static HRESULT WINAPI Gstreamer_transform_Cleanup(TransformFilter *tf, PIN_DIRECTION dir)
{
GstTfImpl *This = (GstTfImpl*)tf;
TRACE("%p 0x%x\n", This, dir);
mark_wine_thread();
if (dir == PINDIR_INPUT)
{
if (This->filter) {
gst_element_set_state(This->filter, GST_STATE_NULL);
gst_object_unref(This->filter);
}
This->filter = NULL;
if (This->my_src) {
gst_pad_unlink(This->my_src, This->their_sink);
gst_object_unref(This->my_src);
gst_object_unref(This->their_sink);
}
if (This->my_sink) {
gst_pad_unlink(This->their_src, This->my_sink);
gst_object_unref(This->my_sink);
gst_object_unref(This->their_src);
}
This->my_sink = This->my_src = This->their_sink = This->their_src = NULL;
}
return S_OK;
}
/* Clean up output/input pad and respective selector request pad */
static void
cleanup_pad (GstPad * pad, GstElement * element)
{
GstPad *selpad = NULL;
guint probe_id = 0;
fail_if (pad == NULL, "pad doesn't exist");
/* remove probe if necessary */
probe_id = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (pad), "probe_id"));
if (probe_id)
gst_pad_remove_probe (pad, probe_id);
/* unlink */
selpad = gst_pad_get_peer (pad);
if (GST_PAD_DIRECTION (selpad) == GST_PAD_SRC) {
gst_pad_unlink (selpad, pad);
} else {
gst_pad_unlink (pad, selpad);
}
GST_DEBUG_OBJECT (pad, "clean up %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
selpad, pad);
/* cleanup the pad */
gst_pad_set_active (pad, FALSE);
ASSERT_OBJECT_REFCOUNT (pad, "pad", 1);
gst_object_unref (pad);
/* cleanup selector pad, reffed by this function (_get_peer) and creator */
gst_element_release_request_pad (element, selpad);
gst_object_unref (selpad);
}
/**
* gst_ghost_pad_set_target:
* @gpad: the #GstGhostPad
* @newtarget: (transfer none) (allow-none): the new pad target
*
* Set the new target of the ghostpad @gpad. Any existing target
* is unlinked and links to the new target are established. if @newtarget is
* %NULL the target will be cleared.
*
* Returns: (transfer full): %TRUE if the new target could be set. This function
* can return %FALSE when the internal pads could not be linked.
*/
gboolean
gst_ghost_pad_set_target (GstGhostPad * gpad, GstPad * newtarget)
{
GstPad *internal;
GstPad *oldtarget;
GstPadLinkReturn lret;
g_return_val_if_fail (GST_IS_GHOST_PAD (gpad), FALSE);
g_return_val_if_fail (GST_PAD_CAST (gpad) != newtarget, FALSE);
g_return_val_if_fail (newtarget != GST_PROXY_PAD_INTERNAL (gpad), FALSE);
GST_OBJECT_LOCK (gpad);
internal = GST_PROXY_PAD_INTERNAL (gpad);
if (newtarget)
GST_DEBUG_OBJECT (gpad, "set target %s:%s", GST_DEBUG_PAD_NAME (newtarget));
else
GST_DEBUG_OBJECT (gpad, "clearing target");
/* clear old target */
if ((oldtarget = gst_pad_get_peer (internal))) {
GST_OBJECT_UNLOCK (gpad);
/* unlink internal pad */
if (GST_PAD_IS_SRC (internal))
gst_pad_unlink (internal, oldtarget);
else
gst_pad_unlink (oldtarget, internal);
gst_object_unref (oldtarget);
} else {
GST_OBJECT_UNLOCK (gpad);
}
if (newtarget) {
/* and link to internal pad without any checks */
GST_DEBUG_OBJECT (gpad, "connecting internal pad to target %"
GST_PTR_FORMAT, newtarget);
if (GST_PAD_IS_SRC (internal))
lret =
gst_pad_link_full (internal, newtarget, GST_PAD_LINK_CHECK_NOTHING);
else
lret =
gst_pad_link_full (newtarget, internal, GST_PAD_LINK_CHECK_NOTHING);
if (lret != GST_PAD_LINK_OK)
goto link_failed;
}
return TRUE;
/* ERRORS */
link_failed:
{
GST_WARNING_OBJECT (gpad, "could not link internal and target, reason:%s",
gst_pad_link_get_name (lret));
return FALSE;
}
}
static GstElement *
