diff options
| -rw-r--r-- | libavfilter/formats.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/libavfilter/formats.c b/libavfilter/formats.c index ec7fca3817..58593fcce0 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -44,6 +44,8 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b) AVFilterFormats *ret; unsigned i, j, k = 0; + if (a == b) return a; + ret = av_mallocz(sizeof(AVFilterFormats)); /* merge list of formats */ |