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gst/schedulers/gstoptimalscheduler.c

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Original commit message from CVS:
* gst/schedulers/gstoptimalscheduler.c
(gst_opt_scheduler_pad_unlink): Implement unlink for elements with
links to elements within the same group, so we can finally remove
that annoying warning. Refactor the code a little bit
(group_dec_links_for_element): Split out
This commit is contained in:
Johan Dahlin 2004-03-10 16:47:06 +00:00
parent ed58592fad
commit c24e220bfb
2 changed files with 95 additions and 60 deletions
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8
ChangeLog
View file

@ -1,3 +1,11 @@
2004-03-10 Johan Dahlin <johan@gnome.org>
* gst/schedulers/gstoptimalscheduler.c
(gst_opt_scheduler_pad_unlink): Implement unlink for elements with
links to elements within the same group, so we can finally remove
that annoying warning. Refactor the code a little bit
(group_dec_links_for_element): Split out
2004-03-09 David Schleef <ds@schleef.org>
* docs/manual/dparams-app.xml: Fix to handle double dparams.

145
gst/schedulers/gstoptimalscheduler.c
View file

@ -2013,6 +2013,23 @@ group_can_reach_group (GstOptSchedulerGroup *group, GstOptSchedulerGroup *target
return reachable;
}
static void
group_dec_links_for_element (GstOptSchedulerGroup* group, GstElement *element)
{
GList *l;
GstPad *pad;
GstOptSchedulerGroup *peer_group;
for (l=GST_ELEMENT_PADS(element); l; l=l->next) {
pad = (GstPad*)l->data;
if (GST_IS_REAL_PAD (pad) && GST_PAD_PEER (pad)) {
get_group (GST_PAD_PARENT (GST_PAD_PEER (pad)), &peer_group);
if (peer_group && peer_group != group)
group_dec_link (group, peer_group);
}
}
}
static void
gst_opt_scheduler_pad_unlink (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad)
{
@ -2080,6 +2097,7 @@ gst_opt_scheduler_pad_unlink (GstScheduler *sched, GstPad *srcpad, GstPad *sinkp
else {
gboolean still_link1, still_link2;
GstOptSchedulerGroup *group;
GstElement *element;
/* since group1 == group2, it doesn't matter which group we take */
group = group1;
@ -2094,75 +2112,84 @@ gst_opt_scheduler_pad_unlink (GstScheduler *sched, GstPad *srcpad, GstPad *sinkp
* elements to a new group. */
still_link1 = element_has_link_with_group (element1, group, srcpad);
still_link2 = element_has_link_with_group (element2, group, sinkpad);
/* if there is still a link, we don't need to break this group */
if (still_link1 && still_link2) {
GSList *l;
GList *m;;
int linkcount;
GST_LOG ( "elements still have links with other elements in the group");
/* FIXME it's possible that we have to break the group/chain. This heppens when
* the src element recursiveley has links with other elements in the group but not
* with all elements. */
g_warning ("opt: unlink elements in same group: implement me");
while (group->elements)
for (l = group->elements; l && l->data; l = l->next) {
element = (GstElement*)l->data;
if (GST_ELEMENT_IS_DECOUPLED (element))
continue;
linkcount = 0;
GST_LOG ("Examining %s\n", GST_ELEMENT_NAME (element));
for (m = GST_ELEMENT_PADS (element); m; m = m->next) {
GstPad *peer, *pad;
GstElement *parent;
GstOptSchedulerGroup *peer_group;
pad = (GstPad*)m->data;
if (!pad || !GST_IS_REAL_PAD (pad))
continue;
peer = GST_PAD_PEER (pad);
if (!peer || !GST_IS_REAL_PAD (peer))
continue;
parent = GST_PAD_PARENT (GST_PAD_PEER (pad));
get_group (parent, &peer_group);
if (peer_group && peer_group != group) {
GST_LOG ("pad %s is linked with %s\n",
GST_PAD_NAME (pad),
GST_ELEMENT_NAME (parent));
linkcount++;
}
}
if (linkcount < 2) {
group_dec_links_for_element (group, element);
remove_from_group (group, element);
}
/* if linkcount == 2, it will be unlinked later on */
else if (linkcount > 2) {
g_warning ("opt: Can't handle element %s with 3 or more links, aborting",
GST_ELEMENT_NAME (element));
return;
}
}
/* Peer element will be catched during next iteration */
return;
}
if (!still_link1 && !still_link2)
return;
/* now check which one of the elements we can remove from the group */
if (!still_link1) {
/* we only remove elements that are not the entry point of a loop based
* group and are not decoupled */
if (!(group->entry == element1 &&
group->type == GST_OPT_SCHEDULER_GROUP_LOOP) &&
!GST_ELEMENT_IS_DECOUPLED (element1))
{
GList *l;
GstPad *pad;
GstOptSchedulerGroup *peer_group;
GST_LOG ("element1 is separated from the group");
/* have to decrement links to other groups from other pads */
for (l=element1->pads; l; l=l->next) {
pad = (GstPad*)l->data;
if (GST_IS_REAL_PAD (pad) && GST_PAD_PEER (pad)) {
get_group (GST_PAD_PARENT (GST_PAD_PEER (pad)), &peer_group);
if (peer_group && peer_group != group)
group_dec_link (group, peer_group);
}
}
remove_from_group (group, element1);
}
else {
GST_LOG ("element1 is decoupled or entry in loop based group");
}
if (still_link1) {
element = element2;
}
else if (still_link2) {
element = element1;
}
if (!still_link2) {
/* we only remove elements that are not the entry point of a loop based
* group and are not decoupled */
if (!(group->entry == element2 &&
group->type == GST_OPT_SCHEDULER_GROUP_LOOP) &&
!GST_ELEMENT_IS_DECOUPLED (element2))
{
GList *l;
GstPad *pad;
GstOptSchedulerGroup *peer_group;
GST_LOG ("element2 is separated from the group");
/* we only remove elements that are not the entry point of a loop based
* group and are not decoupled */
if (!(group->entry == element &&
group->type == GST_OPT_SCHEDULER_GROUP_LOOP) &&
!GST_ELEMENT_IS_DECOUPLED (element)) {
GST_LOG ("element is separated from the group");
/* have to decrement links to other groups from other pads */
for (l=element2->pads; l; l=l->next) {
pad = (GstPad*)l->data;
if (GST_IS_REAL_PAD (pad) && GST_PAD_PEER (pad)) {
get_group (GST_PAD_PARENT (GST_PAD_PEER (pad)), &peer_group);
if (peer_group && peer_group != group)
group_dec_link (group, peer_group);
}
}
remove_from_group (group, element2);
}
else {
GST_LOG ("element2 is decoupled or entry in loop based group");
}
/* have to decrement links to other groups from other pads */
group_dec_links_for_element (group, element);
remove_from_group (group, element);
}
else {
GST_LOG ("element is decoupled or entry in loop based group");
}
}
}