remove_smpte_from_bin (GESTrackVideoTransitionPrivate * priv, GstPad * sink)
{
GstPad *smpte_src, *peer_src, *smpte_sink;
GstElement *smpte, *peer;
smpte_src = gst_pad_get_peer (sink);
smpte = gst_pad_get_parent_element (smpte_src);
if (smpte == NULL) {
gst_object_unref (smpte_src);
GST_ERROR ("The pad %" GST_PTR_FORMAT " has no parent element. "
"This should not happen", smpte_src);
return (NULL);
}
smpte_sink = gst_element_get_static_pad (smpte, "sink");
peer_src = gst_pad_get_peer (smpte_sink);
peer = gst_pad_get_parent_element (peer_src);
gst_pad_unlink (peer_src, smpte_sink);
gst_pad_unlink (smpte_src, sink);
gst_element_set_state (smpte, GST_STATE_NULL);
gst_bin_remove (GST_BIN (priv->topbin), smpte);
gst_object_unref (smpte);
gst_object_unref (smpte_sink);
gst_object_unref (smpte_src);
gst_object_unref (peer_src);
return (peer);
}
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);
}
EXPORT_C
#endif
gboolean
gst_ghost_pad_set_target (GstGhostPad * gpad, GstPad * newtarget)
{
GstPad *internal;
GstPad *oldtarget;
gboolean result;
GstPadLinkReturn lret;
g_return_val_if_fail (GST_IS_GHOST_PAD (gpad), FALSE);
GST_PROXY_LOCK (gpad);
internal = GST_PROXY_PAD_INTERNAL (gpad);
GST_DEBUG_OBJECT (gpad, "set target %s:%s", GST_DEBUG_PAD_NAME (newtarget));
/* clear old target */
if ((oldtarget = GST_PROXY_PAD_TARGET (gpad))) {
/* if we have an internal pad, unlink */
if (internal) {
if (GST_PAD_IS_SRC (internal))
gst_pad_unlink (internal, oldtarget);
else
gst_pad_unlink (oldtarget, internal);
}
}
result = gst_proxy_pad_set_target_unlocked (GST_PAD_CAST (gpad), newtarget);
if (result && newtarget) {
/* and link to internal pad */
GST_DEBUG_OBJECT (gpad, "connecting internal pad to target");
if (GST_PAD_IS_SRC (internal))
lret = gst_pad_link (internal, newtarget);
else
lret = gst_pad_link (newtarget, internal);
if (lret != GST_PAD_LINK_OK)
goto link_failed;
}
GST_PROXY_UNLOCK (gpad);
return result;
/* ERRORS */
link_failed:
{
GST_WARNING_OBJECT (gpad, "could not link internal and target, reason:%d",
lret);
/* and unset target again */
gst_proxy_pad_set_target_unlocked (GST_PAD_CAST (gpad), NULL);
GST_PROXY_UNLOCK (gpad);
return FALSE;
}
}
static void
pad_removed_cb (GstElement * timeline, GstPad * pad, GESPipeline * self)
{
OutputChain *chain;
GESTrack *track;
GstPad *peer;
GST_DEBUG_OBJECT (self, "pad removed %s:%s", GST_DEBUG_PAD_NAME (pad));
if (G_UNLIKELY (!(track =
ges_timeline_get_track_for_pad (self->priv->timeline, pad)))) {
GST_WARNING_OBJECT (self, "Couldn't find coresponding track !");
return;
}
if (G_UNLIKELY (!(chain = get_output_chain_for_track (self, track)))) {
GST_DEBUG_OBJECT (self, "Pad wasn't used");
return;
}
/* Unlink encodebin */
if (chain->encodebinpad) {
peer = gst_pad_get_peer (chain->encodebinpad);
gst_pad_unlink (peer, chain->encodebinpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->encodebin,
chain->encodebinpad);
}
/* Unlink playsink */
if (chain->playsinkpad) {
peer = gst_pad_get_peer (chain->playsinkpad);
gst_pad_unlink (peer, chain->playsinkpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->playsink, chain->playsinkpad);
gst_object_unref (chain->playsinkpad);
}
if (chain->blocked_pad) {
GST_DEBUG_OBJECT (chain->blocked_pad, "unblocking pad");
gst_pad_remove_probe (chain->blocked_pad, chain->probe_id);
gst_object_unref (chain->blocked_pad);
chain->blocked_pad = NULL;
chain->probe_id = 0;
}
/* Unlike/remove tee */
peer = gst_element_get_static_pad (chain->tee, "sink");
gst_pad_unlink (pad, peer);
gst_object_unref (peer);
