOS event and keep it until the next
keystroke.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/merge_requests/792>
This commit is contained in:
Stéphane Cerveau 2020-10-29 14:54:16 +01:00
parent 81ecf076e8
commit d664f400aa
3 changed files with 55 additions and 2 deletions
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12
docs/gst_plugins_cache.json
View file

@ -3947,6 +3947,18 @@
}
},
"properties": {
"hold-eos": {
"blurb": "Hold eos until the next 'Return' keystroke",
"conditionally-available": false,
"construct": false,
"construct-only": false,
"controllable": false,
"default": "false",
"mutable": "null",
"readable": true,
"type": "gboolean",
"writable": true
},
"seek-offset": {
"blurb": "Time in seconds to seek by",
"conditionally-available": false,

43
gst/debugutils/gstnavseek.c
View file

@ -34,7 +34,8 @@
enum
{
PROP_0,
PROP_SEEKOFFSET
PROP_SEEKOFFSET,
PROP_HOLD_EOS,
};
GstStaticPadTemplate navseek_src_template = GST_STATIC_PAD_TEMPLATE ("src",
@ -83,6 +84,17 @@ gst_navseek_class_init (GstNavSeekClass * klass)
PROP_SEEKOFFSET, g_param_spec_double ("seek-offset", "Seek Offset",
"Time in seconds to seek by", 0.0, G_MAXDOUBLE, 5.0,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
/**
* navseek:hold-eos:
*
* Hold eos until the next 'Return' keystroke.
*
* Since: 1.20
*/
g_object_class_install_property (gobject_class,
PROP_HOLD_EOS, g_param_spec_boolean ("hold-eos", "Hold EOS",
"Hold eos until the next 'Return' keystroke", FALSE,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
gst_element_class_add_static_pad_template (element_class,
&navseek_sink_template);
@ -109,6 +121,8 @@ gst_navseek_init (GstNavSeek * navseek)
navseek->seek_offset = 5.0;
navseek->loop = FALSE;
navseek->hold_eos = FALSE;
navseek->eos = NULL;
navseek->grab_seg_start = FALSE;
navseek->grab_seg_end = FALSE;
navseek->segment_start = GST_CLOCK_TIME_NONE;
@ -277,6 +291,12 @@ gst_navseek_src_event (GstBaseTransform * trans, GstEvent * event)
gst_navseek_change_playback_rate (navseek, 1.0);
} else if (strcmp (key, "space") == 0) {
gst_navseek_toggle_play_pause (navseek);
} else if (strcmp (key, "Return") == 0) {
if (navseek->eos) {
gst_pad_push_event (GST_BASE_TRANSFORM (navseek)->srcpad,
navseek->eos);
navseek->eos = NULL;
}
}
} else {
break;
@ -307,6 +327,11 @@ gst_navseek_set_property (GObject * object, guint prop_id,
navseek->seek_offset = g_value_get_double (value);
GST_OBJECT_UNLOCK (navseek);
break;
case PROP_HOLD_EOS:
GST_OBJECT_LOCK (navseek);
navseek->hold_eos = g_value_get_boolean (value);
GST_OBJECT_UNLOCK (navseek);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -325,6 +350,11 @@ gst_navseek_get_property (GObject * object, guint prop_id,
g_value_set_double (value, navseek->seek_offset);
GST_OBJECT_UNLOCK (navseek);
break;
case PROP_HOLD_EOS:
GST_OBJECT_LOCK (navseek);
g_value_set_boolean (value, navseek->hold_eos);
GST_OBJECT_UNLOCK (navseek);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
@ -341,7 +371,11 @@ gst_navseek_sink_event (GstBaseTransform * trans, GstEvent * event)
GST_OBJECT_LOCK (navseek);
if (navseek->loop)
gst_navseek_segseek (navseek);
if (navseek->hold_eos)
navseek->eos = event;
GST_OBJECT_UNLOCK (navseek);
if (navseek->eos)
return TRUE;
break;
default:
break;
@ -385,6 +419,11 @@ gst_navseek_start (GstBaseTransform * trans)
static gboolean
gst_navseek_stop (GstBaseTransform * trans)
{
/* anything we should be doing here? */
GstNavSeek *navseek = GST_NAVSEEK (trans);
if (navseek->eos) {
gst_event_unref (navseek->eos);
navseek->eos = NULL;
}
return TRUE;
}

2
gst/debugutils/gstnavseek.h
View file

@ -45,6 +45,8 @@ struct _GstNavSeek
gdouble seek_offset;
gboolean loop;
gboolean hold_eos;
GstEvent* eos;
gboolean grab_seg_start;
gboolean grab_seg_end;
GstClockTime segment_start;