diff --git a/libavcodec/imgconvert.c b/libavcodec/imgconvert.c
index 525ae1b61f04ed20389d87d1f90b7b6d4dbd0ba2..5e7f1fd570b7fa2a5f22ed5117f8c445b12803d8 100644
--- a/libavcodec/imgconvert.c
+++ b/libavcodec/imgconvert.c
@@ -1175,6 +1175,7 @@ int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
     int i;
 
     if (pix_fmt != PIX_FMT_YUV420P &&
+        pix_fmt != PIX_FMT_YUVJ420P &&
         pix_fmt != PIX_FMT_YUV422P &&
         pix_fmt != PIX_FMT_YUV444P &&
         pix_fmt != PIX_FMT_YUV411P &&
@@ -1186,6 +1187,7 @@ int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
     for(i=0;i<3;i++) {
         if (i == 1) {
             switch(pix_fmt) {
+            case PIX_FMT_YUVJ420P:
             case PIX_FMT_YUV420P:
                 width >>= 1;
                 height >>= 1;