static GstGhostPad *
_create_video_mixer_input (GstGLMixerBin * self, GstPad * mixer_pad)
{
GstGLVideoMixerInput *input =
g_object_new (gst_gl_video_mixer_input_get_type (), "name",
GST_OBJECT_NAME (mixer_pad), "direction", GST_PAD_DIRECTION (mixer_pad),
NULL);
GstControlBinding *cb;
if (!gst_ghost_pad_construct (GST_GHOST_PAD (input))) {
gst_object_unref (input);
return NULL;
}
#define ADD_PROXY_CONTROL_BINDING(prop) \
cb = gst_gl_mixer_control_binding_proxy_new (GST_OBJECT (mixer_pad), \
G_STRINGIFY (prop), GST_OBJECT (input), G_STRINGIFY (prop)); \
gst_object_add_control_binding (GST_OBJECT (mixer_pad), cb)
ADD_PROXY_CONTROL_BINDING (zorder);
ADD_PROXY_CONTROL_BINDING (xpos);
ADD_PROXY_CONTROL_BINDING (ypos);
ADD_PROXY_CONTROL_BINDING (width);
ADD_PROXY_CONTROL_BINDING (height);
ADD_PROXY_CONTROL_BINDING (alpha);
#undef ADD_PROXY_CONTROL_BINDING
input->mixer_pad = mixer_pad;
return GST_GHOST_PAD (input);
}
static gboolean
set_target (GstPad * gp, GstPad * target)
{
GstPad *old_target;
GstPad *peer;
old_target = gst_ghost_pad_get_target (GST_GHOST_PAD (gp));
if (old_target == NULL) {
goto end;
}
peer = gst_pad_get_peer (old_target);
if (peer != NULL) {
if (peer->direction == GST_PAD_SINK) {
gst_pad_unlink (old_target, peer);
} else {
gst_pad_unlink (peer, old_target);
}
g_object_unref (peer);
}
g_object_unref (old_target);
end:
return gst_ghost_pad_set_target (GST_GHOST_PAD (gp), target);
}
static GstGhostPad *
gst_switch_request_new_sink_pad (GstSwitch * swit,
GstPadTemplate * templ, const gchar * name, const GstCaps * caps)
{
GstElement *swcase = gst_switch_select (swit, templ, name, caps);
GstGhostPad *pad = NULL;
GstPad *basepad = NULL;
if (!swcase)
goto error_no_case;
basepad = gst_switch_get_case_sink_pad (swcase, caps);
if (!basepad)
goto error_no_basepad;
if (gst_pad_is_linked (basepad))
goto error_basepad_already_linked;
if (name) {
pad = GST_GHOST_PAD (gst_ghost_pad_new (name, basepad));
} else {
name = g_strdup_printf ("sink_%u", GST_ELEMENT (swit)->numsinkpads);
pad = GST_GHOST_PAD (gst_ghost_pad_new (name, basepad));
g_free ((gchar *) name);
}
gst_object_unref (basepad);
return pad;
error_no_case:
{
GST_ERROR_OBJECT (swit, "Failed to request new case for %s.%s",
GST_ELEMENT_NAME (swit), GST_PAD_TEMPLATE_NAME_TEMPLATE (templ));
return NULL;
}
error_no_basepad:
{
GST_ERROR_OBJECT (swit, "Failed to request new pad on %s",
GST_ELEMENT_NAME (swcase));
return NULL;
}
error_basepad_already_linked:
{
GstPad *pp = GST_PAD_PEER (basepad);
GstElement *ppp = GST_PAD_PARENT (pp);
GST_ERROR_OBJECT (swit, "Pad %s.%s already linked with %s.%s",
GST_ELEMENT_NAME (swcase), GST_PAD_NAME (basepad),
GST_ELEMENT_NAME (ppp), GST_PAD_NAME (pp));
gst_object_unref (basepad);
return NULL;
}
}
static void
gst_insert_bin_dispose (GObject * object)
{
GstInsertBin *self = GST_INSERT_BIN (object);
struct ChangeData *data;
while ((data = g_queue_pop_head (&self->priv->change_queue)))
gst_insert_bin_change_data_complete (self, data, FALSE);
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->srcpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD (self->priv->sinkpad), NULL);
G_OBJECT_CLASS (gst_insert_bin_parent_class)->dispose (object);
