@@ -643,6 +643,15 @@ static int init_image(TiffContext *s, ThreadFrame *frame)

                s->bpp, s->bppcount);

         return AVERROR_INVALIDDATA;

     }

+

+    if (s->photometric == TIFF_PHOTOMETRIC_YCBCR) {

+        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(s->avctx->pix_fmt);

+        if((desc->flags & AV_PIX_FMT_FLAG_RGB) || desc->nb_components < 3) {

+            av_log(s->avctx, AV_LOG_ERROR, "Unsupported YCbCr variant\n");

+            return AVERROR_INVALIDDATA;

+        }

+    }

+

     if (s->width != s->avctx->width || s->height != s->avctx->height) {

         ret = ff_set_dimensions(s->avctx, s->width, s->height);

         if (ret < 0)