[FFmpeg-cvslog] avfilter/avfiltergraph: Add assert to write down in machine readable form what is assumed about sample rates in swap_samplerates_on_filter ()
Michael Niedermayer
git at videolan.org
Sat Jan 21 03:52:24 EET 2017
ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sat Jan 21 01:35:52 2017 +0100| [5f2b360fc05bbb4f21e1247d1d9af303113d6c25] | committer: Michael Niedermayer
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 <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=5f2b360fc05bbb4f21e1247d1d9af303113d6c25
---
libavfilter/avfiltergraph.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavfilter/avfiltergraph.c b/libavfilter/avfiltergraph.c
index 97f242e..534c670 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;
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