}
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;
gst_bin_add (GST_BIN (self), queue);
gst_element_sync_state_with_parent (queue);
if (!gst_caps_is_any (caps) && is_raw_caps (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");
remove_element_on_unlinked (rate, "src", "sink");
remove_element_on_unlinked (mediator, "src", "sink");
gst_bin_add_many (GST_BIN (self), convert, rate, mediator, NULL);
gst_element_sync_state_with_parent (mediator);
gst_element_sync_state_with_parent (convert);
gst_element_sync_state_with_parent (rate);
gst_element_link_many (queue, rate, convert, mediator, NULL);
target = gst_element_get_static_pad (mediator, "src");
} else {
target = gst_element_get_static_pad (queue, "src");
}
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), target);
g_object_unref (target);
link_element_to_tee (tee, queue);
}
static void
kms_element_release_pad (GstElement * element, GstPad * pad)
{
GstElement *agnosticbin;
GstPad *target;
if (g_str_has_prefix (GST_OBJECT_NAME (pad), "audio_src")) {
agnosticbin = KMS_ELEMENT (element)->priv->audio_agnosticbin;
} else if (g_str_has_prefix (GST_OBJECT_NAME (pad), "video_src")) {
agnosticbin = KMS_ELEMENT (element)->priv->video_agnosticbin;
} else {
return;
}
// TODO: Remove pad if is a sinkpad
target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target != NULL && agnosticbin != NULL)
gst_element_release_request_pad (agnosticbin, target);
if (GST_STATE (element) >= GST_STATE_PAUSED
|| GST_STATE_PENDING (element) >= GST_STATE_PAUSED)
gst_pad_set_active (pad, FALSE);
gst_element_remove_pad (element, pad);
}
static gboolean
gst_play_sink_convert_bin_sink_setcaps (GstPlaySinkConvertBin * self,
GstCaps * caps)
{
GstStructure *s;
const gchar *name;
gboolean reconfigure = FALSE;
gboolean raw;
GST_DEBUG_OBJECT (self, "setcaps");
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (self->audio) {
raw = g_str_equal (name, "audio/x-raw");
} else {
raw = g_str_equal (name, "video/x-raw");
}
GST_DEBUG_OBJECT (self, "raw %d, self->raw %d, blocked %d",
raw, self->raw, gst_pad_is_blocked (self->sink_proxypad));
if (raw) {
if (!gst_pad_is_blocked (self->sink_proxypad)) {
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (self->sinkpad));
if (!self->raw || (target && !gst_pad_query_accept_caps (target, caps))) {
if (!self->raw)
GST_DEBUG_OBJECT (self, "Changing caps from non-raw to raw");
else
GST_DEBUG_OBJECT (self, "Changing caps in an incompatible way");
reconfigure = TRUE;
block_proxypad (self);
}
if (target)
gst_object_unref (target);
}
} else {
if (self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from raw to non-raw");
reconfigure = TRUE;
block_proxypad (self);
}
}
/* Otherwise the setcaps below fails */
if (reconfigure) {
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
}
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
GST_DEBUG_OBJECT (self, "Setting sink caps %" GST_PTR_FORMAT, caps);
return TRUE;
}
/*
* gst_camerabin_image_link_first_element:
* @img: a pointer to #GstCameraBinImage object
* @elem: first element to be linked on imagebin
*
* Adds given element to imagebin and links it to imagebin's ghost sink pad.
