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Diffstat (limited to 'libavfilter/avfiltergraph.c')
-rw-r--r--libavfilter/avfiltergraph.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index a859ecbde9..2e69cdd2d7 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -1280,6 +1280,8 @@ static void heap_bubble_up(AVFilterGraph *graph,
{
AVFilterLink **links = graph->sink_links;
+ av_assert0(index >= 0);
+
while (index) {
int parent = (index - 1) >> 1;
if (links[parent]->current_pts >= link->current_pts)
@@ -1297,6 +1299,8 @@ static void heap_bubble_down(AVFilterGraph *graph,
{
AVFilterLink **links = graph->sink_links;
+ av_assert0(index >= 0);
+
while (1) {
int child = 2 * index + 1;
if (child >= graph->sink_links_count)