dnxhdenc: do not select 4:4:4 profiles

The encoder can only deal with 4:2:2.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/dnxhddata.c

@@ -1111,7 +1111,7 @@ int ff_dnxhd_find_cid(AVCodecContext *avctx, int bit_depth)
         int interlaced = cid->flags & DNXHD_INTERLACED ? 1 : 0;
         if (cid->width == avctx->width && cid->height == avctx->height &&
             interlaced == !!(avctx->flags & AV_CODEC_FLAG_INTERLACED_DCT) &&
-            cid->bit_depth == bit_depth) {
+            !(cid->flags & DNXHD_444) && cid->bit_depth == bit_depth) {
             for (j = 0; j < FF_ARRAY_ELEMS(cid->bit_rates); j++) {
                 if (cid->bit_rates[j] == mbs)
                     return cid->cid;