*
* Returns: %TRUE if adding and linking succeeded, %FALSE otherwise
*/
static gboolean
gst_camerabin_image_link_first_element (GstCameraBinImage * imagebin,
GstElement * elem)
{
GstPad *first_sinkpad = NULL;
gboolean ret = FALSE;
g_return_val_if_fail (imagebin != NULL, FALSE);
/* Link given element to imagebin ghost sink pad */
if (gst_bin_add (GST_BIN (imagebin), elem)) {
first_sinkpad = gst_element_get_static_pad (elem, "sink");
if (first_sinkpad) {
if (gst_ghost_pad_set_target (GST_GHOST_PAD (imagebin->sinkpad),
first_sinkpad)) {
ret = TRUE;
} else {
GST_WARNING ("linking first element failed");
}
gst_object_unref (first_sinkpad);
} else {
GST_WARNING ("no sink pad in first element");
}
} else {
GST_WARNING ("adding element failed");
}
return ret;
}
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 gboolean gst_a2dp_sink_init_ghost_pad(GstA2dpSink *self)
{
GstPad *capsfilter_pad;
/* we search for the capsfilter sinkpad */
capsfilter_pad = gst_element_get_static_pad(self->capsfilter, "sink");
/* now we add a ghostpad */
self->ghostpad = GST_GHOST_PAD(gst_ghost_pad_new("sink",
capsfilter_pad));
g_object_unref(capsfilter_pad);
/* the getcaps of our ghostpad must reflect the device caps */
gst_pad_set_getcaps_function(GST_PAD(self->ghostpad),
gst_a2dp_sink_get_caps);
self->ghostpad_setcapsfunc = GST_PAD_SETCAPSFUNC(self->ghostpad);
gst_pad_set_setcaps_function(GST_PAD(self->ghostpad),
GST_DEBUG_FUNCPTR(gst_a2dp_sink_set_caps));
/* we need to handle events on our own and we also need the eventfunc
* of the ghostpad for forwarding calls */
self->ghostpad_eventfunc = GST_PAD_EVENTFUNC(GST_PAD(self->ghostpad));
gst_pad_set_event_function(GST_PAD(self->ghostpad),
gst_a2dp_sink_handle_event);
if (!gst_element_add_pad(GST_ELEMENT(self), GST_PAD(self->ghostpad)))
GST_ERROR_OBJECT(self, "failed to add ghostpad");
return TRUE;
}
static gboolean
gst_auto_video_sink_detect (GstAutoVideoSink * sink)
{
GstElement *esink;
GstPad *targetpad;
gst_auto_video_sink_clear_kid (sink);
/* find element */
GST_DEBUG_OBJECT (sink, "Creating new kid");
if (!(esink = gst_auto_video_sink_find_best (sink)))
goto no_sink;
sink->kid = esink;
gst_bin_add (GST_BIN (sink), esink);
/* attach ghost pad */
GST_DEBUG_OBJECT (sink, "Re-assigning ghostpad");
targetpad = gst_element_get_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
GST_DEBUG_OBJECT (sink, "done changing auto video sink");
return TRUE;
/* ERRORS */
no_sink:
{
GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
("Failed to find a supported video sink"));
return FALSE;
}
}
void
kms_element_remove_sink (KmsElement * self, GstPad * pad)
{
GSList *l;
g_return_if_fail (self);
g_return_if_fail (pad);
KMS_ELEMENT_LOCK (self);
l = g_slist_find_custom (self->priv->stats.probes, pad,
(GCompareFunc) find_stat_probe);
if (l != NULL) {
KmsStatsProbe *probe = l->data;
self->priv->stats.probes = g_slist_remove (self->priv->stats.probes,
l->data);
kms_stats_probe_destroy (probe);
}
KMS_ELEMENT_UNLOCK (self);
// TODO: Unlink correctly pad before removing it
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
gst_element_remove_pad (GST_ELEMENT (self), pad);
}
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 gboolean
gst_gconf_video_sink_reset (GstGConfVideoSink * sink)
{
GstPad *targetpad;
/* fakesink */
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
}
sink->kid = gst_element_factory_make ("fakesink", "testsink");
if (!sink->kid) {
GST_ERROR_OBJECT (sink, "Failed to create fakesink");
return FALSE;
}
gst_bin_add (GST_BIN (sink), sink->kid);
targetpad = gst_element_get_static_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
