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composition: Commit all values before initializing the pipeline

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This commit is contained in:
Thibault Saunier 2014-08-12 14:35:09 +02:00
parent f5073e4e58
commit aa1ba05895
1 changed files with 77 additions and 63 deletions
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140
gnl/gnlcomposition.c
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@ -535,6 +535,78 @@ _add_seek_gsource (GnlComposition * comp, GstEvent * event)
(GDestroyNotify) _free_seek_data, G_PRIORITY_DEFAULT);
}
/* Must be called with OBJECTS_LOCK taken */
static void
_process_pending_entries (GnlComposition * comp)
{
GnlObject *object;
GHashTableIter iter;
gboolean deactivated_stack = FALSE;
GnlCompositionPrivate *priv = comp->priv;
g_hash_table_iter_init (&iter, priv->pending_io);
while (g_hash_table_iter_next (&iter, (gpointer *) & object, NULL)) {
if (g_hash_table_contains (priv->objects_hash, object)) {
if (GST_OBJECT_PARENT (object) == GST_OBJECT_CAST (priv->current_bin) &&
deactivated_stack == FALSE) {
deactivated_stack = TRUE;
_deactivate_stack (comp, TRUE);
}
_gnl_composition_remove_object (comp, object);
} else {
_gnl_composition_add_object (comp, object);
}
}
g_hash_table_remove_all (priv->pending_io);
}
static inline gboolean
_commit_values (GnlComposition * comp)
{
GList *tmp;
gboolean commited = FALSE;
GnlCompositionPrivate *priv = comp->priv;
for (tmp = priv->objects_start; tmp; tmp = tmp->next) {
if (gnl_object_commit (tmp->data, TRUE))
commited = TRUE;
}
GST_DEBUG_OBJECT (comp, "Linking up commit vmethod");
commited |= GNL_OBJECT_CLASS (parent_class)->commit (GNL_OBJECT (comp), TRUE);
return commited;
}
static gboolean
_commit_all_values (GnlComposition * comp)
{
GnlCompositionPrivate *priv = comp->priv;
priv->next_base_time = 0;
GST_ERROR_OBJECT (comp, "Commiting state");
_process_pending_entries (comp);
if (_commit_values (comp) == FALSE) {
return FALSE;;
}
/* The topology of the composition might have changed, update the lists */
priv->objects_start = g_list_sort
(priv->objects_start, (GCompareFunc) objects_start_compare);
priv->objects_stop = g_list_sort
(priv->objects_stop, (GCompareFunc) objects_stop_compare);
return TRUE;
}
static gboolean
_initialize_stack_func (UpdateCompositionData * ucompo)
@ -542,6 +614,8 @@ _initialize_stack_func (UpdateCompositionData * ucompo)
GnlComposition *comp = ucompo->comp;
GnlCompositionPrivate *priv = comp->priv;
_commit_all_values (comp);
_post_start_composition_update (comp, ucompo->seqnum, ucompo->reason);
comp->priv->next_base_time = 0;
/* set ghostpad target */
@ -1909,8 +1983,7 @@ _set_current_bin_to_ready (GnlComposition * comp, gboolean flush_downstream)
gst_element_set_state (priv->current_bin, GST_STATE_READY);
if (ptarget) {
if (flush_downstream)
{
if (flush_downstream) {
flush_event = gst_event_new_flush_stop (TRUE);
gst_event_set_seqnum (flush_event, priv->flush_seqnum);
gst_pad_push_event (ptarget, flush_event);
@ -1923,36 +1996,6 @@ _set_current_bin_to_ready (GnlComposition * comp, gboolean flush_downstream)
comp->priv->tearing_down_stack = FALSE;
}
/* Must be called with OBJECTS_LOCK taken */
static void
_process_pending_entries (GnlComposition * comp)
{
GnlObject *object;
GHashTableIter iter;
gboolean deactivated_stack = FALSE;
GnlCompositionPrivate *priv = comp->priv;
g_hash_table_iter_init (&iter, priv->pending_io);
while (g_hash_table_iter_next (&iter, (gpointer *) & object, NULL)) {
if (g_hash_table_contains (priv->objects_hash, object)) {
if (GST_OBJECT_PARENT (object) == GST_OBJECT_CAST (priv->current_bin) &&
deactivated_stack == FALSE) {
deactivated_stack = TRUE;
_deactivate_stack (comp, TRUE);
}
_gnl_composition_remove_object (comp, object);
} else {
_gnl_composition_add_object (comp, object);
}
}
g_hash_table_remove_all (priv->pending_io);
}
static gboolean
_emit_commited_signal_func (GnlComposition * comp)
{
@ -2028,24 +2071,6 @@ _is_update_done_cb (GstPad * pad, GstPadProbeInfo * info,
return GST_PAD_PROBE_OK;
}
static inline gboolean
_commit_values (GnlComposition * comp)
{
GList *tmp;
gboolean commited = FALSE;
GnlCompositionPrivate *priv = comp->priv;
for (tmp = priv->objects_start; tmp; tmp = tmp->next) {
if (gnl_object_commit (tmp->data, TRUE))
commited = TRUE;
}
GST_DEBUG_OBJECT (comp, "Linking up commit vmethod");
commited |= GNL_OBJECT_CLASS (parent_class)->commit (GNL_OBJECT (comp), TRUE);
return commited;
}
static gboolean
_commit_func (UpdateCompositionData * ucompo)
{
@ -2055,17 +2080,12 @@ _commit_func (UpdateCompositionData * ucompo)
_post_start_composition_update (comp, ucompo->seqnum, ucompo->reason);
priv->next_base_time = 0;
GST_INFO_OBJECT (comp, "Commiting state");
/* Get current so that it represent the duration it was
* before commiting children */
curpos = get_current_position (comp);
_process_pending_entries (comp);
if (_commit_values (comp) == FALSE) {
GST_INFO_OBJECT (comp, "Nothing to commit, leaving");
if (!_commit_all_values (comp)) {
GST_DEUBG_OBJECT (comp, "Nothing to commit, leaving");
g_signal_emit (comp, _signals[COMMITED_SIGNAL], 0, FALSE);
_post_start_composition_update_done (comp, ucompo->seqnum, ucompo->reason);
@ -2073,12 +2093,6 @@ _commit_func (UpdateCompositionData * ucompo)
return G_SOURCE_REMOVE;
}
/* The topology of the composition might have changed, update the lists */
priv->objects_start = g_list_sort
(priv->objects_start, (GCompareFunc) objects_start_compare);
priv->objects_stop = g_list_sort
(priv->objects_stop, (GCompareFunc) objects_stop_compare);
if (priv->initialized == FALSE) {
GST_DEBUG_OBJECT (comp, "Not initialized yet, just updating values");