gst_element_set_state (chain->tee, GST_STATE_NULL);
gst_bin_remove (GST_BIN (self), chain->tee);
self->priv->chains = g_list_remove (self->priv->chains, chain);
g_free (chain);
GST_DEBUG ("done");
}
void GstUtils::unlink_pad(GstPad *pad) {
GstPad *peer;
if ((peer = gst_pad_get_peer(pad))) {
if (gst_pad_get_direction(pad) == GST_PAD_SRC)
gst_pad_unlink(pad, peer);
else
gst_pad_unlink(peer, pad);
gst_object_unref(peer);
}
gst_object_unref(pad); // for iterator
}
//FIXME this should be part of the library
void
shmdata_base_reader_unlink_pad (GstPad *pad)
{
GstPad *peer;
if ((peer = gst_pad_get_peer (pad))) {
if (gst_pad_get_direction (pad) == GST_PAD_SRC)
gst_pad_unlink (pad, peer);
else
gst_pad_unlink (peer, pad);
gst_object_unref (peer);
}
gst_object_unref(pad);
}
static void
really_remove_filter (GstPad *pad,
gboolean blocked,
RBGstPipelineOp *op)
{
GstPad *mypad;
GstPad *prevpad, *nextpad;
GstElement *bin;
/* get the containing bin and remove it */
bin = GST_ELEMENT (gst_element_get_parent (op->element));
if (bin == NULL) {
return;
}
rb_debug ("removing filter %p", op->element);
_rb_player_gst_filter_emit_filter_pre_remove (RB_PLAYER_GST_FILTER (op->player), op->element);
/* probably check return? */
gst_element_set_state (bin, GST_STATE_NULL);
/* unlink our sink */
mypad = gst_element_get_static_pad (bin, "sink");
prevpad = gst_pad_get_peer (mypad);
gst_pad_unlink (prevpad, mypad);
gst_object_unref (mypad);
/* unlink our src */
mypad = gst_element_get_static_pad (bin, "src");
nextpad = gst_pad_get_peer (mypad);
gst_pad_unlink (mypad, nextpad);
gst_object_unref (mypad);
/* link previous and next pads */
gst_pad_link (prevpad, nextpad);
gst_object_unref (prevpad);
gst_object_unref (nextpad);
gst_bin_remove (GST_BIN (op->fixture), bin);
gst_object_unref (bin);
/* if we're supposed to be playing, unblock the sink */
if (blocked) {
rb_debug ("unblocking pad after removing filter");
gst_pad_set_blocked_async (pad, FALSE, (GstPadBlockCallback)pipeline_op_done, NULL);
}
free_pipeline_op (op);
}
static void
change_input (gpointer pipeline)
{
GstBin *pipe = GST_BIN (pipeline);
GstElement *agnosticbin;
GstPad *peer, *sink;
GstElement *agnosticbin2 = gst_bin_get_by_name (pipe, "agnosticbin_2");
GstElement *enc = gst_element_factory_make ("vp8enc", NULL);
GstElement *fakesink = gst_bin_get_by_name (pipe, "fakesink");
g_signal_connect (G_OBJECT (fakesink), "handoff",
G_CALLBACK (fakesink_hand_off), loop);
gst_bin_add (pipe, enc);
gst_element_sync_state_with_parent (enc);
sink = gst_element_get_static_pad (agnosticbin2, "sink");
peer = gst_pad_get_peer (sink);
agnosticbin = gst_pad_get_parent_element (peer);
gst_pad_unlink (peer, sink);
GST_INFO ("Got peer: %" GST_PTR_FORMAT, peer);
gst_element_release_request_pad (agnosticbin, peer);
gst_element_link (enc, agnosticbin2);
gst_element_link (agnosticbin, enc);
g_object_unref (agnosticbin);
g_object_unref (agnosticbin2);
g_object_unref (sink);
g_object_unref (peer);
}
static void
fakesink_hand_off_simple (GstElement * fakesink, GstBuffer * buf, GstPad * pad,
gpointer data)
{
static int count = 0;
GMainLoop *loop = (GMainLoop *) data;
count++;
if (count == 40) {
GstPad *peer = gst_pad_get_peer (pad);
ElementsData *elements = g_slice_new (ElementsData);
elements->agnosticbin = gst_pad_get_parent_element (peer);
elements->fakesink = g_object_ref (fakesink);
gst_pad_unlink (peer, pad);
g_object_unref (peer);
g_idle_add_full (G_PRIORITY_DEFAULT, reconnect_elements, elements,
free_elements);
} else if (count > 100) {