g_free (sink->gconf_str);
sink->gconf_str = NULL;
return TRUE;
}
static gboolean
do_toggle_element (GstHalAudioSink * sink)
{
GstPad *targetpad;
/* kill old element */
if (sink->kid) {
GST_DEBUG_OBJECT (sink, "Removing old kid");
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
sink->kid = NULL;
}
GST_DEBUG_OBJECT (sink, "Creating new kid");
if (!sink->udi)
GST_INFO_OBJECT (sink, "No UDI set for device, using default one");
if (!(sink->kid = gst_hal_get_audio_sink (sink->udi))) {
GST_ELEMENT_ERROR (sink, LIBRARY, SETTINGS, (NULL),
("Failed to render audio sink from Hal"));
return FALSE;
}
gst_element_set_state (sink->kid, GST_STATE (sink));
gst_bin_add (GST_BIN (sink), sink->kid);
/* re-attach ghostpad */
GST_DEBUG_OBJECT (sink, "Creating new ghostpad");
targetpad = gst_element_get_static_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
GST_DEBUG_OBJECT (sink, "done changing hal audio sink");
return TRUE;
}
static void
debug_dump_element_pad (GstPad * pad, GstElement * element,
GstDebugGraphDetails details, FILE * out, const gint indent)
{
GstElement *target_element;
GstPad *target_pad, *tmp_pad;
GstPadDirection dir;
gchar *element_name;
gchar *target_element_name;
const gchar *color_name;
dir = gst_pad_get_direction (pad);
element_name = debug_dump_make_object_name (GST_OBJECT (element));
if (GST_IS_GHOST_PAD (pad)) {
color_name =
(dir == GST_PAD_SRC) ? "#ffdddd" : ((dir ==
GST_PAD_SINK) ? "#ddddff" : "#ffffff");
/* output target-pad so that it belongs to this element */
if ((tmp_pad = gst_ghost_pad_get_target (GST_GHOST_PAD (pad)))) {
if ((target_pad = gst_pad_get_peer (tmp_pad))) {
gchar *pad_name, *target_pad_name;
const gchar *spc = &spaces[MAX (sizeof (spaces) - (1 + indent * 2), 0)];
if ((target_element = gst_pad_get_parent_element (target_pad))) {
target_element_name =
debug_dump_make_object_name (GST_OBJECT (target_element));
} else {
target_element_name = g_strdup ("");
}
debug_dump_pad (target_pad, color_name, target_element_name, details,
out, indent);
/* src ghostpad relationship */
pad_name = debug_dump_make_object_name (GST_OBJECT (pad));
target_pad_name = debug_dump_make_object_name (GST_OBJECT (target_pad));
if (dir == GST_PAD_SRC) {
fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
target_element_name, target_pad_name, element_name, pad_name);
} else {
fprintf (out, "%s%s_%s -> %s_%s [style=dashed, minlen=0]\n", spc,
element_name, pad_name, target_element_name, target_pad_name);
}
g_free (target_pad_name);
g_free (target_element_name);
if (target_element)
gst_object_unref (target_element);
gst_object_unref (target_pad);
g_free (pad_name);
}
gst_object_unref (tmp_pad);
}
} else {
color_name =
(dir == GST_PAD_SRC) ? "#ffaaaa" : ((dir ==
GST_PAD_SINK) ? "#aaaaff" : "#cccccc");
}
/* pads */
debug_dump_pad (pad, color_name, element_name, details, out, indent);
g_free (element_name);
}
static gboolean
do_toggle_element (GstGConfVideoSrc * src)
{
GstPad *targetpad;
gchar *new_gconf_str;
GstState cur, next;
new_gconf_str = gst_gconf_get_string (GST_GCONF_AUDIOSRC_KEY);
if (new_gconf_str != NULL && src->gconf_str != NULL &&
(strlen (new_gconf_str) == 0 ||
strcmp (src->gconf_str, new_gconf_str) == 0)) {
g_free (new_gconf_str);
GST_DEBUG_OBJECT (src, "GConf key was updated, but it didn't change");
return TRUE;
}
GST_OBJECT_LOCK (src);
cur = GST_STATE (src);
next = GST_STATE_PENDING (src);
GST_OBJECT_UNLOCK (src);
if (cur >= GST_STATE_READY || next == GST_STATE_PAUSED) {
GST_DEBUG_OBJECT (src, "already running, ignoring GConf change");
g_free (new_gconf_str);
return TRUE;
}
g_free (src->gconf_str);
src->gconf_str = new_gconf_str;
