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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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More updates to the non-cothread scheduler
Original commit message from CVS: More updates to the non-cothread scheduler
This commit is contained in:
Wim Taymans
parent
3a5b408709
commit
27301abdb3
1 changed files with 364 additions and 159 deletions
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@ -28,6 +28,7 @@
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#define GST_ELEMENT_SCHED_CONTEXT(elem) ((GstOptSchedulerCtx*) (GST_ELEMENT_CAST (elem)->sched_private))
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#define GST_ELEMENT_SCHED_GROUP(elem) (GST_ELEMENT_SCHED_CONTEXT (elem)->group)
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#define GST_PAD_BUFLIST(pad) ((GList*) (GST_REAL_PAD_CAST(pad)->sched_private))
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#define GST_ELEMENT_COTHREAD_STOPPING GST_ELEMENT_SCHEDULER_PRIVATE1
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#define GST_ELEMENT_IS_COTHREAD_STOPPING(element) GST_FLAG_IS_SET((element), GST_ELEMENT_COTHREAD_STOPPING)
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@ -58,15 +59,19 @@ typedef enum {
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} GstOptSchedulerState;
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struct _GstOptScheduler {
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GstScheduler parent;
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GstScheduler parent;
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GstOptSchedulerState state;
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GstOptSchedulerState state;
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cothread_context *context;
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gboolean use_cothreads;
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cothread_context *context;
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gboolean use_cothreads;
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gint iterations;
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GSList *elements;
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GSList *chains;
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GSList *elements;
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GSList *chains;
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GList *runqueue;
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gint recursion;
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};
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struct _GstOptSchedulerClass {
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@ -154,10 +159,22 @@ struct _GstOptSchedulerCtx {
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gint element_type;
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};
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enum
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{
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ARG_0,
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ARG_USE_COTHREADS,
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ARG_ITERATIONS,
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};
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static void gst_opt_scheduler_class_init (GstOptSchedulerClass *klass);
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static void gst_opt_scheduler_init (GstOptScheduler *scheduler);
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static void gst_opt_scheduler_set_property (GObject *object, guint prop_id,
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const GValue *value, GParamSpec *pspec);
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static void gst_opt_scheduler_get_property (GObject *object, guint prop_id,
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GValue *value, GParamSpec *pspec);
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static void gst_opt_scheduler_dispose (GObject *object);
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static void gst_opt_scheduler_setup (GstScheduler *sched);
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@ -218,8 +235,17 @@ gst_opt_scheduler_class_init (GstOptSchedulerClass *klass)
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parent_class = g_type_class_ref (GST_TYPE_SCHEDULER);
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gobject_class->set_property = GST_DEBUG_FUNCPTR (gst_opt_scheduler_set_property);
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gobject_class->get_property = GST_DEBUG_FUNCPTR (gst_opt_scheduler_get_property);
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gobject_class->dispose = GST_DEBUG_FUNCPTR (gst_opt_scheduler_dispose);
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_USE_COTHREADS,
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g_param_spec_boolean ("use_cothreads", "Use cothreads", "Should this scheduler use cothreads",
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TRUE, G_PARAM_READWRITE));
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g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_USE_COTHREADS,
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g_param_spec_int ("iterations", "Iterations", "Number of groups to schedule in one iteration (-1 == until EOS/error)",
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-1, G_MAXINT, 1, G_PARAM_READWRITE));
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gstscheduler_class->setup = GST_DEBUG_FUNCPTR (gst_opt_scheduler_setup);
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gstscheduler_class->reset = GST_DEBUG_FUNCPTR (gst_opt_scheduler_reset);
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gstscheduler_class->add_element = GST_DEBUG_FUNCPTR (gst_opt_scheduler_add_element);
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@ -242,8 +268,9 @@ static void
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gst_opt_scheduler_init (GstOptScheduler *scheduler)
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{
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scheduler->elements = NULL;
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scheduler->use_cothreads = FALSE;
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//scheduler->use_cothreads = FALSE;
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scheduler->use_cothreads = TRUE;
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scheduler->iterations = 1;
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}
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static void
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@ -279,31 +306,6 @@ GstPluginDesc plugin_desc = {
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plugin_init
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};
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/*
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* Entry points for this scheduler.
