@@ -147,7 +147,7 @@ static void filter(AVFilterContext *ctx, AVFilterBufferRef *dstpic,

         int refs = yadif->cur->linesize[i];

         int df = (yadif->csp->comp[i].depth_minus1+1) / 8;

-        if (i) {

+        if (i == 1 || i == 2) {

         /* Why is this not part of the per-plane description thing? */

             w >>= yadif->csp->log2_chroma_w;

             h >>= yadif->csp->log2_chroma_h;

@@ -357,6 +357,7 @@ static int query_formats(AVFilterContext *ctx)

         AV_NE( PIX_FMT_YUV420P16BE, PIX_FMT_YUV420P16LE ),

         AV_NE( PIX_FMT_YUV422P16BE, PIX_FMT_YUV422P16LE ),

         AV_NE( PIX_FMT_YUV444P16BE, PIX_FMT_YUV444P16LE ),

+        PIX_FMT_YUVA420P,

         PIX_FMT_NONE

     };