---
libavfilter/avfiltergraph.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index b9f0164..c147c3b 100644
--- a/libavfilter/avfiltergraph.c
+++ b/libavfilter/avfiltergraph.c
@@ -29,6 +29,7 @@
#include "internal.h"
#include "libavutil/audioconvert.h"
+#include "libavutil/avassert.h"
#include "libavutil/log.h"
static const AVClass filtergraph_class = {
@@ -497,7 +498,7 @@ static void swap_sample_fmts_on_filter(AVFilterContext
*filter)
for (i = 0; i < filter->nb_outputs; i++) {
AVFilterLink *outlink = filter->outputs[i];
- int best_idx, best_score = INT_MIN;
+ int best_idx = -1, best_score = INT_MIN;
if (outlink->type != AVMEDIA_TYPE_AUDIO ||
outlink->in_formats->format_count < 2)
@@ -530,6 +531,7 @@ static void swap_sample_fmts_on_filter(AVFilterContext
*filter)
best_idx = j;
}
}
+ av_assert0(best_idx >= 0);
FFSWAP(int, outlink->in_formats->formats[0],
outlink->in_formats->formats[best_idx]);
}
--
1.7.10
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