vf_scale: add endianness conversion pixel format in query_formats

libavfilter/vf_scale.c

@@ -122,7 +122,8 @@ static int query_formats(AVFilterContext *ctx)
     if (ctx->inputs[0]) {
         formats = NULL;
         for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++)
-            if (   sws_isSupportedInput(pix_fmt)
+            if ((sws_isSupportedInput(pix_fmt) ||
+                 sws_isSupportedEndiannessConversion(pix_fmt))
                 && (ret = ff_add_format(&formats, pix_fmt)) < 0) {
                 ff_formats_unref(&formats);
                 return ret;
@@ -132,7 +133,8 @@ static int query_formats(AVFilterContext *ctx)
     if (ctx->outputs[0]) {
         formats = NULL;
         for (pix_fmt = 0; pix_fmt < AV_PIX_FMT_NB; pix_fmt++)
-            if (    sws_isSupportedOutput(pix_fmt)
+            if ((sws_isSupportedOutput(pix_fmt) ||
+                 sws_isSupportedEndiannessConversion(pix_fmt))
                 && (ret = ff_add_format(&formats, pix_fmt)) < 0) {
                 ff_formats_unref(&formats);
                 return ret;