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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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timeline: Create stable stream IDs
This commit is contained in:
Thibault Saunier
parent
63a49edf1f
commit
5be359cf7f
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@ -317,8 +317,6 @@ ges_timeline_finalize (GObject * object)
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G_OBJECT_CLASS (ges_timeline_parent_class)->finalize (object);
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}
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static void
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ges_timeline_handle_message (GstBin * bin, GstMessage * message)
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{
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@ -1434,9 +1432,12 @@ track_element_removed_cb (GESTrack * track,
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static GstPadProbeReturn
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_pad_probe_cb (GstPad * mixer_pad, GstPadProbeInfo * info,
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GESTimeline * timeline)
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TrackPrivate * tr_priv)
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{
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GstEvent *event = GST_PAD_PROBE_INFO_EVENT (info);
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GESTimeline *timeline = tr_priv->timeline;
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gchar *stream_id;
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if (GST_EVENT_TYPE (event) == GST_EVENT_STREAM_START) {
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LOCK_DYN (timeline);
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if (timeline->priv->stream_start_group_id == -1) {
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@ -1445,7 +1446,9 @@ _pad_probe_cb (GstPad * mixer_pad, GstPadProbeInfo * info,
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timeline->priv->stream_start_group_id = gst_util_group_id_next ();
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}
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info->data = gst_event_make_writable (event);
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gst_event_unref (event);
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g_object_get (tr_priv->track, "id", &stream_id, NULL);
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info->data = gst_event_new_stream_start (stream_id);
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gst_event_set_group_id (GST_PAD_PROBE_INFO_EVENT (info),
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timeline->priv->stream_start_group_id);
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UNLOCK_DYN (timeline);
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@ -1500,7 +1503,7 @@ _ghost_track_srcpad (TrackPrivate * tr_priv)
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tr_priv->probe_id = gst_pad_add_probe (pad,
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GST_PAD_PROBE_TYPE_EVENT_DOWNSTREAM,
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(GstPadProbeCallback) _pad_probe_cb, tr_priv->timeline, NULL);
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(GstPadProbeCallback) _pad_probe_cb, tr_priv, NULL);
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UNLOCK_DYN (tr_priv->timeline);
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}
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@ -94,6 +94,7 @@ enum
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ARG_TYPE,
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ARG_DURATION,
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ARG_MIXING,
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ARG_ID,
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ARG_LAST,
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TRACK_ELEMENT_ADDED,
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TRACK_ELEMENT_REMOVED,
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@ -424,6 +425,9 @@ ges_track_get_property (GObject * object, guint property_id,
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case ARG_MIXING:
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g_value_set_boolean (value, track->priv->mixing);
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break;
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case ARG_ID:
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g_object_get_property (G_OBJECT (track->priv->composition), "id", value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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@ -448,6 +452,9 @@ ges_track_set_property (GObject * object, guint property_id,
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case ARG_MIXING:
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ges_track_set_mixing (track, g_value_get_boolean (value));
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break;
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case ARG_ID:
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g_object_set_property (G_OBJECT (track->priv->composition), "id", value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
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}
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@ -638,6 +645,11 @@ ges_track_class_init (GESTrackClass * klass)
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g_object_class_install_property (object_class, ARG_MIXING,
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properties[ARG_MIXING]);
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properties[ARG_ID] =
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g_param_spec_string ("id", "Id", "The stream-id of the composition",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
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g_object_class_install_property (object_class, ARG_ID, properties[ARG_ID]);
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gst_element_class_add_static_pad_template (gstelement_class,
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&ges_track_src_pad_template);
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@ -49,7 +49,7 @@ GST_DEBUG_CATEGORY_STATIC (nlecomposition_debug);
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enum
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{
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PROP_0,
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PROP_DEACTIVATED_ELEMENTS_STATE,
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PROP_ID,
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PROP_LAST,
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};
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@ -201,6 +201,8 @@ struct _NleCompositionPrivate
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NleUpdateStackReason updating_reason;
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guint seek_seqnum;
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gchar *id;
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};
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#define ACTION_CALLBACK(__action) (((GCClosure*) (__action))->callback)
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@ -208,6 +210,7 @@ struct _NleCompositionPrivate
