static gboolean
gst_decklink_audio_sink_ringbuffer_start (GstAudioRingBuffer * rb)
{
GstDecklinkAudioSinkRingBuffer *self =
GST_DECKLINK_AUDIO_SINK_RING_BUFFER_CAST (rb);
GstElement *videosink = NULL;
gboolean ret = TRUE;
// Check if there is a video sink for this output too and if it
// is actually in the same pipeline
g_mutex_lock (&self->output->lock);
if (self->output->videosink)
videosink = GST_ELEMENT_CAST (gst_object_ref (self->output->videosink));
g_mutex_unlock (&self->output->lock);
if (!videosink) {
GST_ELEMENT_ERROR (self->sink, STREAM, FAILED,
(NULL), ("Audio sink needs a video sink for its operation"));
ret = FALSE;
}
// FIXME: This causes deadlocks sometimes
#if 0
else if (!in_same_pipeline (GST_ELEMENT_CAST (self->sink), videosink)) {
GST_ELEMENT_ERROR (self->sink, STREAM, FAILED,
(NULL), ("Audio sink and video sink need to be in the same pipeline"));
ret = FALSE;
}
#endif
if (videosink)
gst_object_unref (videosink);
return ret;
}
static GstStateChangeReturn
gst_decklink_audio_src_change_state (GstElement * element,
GstStateChange transition)
{
GstDecklinkAudioSrc *self = GST_DECKLINK_AUDIO_SRC_CAST (element);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
if (!gst_decklink_audio_src_open (self)) {
ret = GST_STATE_CHANGE_FAILURE;
goto out;
}
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:{
GstElement *videosrc = NULL;
// Check if there is a video src for this input too and if it
// is actually in the same pipeline
g_mutex_lock (&self->input->lock);
if (self->input->videosrc)
videosrc = GST_ELEMENT_CAST (gst_object_ref (self->input->videosrc));
g_mutex_unlock (&self->input->lock);
if (!videosrc) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
(NULL), ("Audio src needs a video src for its operation"));
ret = GST_STATE_CHANGE_FAILURE;
goto out;
}
// FIXME: This causes deadlocks sometimes
#if 0
else if (!in_same_pipeline (GST_ELEMENT_CAST (self), videosrc)) {
GST_ELEMENT_ERROR (self, STREAM, FAILED,
(NULL),
("Audio src and video src need to be in the same pipeline"));
ret = GST_STATE_CHANGE_FAILURE;
gst_object_unref (videosrc);
goto out;
}
#endif
if (videosrc)
gst_object_unref (videosrc);
self->flushing = FALSE;
self->next_offset = -1;
break;
}
default:
break;
}
ret = GST_ELEMENT_CLASS (parent_class)->change_state (element, transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
gst_decklink_audio_src_stop (self);
break;
case GST_STATE_CHANGE_READY_TO_NULL:
gst_decklink_audio_src_close (self);
break;
default:
break;
}
out:
return ret;
}