g_object_set (G_OBJECT (fakesink), "signal-handoffs", FALSE, NULL);
g_idle_add (quit_main_loop_idle, loop);
}
}
static void
on_new_pad (GstElement * dec, GstPad * pad, GstElement * sinkElement)
{
GstPad *sinkpad;
if(pad==NULL) return;
if(sinkElement==NULL) return;
sinkpad = gst_element_get_static_pad (sinkElement, "sink");
if(sinkpad==NULL) return;
if (!gst_pad_is_linked (sinkpad)) {
GstPadLinkReturn ret = gst_pad_link (pad, sinkpad);
if(ret == GST_PAD_LINK_NOFORMAT) {
GstCaps* a, *b;
a = gst_pad_get_current_caps(pad);
b = gst_pad_get_current_caps(sinkpad);
g_warning("Formats of A: %s\nFormats of B:%s\n",
a ? gst_caps_to_string(a) : "<NULL>",
b ? gst_caps_to_string(b) : "<NULL>");
gst_pad_unlink (pad, sinkpad);
} else if(ret != GST_PAD_LINK_OK) {
GstElement* parentA = gst_pad_get_parent_element(pad);
GstElement* parentB = gst_pad_get_parent_element(sinkpad);
g_error ("Failed to link pads! %s - %s : %d",
gst_element_get_name(parentA),
gst_element_get_name(parentB),
ret);
g_object_unref(parentA);
g_object_unref(parentB);
exit(3);
}
}
gst_object_unref (sinkpad);
}
static GstFlowReturn
no_fail_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
{
GstFlowReturn ret;
GstPadChainFunction old_func =
g_object_get_data (G_OBJECT (pad), OLD_CHAIN_KEY);
if (old_func == NULL) {
return GST_FLOW_OK;
}
ret = old_func (pad, parent, buffer);
if (G_UNLIKELY (ret != GST_FLOW_OK)) {
GstPad *peer;
switch (ret) {
case GST_FLOW_FLUSHING:
break;
default:
GST_WARNING_OBJECT (pad, "Chain returned: %s. It will be unlinked",
gst_flow_get_name (ret));
peer = gst_pad_get_peer (pad);
if (peer != NULL) {
gst_pad_unlink (peer, pad);
g_object_unref (peer);
}
}
}
return GST_FLOW_OK;
}
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);
}
void GStreamerGWorld::removePlatformVideoSink()
{
if (!m_dynamicPadName)
return;
// Get video sink bin and the elements to remove.
GstElement* sinkPtr = 0;
g_object_get(m_pipeline, "video-sink", &sinkPtr, NULL);
GRefPtr<GstElement> videoSink = adoptGRef(sinkPtr);
GRefPtr<GstElement> tee = adoptGRef(gst_bin_get_by_name(GST_BIN(videoSink.get()), "videoTee"));
GRefPtr<GstElement> platformVideoSink = adoptGRef(gst_bin_get_by_name(GST_BIN(videoSink.get()), "platformVideoSink"));
GRefPtr<GstElement> queue = adoptGRef(gst_bin_get_by_name(GST_BIN(videoSink.get()), "queue"));
GRefPtr<GstElement> colorspace = adoptGRef(gst_bin_get_by_name(GST_BIN(videoSink.get()), "colorspace"));
GRefPtr<GstElement> videoScale = adoptGRef(gst_bin_get_by_name(GST_BIN(videoSink.get()), "videoScale"));
GRefPtr<GstPad> srcPad = adoptGRef(gst_element_get_static_pad(tee.get(), m_dynamicPadName.get()));
GRefPtr<GstPad> sinkPad = adoptGRef(gst_element_get_static_pad(queue.get(), "sink"));
gst_pad_unlink(srcPad.get(), sinkPad.get());
gst_element_release_request_pad(tee.get(), srcPad.get());
gst_element_unlink_many(queue.get(), colorspace.get(), videoScale.get(), platformVideoSink.get(), NULL);
gst_bin_remove_many(GST_BIN(videoSink.get()), queue.get(), colorspace.get(), videoScale.get(), platformVideoSink.get(), NULL);
gst_element_set_state(platformVideoSink.get(), GST_STATE_NULL);
gst_element_set_state(videoScale.get(), GST_STATE_NULL);
gst_element_set_state(colorspace.get(), GST_STATE_NULL);
gst_element_set_state(queue.get(), GST_STATE_NULL);
m_dynamicPadName.clear();
}
static void
gst_hls_demux_stop_fetcher (GstHLSDemux * demux, gboolean cancelled)
{
GstPad *pad;
/* When the fetcher is stopped while it's downloading, we will get an EOS that
* unblocks the fetcher thread and tries to stop it again from that thread.