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static guint _signals[LAST_SIGNAL] = { 0 };
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static GParamSpec *nleobject_properties[NLEOBJECT_PROP_LAST];
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static GParamSpec *properties[PROP_LAST];
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G_DEFINE_TYPE_WITH_CODE (NleComposition, nle_composition, NLE_TYPE_OBJECT,
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G_ADD_PRIVATE (NleComposition)
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@ -970,6 +973,41 @@ drop:
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return;
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}
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static void
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nle_composition_get_property (GObject * object, guint property_id,
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GValue * value, GParamSpec * pspec)
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{
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NleComposition *comp = (NleComposition *) object;
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switch (property_id) {
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case PROP_ID:
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GST_OBJECT_LOCK (comp);
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g_value_set_string (value, comp->priv->id);
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GST_OBJECT_UNLOCK (comp);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (comp, property_id, pspec);
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}
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}
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static void
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nle_composition_set_property (GObject * object, guint property_id,
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const GValue * value, GParamSpec * pspec)
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{
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NleComposition *comp = (NleComposition *) object;
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switch (property_id) {
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case PROP_ID:
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GST_OBJECT_LOCK (comp);
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g_free (comp->priv->id);
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comp->priv->id = g_value_dup_string (value);
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GST_OBJECT_UNLOCK (comp);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (comp, property_id, pspec);
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}
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}
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static void
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nle_composition_class_init (NleCompositionClass * klass)
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{
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@ -991,6 +1029,10 @@ nle_composition_class_init (NleCompositionClass * klass)
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gobject_class->dispose = GST_DEBUG_FUNCPTR (nle_composition_dispose);
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gobject_class->finalize = GST_DEBUG_FUNCPTR (nle_composition_finalize);
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gobject_class->get_property =
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GST_DEBUG_FUNCPTR (nle_composition_get_property);
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gobject_class->set_property =
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GST_DEBUG_FUNCPTR (nle_composition_set_property);
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gstelement_class->change_state = nle_composition_change_state;
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@ -1012,6 +1054,11 @@ nle_composition_class_init (NleCompositionClass * klass)
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nleobject_properties[NLEOBJECT_PROP_DURATION] =
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g_object_class_find_property (gobject_class, "duration");
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properties[PROP_ID] =
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g_param_spec_string ("id", "Id", "The stream-id of the composition",
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NULL, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS);
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g_object_class_install_properties (gobject_class, PROP_LAST, properties);
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_signals[COMMITED_SIGNAL] =
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g_signal_new ("commited", G_TYPE_FROM_CLASS (klass), G_SIGNAL_RUN_FIRST,
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0, NULL, NULL, g_cclosure_marshal_generic, G_TYPE_NONE, 1,
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@ -1063,6 +1110,8 @@ nle_composition_init (NleComposition * comp)
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nle_composition_reset (comp);
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priv->id = gst_pad_create_stream_id (NLE_OBJECT_SRC (comp),
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GST_ELEMENT (comp), NULL);
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priv->nle_event_pad_func = GST_PAD_EVENTFUNC (NLE_OBJECT_SRC (comp));
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gst_pad_set_event_function (NLE_OBJECT_SRC (comp),
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GST_DEBUG_FUNCPTR (nle_composition_event_handler));
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@ -1141,6 +1190,7 @@ nle_composition_finalize (GObject * object)
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g_mutex_clear (&priv->actions_lock);
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g_cond_clear (&priv->actions_cond);
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g_free (priv->id);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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@ -1273,8 +1323,10 @@ ghost_event_probe_handler (GstPad * ghostpad G_GNUC_UNUSED,
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case GST_EVENT_STREAM_START:
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if (g_atomic_int_compare_and_exchange (&priv->send_stream_start, TRUE,
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FALSE)) {
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/* FIXME: Do we want to create a new stream ID here? */
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GST_DEBUG_OBJECT (comp, "forward stream-start %p", event);
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gst_event_unref (event);
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event = info->data = gst_event_new_stream_start (g_strdup (priv->id));
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GST_INFO_OBJECT (comp, "forward stream-start %p (%s)", event, priv->id);
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} else {
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GST_DEBUG_OBJECT (comp, "dropping stream-start %p", event);
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retval = GST_PAD_PROBE_DROP;
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