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*/
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static void
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gst_opt_scheduler_setup (GstScheduler *sched)
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{
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GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
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/* first create thread context */
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if (osched->context == NULL && osched->use_cothreads) {
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GST_DEBUG (GST_CAT_SCHEDULING, "initializing cothread context");
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osched->context = do_cothread_context_init ();
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}
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}
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static void
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gst_opt_scheduler_reset (GstScheduler *sched)
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{
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GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
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if (osched->context && osched->use_cothreads) {
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do_cothread_context_destroy (osched->context);
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osched->context = NULL;
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}
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}
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static void
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delete_chain (GstOptScheduler *osched, GstOptSchedulerChain *chain)
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@ -506,6 +508,9 @@ remove_from_group (GstOptSchedulerGroup *group, GstElement *element)
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}
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*/
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/* this function enables/disables an element, it will set/clear a flag on the element
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* and tells the chain that the group is enabled if all elements inside the group are
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* enabled */
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static void
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group_element_set_enabled (GstOptSchedulerGroup *group, GstElement *element, gboolean enabled)
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{
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@ -531,24 +536,51 @@ group_element_set_enabled (GstOptSchedulerGroup *group, GstElement *element, gbo
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}
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}
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static int
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/* a group is scheduled by doing a cothread switch to it or
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* by calling the schedule function. In the non-cothread case
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* we cannot run already running groups so we return FALSE here
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* to indicate this to the caller */
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static gboolean
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schedule_group (GstOptSchedulerGroup *group)
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{
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if (group->chain->sched->use_cothreads) {
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if (group->cothread)
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do_cothread_switch (group->cothread);
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return 1;
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return TRUE;
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}
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else {
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/* in the no cothread case, we cannot schedule already running groups */
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if (!(group->flags & GST_OPT_SCHEDULER_GROUP_RUNNING)) {
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group->schedulefunc (group->argc, group->argv);
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return 1;
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}
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group->schedulefunc (group->argc, group->argv);
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return TRUE;
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}
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return 0;
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return FALSE;
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}
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static void
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gst_opt_scheduler_schedule_run_queue (GstOptScheduler *osched)
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{
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GST_INFO (GST_CAT_SCHEDULING, "entering scheduler run queue recursion %d", osched->recursion);
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osched->recursion++;
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while (osched->runqueue) {
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GstOptSchedulerGroup *group;
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group = (GstOptSchedulerGroup *) osched->runqueue->data;
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osched->runqueue = g_list_remove (osched->runqueue, group);
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GST_INFO (GST_CAT_SCHEDULING, "scheduling %p", group);
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schedule_group (group);
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GST_INFO (GST_CAT_SCHEDULING, "done scheduling %p", group);
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}
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GST_INFO (GST_CAT_SCHEDULING, "run queue length after scheduling %d", g_list_length (osched->runqueue));
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osched->recursion--;
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}
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/* a chain is scheduled by picking the first active group and scheduling it */
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static void
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schedule_chain (GstOptSchedulerChain *chain)
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{
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@ -556,61 +588,39 @@ schedule_chain (GstOptSchedulerChain *chain)
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while (groups) {
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GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) groups->data;
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groups = g_slist_next (groups);
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if (!GST_OPT_SCHEDULER_GROUP_IS_DISABLED (group)) {
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GstOptScheduler *osched;
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osched = chain->sched;
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GST_INFO (GST_CAT_SCHEDULING, "scheduling group %p in chain %p",
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group, chain);
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schedule_group (group);
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if (osched->use_cothreads) {
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schedule_group (group);
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}
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else {
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osched->recursion = 0;
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osched->runqueue = g_list_append (osched->runqueue, group);
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gst_opt_scheduler_schedule_run_queue (osched);
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}
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GST_INFO (GST_CAT_SCHEDULING, "done scheduling group %p in chain %p",
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group, chain);
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break;
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}
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}
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}
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static void
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gst_opt_scheduler_add_element (GstScheduler *sched, GstElement *element)
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{
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GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
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GstOptSchedulerCtx *ctx;
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GST_INFO (GST_CAT_SCHEDULING, "adding element \"%s\" to scheduler", GST_ELEMENT_NAME (element));
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if (GST_ELEMENT_IS_DECOUPLED (element))
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return;
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ctx = g_new0 (GstOptSchedulerCtx, 1);
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GST_ELEMENT_SCHED_CONTEXT (element) = ctx;
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if (element->loopfunc) {
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GstOptSchedulerGroup *group;
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GstOptSchedulerChain *chain;
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chain = create_chain (osched);
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group = create_group (chain, element);
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group->entry = element;
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group->type = GST_OPT_SCHEDULER_GROUP_LOOP;
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GST_INFO (GST_CAT_SCHEDULING, "added element \"%s\" as loop based entry", GST_ELEMENT_NAME (element));
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}
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}
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static void
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gst_opt_scheduler_remove_element (GstScheduler *sched, GstElement *element)
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{
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//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
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GST_INFO (GST_CAT_SCHEDULING, "removing element \"%s\" from scheduler", GST_ELEMENT_NAME (element));
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g_free (GST_ELEMENT_SCHED_CONTEXT (element));
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GST_ELEMENT_SCHED_CONTEXT (element) = NULL;
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g_warning ("remove implement me");
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}
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/* a get-based group is scheduled by getting a buffer from the get based
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* entry point and by pushing the buffer to the peer.
