static void
gst_gl_mixer_bin_release_pad (GstElement * element, GstPad * pad)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (element);
GList *l = self->priv->input_chains;
gboolean released = FALSE;
GST_OBJECT_LOCK (element);
while (l) {
struct input_chain *chain = l->data;
if (GST_PAD (chain->ghost_pad) == pad) {
self->priv->input_chains =
g_list_delete_link (self->priv->input_chains, l);
GST_OBJECT_UNLOCK (element);
_free_input_chain (chain);
gst_element_remove_pad (element, pad);
released = TRUE;
break;
}
l = l->next;
}
if (!released)
GST_OBJECT_UNLOCK (element);
}
static GObject *
gst_gl_mixer_bin_child_proxy_get_child_by_index (GstChildProxy * child_proxy,
guint index)
{
GstGLMixerBin *mixer = GST_GL_MIXER_BIN (child_proxy);
GstBin *bin = GST_BIN_CAST (child_proxy);
GObject *res = NULL;
GST_OBJECT_LOCK (bin);
/* XXX: not exactly thread safe with ordering */
if (index < bin->numchildren) {
if ((res = g_list_nth_data (bin->children, index)))
gst_object_ref (res);
} else {
struct input_chain *chain;
if ((chain =
g_list_nth_data (mixer->priv->input_chains,
index - bin->numchildren))) {
res = gst_object_ref (chain->ghost_pad);
}
}
GST_OBJECT_UNLOCK (bin);
return res;
}
static GstPad *
gst_gl_mixer_bin_request_new_pad (GstElement * element, GstPadTemplate * templ,
const gchar * req_name, const GstCaps * caps)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (element);
GstPadTemplate *mixer_templ;
struct input_chain *chain;
GstPad *mixer_pad;
chain = g_new0 (struct input_chain, 1);
mixer_templ = _find_element_pad_template (self->mixer,
GST_PAD_TEMPLATE_DIRECTION (templ), GST_PAD_TEMPLATE_PRESENCE (templ));
g_return_val_if_fail (mixer_templ, NULL);
mixer_pad =
gst_element_request_pad (self->mixer, mixer_templ, req_name, NULL);
g_return_val_if_fail (mixer_pad, NULL);
if (!_create_input_chain (self, chain, mixer_pad)) {
gst_element_release_request_pad (self->mixer, mixer_pad);
_free_input_chain (chain);
return NULL;
}
GST_OBJECT_LOCK (element);
self->priv->input_chains = g_list_prepend (self->priv->input_chains, chain);
GST_OBJECT_UNLOCK (element);
gst_child_proxy_child_added (GST_CHILD_PROXY (self),
G_OBJECT (chain->ghost_pad), GST_OBJECT_NAME (chain->ghost_pad));
return GST_PAD (chain->ghost_pad);
}
static void
gst_gl_video_mixer_bin_init (GstGLVideoMixerBin * self)
{
GstGLMixerBin *mix_bin = GST_GL_MIXER_BIN (self);
gst_gl_mixer_bin_finish_init_with_element (mix_bin,
g_object_new (GST_TYPE_GL_VIDEO_MIXER, NULL));
}
static void
gst_gl_video_mixer_bin_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (object);
if (self->mixer)
g_object_set_property (G_OBJECT (self->mixer), pspec->name, value);
}
static GstStateChangeReturn
gst_gl_mixer_bin_change_state (GstElement * element, GstStateChange transition)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (element);
GstGLMixerBinClass *klass = GST_GL_MIXER_BIN_GET_CLASS (self);
GstStateChangeReturn ret;
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
GST_OBJECT_LOCK (element);
if (!self->mixer) {
if (klass->create_element)
self->mixer = klass->create_element ();
if (!self->mixer) {
g_signal_emit (element,
gst_gl_mixer_bin_signals[SIGNAL_CREATE_ELEMENT], 0, &self->mixer);
