avfilter/vf_ocr: Use formats list instead of query function

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

libavfilter/vf_ocr.c

@@ -73,8 +73,6 @@ static av_cold int init(AVFilterContext *ctx)
     return 0;
 }
 
-static int query_formats(AVFilterContext *ctx)
-{
     static const enum AVPixelFormat pix_fmts[] = {
         AV_PIX_FMT_GRAY8,
         AV_PIX_FMT_YUV410P, AV_PIX_FMT_YUV411P,
@@ -87,9 +85,6 @@ static int query_formats(AVFilterContext *ctx)
         AV_PIX_FMT_NONE
     };
 
-    return ff_set_common_formats_from_list(ctx, pix_fmts);
-}
-
 static int filter_frame(AVFilterLink *inlink, AVFrame *in)
 {
     AVDictionary **metadata = &in->metadata;
@@ -150,5 +145,5 @@ const AVFilter ff_vf_ocr = {
     .uninit        = uninit,
     FILTER_INPUTS(ocr_inputs),
     FILTER_OUTPUTS(ocr_outputs),
-    FILTER_QUERY_FUNC(query_formats),
+    FILTER_PIXFMTS_ARRAY(pix_fmts),
 };