avfilter/vf_zscale: fix typo

[ffmpeg] / libavfilter / vf_alphamerge.c

diff --git a/libavfilter/vf_alphamerge.c b/libavfilter/vf_alphamerge.c
index a478de527a887116fd80b10899984f9ade65cc84..8a1ca22da59ec809ead4de5ad8be6a1b016906dc 100644 (file)
--- a/libavfilter/vf_alphamerge.c
+++ b/libavfilter/vf_alphamerge.c
@@ -57,11 +57,16 @@ 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 = ff_make_format_list(main_fmts);
-    AVFilterFormats *alpha_formats = ff_make_format_list(alpha_fmts);
-    ff_formats_ref(main_formats, &ctx->inputs[0]->out_formats);
-    ff_formats_ref(alpha_formats, &ctx->inputs[1]->out_formats);
-    ff_formats_ref(main_formats, &ctx->outputs[0]->in_formats);
+    AVFilterFormats *main_formats, *alpha_formats;
+    int ret;
+
+    if (!(main_formats = ff_make_format_list(main_fmts)) ||
+        !(alpha_formats = ff_make_format_list(alpha_fmts)))
+        return AVERROR(ENOMEM);
+    if ((ret = ff_formats_ref(main_formats , &ctx->inputs[0]->out_formats)) < 0 ||
+        (ret = ff_formats_ref(alpha_formats, &ctx->inputs[1]->out_formats)) < 0 ||
+        (ret = ff_formats_ref(main_formats , &ctx->outputs[0]->in_formats)) < 0)
+        return ret;
     return 0;
 }