From a77c2df5cc29293729d0c08e9641c1a56500c9f5 Mon Sep 17 00:00:00 2001
From: Paul B Mahol <onemda@gmail.com>
Date: Thu, 6 Sep 2018 13:43:20 +0200
Subject: [PATCH] avcodec/dnxhdenc: interlaced is not supported in DNxHR

Fixes #7263.
---
 libavcodec/dnxhdenc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/dnxhdenc.c b/libavcodec/dnxhdenc.c
index 5135eedfd6..9325f38baf 100644
--- a/libavcodec/dnxhdenc.c
+++ b/libavcodec/dnxhdenc.c
@@ -473,6 +473,12 @@ static av_cold int dnxhd_encode_init(AVCodecContext *avctx)
         ctx->m.mb_height /= 2;
     }
 
+    if (ctx->interlaced && ctx->profile != FF_PROFILE_DNXHD) {
+        av_log(avctx, AV_LOG_ERROR,
+               "Interlaced encoding is not supported for DNxHR profiles.\n");
+        return AVERROR(EINVAL);
+    }
+
     ctx->m.mb_num = ctx->m.mb_height * ctx->m.mb_width;
 
     if (ctx->cid_table->frame_size == DNXHD_VARIABLE) {