* Here we check if the fetcher as already been stopped before continuing */
if (demux->fetcher == NULL || demux->stopping_fetcher)
return;
GST_DEBUG_OBJECT (demux, "Stopping fetcher.");
demux->stopping_fetcher = TRUE;
/* set the element state to NULL */
gst_element_set_state (demux->fetcher, GST_STATE_NULL);
gst_element_get_state (demux->fetcher, NULL, NULL, GST_CLOCK_TIME_NONE);
/* unlink it from the internal pad */
pad = gst_pad_get_peer (demux->fetcherpad);
if (pad) {
gst_pad_unlink (pad, demux->fetcherpad);
gst_object_unref (pad);
}
/* and finally unref it */
gst_object_unref (demux->fetcher);
demux->fetcher = NULL;
/* if we stopped it to cancell a download, free the cached buffer */
if (cancelled && !gst_adapter_available (demux->download)) {
gst_adapter_clear (demux->download);
}
/* signal the fetcher thread that the download has finished/cancelled */
if (cancelled)
g_cond_broadcast (demux->fetcher_cond);
}
/* remove the source from the pipeline after removing it from adder */
static void
remove_source (SourceInfo * info)
{
g_print ("remove freq %f\n", info->freq);
/* lock the state so that we can put it to NULL without the parent messing
* with our state */
gst_element_set_locked_state (info->element, TRUE);
/* first stop the source. Remember that this might block when in the PAUSED
* state. Alternatively one could send EOS to the source, install an event
* probe and schedule a state change/unlink/release from the mainthread.
* Note that changing the state of a source makes it emit an EOS, which can
* make adder go EOS. */
gst_element_set_state (info->element, GST_STATE_NULL);
/* unlink from adder */
gst_pad_unlink (info->srcpad, info->sinkpad);
gst_object_unref (info->srcpad);
/* remove from the bin */
gst_bin_remove (GST_BIN (pipeline), info->element);
/* give back the pad */
gst_element_release_request_pad (adder, info->sinkpad);
gst_object_unref (info->sinkpad);
g_free (info);
}
static GstPadProbeReturn
unlink_audiotestsrc (GstPad * pad, GstPadProbeInfo * info, gpointer user_data)
{
GstElement *audiotestsrc = GST_ELEMENT (user_data);
GstElement *audiomixer;
GstPad *sinkpad;
GST_DEBUG ("Blocked %" GST_PTR_FORMAT, pad);
sinkpad = gst_pad_get_peer (pad);
if (sinkpad == NULL) {
GST_DEBUG_OBJECT (pad, "No peer pad");
return GST_PAD_PROBE_DROP;
}
audiomixer = gst_pad_get_parent_element (sinkpad);
if (audiomixer == NULL) {
GST_DEBUG_OBJECT (pad, "No audiomixer");
return GST_PAD_PROBE_DROP;
}
if (!gst_pad_unlink (pad, sinkpad)) {
GST_ERROR ("Can not unilnk pads");
}
GST_DEBUG ("Releasing %" GST_PTR_FORMAT, sinkpad);
gst_element_release_request_pad (audiomixer, sinkpad);
gst_object_unref (sinkpad);
gst_object_unref (audiomixer);
g_idle_add ((GSourceFunc) remove_audiotestsrc, audiotestsrc);
return GST_PAD_PROBE_DROP;
}
void
MediaSink::unlinkUnchecked (GstPad *sink)
{
GstPad *peer;
GstPad *sinkPad;
if (sink == NULL)
sinkPad = gst_element_get_static_pad (getElement(), getPadName().c_str() );
else
sinkPad = sink;
if (sinkPad == NULL)
return;
peer = gst_pad_get_peer (sinkPad);
if (peer != NULL) {
gst_pad_unlink (peer, sinkPad);
g_object_unref (peer);
}
if (sink == NULL) {
GstElement *elem;
elem = gst_pad_get_parent_element (sinkPad);
gst_element_release_request_pad (elem, sinkPad);
g_object_unref (elem);
g_object_unref (sinkPad);
}
}
static GstPadProbeReturn tee_idle_probe_cb(GstPad *teepad, GstPadProbeInfo *info, gpointer user_data)
{
OwrMediaSource * media_source = user_data;
GstElement *sink_bin;
GstPad *sinkpad;
GstObject *parent;
GstElement *tee;
gst_pad_remove_probe(teepad, GST_PAD_PROBE_INFO_ID(info));
