/*****************************************************************************
* SubsdelayRecalculateDelays: Recalculate subtitles delay after changing
* one of the filter's parameters
*****************************************************************************/
static void SubsdelayRecalculateDelays( filter_t *p_filter )
{
for( subsdelay_heap_entry_t *p_curr = p_filter->p_sys->heap.p_head;
p_curr != NULL; p_curr = p_curr->p_next )
{
if( !p_curr->b_update_ephemer )
{
p_curr->i_new_stop = p_curr->p_source->i_start + SubsdelayEstimateDelay( p_filter, p_curr );
p_curr->b_update_stop = false;
}
}
SubsdelayEnforceDelayRules( p_filter );
}
/*****************************************************************************
* SubpicLocalUpdate: rewrite some of the subpicture parameters
*****************************************************************************/
static void SubpicLocalUpdate( subpicture_t* p_subpic, mtime_t i_ts )
{
subsdelay_heap_entry_t *p_entry;
subsdelay_heap_t *p_heap;
filter_t *p_filter;
int i_overlapping;
p_entry = p_subpic->updater.p_sys;
if( !p_entry || !p_entry->p_filter )
{
return;
}
p_filter = p_entry->p_filter;
p_heap = &p_filter->p_sys->heap;
SubsdelayHeapLock( p_heap );
if( p_entry->b_check_empty && p_subpic->p_region )
{
if( SubsdelayIsTextEmpty( p_subpic->p_region->psz_html ) ||
SubsdelayIsTextEmpty( p_subpic->p_region->psz_text ) )
{
/* remove empty subtitle */
p_subpic->b_ephemer = false;
p_subpic->i_stop = p_subpic->i_start;
SubsdelayHeapRemove( p_heap, p_entry );
SubsdelayHeapUnlock( p_heap );
return;
}
p_entry->b_check_empty = false;
}
if( p_entry->b_update_stop && !p_entry->b_update_ephemer )
{
p_entry->i_new_stop = p_entry->p_source->i_start + SubsdelayEstimateDelay( p_filter, p_entry );
p_entry->b_update_stop = false;
SubsdelayEnforceDelayRules( p_filter );
}
i_overlapping = SubsdelayHeapCountOverlap( p_heap, p_entry, i_ts );
p_subpic->i_alpha = SubsdelayCalculateAlpha( p_filter, i_overlapping, p_entry->p_source->i_alpha );
if( p_entry->b_update_position )
{
p_subpic->b_absolute = false;
if( p_subpic->p_region )
{
p_subpic->p_region->i_x = 0;
p_subpic->p_region->i_y = 10;
p_subpic->p_region->i_align = ( p_subpic->p_region->i_align & ( ~SUBPICTURE_ALIGN_MASK ) )
| SUBPICTURE_ALIGN_BOTTOM;
}
p_entry->b_update_position = false;
}
else if( p_entry->b_last_region_saved )
{
p_subpic->b_absolute = true;
if( p_subpic->p_region )
{
p_subpic->p_region->i_x = p_entry->i_last_region_x;
p_subpic->p_region->i_y = p_entry->i_last_region_y;
p_subpic->p_region->i_align = p_entry->i_last_region_align;
}
}
SubsdelayHeapUnlock( p_heap );
}