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* We also set the running flag on this group for as long as this
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* function is running. */
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static int
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get_wrapper (int argc, char *argv[])
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get_group_schedule_function (int argc, char *argv[])
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{
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GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) argv;
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const GList *pads = gst_element_get_pad_list (group->entry);
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@ -641,8 +651,12 @@ get_wrapper (int argc, char *argv[])
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return 0;
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}
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/* a loop-based group is scheduled by calling the loop function
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* on the entry point.
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* We also set the running flag on this group for as long as this
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* function is running. */
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static int
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loop_wrapper (int argc, char *argv[])
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loop_group_schedule_function (int argc, char *argv[])
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{
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GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) argv;
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GstElement *entry = group->entry;
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@ -662,8 +676,9 @@ loop_wrapper (int argc, char *argv[])
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}
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/* the function to schedule an unkown group, which just gives an error */
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static int
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unkown_wrapper (int argc, char *argv[])
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unkown_group_schedule_function (int argc, char *argv[])
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{
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GstOptSchedulerGroup *group = (GstOptSchedulerGroup *) argv;
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@ -674,59 +689,89 @@ unkown_wrapper (int argc, char *argv[])
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return 0;
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}
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/* this function is called when the first element of a chain-loop or a loop-loop
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* connection performs a push to the loop element. We then schedule the
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* group with the loop-based element until the bufpen is empty */
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static void
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gst_opt_scheduler_loop_wrapper (GstPad *sinkpad, GstBuffer *buffer)
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{
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GstOptSchedulerGroup *group;
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GstOptScheduler *osched;
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GST_INFO (GST_CAT_SCHEDULING, "loop wrapper, putting buffer in bufpen");
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group = GST_ELEMENT_SCHED_GROUP (GST_PAD_PARENT (sinkpad));
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osched = group->chain->sched;
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if (GST_RPAD_BUFPEN (GST_RPAD_PEER (sinkpad))) {
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g_warning ("scheduling error, bufpen not empty, disabling group %p", group);
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chain_group_set_enabled (group->chain, group, FALSE);
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group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
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return;
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if (osched->use_cothreads) {
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if (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad))) {
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g_warning ("deadlock detected, disabling group %p", group);
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chain_group_set_enabled (group->chain, group, FALSE);
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group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
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}
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else {
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GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)) = g_list_append (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)), buffer);
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schedule_group (group);
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}
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}
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else if (!(group->flags & GST_OPT_SCHEDULER_GROUP_RUNNING)) {
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GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)) = g_list_append (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad)), buffer);
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osched->runqueue = g_list_append (osched->runqueue, group);
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}
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GST_RPAD_BUFPEN (GST_RPAD_PEER (sinkpad)) = buffer;
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while (GST_RPAD_BUFPEN (GST_RPAD_PEER (sinkpad))) {
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if (!schedule_group (group))
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break;
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}
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GST_INFO (GST_CAT_SCHEDULING, "after loop wrapper buflist %d",
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g_list_length (GST_PAD_BUFLIST (GST_RPAD_PEER (sinkpad))));
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}
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/* this function is called by a loop based element that performs a
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* pull on a sinkpad. We schedule the peer group until the bufpen
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* is filled with the buffer so that this function can return */
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static GstBuffer*
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gst_opt_scheduler_get_wrapper (GstPad *srcpad)
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{
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GstBuffer *buffer;
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GstBuffer *buffer = NULL;
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GST_INFO (GST_CAT_SCHEDULING, "get wrapper, removing buffer from bufpen");
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buffer = GST_RPAD_BUFPEN (srcpad);
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if (GST_PAD_BUFLIST (srcpad))
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buffer = GST_PAD_BUFLIST (srcpad)->data;
