static void
gst_type_find_element_emit_have_type (GstTypeFindElement * typefind,
guint probability, GstCaps * caps)
{
GstEvent *event;
/* Update caps field immediatly so that caps queries and properties can be
* honored in all "have-type" signal handlers.
*/
GST_OBJECT_LOCK (typefind);
if (typefind->caps)
gst_caps_unref (typefind->caps);
typefind->caps = gst_caps_ref (caps);
GST_OBJECT_UNLOCK (typefind);
/* Only store the caps event at this point. We give signal handlers
* the chance to look at the caps before they are sent downstream.
* They are only forwarded downstream later in the default signal
* handler after all application signal handlers
*/
event = gst_event_new_caps (caps);
gst_pad_store_sticky_event (typefind->src, event);
gst_event_unref (event);
g_signal_emit (typefind, gst_type_find_element_signals[HAVE_TYPE], 0,
probability, caps);
}
static gboolean copy_sticky_events(GstPad *pad, GstEvent **event, gpointer user_data)
{
GstPad *new_pad = user_data;
if (GST_EVENT_TYPE(*event) != GST_EVENT_CAPS && GST_EVENT_TYPE(*event) != GST_EVENT_STREAM_START)
gst_pad_store_sticky_event(new_pad, *event);
return TRUE;
}
static gboolean
forward_sticky_events (GstPad * pad, GstEvent ** event, gpointer user_data)
{
GstPad *srcpad = GST_PAD_CAST (user_data);
GstFlowReturn ret;
ret = gst_pad_store_sticky_event (srcpad, *event);
if (ret != GST_FLOW_OK) {
GST_DEBUG_OBJECT (srcpad, "storing sticky event %p (%s) failed: %s", *event,
GST_EVENT_TYPE_NAME (*event), gst_flow_get_name (ret));
}
return TRUE;
}
static GList *
_flush_events (GstPad * pad, GList * events)
{
GList *tmp;
for (tmp = events; tmp; tmp = tmp->next) {
if (GST_EVENT_TYPE (tmp->data) == GST_EVENT_EOS ||
GST_EVENT_TYPE (tmp->data) == GST_EVENT_SEGMENT ||
!GST_EVENT_IS_STICKY (tmp->data) || pad == NULL) {
gst_event_unref (tmp->data);
} else {
gst_pad_store_sticky_event (pad, GST_EVENT_CAST (tmp->data));
}
}
g_list_free (events);
return NULL;
}
static gboolean
gst_type_find_element_sink_event (GstPad * pad, GstObject * parent,
GstEvent * event)
{
gboolean res = FALSE;
GstTypeFindElement *typefind = GST_TYPE_FIND_ELEMENT (parent);
GST_DEBUG_OBJECT (typefind, "got %s event in mode %d",
GST_EVENT_TYPE_NAME (event), typefind->mode);
switch (typefind->mode) {
case MODE_TYPEFIND:
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_CAPS:
{
GstCaps *caps;
/* Parse and push out our caps and data */
gst_event_parse_caps (event, &caps);
res = gst_type_find_element_setcaps (typefind, caps);
gst_event_unref (event);
break;
}
case GST_EVENT_GAP:
{
GST_FIXME_OBJECT (typefind,
"GAP events during typefinding not handled properly");
/* FIXME: These would need to be inserted in the stream at
* the right position between buffers, but we combine all
* buffers with a GstAdapter. Drop the GAP event for now,
* which will only cause an implicit GAP between buffers.