sinkpad = gst_pad_get_peer(teepad);
g_assert(sinkpad);
sink_bin = GST_ELEMENT(gst_object_get_parent(GST_OBJECT(sinkpad)));
g_warn_if_fail(gst_pad_unlink(teepad, sinkpad));
parent = gst_pad_get_parent(teepad);
tee = GST_ELEMENT(parent);
gst_element_release_request_pad(tee, teepad);
gst_object_unref(parent);
gst_object_unref(sinkpad);
parent = gst_object_get_parent(GST_OBJECT(sink_bin));
g_assert(parent);
gst_bin_remove(GST_BIN(parent), sink_bin);
gst_element_set_state(sink_bin, GST_STATE_NULL);
gst_object_unref(sink_bin);
gst_object_unref(parent);
GST_DEBUG_OBJECT(media_source, "Source successfully unlinked");
return GST_PAD_PROBE_OK;
}
static void
kms_webrtc_data_session_bin_pad_removed (GstElement * sctpdec, GstPad * srcpad,
KmsWebRtcDataSessionBin * self)
{
GstPad *chann_srcpad, *sctpenc_sinkpad;
gboolean emit_signal = FALSE;
GstElement *channel;
guint sctp_stream_id;
gchar *name;
name = gst_pad_get_name (srcpad);
GST_DEBUG_OBJECT (self, "Pad removed %" GST_PTR_FORMAT, srcpad);
if (!sscanf (name, "src_%u", &sctp_stream_id)) {
g_free (name);
return;
}
g_free (name);
KMS_WEBRTC_DATA_SESSION_BIN_LOCK (self);
channel = (GstElement *) g_hash_table_lookup (self->priv->data_channels,
GUINT_TO_POINTER (sctp_stream_id));
g_hash_table_remove (self->priv->data_channels,
GUINT_TO_POINTER (sctp_stream_id));
g_hash_table_remove (self->priv->channels, GUINT_TO_POINTER (sctp_stream_id));
if (channel == NULL) {
GST_WARNING_OBJECT (self, "No data channel (%d) for pad %" GST_PTR_FORMAT,
sctp_stream_id, srcpad);
goto end;
}
gst_element_set_state (channel, GST_STATE_NULL);
chann_srcpad = gst_element_get_static_pad (channel, "src");
sctpenc_sinkpad = gst_pad_get_peer (chann_srcpad);
if (sctpenc_sinkpad != NULL) {
gst_pad_unlink (chann_srcpad, sctpenc_sinkpad);
gst_element_release_request_pad (self->priv->sctpenc, sctpenc_sinkpad);
g_object_unref (sctpenc_sinkpad);
}
g_object_unref (chann_srcpad);
gst_bin_remove (GST_BIN (self), channel);
emit_signal = TRUE;
end:
KMS_WEBRTC_DATA_SESSION_BIN_UNLOCK (self);
if (emit_signal) {
g_signal_emit (self, obj_signals[DATA_CHANNEL_CLOSED], 0, sctp_stream_id);
}
}
void
MediaSinkImpl::unlinkUnchecked (GstPad *sink)
{
GstPad *peer;
GstPad *sinkPad;
if (sink == NULL) {
sinkPad = gst_element_get_static_pad (getGstreamerElement(),
getPadName().c_str() );
} else {
sinkPad = sink;
}
if (sinkPad == NULL) {
return;
}
peer = gst_pad_get_peer (sinkPad);
if (peer != NULL) {
Glib::Threads::Cond cond;
Glib::Threads::Mutex cmutex;
bool blocked = FALSE;
std::function <void (GstPad *, GstPadProbeInfo *) >
blockedLambda = [&] (GstPad * pad, GstPadProbeInfo * info) {
Glib::Threads::Mutex::Lock lock (cmutex);
GST_DEBUG ("Peer pad blocked %" GST_PTR_FORMAT, pad);
if (blocked) {
return;
}
gst_pad_unlink (pad, sinkPad);
blocked = TRUE;
cond.signal();
};
gst_pad_add_probe (peer, (GstPadProbeType) (GST_PAD_PROBE_TYPE_BLOCKING),
pad_blocked_adaptor, &blockedLambda, NULL);
cmutex.lock ();
while (!blocked) {
cond.wait (cmutex);
}
cmutex.unlock ();
g_object_unref (peer);
}
if (sink == NULL) {
gst_element_release_request_pad (getGstreamerElement(), sinkPad);
g_object_unref (sinkPad);
}
}
/////////////////////////////////////////////////////////////////////////////////
// Unlinks all elements
//
bool CDFKAFU050::UnlinkPipeline()
{
#ifdef USE_AFU050
gst_element_set_state (_Pipeline.pipeline, GST_STATE_PAUSED);
gst_element_set_state (_Pipeline.pipeline, GST_STATE_NULL);
g_main_loop_quit (_Pipeline.loop);
// Pipeline to the tee. Does the camera control and color image.
