static gboolean
src_activate_mode (GstPad * pad,
GstObject * parent, GstPadMode mode, gboolean active)
{
GstAggregator *self = GST_AGGREGATOR (parent);
GstAggregatorClass *klass = GST_AGGREGATOR_GET_CLASS (parent);
if (klass->src_activate) {
if (klass->src_activate (self, mode, active) == FALSE) {
return FALSE;
}
}
if (active == TRUE) {
switch (mode) {
case GST_PAD_MODE_PUSH:
{
GST_INFO_OBJECT (pad, "Activating pad!");
_start_srcpad_task (self);
return TRUE;
}
default:
{
GST_ERROR_OBJECT (pad, "Only supported mode is PUSH");
return FALSE;
}
}
}
/* deactivating */
GST_INFO_OBJECT (self, "Deactivating srcpad");
_stop_srcpad_task (self, FALSE);
return TRUE;
}
/* GstAggregator vmethods default implementations */
static gboolean
_sink_event (GstAggregator * self, GstAggregatorPad * aggpad, GstEvent * event)
{
gboolean res = TRUE;
GstPad *pad = GST_PAD (aggpad);
GstAggregatorPrivate *priv = self->priv;
GstAggregatorPadPrivate *padpriv = aggpad->priv;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
{
GstBuffer *tmpbuf;
g_atomic_int_set (&aggpad->priv->flushing, TRUE);
/* Remove pad buffer and wake up the streaming thread */
tmpbuf = gst_aggregator_pad_steal_buffer (aggpad);
gst_buffer_replace (&tmpbuf, NULL);
if (g_atomic_int_compare_and_exchange (&padpriv->pending_flush_start,
TRUE, FALSE) == TRUE) {
GST_DEBUG_OBJECT (aggpad, "Expecting FLUSH_STOP now");
g_atomic_int_set (&padpriv->pending_flush_stop, TRUE);
}
if (g_atomic_int_get (&priv->flush_seeking)) {
/* If flush_seeking we forward the first FLUSH_START */
if (g_atomic_int_compare_and_exchange (&priv->pending_flush_start,
TRUE, FALSE) == TRUE) {
GST_DEBUG_OBJECT (self, "Flushing, pausing srcpad task");
_stop_srcpad_task (self, event);
priv->flow_return = GST_FLOW_OK;
GST_INFO_OBJECT (self, "Getting STREAM_LOCK while seeking");
GST_PAD_STREAM_LOCK (self->srcpad);
GST_LOG_OBJECT (self, "GOT STREAM_LOCK");
event = NULL;
goto eat;
}
}
/* We forward only in one case: right after flush_seeking */
goto eat;
}
case GST_EVENT_FLUSH_STOP:
{
GST_DEBUG_OBJECT (aggpad, "Got FLUSH_STOP");
_aggpad_flush (aggpad, self);
if (g_atomic_int_get (&priv->flush_seeking)) {
g_atomic_int_set (&aggpad->priv->pending_flush_stop, FALSE);
if (g_atomic_int_get (&priv->flush_seeking)) {
if (_all_flush_stop_received (self)) {
/* That means we received FLUSH_STOP/FLUSH_STOP on
* all sinkpads -- Seeking is Done... sending FLUSH_STOP */
_flush (self);
gst_pad_push_event (self->srcpad, event);
priv->send_eos = TRUE;
event = NULL;
_add_aggregate_gsource (self);
GST_INFO_OBJECT (self, "Releasing source pad STREAM_LOCK");
GST_PAD_STREAM_UNLOCK (self->srcpad);
_start_srcpad_task (self);
}
}
}
/* We never forward the event */
goto eat;
}
case GST_EVENT_EOS:
{
GST_DEBUG_OBJECT (aggpad, "EOS");
/* We still have a buffer, and we don't want the subclass to have to
* check for it. Mark pending_eos, eos will be set when steal_buffer is
* called
*/
PAD_LOCK_EVENT (aggpad);
if (!aggpad->buffer) {
aggpad->eos = TRUE;
} else {
aggpad->priv->pending_eos = TRUE;
}
PAD_UNLOCK_EVENT (aggpad);