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while (!buffer) {
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GstOptSchedulerGroup *group;
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GstOptScheduler *osched;
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group = GST_ELEMENT_SCHED_GROUP (GST_PAD_PARENT (srcpad));
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osched = group->chain->sched;
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if (!schedule_group (group)) {
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if (osched->use_cothreads) {
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schedule_group (group);
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}
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else if (!(group->flags & GST_OPT_SCHEDULER_GROUP_RUNNING)) {
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osched->runqueue = g_list_append (osched->runqueue, group);
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gst_opt_scheduler_schedule_run_queue (osched);
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}
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else {
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g_warning ("deadlock detected, disabling group %p", group);
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chain_group_set_enabled (group->chain, group, FALSE);
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group->chain->sched->state = GST_OPT_SCHEDULER_STATE_ERROR;
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return NULL;
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}
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buffer = GST_RPAD_BUFPEN (srcpad);
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if (GST_PAD_BUFLIST (srcpad)) {
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buffer = (GstBuffer *) GST_PAD_BUFLIST (srcpad)->data;
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}
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}
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GST_PAD_BUFLIST (srcpad) = g_list_remove (GST_PAD_BUFLIST (srcpad), buffer);
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GST_RPAD_BUFPEN (srcpad) = NULL;
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GST_INFO (GST_CAT_SCHEDULING, "get wrapper, returning buffer %d",
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g_list_length (GST_PAD_BUFLIST (srcpad)));
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return buffer;
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}
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/* this function is a chain wrapper for non-event-aware plugins,
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* it'll simply dispatch the events to the (default) event handler */
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static void
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gst_opt_scheduler_chain_wrapper (GstPad *sinkpad, GstBuffer *buffer)
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{
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@ -738,17 +783,21 @@ gst_opt_scheduler_chain_wrapper (GstPad *sinkpad, GstBuffer *buffer)
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}
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}
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/* setup the scheduler context for a group. The right schedule function
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* is selected based on the group type and cothreads are created if
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* needed */
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static void
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setup_group_scheduler (GstOptScheduler *osched, GstOptSchedulerGroup *group)
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{
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GroupScheduleFunction wrapper;
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wrapper = unkown_wrapper;
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wrapper = unkown_group_schedule_function;
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/* figure out the wrapper function for this group */
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if (group->type == GST_OPT_SCHEDULER_GROUP_GET)
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wrapper = get_wrapper;
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wrapper = get_group_schedule_function;
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else if (group->type == GST_OPT_SCHEDULER_GROUP_LOOP)
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wrapper = loop_wrapper;
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wrapper = loop_group_schedule_function;
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if (osched->use_cothreads) {
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if (!(group->flags & GST_OPT_SCHEDULER_GROUP_SCHEDULABLE)) {
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@ -773,9 +822,11 @@ gst_opt_scheduler_state_transition (GstScheduler *sched, GstElement *element, gi
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{
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GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
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GstOptSchedulerGroup *group;
|
||||
GstElementStateReturn res = GST_STATE_SUCCESS;
|
||||
|
||||
GST_INFO (GST_CAT_SCHEDULING, "element \"%s\" state change %d", GST_ELEMENT_NAME (element), transition);
|
||||
|
||||
/* we check the state of the managing pipeline here */
|
||||
if (GST_IS_BIN (element)) {
|
||||
if (GST_SCHEDULER_PARENT (sched) == element) {
|
||||
GST_INFO (GST_CAT_SCHEDULING, "parent \"%s\" changed state", GST_ELEMENT_NAME (element));
|
||||
|
|
@ -793,58 +844,38 @@ gst_opt_scheduler_state_transition (GstScheduler *sched, GstElement *element, gi
|
|||
GST_INFO (GST_CAT_SCHEDULING, "no interesting state change, doing nothing");
|
||||
}
|
||||
}
|
||||
return GST_STATE_SUCCESS;
|
||||
return res;
|
||||
}
|
||||
|
||||
/* we don't care about decoupled elements after this */
|
||||
if (GST_ELEMENT_IS_DECOUPLED (element))
|
||||
return GST_STATE_SUCCESS;
|
||||
|
||||
/* get the group of the element */
|
||||
group = GST_ELEMENT_SCHED_GROUP (element);
|
||||
|
||||
switch (transition) {
|
||||
case GST_STATE_PAUSED_TO_PLAYING:
|
||||
setup_group_scheduler (osched, group);
|
||||
group_element_set_enabled (group, element, TRUE);
|
||||
/* an element withut a group has to be an unconnected src, sink
|
||||
* filter element */
|
||||
if (!group)
|
||||
res = GST_STATE_FAILURE;
|
||||
/* else construct the scheduling context of this group and enable it */
|
||||
else {
|
||||
setup_group_scheduler (osched, group);
|
||||
group_element_set_enabled (group, element, TRUE);
|
||||
}
|
||||
break;
|
||||
case GST_STATE_PLAYING_TO_PAUSED:
|
||||
group_element_set_enabled (group, element, FALSE);
|
||||
/* if the element still has a group, we disable it */
|
||||
if (group)
|
||||
group_element_set_enabled (group, element, FALSE);
|
||||
break;
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
||||
return GST_STATE_SUCCESS;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_lock_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_unlock_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_yield (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_opt_scheduler_interrupt (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_error (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
return res;
|
||||
}
|
||||
|
||||
/*
|
||||
|
|
@ -917,6 +948,114 @@ typedef enum {
|
|||
GST_OPT_LOOP_TO_LOOP,
|
||||
} ConnectionType;
|
||||
|
||||
/*
|
||||
* Entry points for this scheduler.
