static gboolean
gst_auto_video_convert_add_autoconvert (GstAutoVideoConvert * autovideoconvert)
{
GstPad *pad;
if (autovideoconvert->autoconvert)
return TRUE;
autovideoconvert->autoconvert =
gst_element_factory_make ("autoconvert", "autoconvertchild");
if (!autovideoconvert->autoconvert) {
GST_ERROR_OBJECT (autovideoconvert,
"Could not create autoconvert instance");
return FALSE;
}
/* first add autoconvert in bin */
gst_bin_add (GST_BIN (autovideoconvert),
gst_object_ref (autovideoconvert->autoconvert));
/* get sinkpad and link it to ghost sink pad */
pad = gst_element_get_static_pad (autovideoconvert->autoconvert, "sink");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (autovideoconvert->sinkpad),
pad);
gst_object_unref (pad);
/* get srcpad and link it to ghost src pad */
pad = gst_element_get_static_pad (autovideoconvert->autoconvert, "src");
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (autovideoconvert->srcpad), pad);
gst_object_unref (pad);
return TRUE;
}
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;
}
static GstPadProbeReturn
pad_blocked_cb (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstPlaySinkConvertBin *self = user_data;
GstPad *peer;
GstCaps *caps;
gboolean raw;
if (GST_IS_EVENT (info->data) && !GST_EVENT_IS_SERIALIZED (info->data)) {
GST_DEBUG_OBJECT (self, "Letting non-serialized event %s pass",
GST_EVENT_TYPE_NAME (info->data));
return GST_PAD_PROBE_PASS;
}
GST_PLAY_SINK_CONVERT_BIN_LOCK (self);
GST_DEBUG_OBJECT (self, "Pad blocked");
/* There must be a peer at this point */
peer = gst_pad_get_peer (self->sinkpad);
caps = gst_pad_get_current_caps (peer);
if (!caps)
caps = gst_pad_query_caps (peer, NULL);
gst_object_unref (peer);
raw = is_raw_caps (caps, self->audio);
GST_DEBUG_OBJECT (self, "Caps %" GST_PTR_FORMAT " are raw: %d", caps, raw);
gst_caps_unref (caps);
if (raw == self->raw)
goto unblock;
self->raw = raw;
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), NULL);
if (raw) {
GST_DEBUG_OBJECT (self, "Switching to raw conversion pipeline");
if (self->conversion_elements)
g_list_foreach (self->conversion_elements,
(GFunc) gst_play_sink_convert_bin_on_element_added, self);
} else {
GST_DEBUG_OBJECT (self, "Switch to passthrough pipeline");
gst_play_sink_convert_bin_on_element_added (self->identity, self);
}
gst_play_sink_convert_bin_set_targets (self, !raw);
unblock:
self->sink_proxypad_block_id = 0;
GST_PLAY_SINK_CONVERT_BIN_UNLOCK (self);
return GST_PAD_PROBE_REMOVE;
}
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 gboolean
gst_play_sink_video_convert_sink_setcaps (GstPad * pad, GstCaps * caps)
{
GstPlaySinkVideoConvert *self =
GST_PLAY_SINK_VIDEO_CONVERT (gst_pad_get_parent (pad));
gboolean ret;
GstStructure *s;
const gchar *name;
gboolean reconfigure = FALSE;
GST_PLAY_SINK_VIDEO_CONVERT_LOCK (self);
s = gst_caps_get_structure (caps, 0);
name = gst_structure_get_name (s);
if (g_str_has_prefix (name, "video/x-raw-")) {
if (!self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from non-raw to raw");
reconfigure = TRUE;
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
}
} else {
if (self->raw && !gst_pad_is_blocked (self->sink_proxypad)) {
GST_DEBUG_OBJECT (self, "Changing caps from raw to non-raw");
reconfigure = TRUE;
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
}
}
/* 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_VIDEO_CONVERT_UNLOCK (self);
ret = gst_ghost_pad_setcaps_default (pad, caps);
GST_DEBUG_OBJECT (self, "Setting sink caps %" GST_PTR_FORMAT ": %d", caps,
ret);
gst_object_unref (self);
return ret;
}
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;
}
}
GstPad *