/* kill old element */
if (src->kid) {
GST_DEBUG_OBJECT (src, "Removing old kid");
gst_element_set_state (src->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (src), src->kid);
src->kid = NULL;
}
GST_DEBUG_OBJECT (src, "Creating new kid");
if (!(src->kid = gst_gconf_get_default_video_src ())) {
GST_ELEMENT_ERROR (src, LIBRARY, SETTINGS, (NULL),
("Failed to render video source from GConf"));
g_free (src->gconf_str);
src->gconf_str = NULL;
return FALSE;
}
gst_element_set_state (src->kid, GST_STATE (src));
gst_bin_add (GST_BIN (src), src->kid);
/* re-attach ghostpad */
GST_DEBUG_OBJECT (src, "Creating new ghostpad");
targetpad = gst_element_get_static_pad (src->kid, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad);
gst_object_unref (targetpad);
GST_DEBUG_OBJECT (src, "done changing gconf video source");
return TRUE;
}
static gboolean
_create_input_chain (GstGLMixerBin * self, struct input_chain *chain,
GstPad * mixer_pad)
{
GstGLMixerBinClass *klass = GST_GL_MIXER_BIN_GET_CLASS (self);
GstPad *pad;
gboolean res = TRUE;
gchar *name;
chain->self = self;
chain->mixer_pad = mixer_pad;
chain->upload = gst_element_factory_make ("glupload", NULL);
chain->in_convert = gst_element_factory_make ("glcolorconvert", NULL);
res &= gst_bin_add (GST_BIN (self), chain->in_convert);
res &= gst_bin_add (GST_BIN (self), chain->upload);
pad = gst_element_get_static_pad (chain->in_convert, "src");
if (gst_pad_link (pad, mixer_pad) != GST_PAD_LINK_OK) {
gst_object_unref (pad);
return FALSE;
}
gst_object_unref (pad);
res &=
gst_element_link_pads (chain->upload, "src", chain->in_convert, "sink");
pad = gst_element_get_static_pad (chain->upload, "sink");
if (!pad) {
return FALSE;
} else {
GST_DEBUG_OBJECT (self, "setting target sink pad %" GST_PTR_FORMAT, pad);
name = gst_object_get_name (GST_OBJECT (mixer_pad));
if (klass->create_input_pad) {
chain->ghost_pad = klass->create_input_pad (self, chain->mixer_pad);
gst_object_set_name (GST_OBJECT (chain->ghost_pad), name);
gst_ghost_pad_set_target (chain->ghost_pad, pad);
} else {
chain->ghost_pad =
GST_GHOST_PAD (gst_ghost_pad_new (GST_PAD_NAME (chain->mixer_pad),
pad));
}
g_free (name);
GST_OBJECT_LOCK (self);
if (self->priv->running)
gst_pad_set_active (GST_PAD (chain->ghost_pad), TRUE);
GST_OBJECT_UNLOCK (self);
gst_element_add_pad (GST_ELEMENT_CAST (self), GST_PAD (chain->ghost_pad));
gst_object_unref (pad);
}
gst_element_sync_state_with_parent (chain->upload);
gst_element_sync_state_with_parent (chain->in_convert);
return TRUE;
}
/*
* gst_camerabin_image_destroy_elements:
* @img: a pointer to #GstCameraBinImage object
*
* This function releases resources allocated in
* gst_camerabin_image_create_elements.
*
*/
static void
gst_camerabin_image_destroy_elements (GstCameraBinImage * img)
{
GST_LOG ("destroying image elements");
gst_ghost_pad_set_target (GST_GHOST_PAD (img->sinkpad), NULL);
gst_camerabin_remove_elements_from_bin (GST_BIN (img));
}
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
remove_target_pad (GstPad * pad)
{
// TODO: Remove target pad is just like a disconnection it should be done
// with care, possibly blocking the pad, or at least disconnecting directly
// from the tee
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
GST_DEBUG_OBJECT (pad, "Removing target pad");
if (target == NULL) {
return;
}
gst_pad_add_probe (target, GST_PAD_PROBE_TYPE_DATA_DOWNSTREAM,
remove_target_pad_block, NULL, NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
g_object_unref (target);
}
/**
* Process a pad for connecting or disconnecting, it should be always called
* whint the agnostic lock hold.
