@@ -108,17 +108,17 @@ AVFilterFormats *ff_merge_formats(AVFilterFormats *a, AVFilterFormats *b,

        To avoid that, pretend that there are no common formats to force the

        insertion of a conversion filter. */

     if (type == AVMEDIA_TYPE_VIDEO)

-    for (i = 0; i < a->format_count; i++)

-        for (j = 0; j < b->format_count; j++) {

-            const AVPixFmtDescriptor *adesc = av_pix_fmt_desc_get(a->formats[i]);

-            const AVPixFmtDescriptor *bdesc = av_pix_fmt_desc_get(b->formats[j]);

-            alpha2 |= adesc->flags & bdesc->flags & PIX_FMT_ALPHA;

-            chroma2|= adesc->nb_components > 1 && bdesc->nb_components > 1;

-            if (a->formats[i] == b->formats[j]) {

-                alpha1 |= adesc->flags & PIX_FMT_ALPHA;

-                chroma1|= adesc->nb_components > 1;

+        for (i = 0; i < a->format_count; i++)

+            for (j = 0; j < b->format_count; j++) {

+                const AVPixFmtDescriptor *adesc = av_pix_fmt_desc_get(a->formats[i]);

+                const AVPixFmtDescriptor *bdesc = av_pix_fmt_desc_get(b->formats[j]);

+                alpha2 |= adesc->flags & bdesc->flags & PIX_FMT_ALPHA;

+                chroma2|= adesc->nb_components > 1 && bdesc->nb_components > 1;

+                if (a->formats[i] == b->formats[j]) {

+                    alpha1 |= adesc->flags & PIX_FMT_ALPHA;

+                    chroma1|= adesc->nb_components > 1;

+                }

             }

-        }

     // If chroma or alpha can be lost through merging then do not merge

     if (alpha2 > alpha1 || chroma2 > chroma1)