|
||||
*/
|
||||
static void
|
||||
gst_opt_scheduler_setup (GstScheduler *sched)
|
||||
{
|
||||
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
/* first create thread context */
|
||||
if (osched->context == NULL && osched->use_cothreads) {
|
||||
GST_DEBUG (GST_CAT_SCHEDULING, "initializing cothread context");
|
||||
osched->context = do_cothread_context_init ();
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_reset (GstScheduler *sched)
|
||||
{
|
||||
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
if (osched->context && osched->use_cothreads) {
|
||||
do_cothread_context_destroy (osched->context);
|
||||
osched->context = NULL;
|
||||
}
|
||||
}
|
||||
static void
|
||||
gst_opt_scheduler_add_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
GstOptSchedulerCtx *ctx;
|
||||
|
||||
GST_INFO (GST_CAT_SCHEDULING, "adding element \"%s\" to scheduler", GST_ELEMENT_NAME (element));
|
||||
|
||||
/* decoupled elements are not added to the scheduler lists */
|
||||
if (GST_ELEMENT_IS_DECOUPLED (element))
|
||||
return;
|
||||
|
||||
ctx = g_new0 (GstOptSchedulerCtx, 1);
|
||||
GST_ELEMENT_SCHED_CONTEXT (element) = ctx;
|
||||
|
||||
/* loop based elements *always* end up in their own group. It can eventually
|
||||
* be merged with another group when a connection is made */
|
||||
if (element->loopfunc) {
|
||||
GstOptSchedulerGroup *group;
|
||||
GstOptSchedulerChain *chain;
|
||||
|
||||
chain = create_chain (osched);
|
||||
|
||||
group = create_group (chain, element);
|
||||
group->entry = element;
|
||||
group->type = GST_OPT_SCHEDULER_GROUP_LOOP;
|
||||
|
||||
GST_INFO (GST_CAT_SCHEDULING, "added element \"%s\" as loop based entry", GST_ELEMENT_NAME (element));
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_remove_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
GST_INFO (GST_CAT_SCHEDULING, "removing element \"%s\" from scheduler", GST_ELEMENT_NAME (element));
|
||||
|
||||
g_free (GST_ELEMENT_SCHED_CONTEXT (element));
|
||||
GST_ELEMENT_SCHED_CONTEXT (element) = NULL;
|
||||
|
||||
g_warning ("remove implement me");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_lock_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
g_warning ("lock element, implement me");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_unlock_element (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
g_warning ("unlock element, implement me");
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_yield (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_opt_scheduler_interrupt (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
g_warning ("interrupt element, implement me");
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_error (GstScheduler *sched, GstElement *element)
|
||||
{
|
||||
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
osched->state = GST_OPT_SCHEDULER_STATE_ERROR;
|
||||
}
|
||||
|
||||
/* connect pads, merge groups and chains */
|
||||
static void
|
||||
gst_opt_scheduler_pad_connect (GstScheduler *sched, GstPad *srcpad, GstPad *sinkpad)
|
||||
{
|
||||
|
|
@ -1056,6 +1195,9 @@ static GstPad*
|
|||
gst_opt_scheduler_pad_select (GstScheduler *sched, GList *padlist)
|
||||
{
|
||||
//GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
|
||||
g_warning ("pad select, implement me");
|
||||
|
||||
return NULL;
|
||||
}
|
||||
|
||||
|
|
@ -1066,35 +1208,51 @@ gst_opt_scheduler_clock_wait (GstScheduler *sched, GstElement *element,
|
|||
return gst_clock_wait (clock, time, jitter);
