diff --git a/sys/decklink/gstdecklinksrc.cpp b/sys/decklink/gstdecklinksrc.cpp index d9cb672401..c76c7a432b 100644 --- a/sys/decklink/gstdecklinksrc.cpp +++ b/sys/decklink/gstdecklinksrc.cpp @@ -60,6 +60,8 @@ static void gst_decklink_src_finalize (GObject * object); static GstStateChangeReturn gst_decklink_src_change_state (GstElement * element, GstStateChange transition); +static gboolean gst_decklink_src_send_event (GstElement * element, + GstEvent * event); static gboolean gst_decklink_src_audio_src_query (GstPad * pad, GstObject * parent, GstQuery * query); @@ -104,6 +106,8 @@ gst_decklink_src_class_init (GstDecklinkSrcClass * klass) gobject_class->set_property = gst_decklink_src_set_property; gobject_class->get_property = gst_decklink_src_get_property; gobject_class->finalize = gst_decklink_src_finalize; + + element_class->send_event = GST_DEBUG_FUNCPTR (gst_decklink_src_send_event); element_class->change_state = GST_DEBUG_FUNCPTR (gst_decklink_src_change_state); @@ -345,6 +349,60 @@ gst_decklink_src_finalize (GObject * object) G_OBJECT_CLASS (parent_class)->finalize (object); } +/* events sent to this element directly, mainly from the application */ +static gboolean +gst_decklink_src_send_event (GstElement * element, GstEvent * event) +{ + GstDecklinkSrc *src; + gboolean result = FALSE; + + src = GST_DECKLINK_SRC (element); + + GST_DEBUG_OBJECT (src, "handling event %p %" GST_PTR_FORMAT, event, event); + + switch (GST_EVENT_TYPE (event)) { + case GST_EVENT_EOS: + g_atomic_int_set (&src->pending_eos, TRUE); + GST_INFO_OBJECT (src, "EOS pending"); + result = TRUE; + break; + break; + case GST_EVENT_TAG: + case GST_EVENT_CUSTOM_DOWNSTREAM: + case GST_EVENT_CUSTOM_BOTH: + /* Insert TAG, CUSTOM_DOWNSTREAM, CUSTOM_BOTH in the dataflow */ + GST_OBJECT_LOCK (src); + src->pending_events = g_list_append (src->pending_events, event); + g_atomic_int_set (&src->have_events, TRUE); + GST_OBJECT_UNLOCK (src); + event = NULL; + result = TRUE; + break; + case GST_EVENT_CUSTOM_DOWNSTREAM_OOB: + case GST_EVENT_CUSTOM_BOTH_OOB: + /* insert a random custom event into the pipeline */ + GST_DEBUG_OBJECT (src, "pushing custom OOB event downstream"); + result = gst_pad_push_event (src->videosrcpad, gst_event_ref (event)); + result |= gst_pad_push_event (src->audiosrcpad, event); + /* we gave away the ref to the event in the push */ + event = NULL; + break; + case GST_EVENT_CUSTOM_UPSTREAM: + /* drop */ + case GST_EVENT_SEGMENT: + /* sending random SEGMENT downstream can break sync - drop */ + default: + GST_LOG_OBJECT (src, "dropping %s event", GST_EVENT_TYPE_NAME (event)); + break; + } + + /* if we still have a ref to the event, unref it now */ + if (event) + gst_event_unref (event); + + return result; +} + /* FIXME: post error messages for the misc. failures */ static gboolean gst_decklink_src_start (GstElement * element) @@ -491,6 +549,12 @@ gst_decklink_src_stop (GstElement * element) decklinksrc->input->DisableVideoInput (); decklinksrc->input->DisableAudioInput (); + g_list_free_full (decklinksrc->pending_events, + (GDestroyNotify) gst_mini_object_unref); + decklinksrc->pending_events = NULL; + decklinksrc->have_events = FALSE; + decklinksrc->pending_eos = FALSE; + return TRUE; } @@ -711,6 +775,25 @@ gst_decklink_src_task (void *priv) decklinksrc->started = TRUE; } + if (g_atomic_int_get (&decklinksrc->have_events)) { + GList *l; + + GST_OBJECT_LOCK (decklinksrc); + for (l = decklinksrc->pending_events; l != NULL; l = l->next) { + GstEvent *event = GST_EVENT (l->data); + + GST_DEBUG_OBJECT (decklinksrc, "pushing %s event", + GST_EVENT_TYPE_NAME (event)); + gst_pad_push_event (decklinksrc->videosrcpad, gst_event_ref (event)); + gst_pad_push_event (decklinksrc->audiosrcpad, event); + l->data = NULL; + } + g_list_free (decklinksrc->pending_events); + decklinksrc->pending_events = NULL; + g_atomic_int_set (&decklinksrc->have_events, FALSE); + GST_OBJECT_UNLOCK (decklinksrc); + } + mode = gst_decklink_get_mode (decklinksrc->mode); video_frame->GetBytes (&data); @@ -794,6 +877,12 @@ gst_decklink_src_task (void *priv) } } + if (g_atomic_int_compare_and_exchange (&decklinksrc->pending_eos, TRUE, + FALSE)) { + GST_INFO_OBJECT (decklinksrc, "EOS pending"); + ret = GST_FLOW_EOS; + } + done: if (audio_frame) diff --git a/sys/decklink/gstdecklinksrc.h b/sys/decklink/gstdecklinksrc.h index 33a01a6fb9..e6be409ec7 100644 --- a/sys/decklink/gstdecklinksrc.h +++ b/sys/decklink/gstdecklinksrc.h @@ -44,6 +44,11 @@ struct _GstDecklinkSrc GstPad *audiosrcpad; GstPad *videosrcpad; + gboolean pending_eos; /* ATOMIC */ + + gboolean have_events; /* ATOMIC */ + GList *pending_events; /* OBJECT_LOCK */ + IDeckLink *decklink; IDeckLinkInput *input; IDeckLinkConfiguration *config;