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-rw-r--r--libavfilter/vf_alphamerge.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavfilter/vf_alphamerge.c b/libavfilter/vf_alphamerge.c
index ecc114c3f3..a8a8d56824 100644
--- a/libavfilter/vf_alphamerge.c
+++ b/libavfilter/vf_alphamerge.c
@@ -57,7 +57,7 @@ static int query_formats(AVFilterContext *ctx)
AV_PIX_FMT_NONE
};
static const enum AVPixelFormat alpha_fmts[] = { AV_PIX_FMT_GRAY8, AV_PIX_FMT_NONE };
- AVFilterFormats *main_formats, *alpha_formats;
+ AVFilterFormats *main_formats = NULL, *alpha_formats = NULL;
int ret;
if (!(main_formats = ff_make_format_list(main_fmts)) ||