if (self->mixer && g_object_is_floating (self->mixer))
gst_object_ref_sink (self->mixer);
}
if (!self->mixer) {
GST_ERROR_OBJECT (element, "Failed to retrieve element");
GST_OBJECT_UNLOCK (element);
return GST_STATE_CHANGE_FAILURE;
}
GST_OBJECT_UNLOCK (element);
if (!_connect_mixer_element (self))
return GST_STATE_CHANGE_FAILURE;
GST_OBJECT_LOCK (element);
}
self->priv->running = TRUE;
GST_OBJECT_UNLOCK (element);
break;
default:
break;
}
ret =
GST_ELEMENT_CLASS (gst_gl_mixer_bin_parent_class)->change_state (element,
transition);
if (ret == GST_STATE_CHANGE_FAILURE)
return ret;
switch (transition) {
case GST_STATE_CHANGE_READY_TO_NULL:
GST_OBJECT_LOCK (self);
self->priv->running = FALSE;
GST_OBJECT_UNLOCK (self);
default:
break;
}
return ret;
}
static void
gst_gl_mixer_bin_finalize (GObject * object)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (object);
if (self->mixer)
gst_object_unref (self->mixer);
G_OBJECT_CLASS (gst_gl_mixer_bin_parent_class)->finalize (object);
}
static guint
gst_gl_mixer_bin_child_proxy_get_children_count (GstChildProxy * child_proxy)
{
GstGLMixerBin *mixer = GST_GL_MIXER_BIN (child_proxy);
GstBin *bin = GST_BIN_CAST (child_proxy);
guint num;
GST_OBJECT_LOCK (bin);
num = bin->numchildren + g_list_length (mixer->priv->input_chains);
GST_OBJECT_UNLOCK (bin);
return num;
}
static void
gst_gl_mixer_bin_get_property (GObject * object,
guint prop_id, GValue * value, GParamSpec * pspec)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (object);
switch (prop_id) {
case PROP_MIXER:
g_value_set_object (value, self->mixer);
break;
default:
if (self->mixer)
g_object_get_property (G_OBJECT (self->mixer), pspec->name, value);
break;
}
}
static void
gst_gl_mixer_bin_release_pad (GstElement * element, GstPad * pad)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (element);
GList *l = self->priv->input_chains;
GST_OBJECT_LOCK (element);
while (l) {
struct input_chain *chain = l->data;
if (chain->mixer_pad == pad) {
_free_input_chain (chain);
self->priv->input_chains =
g_list_remove_link (self->priv->input_chains, l);
break;
}
l = l->next;
}
GST_OBJECT_UNLOCK (element);
gst_element_remove_pad (element, pad);
}
static void
gst_gl_mixer_bin_set_property (GObject * object,
guint prop_id, const GValue * value, GParamSpec * pspec)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (object);
switch (prop_id) {
case PROP_MIXER:
{
GstElement *mixer = g_value_get_object (value);
/* FIXME: deal with replacing a mixer */
g_return_if_fail (!self->mixer || (self->mixer == mixer));
gst_gl_mixer_bin_set_mixer (self, mixer);
break;
}
default:
if (self->mixer)
g_object_set_property (G_OBJECT (self->mixer), pspec->name, value);
break;
}
}
static void
gst_gl_mixer_bin_dispose (GObject * object)
{
GstGLMixerBin *self = GST_GL_MIXER_BIN (object);
GList *l = self->priv->input_chains;
while (l) {
struct input_chain *chain = l->data;
if (self->mixer && chain->mixer_pad) {
gst_element_release_request_pad (GST_ELEMENT (self->mixer),
chain->mixer_pad);
gst_object_unref (chain->mixer_pad);
chain->mixer_pad = NULL;
}
l = l->next;
}
g_list_free_full (self->priv->input_chains, (GDestroyNotify) g_free);
G_OBJECT_CLASS (gst_gl_mixer_bin_parent_class)->dispose (object);
}