*
* @self: The #KmsAgnosticBin2 owner of the pad
* @pad: The pad to be processed
*/
static gboolean
kms_agnostic_bin2_process_pad (KmsAgnosticBin2 * self, GstPad * pad)
{
GstPad *peer = NULL;
if (!GST_OBJECT_FLAG_IS_SET (pad, KMS_AGNOSTIC_PAD_STARTED)) {
return FALSE;
}
if (!self->priv->started) {
return FALSE;
}
GST_DEBUG_OBJECT (self, "Processing pad: %" GST_PTR_FORMAT, pad);
if (pad == NULL) {
return FALSE;
}
peer = gst_pad_get_peer (pad);
if (peer != NULL) {
GstPad *target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target) {
GstCaps *caps = gst_pad_get_current_caps (pad);
if (caps != NULL) {
gboolean accepted;
accepted = gst_pad_query_accept_caps (peer, caps);
gst_caps_unref (caps);
if (accepted) {
GST_DEBUG_OBJECT (self, "No need to reconfigure pad %" GST_PTR_FORMAT,
pad);
g_object_unref (target);
g_object_unref (peer);
return FALSE;
}
remove_target_pad (pad);
}
g_object_unref (target);
}
kms_agnostic_bin2_link_pad (self, pad, peer);
}
return TRUE;
}
static void
kms_element_remove_target_pad (KmsElement * self, GstPad * pad)
{
GstElement *agnosticbin;
GstPad *target;
target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target == NULL) {
return;
}
agnosticbin = gst_pad_get_parent_element (target);
if (agnosticbin == NULL) {
GST_WARNING_OBJECT (self, "No agnosticbin owns %" GST_PTR_FORMAT, pad);
} else {
gst_element_release_request_pad (agnosticbin, target);
g_object_unref (agnosticbin);
}
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
g_object_unref (target);
}
static void
kms_element_remove_target_on_unlinked (GstPad * pad, GstPad * peer,
GstElement * element)
{
GstPad *target;
target = gst_ghost_pad_get_target (GST_GHOST_PAD (pad));
if (target == NULL) {
GST_DEBUG_OBJECT (pad, "No target pad");
return;
}
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL)) {
GST_ERROR_OBJECT (pad, "Can not remove target pad");
}
GST_DEBUG_OBJECT (element, "Removing requested pad %" GST_PTR_FORMAT, target);
gst_element_release_request_pad (element, target);
g_object_unref (target);
}
static void
fps_display_sink_start (GstFPSDisplaySink * self)
{
GstPad *target_pad = NULL;
/* Init counters */
self->next_ts = GST_CLOCK_TIME_NONE;
self->last_ts = GST_CLOCK_TIME_NONE;
self->frames_rendered = G_GUINT64_CONSTANT (0);
self->frames_dropped = G_GUINT64_CONSTANT (0);
GST_DEBUG_OBJECT (self, "Use text-overlay? %d", self->use_text_overlay);
if (self->use_text_overlay) {
if (!self->text_overlay) {
self->text_overlay =
gst_element_factory_make ("textoverlay", "fps-display-text-overlay");
if (!self->text_overlay) {
GST_WARNING_OBJECT (self, "text-overlay element could not be created");
self->use_text_overlay = FALSE;
goto no_text_overlay;
}
gst_object_ref (self->text_overlay);
g_object_set (self->text_overlay,
"font-desc", DEFAULT_FONT, "silent", FALSE, NULL);
gst_bin_add (GST_BIN (self), self->text_overlay);
if (!gst_element_link (self->text_overlay, self->video_sink)) {
GST_ERROR_OBJECT (self, "Could not link elements");
}
}
target_pad = gst_element_get_static_pad (self->text_overlay, "video_sink");
}
no_text_overlay:
if (!self->use_text_overlay) {
if (self->text_overlay) {
gst_element_unlink (self->text_overlay, self->video_sink);
gst_bin_remove (GST_BIN (self), self->text_overlay);
self->text_overlay = NULL;
}
target_pad = gst_element_get_static_pad (self->video_sink, "sink");