gst_element_unlink_many(GetElement("appsrc"),
GetElement("jpegdec"),
GetElement("cogcolorspace"),
GetElement("tee"),
NULL);
gst_element_unlink_many(GetElement("queue1"), GetElement("videoscale1"), GetElement("filter"),
GetElement("ximagesink"), NULL);
gst_element_unlink_many(GetElement("queue2"), GetElement("image_sink"), NULL);
gst_pad_unlink(tee_q1_pad, q1_pad);
gst_pad_unlink(tee_q2_pad, q2_pad);
gst_object_unref(GetElement("appsrc"));
gst_object_unref(GetElement("filter"));
gst_object_unref(GetElement("jpegdec"));
gst_object_unref(GetElement("tee"));
gst_object_unref(GetElement("ximagesink"));
gst_object_unref(GetElement("queue1"));
gst_object_unref(GetElement("queue2"));
gst_object_unref(GetElement("videoscale1"));
gst_object_unref(GetElement("image_sink"));
// clean up and delete the pipeline
gst_object_unref (GST_OBJECT (_Pipeline.pipeline));
g_source_remove (_Pipeline.bus_watch_id);
#endif
return true;
}
static void
_unlink_track (GESPipeline * self, GESTrack * track)
{
OutputChain *chain;
GST_DEBUG_OBJECT (self, "Unlinking removed %" GST_PTR_FORMAT, track);
if (G_UNLIKELY (!(chain = get_output_chain_for_track (self, track)))) {
GST_DEBUG_OBJECT (self, "Track wasn't used");
return;
}
/* Unlink encodebin */
if (chain->encodebinpad) {
GstPad *peer = gst_pad_get_peer (chain->encodebinpad);
gst_pad_unlink (peer, chain->encodebinpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->encodebin,
chain->encodebinpad);
gst_object_unref (chain->encodebinpad);
}
/* Unlink playsink */
if (chain->playsinkpad) {
GstPad *peer = gst_pad_get_peer (chain->playsinkpad);
gst_pad_unlink (peer, chain->playsinkpad);
gst_object_unref (peer);
gst_element_release_request_pad (self->priv->playsink, chain->playsinkpad);
gst_object_unref (chain->playsinkpad);
}
gst_element_set_state (chain->tee, GST_STATE_NULL);
gst_bin_remove (GST_BIN (self), chain->tee);
if (chain->query_position_id) {
g_signal_handler_disconnect (ges_track_get_composition (track),
chain->query_position_id);
chain->query_position_id = 0;
}
self->priv->chains = g_list_remove (self->priv->chains, chain);
g_free (chain);
GST_DEBUG ("done");
}
static void
gst_ghost_pad_dispose (GObject * object)
{
GstPad *pad;
GstPad *internal;
GstPad *peer;
pad = GST_PAD (object);
GST_DEBUG_OBJECT (pad, "dispose");
gst_ghost_pad_set_target (GST_GHOST_PAD (pad), NULL);
/* Unlink here so that gst_pad_dispose doesn't. That would lead to a call to
* gst_ghost_pad_do_unlink when the ghost pad is in an inconsistent state */
peer = gst_pad_get_peer (pad);
if (peer) {
if (GST_PAD_IS_SRC (pad))
gst_pad_unlink (pad, peer);
else
gst_pad_unlink (peer, pad);
gst_object_unref (peer);
}
GST_PROXY_LOCK (pad);
internal = GST_PROXY_PAD_INTERNAL (pad);
gst_pad_set_activatepull_function (internal, NULL);
gst_pad_set_activatepush_function (internal, NULL);
g_signal_handler_disconnect (internal,
GST_GHOST_PAD_PRIVATE (pad)->notify_id);
/* disposes of the internal pad, since the ghostpad is the only possible object
* that has a refcount on the internal pad. */
gst_object_unparent (GST_OBJECT_CAST (internal));
GST_PROXY_PAD_INTERNAL (pad) = NULL;
GST_PROXY_UNLOCK (pad);