*/
gst_event_unref (event);
res = TRUE;
break;
}
case GST_EVENT_EOS:
{
GST_INFO_OBJECT (typefind, "Got EOS and no type found yet");
gst_type_find_element_chain_do_typefinding (typefind, FALSE, TRUE);
res = gst_pad_push_event (typefind->src, event);
break;
}
case GST_EVENT_FLUSH_STOP:{
GList *l;
GST_OBJECT_LOCK (typefind);
for (l = typefind->cached_events; l; l = l->next) {
if (GST_EVENT_IS_STICKY (l->data) &&
GST_EVENT_TYPE (l->data) != GST_EVENT_SEGMENT &&
GST_EVENT_TYPE (l->data) != GST_EVENT_EOS) {
gst_pad_store_sticky_event (typefind->src, l->data);
}
gst_event_unref (l->data);
}
g_list_free (typefind->cached_events);
typefind->cached_events = NULL;
gst_adapter_clear (typefind->adapter);
GST_OBJECT_UNLOCK (typefind);
/* fall through */
}
case GST_EVENT_FLUSH_START:
res = gst_pad_push_event (typefind->src, event);
break;
default:
/* Forward events that would happen before the caps event
* directly instead of storing them. There's no reason not
* to send them directly and we should only store events
* for later sending that would need to come after the caps
* event */
if (GST_EVENT_TYPE (event) < GST_EVENT_CAPS) {
res = gst_pad_push_event (typefind->src, event);
} else {
GST_DEBUG_OBJECT (typefind, "Saving %s event to send later",
GST_EVENT_TYPE_NAME (event));
GST_OBJECT_LOCK (typefind);
typefind->cached_events =
g_list_append (typefind->cached_events, event);
GST_OBJECT_UNLOCK (typefind);
res = TRUE;
}
break;
}
break;
case MODE_NORMAL:
res = gst_pad_push_event (typefind->src, event);
break;
case MODE_ERROR:
break;
default:
g_assert_not_reached ();
}
return res;
}
static GstMultipartPad *
gst_multipart_find_pad_by_mime (GstMultipartDemux * demux, gchar * mime,
gboolean * created)
{
GSList *walk;
walk = demux->srcpads;
while (walk) {
GstMultipartPad *pad = (GstMultipartPad *) walk->data;
if (!strcmp (pad->mime, mime)) {
if (created) {
*created = FALSE;
}
return pad;
}
walk = walk->next;
}
/* pad not found, create it */
{
GstPad *pad;
GstMultipartPad *mppad;
gchar *name;
const gchar *capsname;
GstCaps *caps;
gchar *stream_id;
GstEvent *event;
mppad = g_new0 (GstMultipartPad, 1);
GST_DEBUG_OBJECT (demux, "creating pad with mime: %s", mime);
name = g_strdup_printf ("src_%u", demux->numpads);
pad =
gst_pad_new_from_static_template (&multipart_demux_src_template_factory,
name);
g_free (name);
mppad->pad = pad;
mppad->mime = g_strdup (mime);
mppad->last_ret = GST_FLOW_OK;
mppad->last_ts = GST_CLOCK_TIME_NONE;
mppad->discont = TRUE;
demux->srcpads = g_slist_prepend (demux->srcpads, mppad);
demux->numpads++;
gst_pad_use_fixed_caps (pad);
gst_pad_set_active (pad, TRUE);
/* prepare and send stream-start */
if (!demux->have_group_id) {
event = gst_pad_get_sticky_event (demux->sinkpad,
GST_EVENT_STREAM_START, 0);
if (event) {
demux->have_group_id =
gst_event_parse_group_id (event, &demux->group_id);
gst_event_unref (event);
} else if (!demux->have_group_id) {
demux->have_group_id = TRUE;
demux->group_id = gst_util_group_id_next ();
}
}
stream_id = gst_pad_create_stream_id (pad,
GST_ELEMENT_CAST (demux), demux->mime_type);
event = gst_event_new_stream_start (stream_id);
if (demux->have_group_id)
gst_event_set_group_id (event, demux->group_id);
gst_pad_store_sticky_event (pad, event);
g_free (stream_id);
gst_event_unref (event);
/* take the mime type, convert it to the caps name */
capsname = gst_multipart_demux_get_gstname (demux, mime);
caps = gst_caps_from_string (capsname);
GST_DEBUG_OBJECT (demux, "caps for pad: %s", capsname);
gst_pad_set_caps (pad, caps);
gst_element_add_pad (GST_ELEMENT_CAST (demux), pad);
gst_caps_unref (caps);
if (created) {
*created = TRUE;
}
if (demux->singleStream) {
gst_element_no_more_pads (GST_ELEMENT_CAST (demux));
}
return mppad;
}
}