}
gst_ghost_pad_set_target (GST_GHOST_PAD (self->ghost_pad), target_pad);
gst_object_unref (target_pad);
/* Set a timeout for the fps display */
self->timeout_id =
g_timeout_add (FPS_DISPLAY_INTERVAL_MS,
display_current_fps, (gpointer) self);
}
static gboolean
gst_auto_audio_sink_detect (GstAutoAudioSink * sink)
{
GstElement *esink;
GstPad *targetpad;
gst_auto_audio_sink_clear_kid (sink);
/* find element */
GST_DEBUG_OBJECT (sink, "Creating new kid");
if (!(esink = gst_auto_audio_sink_find_best (sink)))
goto no_sink;
g_object_set (G_OBJECT (esink), "ts-offset", sink->ts_offset, NULL);
sink->kid = esink;
/* Ensure the child is brought up to the right state to match the parent
* although it's currently always in READY and
* we're always doing NULL->READY. */
if (GST_STATE (sink->kid) < GST_STATE (sink))
gst_element_set_state (sink->kid, GST_STATE (sink));
gst_bin_add (GST_BIN (sink), esink);
/* attach ghost pad */
GST_DEBUG_OBJECT (sink, "Re-assigning ghostpad");
targetpad = gst_element_get_static_pad (sink->kid, "sink");
if (!gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad))
goto target_failed;
gst_object_unref (targetpad);
GST_DEBUG_OBJECT (sink, "done changing auto audio sink");
return TRUE;
/* ERRORS */
no_sink:
{
GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
("Failed to find a supported audio sink"));
return FALSE;
}
target_failed:
{
GST_ELEMENT_ERROR (sink, LIBRARY, INIT, (NULL),
("Failed to set target pad"));
gst_object_unref (targetpad);
return FALSE;
}
}
static void
dvb_base_bin_release_pad (GstElement * element, GstPad * pad)
{
GstGhostPad *ghost;
GstPad *target;
g_return_if_fail (GST_IS_DVB_BASE_BIN (element));
ghost = GST_GHOST_PAD (pad);
target = gst_ghost_pad_get_target (ghost);
gst_element_release_request_pad (GST_ELEMENT (GST_DVB_BASE_BIN (element)->
mpegtsparse), target);
gst_object_unref (target);
gst_element_remove_pad (element, pad);
}
/*
* Hack to make initial linking work; ideally, this'd work even when
* no target has been assigned to the ghostpad yet.
*/
static void
gst_auto_audio_src_reset (GstAutoAudioSrc * src)
{
GstPad *targetpad;
gst_auto_audio_src_clear_kid (src);
/* fakesink placeholder */
src->kid = gst_element_factory_make ("fakesrc", "tempsrc");
gst_bin_add (GST_BIN (src), src->kid);
/* pad */
targetpad = gst_element_get_static_pad (src->kid, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD (src->pad), targetpad);
gst_object_unref (targetpad);
}
static void
gst_auto_video_sink_reset (GstAutoVideoSink * sink)
{
GstPad *targetpad;
/* Remove any existing element */
gst_auto_video_sink_clear_kid (sink);
/* fakesink placeholder */
sink->kid = gst_element_factory_make ("fakesink", "tempsink");
gst_bin_add (GST_BIN (sink), sink->kid);
/* pad */
targetpad = gst_element_get_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
}
static void
gst_hal_audio_sink_reset (GstHalAudioSink * sink)
{
GstPad *targetpad;
/* fakesink */
if (sink->kid) {
gst_element_set_state (sink->kid, GST_STATE_NULL);
gst_bin_remove (GST_BIN (sink), sink->kid);
}
sink->kid = gst_element_factory_make ("fakesink", "testsink");
gst_bin_add (GST_BIN (sink), sink->kid);
targetpad = gst_element_get_static_pad (sink->kid, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD (sink->pad), targetpad);
gst_object_unref (targetpad);
}