|
||||
}
|
||||
|
||||
/* a scheduler iteration is done by looping and scheduling the active chains */
|
||||
static GstSchedulerState
|
||||
gst_opt_scheduler_iterate (GstScheduler *sched)
|
||||
{
|
||||
GstSchedulerState state;
|
||||
GstSchedulerState state = GST_SCHEDULER_STATE_STOPPED;
|
||||
GstOptScheduler *osched = GST_OPT_SCHEDULER_CAST (sched);
|
||||
GSList *chains;
|
||||
gboolean scheduled = FALSE;
|
||||
gint iterations = osched->iterations;
|
||||
|
||||
osched->state = GST_OPT_SCHEDULER_STATE_RUNNING;
|
||||
|
||||
chains = osched->chains;
|
||||
while (chains) {
|
||||
GstOptSchedulerChain *chain = (GstOptSchedulerChain *) chains->data;
|
||||
chains = g_slist_next (chains);
|
||||
while (iterations) {
|
||||
gboolean scheduled = FALSE;
|
||||
GSList *chains;
|
||||
|
||||
if (!GST_OPT_SCHEDULER_CHAIN_IS_DISABLED (chain)) {
|
||||
schedule_chain (chain);
|
||||
scheduled = TRUE;
|
||||
/* we have to schedule each of the scheduler chains now */
|
||||
chains = osched->chains;
|
||||
while (chains) {
|
||||
GstOptSchedulerChain *chain = (GstOptSchedulerChain *) chains->data;
|
||||
chains = g_slist_next (chains);
|
||||
|
||||
/* if the chain is not disabled, schedule it */
|
||||
if (!GST_OPT_SCHEDULER_CHAIN_IS_DISABLED (chain)) {
|
||||
schedule_chain (chain);
|
||||
scheduled = TRUE;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (osched->state == GST_OPT_SCHEDULER_STATE_ERROR) {
|
||||
state = GST_SCHEDULER_STATE_ERROR;
|
||||
}
|
||||
else {
|
||||
if (scheduled)
|
||||
state = GST_SCHEDULER_STATE (sched);
|
||||
else
|
||||
state = GST_SCHEDULER_STATE_STOPPED;
|
||||
/* at this point it's possible that the scheduler state is
|
||||
* in error, we then return an error */
|
||||
if (osched->state == GST_OPT_SCHEDULER_STATE_ERROR) {
|
||||
state = GST_SCHEDULER_STATE_ERROR;
|
||||
break;
|
||||
}
|
||||
else {
|
||||
/* if chains were scheduled, return our current state */
|
||||
if (scheduled)
|
||||
state = GST_SCHEDULER_STATE (sched);
|
||||
/* if no chains were scheduled, we say we are stopped */
|
||||
else {
|
||||
state = GST_SCHEDULER_STATE_STOPPED;
|
||||
break;
|
||||
}
|
||||
}
|
||||
if (iterations > 0)
|
||||
iterations--;
|
||||
}
|
||||
|
||||
return state;
|
||||
|
|
@ -1134,3 +1292,50 @@ gst_opt_scheduler_show (GstScheduler *sched)
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_get_property (GObject *object, guint prop_id,
|
||||
GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstOptScheduler *osched;
|
||||
|
||||
g_return_if_fail (GST_IS_OPT_SCHEDULER (object));
|
||||
|
||||
osched = GST_OPT_SCHEDULER_CAST (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_USE_COTHREADS:
|
||||
g_value_set_boolean (value, osched->use_cothreads);
|
||||
break;
|
||||
case ARG_ITERATIONS:
|
||||
g_value_set_int (value, osched->iterations);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
gst_opt_scheduler_set_property (GObject *object, guint prop_id,
|
||||
const GValue *value, GParamSpec *pspec)
|
||||
{
|
||||
GstOptScheduler *osched;
|
||||
|
||||
g_return_if_fail (GST_IS_OPT_SCHEDULER (object));
|
||||
|
||||
osched = GST_OPT_SCHEDULER_CAST (object);
|
||||
|
||||
switch (prop_id) {
|
||||
case ARG_USE_COTHREADS:
|
||||
osched->use_cothreads = g_value_get_boolean (value);
|
||||
break;
|
||||
case ARG_ITERATIONS:
|
||||
osched->iterations = g_value_get_int (value);
|
||||
break;
|
||||
default:
|
||||
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue