static GstPad *
_get_peer_pad (GstPad * pad)
{
GstPad *peer = gst_pad_get_peer (pad);
if (!peer)
return NULL;
while (GST_IS_PROXY_PAD (peer)) {
GstPad *next_pad;
if (GST_IS_GHOST_PAD (peer)) {
next_pad = gst_pad_get_peer (peer);
if (next_pad == pad)
next_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (peer));
} else {
next_pad = GST_PAD (gst_proxy_pad_get_internal (GST_PROXY_PAD (peer)));
}
if (!next_pad)
return NULL;
gst_object_unref (peer);
peer = next_pad;
}
return peer;
}
static void
kms_audio_mixer_remove_sometimes_src_pad (KmsAudioMixer * self,
GstElement * adder)
{
GstProxyPad *internal;
GstPad *srcpad, *peer;
srcpad = gst_element_get_static_pad (adder, "src");
peer = gst_pad_get_peer (srcpad);
if (peer == NULL)
goto end_phase_1;
internal = gst_proxy_pad_get_internal ((GstProxyPad *) peer);
if (internal == NULL)
goto end_phase_2;
gst_ghost_pad_set_target (GST_GHOST_PAD (internal), NULL);
if (GST_STATE (self) < GST_STATE_PAUSED
|| GST_STATE_PENDING (self) < GST_STATE_PAUSED
|| GST_STATE_TARGET (self) < GST_STATE_PAUSED) {
gst_pad_set_active (GST_PAD (internal), FALSE);
}
GST_DEBUG ("Removing source pad %" GST_PTR_FORMAT, internal);
gst_element_remove_pad (GST_ELEMENT (self), GST_PAD (internal));
gst_object_unref (internal);
end_phase_2:
gst_object_unref (peer);
end_phase_1:
gst_object_unref (srcpad);
}
static void
gst_play_sink_video_convert_init (GstPlaySinkVideoConvert * self)
{
GstPadTemplate *templ;
self->lock = g_mutex_new ();
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
templ = gst_static_pad_template_get (&sinktemplate);
self->sinkpad = gst_ghost_pad_new_no_target_from_template ("sink", templ);
gst_pad_set_event_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_convert_sink_event));
gst_pad_set_setcaps_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_convert_sink_setcaps));
gst_pad_set_getcaps_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_convert_getcaps));
self->sink_proxypad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (self->sinkpad)));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
gst_object_unref (templ);
templ = gst_static_pad_template_get (&srctemplate);
self->srcpad = gst_ghost_pad_new_no_target_from_template ("src", templ);
gst_pad_set_getcaps_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_play_sink_video_convert_getcaps));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->srcpad);
gst_object_unref (templ);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
}
static void
gst_play_sink_convert_bin_init (GstPlaySinkConvertBin * self)
{
GstPadTemplate *templ;
g_mutex_init (&self->lock);
templ = gst_static_pad_template_get (&sinktemplate);
self->sinkpad = gst_ghost_pad_new_no_target_from_template ("sink", templ);
gst_pad_set_event_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_convert_bin_sink_event));
gst_pad_set_query_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_convert_bin_query));
self->sink_proxypad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (self->sinkpad)));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
gst_object_unref (templ);
templ = gst_static_pad_template_get (&srctemplate);
self->srcpad = gst_ghost_pad_new_no_target_from_template ("src", templ);
gst_pad_set_query_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_play_sink_convert_bin_query));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->srcpad);
gst_object_unref (templ);
gst_play_sink_convert_bin_add_identity (self);
}
void
kms_tree_bin_unlink_input_element_from_tee (KmsTreeBin * self)
{
GstPad *queue_sink, *peer, *tee_src;
GstElement *tee;
queue_sink = gst_element_get_static_pad (self->priv->input_element, "sink");
peer = gst_pad_get_peer (queue_sink);
if (GST_IS_PROXY_PAD (peer)) {
GstProxyPad *ghost;
ghost = gst_proxy_pad_get_internal (GST_PROXY_PAD (peer));
tee_src = gst_pad_get_peer (GST_PAD (ghost));
g_object_unref (peer);
g_object_unref (ghost);
} else {
tee_src = peer;
}
gst_pad_unlink (tee_src, queue_sink);
tee = gst_pad_get_parent_element (tee_src);
if (tee != NULL) {
gst_element_release_request_pad (tee, tee_src);
g_object_unref (tee);
}
g_object_unref (tee_src);
g_object_unref (queue_sink);
}
static void
kms_agnostic_bin2_link_to_tee (KmsAgnosticBin2 * self, GstPad * pad,
GstElement * tee, GstCaps * caps)
{
GstElement *queue = gst_element_factory_make ("queue", NULL);
GstPad *target;
GstProxyPad *proxy;
gst_bin_add (GST_BIN (self), queue);
gst_element_sync_state_with_parent (queue);
if (!(gst_caps_is_any (caps) || gst_caps_is_empty (caps))
&& kms_utils_caps_are_raw (caps)) {
GstElement *convert = kms_utils_create_convert_for_caps (caps);
GstElement *rate = kms_utils_create_rate_for_caps (caps);
GstElement *mediator = kms_utils_create_mediator_element (caps);
remove_element_on_unlinked (convert, "src", "sink");
if (rate) {
remove_element_on_unlinked (rate, "src", "sink");
}
remove_element_on_unlinked (mediator, "src", "sink");
if (rate) {
gst_bin_add (GST_BIN (self), rate);
}
gst_bin_add_many (GST_BIN (self), convert, mediator, NULL);
gst_element_sync_state_with_parent (mediator);
gst_element_sync_state_with_parent (convert);
if (rate) {
gst_element_sync_state_with_parent (rate);
}
if (rate) {
gst_element_link_many (queue, rate, mediator, NULL);
} else {
gst_element_link (queue, mediator);
}
gst_element_link_many (mediator, convert, NULL);
target = gst_element_get_static_pad (convert, "src");
} else {
target = gst_element_get_static_pad (queue, "src");
}
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), target);
proxy = gst_proxy_pad_get_internal (GST_PROXY_PAD (pad));
gst_pad_set_query_function (GST_PAD_CAST (proxy),
proxy_src_pad_query_function);
g_object_unref (proxy);
g_object_unref (target);
link_element_to_tee (tee, queue);
}
static void
gst_play_sink_audio_convert_init (GstPlaySinkAudioConvert * self)
{
GstPadTemplate *templ;
self->lock = g_mutex_new ();
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
templ = gst_static_pad_template_get (&sinktemplate);
self->sinkpad = gst_ghost_pad_new_no_target_from_template ("sink", templ);
gst_pad_set_event_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_sink_event));
gst_pad_set_setcaps_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_sink_setcaps));
gst_pad_set_getcaps_function (self->sinkpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_getcaps));
self->sink_proxypad =
GST_PAD_CAST (gst_proxy_pad_get_internal (GST_PROXY_PAD (self->sinkpad)));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->sinkpad);
gst_object_unref (templ);
templ = gst_static_pad_template_get (&srctemplate);
self->srcpad = gst_ghost_pad_new_no_target_from_template ("src", templ);
gst_pad_set_getcaps_function (self->srcpad,
GST_DEBUG_FUNCPTR (gst_play_sink_audio_convert_getcaps));
gst_element_add_pad (GST_ELEMENT_CAST (self), self->srcpad);
gst_object_unref (templ);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
/* FIXME: Only create this on demand but for now we need
* it to always exist because of playsink's volume proxying
* logic.
*/
self->volume = gst_element_factory_make ("volume", "volume");
if (self->volume)
gst_object_ref_sink (self->volume);
}
static void
gst_insert_bin_init (GstInsertBin * self)
{
GstProxyPad *internal;
self->priv = G_TYPE_INSTANCE_GET_PRIVATE (self, GST_TYPE_INSERT_BIN,
GstInsertBinPrivate);
g_queue_init (&self->priv->change_queue);
self->priv->sinkpad = gst_ghost_pad_new_no_target_from_template ("sink",
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (self),
"sink"));
gst_element_add_pad (GST_ELEMENT (self), self->priv->sinkpad);
internal = gst_proxy_pad_get_internal (GST_PROXY_PAD (self->priv->sinkpad));
self->priv->srcpad = gst_ghost_pad_new_from_template ("src",
GST_PAD (internal),
gst_element_class_get_pad_template (GST_ELEMENT_GET_CLASS (self), "src"));
gst_object_unref (internal);
gst_element_add_pad (GST_ELEMENT (self), self->priv->srcpad);
}
static gboolean
proxy_src_pad_query_function (GstPad * pad, GstObject * parent,
GstQuery * query)
{
gboolean ret = gst_pad_query_default (pad, parent, query);
if (!ret) {
return ret;
}
if (GST_QUERY_TYPE (query) == GST_QUERY_ACCEPT_CAPS) {
gboolean accepted;
gst_query_parse_accept_caps_result (query, &accepted);
if (!accepted) {
GstProxyPad *gp = gst_proxy_pad_get_internal (GST_PROXY_PAD (pad));
KmsAgnosticBin2 *self = NULL;
GST_ERROR_OBJECT (pad, "Caps not accepted: %" GST_PTR_FORMAT, query);
if (gp) {
self = KMS_AGNOSTIC_BIN2 (GST_OBJECT_PARENT (gp));
}
if (self) {
KMS_AGNOSTIC_BIN2_LOCK (self);
remove_target_pad (GST_PAD_CAST (gp));
kms_agnostic_bin2_process_pad (self, GST_PAD_CAST (gp));
KMS_AGNOSTIC_BIN2_UNLOCK (self);
}
g_object_unref (gp);
}
}
return ret;
}
static void
gst_insert_bin_block_pad_unlock (GstInsertBin * self)
{
struct ChangeData *data;
GstPad *pad;
GstPadProbeType probetype;
again:
data = g_queue_peek_head (&self->priv->change_queue);
if (!data) {
GST_OBJECT_UNLOCK (self);
return;
}
if (data->action == GST_INSERT_BIN_ACTION_ADD &&
!validate_element (self, data->element))
goto error;
if (data->action == GST_INSERT_BIN_ACTION_ADD) {
if (data->sibling) {
if (data->direction == DIRECTION_BEFORE)
pad = get_single_pad (data->sibling, GST_PAD_SINK);
else
pad = get_single_pad (data->sibling, GST_PAD_SRC);
} else {
if (data->direction == DIRECTION_BEFORE)
pad = (GstPad *)
gst_proxy_pad_get_internal (GST_PROXY_PAD (self->priv->srcpad));
else
pad = (GstPad *)
gst_proxy_pad_get_internal (GST_PROXY_PAD (self->priv->sinkpad));
}
if (!pad) {
GST_WARNING_OBJECT (self, "Can not obtain a sibling pad to block"
" before adding");
goto error;
}
if (!is_right_direction_for_block (pad)) {
GstPad *peer = gst_pad_get_peer (pad);
if (peer) {
gst_object_unref (pad);
pad = peer;
}
}
} else {
GstPad *element_pad;
element_pad = get_single_pad (data->element, GST_PAD_SINK);
if (!element_pad) {
GST_WARNING_OBJECT (self, "Can not obtain the element's sink pad");
goto error;
}
if (!is_right_direction_for_block (element_pad)) {
pad = gst_pad_get_peer (element_pad);
} else {
gst_object_unref (element_pad);
element_pad = get_single_pad (data->element, GST_PAD_SRC);
if (!element_pad) {
GST_WARNING_OBJECT (self, "Can not obtain the element's src pad");
goto error;
}
pad = gst_pad_get_peer (element_pad);
}
gst_object_unref (element_pad);
if (!pad) {
GST_WARNING_OBJECT (self, "Can not obtain a sibling pad for removing");
goto error;
}
}
if (GST_PAD_IS_SRC (pad))
probetype = GST_PAD_PROBE_TYPE_BLOCK_DOWNSTREAM;
else
probetype = GST_PAD_PROBE_TYPE_BLOCK_UPSTREAM;
GST_OBJECT_UNLOCK (self);
gst_pad_add_probe (pad, GST_PAD_PROBE_TYPE_IDLE | probetype, pad_blocked_cb,
self, NULL);
gst_object_unref (pad);
return;
error:
g_queue_pop_head (&self->priv->change_queue);
gst_insert_bin_change_data_complete (self, data, FALSE);
goto again;
}
