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timeline: Add from first element with wanted start to the move context

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We need to iterate over the previous element from trackelement_iter
to find the first element that is at the moving point. Several
elements can have the same start as the one initiating the move,
and we need to take all of them into account.

Fixes https://phabricator.freedesktop.org/T7819
This commit is contained in:
Thibault Saunier 2017-08-18 23:39:38 -03:00
parent 6e2354bd79
commit 959a3c70b0
1 changed files with 20 additions and 3 deletions
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23
ges/ges-timeline.c
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@ -1378,7 +1378,7 @@ ges_move_context_set_objects (GESTimeline * timeline, GESTrackElement * obj,
TrackObjIters *iters;
GESTrackElement *tmptrackelement;
guint64 start, tmpend, moving_point = _START (obj);
GSequenceIter *iter, *trackelement_iter;
GSequenceIter *iter, *trackelement_iter, *tmpiter;
MoveContext *mv_ctx = &timeline->priv->movecontext;
iters = g_hash_table_lookup (timeline->priv->obj_iters, obj);
@ -1423,9 +1423,26 @@ ges_move_context_set_objects (GESTimeline * timeline, GESTrackElement * obj,
case GES_EDGE_NONE: /* In this case only works for ripple */
mv_ctx->max_trim_pos = G_MAXUINT64;
iter = trackelement_iter;
tmpiter = g_sequence_iter_prev (iter);
/* Make sure to get the first TimelineElement starting at
* @moving_point */
while (tmpiter && !g_sequence_iter_is_end (tmpiter)) {
tmptrackelement = GES_TRACK_ELEMENT (g_sequence_get (iter));
if (GES_TIMELINE_ELEMENT_START (tmptrackelement) != moving_point)
break;
iter = tmpiter;
tmpiter = g_sequence_iter_prev (tmpiter);
if (g_sequence_iter_is_begin (tmpiter))
break;
}
/* Look for folowing objects */
for (iter = g_sequence_iter_next (trackelement_iter);
iter && !g_sequence_iter_is_end (iter);
for (; iter && !g_sequence_iter_is_end (iter);
iter = g_sequence_iter_next (iter)) {
tmptrackelement = GES_TRACK_ELEMENT (g_sequence_get (iter));