gst_ghost_pad_new_from_template (const gchar * name, GstPad * target,
GstPadTemplate * templ)
{
GstPad *ret;
g_return_val_if_fail (GST_IS_PAD (target), NULL);
g_return_val_if_fail (!gst_pad_is_linked (target), NULL);
g_return_val_if_fail (templ != NULL, NULL);
g_return_val_if_fail (GST_PAD_TEMPLATE_DIRECTION (templ) ==
GST_PAD_DIRECTION (target), NULL);
GST_LOG ("name:%s, target:%s:%s, templ:%p", GST_STR_NULL (name),
GST_DEBUG_PAD_NAME (target), templ);
if ((ret = gst_ghost_pad_new_full (name, GST_PAD_DIRECTION (target), templ)))
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ret), target))
goto set_target_failed;
return ret;
/* ERRORS */
set_target_failed:
{
GST_WARNING_OBJECT (ret, "failed to set target %s:%s",
GST_DEBUG_PAD_NAME (target));
gst_object_unref (ret);
return NULL;
}
}
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 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
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);
}
EXPORT_C
#endif
GstPad *
gst_ghost_pad_new (const gchar * name, GstPad * target)
{
GstPad *ret;
g_return_val_if_fail (GST_IS_PAD (target), NULL);
g_return_val_if_fail (!gst_pad_is_linked (target), NULL);
GST_LOG ("name:%s, target:%s:%s", GST_STR_NULL (name),
GST_DEBUG_PAD_NAME (target));
if ((ret = gst_ghost_pad_new_no_target (name, GST_PAD_DIRECTION (target))))
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (ret), target))
goto set_target_failed;
return ret;
/* ERRORS */
set_target_failed:
{
GST_WARNING_OBJECT (ret, "failed to set target %s:%s",
GST_DEBUG_PAD_NAME (target));
gst_object_unref (ret);
return NULL;
}
}
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);
}
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
gst_auto_video_convert_remove_autoconvert (GstAutoVideoConvert *
autovideoconvert)
{
if (!autovideoconvert->autoconvert)
return;
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (autovideoconvert->srcpad),
NULL);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (autovideoconvert->sinkpad),
NULL);
gst_bin_remove (GST_BIN (autovideoconvert), autovideoconvert->autoconvert);
gst_object_unref (autovideoconvert->autoconvert);
autovideoconvert->autoconvert = NULL;
}
/*
* 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 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 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;
}
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);
}
/*
* 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 GstStateChangeReturn
gst_play_sink_video_convert_change_state (GstElement * element,
GstStateChange transition)
{
GstStateChangeReturn ret;
GstPlaySinkVideoConvert *self = GST_PLAY_SINK_VIDEO_CONVERT_CAST (element);
switch (transition) {
case GST_STATE_CHANGE_PAUSED_TO_READY:
GST_PLAY_SINK_VIDEO_CONVERT_LOCK (self);
if (gst_pad_is_blocked (self->sink_proxypad))
gst_pad_set_blocked_async_full (self->sink_proxypad, FALSE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
GST_PLAY_SINK_VIDEO_CONVERT_UNLOCK (self);
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_PLAY_SINK_VIDEO_CONVERT_LOCK (self);
gst_segment_init (&self->segment, GST_FORMAT_UNDEFINED);
if (self->conv) {
gst_element_set_state (self->conv, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (self), self->conv);
self->conv = NULL;
}
if (self->scale) {
gst_element_set_state (self->scale, GST_STATE_NULL);
gst_bin_remove (GST_BIN_CAST (self), self->scale);
self->scale = NULL;
}
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad),
self->sink_proxypad);
self->raw = FALSE;
GST_PLAY_SINK_VIDEO_CONVERT_UNLOCK (self);
break;
case GST_STATE_CHANGE_READY_TO_PAUSED:
GST_PLAY_SINK_VIDEO_CONVERT_LOCK (self);
if (!gst_pad_is_blocked (self->sink_proxypad))
