static gboolean
gst_frei0r_mixer_src_query (GstPad * pad, GstObject * object, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
ret = gst_pad_query (self->sink0, query);
break;
case GST_QUERY_DURATION:
ret = gst_frei0r_mixer_src_query_duration (self, query);
break;
case GST_QUERY_LATENCY:
ret = gst_frei0r_mixer_src_query_latency (self, query);
break;
case GST_QUERY_CAPS:
{
GstCaps *filter, *caps;
gst_query_parse_caps (query, &filter);
caps = gst_frei0r_mixer_get_caps (self, pad, filter);
gst_query_set_caps_result (query, caps);
gst_caps_unref (caps);
break;
}
default:
ret = gst_pad_query_default (pad, GST_OBJECT (self), query);
break;
}
return ret;
}
static gboolean
gst_frei0r_mixer_sink0_event (GstPad * pad, GstEvent * event)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
GstEvent **p_ev;
GST_DEBUG ("Got %s event on pad %s:%s", GST_EVENT_TYPE_NAME (event),
GST_DEBUG_PAD_NAME (pad));
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_NEWSEGMENT:
p_ev = &self->newseg_event;
gst_event_replace (p_ev, event);
break;
default:
break;
}
/* now GstCollectPads can take care of the rest, e.g. EOS */
ret = self->collect_event (pad, event);
gst_object_unref (self);
return ret;
}
static gboolean
gst_frei0r_mixer_src_query (GstPad * pad, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_POSITION:
ret = gst_pad_query (self->sink0, query);
break;
case GST_QUERY_DURATION:
ret = gst_frei0r_mixer_src_query_duration (self, query);
break;
case GST_QUERY_LATENCY:
ret = gst_frei0r_mixer_src_query_latency (self, query);
break;
default:
ret = gst_pad_query_default (pad, query);
break;
}
gst_object_unref (self);
return ret;
}
static gboolean
gst_frei0r_mixer_set_caps (GstPad * pad, GstCaps * caps)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = TRUE;
gst_caps_replace (&self->caps, caps);
if (pad != self->src)
ret &= gst_pad_set_caps (self->src, caps);
if (pad != self->sink0)
ret &= gst_pad_set_caps (self->sink0, caps);
if (pad != self->sink1)
ret &= gst_pad_set_caps (self->sink1, caps);
if (pad != self->sink2 && self->sink2)
ret &= gst_pad_set_caps (self->sink2, caps);
if (ret) {
if (!gst_video_format_parse_caps (caps, &self->fmt, &self->width,
&self->height)) {
ret = FALSE;
goto out;
}
}
out:
gst_object_unref (self);
return ret;
}
static gboolean
gst_frei0r_mixer_sink_query (GstPad * pad, GstQuery * query)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = gst_pad_query (self->src, query);
gst_object_unref (self);
return ret;
}
static GstCaps *
gst_frei0r_mixer_get_caps (GstPad * pad)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
GstCaps *caps = NULL;
if (self->caps) {
caps = gst_caps_ref (self->caps);
} else {
GstCaps *tmp, *tmp1;
tmp = gst_caps_copy (gst_pad_get_pad_template_caps (self->src));
tmp1 = gst_pad_peer_get_caps (pad);
if (tmp1) {
caps = gst_caps_intersect (tmp, tmp1);
gst_caps_unref (tmp1);
gst_caps_unref (tmp);
} else {
caps = tmp;
}
tmp = caps;
tmp1 = gst_pad_peer_get_caps (self->sink0);
if (tmp1) {
caps = gst_caps_intersect (tmp, tmp1);
gst_caps_unref (tmp);
gst_caps_unref (tmp1);
}
tmp = caps;
tmp1 = gst_pad_peer_get_caps (self->sink1);
if (tmp1) {
caps = gst_caps_intersect (tmp, tmp1);
gst_caps_unref (tmp);
gst_caps_unref (tmp1);
}
if (self->sink2) {
tmp = caps;
tmp1 = gst_pad_peer_get_caps (self->sink2);
if (tmp1) {
caps = gst_caps_intersect (tmp, tmp1);
gst_caps_unref (tmp);
gst_caps_unref (tmp1);
}
}
}
gst_object_unref (self);
return caps;
}
static void
gst_frei0r_mixer_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (object);
GST_OBJECT_LOCK (self);
if (!gst_frei0r_set_property (self->f0r_instance, klass->ftable,
klass->properties, klass->n_properties, self->property_cache, prop_id,
value))
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
GST_OBJECT_UNLOCK (self);
}
static void
gst_frei0r_mixer_finalize (GObject * object)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (object);
if (self->property_cache)
gst_frei0r_property_cache_free (klass->properties, self->property_cache,
klass->n_properties);
self->property_cache = NULL;
if (self->collect)
gst_object_unref (self->collect);
self->collect = NULL;
G_OBJECT_CLASS (g_type_class_peek_parent (klass))->finalize (object);
}
static gboolean
gst_frei0r_mixer_src_event (GstPad * pad, GstEvent * event)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (gst_pad_get_parent (pad));
gboolean ret = FALSE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_QOS:
/* QoS might be tricky */
ret = FALSE;
break;
case GST_EVENT_SEEK:
{
GstSeekFlags flags;
/* parse the seek parameters */
gst_event_parse_seek (event, NULL, NULL, &flags, NULL, NULL, NULL, NULL);
/* check if we are flushing */
if (flags & GST_SEEK_FLAG_FLUSH) {
/* make sure we accept nothing anymore and return WRONG_STATE */
gst_collect_pads_set_flushing (self->collect, TRUE);
/* flushing seek, start flush downstream, the flush will be done
* when all pads received a FLUSH_STOP. */
gst_pad_push_event (self->src, gst_event_new_flush_start ());
}
ret = forward_event (self, event);
break;
}
case GST_EVENT_NAVIGATION:
/* navigation is rather pointless. */
ret = FALSE;
break;
default:
/* just forward the rest for now */
ret = forward_event (self, event);
break;
}
gst_object_unref (self);
return ret;
}
static GstStateChangeReturn
gst_frei0r_mixer_change_state (GstElement * element, GstStateChange transition)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (element);
GstFrei0rMixerClass *klass = GST_FREI0R_MIXER_GET_CLASS (self);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
gst_collect_pads_start (self->collect);
break;
case GST_STATE_CHANGE_PAUSED_TO_PLAYING:
break;
default:
break;
}
/* Stop before calling the parent's state change function as
* GstCollectPads might take locks and we would deadlock in that
* case
*/
if (transition == GST_STATE_CHANGE_PAUSED_TO_READY)
gst_collect_pads_stop (self->collect);
ret =
GST_ELEMENT_CLASS (g_type_class_peek_parent (klass))->change_state
(element, transition);
switch (transition) {
case GST_STATE_CHANGE_PLAYING_TO_PAUSED:
break;
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_frei0r_mixer_reset (self);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
break;
default:
break;
}
return ret;
}
static gboolean
gst_frei0r_mixer_src_event (GstPad * pad, GstObject * object, GstEvent * event)
{
GstFrei0rMixer *self = GST_FREI0R_MIXER (object);
gboolean ret = FALSE;
switch (GST_EVENT_TYPE (event)) {
case GST_EVENT_QOS:
/* QoS might be tricky */
ret = FALSE;
break;
case GST_EVENT_SEEK:
{
GstSeekFlags flags;
/* parse the seek parameters */
gst_event_parse_seek (event, NULL, NULL, &flags, NULL, NULL, NULL, NULL);
/* check if we are flushing */
if (flags & GST_SEEK_FLAG_FLUSH) {
/* make sure we accept nothing anymore and return WRONG_STATE */
gst_collect_pads_set_flushing (self->collect, TRUE);
/* flushing seek, start flush downstream, the flush will be done
* when all pads received a FLUSH_STOP. */
gst_pad_push_event (self->src, gst_event_new_flush_start ());
}
ret = gst_pad_event_default (pad, GST_OBJECT (self), event);
break;
}
default:
ret = gst_pad_event_default (pad, GST_OBJECT (self), event);
break;
}
return ret;
}