diff options
| -rw-r--r-- | libavfilter/formats.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavfilter/formats.c b/libavfilter/formats.c index 9d048d7be2..206eff5587 100644 --- a/libavfilter/formats.c +++ b/libavfilter/formats.c @@ -45,6 +45,9 @@ AVFilterFormats *avfilter_merge_formats(AVFilterFormats *a, AVFilterFormats *b) AVFilterFormats *ret; unsigned i, j, k = 0, m_count; + if (a == b) + return a; + ret = av_mallocz(sizeof(*ret)); /* merge list of formats */ |