_add_aggregate_gsource (self);
goto eat;
}
case GST_EVENT_SEGMENT:
{
PAD_LOCK_EVENT (aggpad);
gst_event_copy_segment (event, &aggpad->segment);
PAD_UNLOCK_EVENT (aggpad);
goto eat;
}
case GST_EVENT_STREAM_START:
{
goto eat;
}
case GST_EVENT_TAG:
{
GstTagList *tags;
gst_event_parse_tag (event, &tags);
if (gst_tag_list_get_scope (tags) == GST_TAG_SCOPE_STREAM) {
gst_aggregator_merge_tags (self, tags, GST_TAG_MERGE_REPLACE);
gst_event_unref (event);
event = NULL;
goto eat;
}
break;
}
default:
{
break;
}
}
GST_DEBUG_OBJECT (pad, "Forwarding event: %" GST_PTR_FORMAT, event);
return gst_pad_event_default (pad, GST_OBJECT (self), event);
eat:
GST_DEBUG_OBJECT (pad, "Eating event: %" GST_PTR_FORMAT, event);
if (event)
gst_event_unref (event);
return res;
}
/* GstAggregator vmethods default implementations */
static gboolean
_sink_event (GstAggregator * self, GstAggregatorPad * aggpad, GstEvent * event)
{
gboolean res = TRUE;
GstPad *pad = GST_PAD (aggpad);
GstAggregatorPrivate *priv = self->priv;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_FLUSH_START:
{
_flush_start (self, aggpad, event);
/* We forward only in one case: right after flush_seeking */
event = NULL;
goto eat;
}
case GST_EVENT_FLUSH_STOP:
{
GST_DEBUG_OBJECT (aggpad, "Got FLUSH_STOP");
_aggpad_flush (aggpad, self);
if (g_atomic_int_get (&priv->flush_seeking)) {
g_atomic_int_set (&aggpad->priv->pending_flush_stop, FALSE);
if (g_atomic_int_get (&priv->flush_seeking)) {
if (_all_flush_stop_received (self)) {
/* That means we received FLUSH_STOP/FLUSH_STOP on
* all sinkpads -- Seeking is Done... sending FLUSH_STOP */
_flush (self);
gst_pad_push_event (self->srcpad, event);
priv->send_eos = TRUE;
event = NULL;
QUEUE_PUSH (self);
GST_INFO_OBJECT (self, "Releasing source pad STREAM_LOCK");
GST_PAD_STREAM_UNLOCK (self->srcpad);
_start_srcpad_task (self);
}
}
}
/* We never forward the event */
goto eat;
}
case GST_EVENT_EOS:
{
GST_DEBUG_OBJECT (aggpad, "EOS");
/* We still have a buffer, and we don't want the subclass to have to
* check for it. Mark pending_eos, eos will be set when steal_buffer is
* called
*/
PAD_LOCK_EVENT (aggpad);
if (!aggpad->buffer) {
aggpad->eos = TRUE;
} else {
aggpad->priv->pending_eos = TRUE;
}
PAD_UNLOCK_EVENT (aggpad);
QUEUE_PUSH (self);
goto eat;
}
case GST_EVENT_SEGMENT:
{
PAD_LOCK_EVENT (aggpad);
gst_event_copy_segment (event, &aggpad->segment);
self->priv->seqnum = gst_event_get_seqnum (event);
PAD_UNLOCK_EVENT (aggpad);
goto eat;
}
case GST_EVENT_STREAM_START:
{
goto eat;
}
case GST_EVENT_TAG:
{
GstTagList *tags;
gst_event_parse_tag (event, &tags);
if (gst_tag_list_get_scope (tags) == GST_TAG_SCOPE_STREAM) {
gst_aggregator_merge_tags (self, tags, GST_TAG_MERGE_REPLACE);
gst_event_unref (event);
event = NULL;
goto eat;
}
break;
}
default:
{
break;
}
}
GST_DEBUG_OBJECT (pad, "Forwarding event: %" GST_PTR_FORMAT, event);
return gst_pad_event_default (pad, GST_OBJECT (self), event);
eat:
GST_DEBUG_OBJECT (pad, "Eating event: %" GST_PTR_FORMAT, event);
if (event)
gst_event_unref (event);
return res;
}