G_OBJECT_CLASS (gst_ghost_pad_parent_class)->dispose (object);
}
static gboolean
toggle_pads_link_state (GstPad * pad1, GstPad * pad2)
{
gboolean ok = TRUE;
if (gst_pad_is_linked (pad1)) {
if (gst_pad_get_direction (pad1) == GST_PAD_SINK)
gst_pad_unlink (pad2, pad1);
else
gst_pad_unlink (pad1, pad2);
} else {
if (gst_pad_get_direction (pad1) == GST_PAD_SINK)
ok &= (gst_pad_link (pad2, pad1) == 0);
else
ok &= (gst_pad_link (pad1, pad2) == 0);
}
return ok;
}
static gboolean
disconnect_elements (GstElement * agnosticbin, GstElement * audiomixer)
{
gboolean done = FALSE, disconnected = FALSE;
GValue val = G_VALUE_INIT;
GstIterator *it;
it = gst_element_iterate_src_pads (agnosticbin);
do {
switch (gst_iterator_next (it, &val)) {
case GST_ITERATOR_OK:
{
GstPad *srcpad, *sinkpad;
GstElement *mixer;
srcpad = g_value_get_object (&val);
sinkpad = gst_pad_get_peer (srcpad);
mixer = gst_pad_get_parent_element (sinkpad);
if (mixer == audiomixer) {
GST_DEBUG ("Unlink %" GST_PTR_FORMAT " and %" GST_PTR_FORMAT,
agnosticbin, mixer);
if (!gst_pad_unlink (srcpad, sinkpad)) {
GST_ERROR ("Can not unlink %" GST_PTR_FORMAT " and %"
GST_PTR_FORMAT, srcpad, sinkpad);
}
gst_element_release_request_pad (mixer, sinkpad);
gst_element_release_request_pad (agnosticbin, srcpad);
disconnected |= TRUE;
}
gst_object_unref (sinkpad);
gst_object_unref (mixer);
g_value_reset (&val);
break;
}
case GST_ITERATOR_RESYNC:
gst_iterator_resync (it);
break;
case GST_ITERATOR_ERROR:
GST_ERROR ("Error iterating over %s's src pads",
GST_ELEMENT_NAME (agnosticbin));
case GST_ITERATOR_DONE:
g_value_unset (&val);
done = TRUE;
break;
}
} while (!done);
gst_iterator_free (it);
return disconnected;
}
static HRESULT WINAPI Gstreamer_transform_Cleanup(TransformFilter *tf, PIN_DIRECTION dir) {
GstTfImpl *This = (GstTfImpl*)tf;
if (dir == PINDIR_INPUT)
{
if (This->filter) {
gst_element_set_state(This->filter, GST_STATE_NULL);
gst_object_unref(This->filter);
}
if (This->filter2) {
gst_element_set_state(This->filter2, GST_STATE_NULL);
gst_object_unref(This->filter2);
}
This->filter = NULL;
if (This->filter2) {
gst_pad_unlink(This->my_src, This->their_sink2);
gst_pad_unlink(This->their_src2, This->their_sink);
gst_pad_unlink(This->their_src, This->my_sink);
} else if (This->my_src)
gst_pad_unlink(This->my_src, This->their_sink);
if (This->their_src)
gst_pad_unlink(This->their_src, This->my_sink);
if (This->my_src)
gst_object_unref(This->my_src);
if (This->their_sink)
gst_object_unref(This->their_sink);
if (This->their_src)
gst_object_unref(This->their_src);
if (This->their_sink2)
gst_object_unref(This->their_sink2);
if (This->their_src2)
gst_object_unref(This->their_src2);
if (This->my_sink)
gst_object_unref(This->my_sink);
This->my_sink = This->my_src = This->their_sink = This->their_src = NULL;
This->their_src2 = This->their_sink2 = NULL;
This->filter2 = NULL;
}
return S_OK;
}
static void
unlink_src_pad (GstElement * element, const gchar * pad_name)
{
GstPad *pad = gst_element_get_static_pad (element, pad_name);
GstPad *peer = gst_pad_get_peer (pad);
gst_pad_unlink (pad, peer);
g_object_unref (pad);
g_object_unref (peer);
}