From 5f2b360fc05bbb4f21e1247d1d9af303113d6c25 Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Sat, 21 Jan 2017 01:35:52 +0100 Subject: [PATCH] avfilter/avfiltergraph: Add assert to write down in machine readable form what is assumed about sample rates in swap_samplerates_on_filter() Fixes CID1397292 Signed-off-by: Michael Niedermayer --- libavfilter/avfiltergraph.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c index 97f242ebec..534c6701a8 100644 --- a/libavfilter/avfiltergraph.c +++ b/libavfilter/avfiltergraph.c @@ -876,6 +876,8 @@ static void swap_samplerates_on_filter(AVFilterContext *filter) for (j = 0; j < outlink->in_samplerates->nb_formats; j++) { int diff = abs(sample_rate - outlink->in_samplerates->formats[j]); + av_assert0(diff < INT_MAX); // This would lead to the use of uninitialized best_diff but is only possible with invalid sample rates + if (diff < best_diff) { best_diff = diff; best_idx = j;