[FFmpeg-devel] [PATCH 1/3] avfilter/ass: make sure the log level are in available range

[Clément Bœsch]

---
 libavfilter/vf_subtitles.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/libavfilter/vf_subtitles.c b/libavfilter/vf_subtitles.c
index 4fa1174..44273cb 100644
--- a/libavfilter/vf_subtitles.c
+++ b/libavfilter/vf_subtitles.c
@@ -80,7 +80,9 @@ static const int ass_libavfilter_log_level_map[] = {
 
 static void ass_log(int ass_level, const char *fmt, va_list args, void *ctx)
 {
-    int level = ass_libavfilter_log_level_map[ass_level];
+    const int ass_level_clip = av_clip(ass_level, 0,
+        FF_ARRAY_ELEMS(ass_libavfilter_log_level_map) - 1);
+    const int level = ass_libavfilter_log_level_map[ass_level_clip];
 
     av_vlog(ctx, level, fmt, args);
     av_log(ctx, level, "\n");
-- 
2.1.0