gst_pad_set_blocked_async_full (self->sink_proxypad, TRUE,
(GstPadBlockCallback) pad_blocked_cb, gst_object_ref (self),
(GDestroyNotify) gst_object_unref);
GST_PLAY_SINK_VIDEO_CONVERT_UNLOCK (self);
default:
break;
}
return ret;
}
static gboolean
rsn_dec_set_child (RsnDec * self, GstElement * new_child)
{
GstPad *child_pad;
if (self->current_decoder) {
gst_ghost_pad_set_target (self->srcpad, NULL);
gst_ghost_pad_set_target (self->sinkpad, NULL);
gst_bin_remove ((GstBin *) self, self->current_decoder);
self->current_decoder = NULL;
}
if (new_child == NULL)
return TRUE;
if (!gst_bin_add ((GstBin *) self, new_child))
return FALSE;
child_pad = gst_element_get_static_pad (new_child, "sink");
if (child_pad == NULL) {
return FALSE;
}
gst_ghost_pad_set_target (self->sinkpad, child_pad);
gst_object_unref (child_pad);
child_pad = gst_element_get_static_pad (new_child, "src");
if (child_pad == NULL) {
return FALSE;
}
gst_ghost_pad_set_target (self->srcpad, child_pad);
gst_object_unref (child_pad);
GST_DEBUG_OBJECT (self, "Add child %" GST_PTR_FORMAT, new_child);
self->current_decoder = new_child;
gst_element_sync_state_with_parent (new_child);
return TRUE;
}
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
gst_play_sink_convert_bin_set_targets (GstPlaySinkConvertBin * self,
gboolean passthrough)
{
GstPad *pad;
GstElement *head, *tail;
GST_DEBUG_OBJECT (self, "Setting pad targets with passthrough %d",
passthrough);
if (self->conversion_elements == NULL || passthrough) {
GST_DEBUG_OBJECT (self, "no conversion elements, using identity (%p) as "
"head/tail", self->identity);
if (!passthrough) {
GST_WARNING_OBJECT (self,
"Doing passthrough as no converter elements were added");
}
head = tail = self->identity;
} else {
head = GST_ELEMENT (g_list_first (self->conversion_elements)->data);
tail = GST_ELEMENT (g_list_last (self->conversion_elements)->data);
GST_DEBUG_OBJECT (self, "conversion elements in use, picking "
"head:%s and tail:%s", GST_OBJECT_NAME (head), GST_OBJECT_NAME (tail));
}
g_return_if_fail (head != NULL);
g_return_if_fail (tail != NULL);
pad = gst_element_get_static_pad (head, "sink");
GST_DEBUG_OBJECT (self, "Ghosting bin sink pad to %" GST_PTR_FORMAT, pad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->sinkpad), pad);
gst_object_unref (pad);
pad = gst_element_get_static_pad (tail, "src");
GST_DEBUG_OBJECT (self, "Ghosting bin src pad to %" GST_PTR_FORMAT, pad);
gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), pad);
gst_object_unref (pad);
}
static gboolean
make_encodebin (GstTranscodeBin * self)
{
GstPad *pad;
GST_INFO_OBJECT (self, "making new encodebin");
if (!self->profile)
goto no_profile;
self->encodebin = gst_element_factory_make ("encodebin", NULL);
if (!self->encodebin)
goto no_decodebin;
g_object_set (self->encodebin, "profile", self->profile, NULL);
gst_bin_add (GST_BIN (self), self->encodebin);
pad = gst_element_get_static_pad (self->encodebin, "src");
if (!gst_ghost_pad_set_target (GST_GHOST_PAD_CAST (self->srcpad), pad)) {
gst_object_unref (pad);
GST_ERROR_OBJECT (self, "Could not ghost %" GST_PTR_FORMAT " srcpad",
self->encodebin);
return FALSE;
}
gst_object_unref (pad);
return gst_element_sync_state_with_parent (self->encodebin);
/* ERRORS */
no_decodebin:
{
post_missing_plugin_error (GST_ELEMENT_CAST (self), "encodebin");
GST_ELEMENT_ERROR (self, CORE, MISSING_PLUGIN, (NULL),
("No encodebin element, check your installation"));
return FALSE;
}
/* ERRORS */
no_profile:
{
GST_ELEMENT_ERROR (self, CORE, MISSING_PLUGIN, (NULL),
("No GstEncodingProfile set, can not run."));
return FALSE;
}
}
/*
* 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);
}
