From a469d29c0825b43ea7746708ab06568a64616aff Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Cl=C3=A9ment=20B=C5=93sch?= <u@pkh.me>
Date: Tue, 18 Aug 2020 17:22:06 +0200
Subject: [PATCH] avcodec/dvbsubdec: error out on unsupported coding methods

---
 libavcodec/dvbsubdec.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/dvbsubdec.c b/libavcodec/dvbsubdec.c
index 1b75a2a46b..9bee33e4a2 100644
--- a/libavcodec/dvbsubdec.c
+++ b/libavcodec/dvbsubdec.c
@@ -1034,10 +1034,13 @@ static int dvbsub_parse_object_segment(AVCodecContext *avctx,
         }
     } else if (coding_method == 1) {
         avpriv_report_missing_feature(avctx, "coded as a string of characters");
+        return AVERROR_PATCHWELCOME;
     } else if (coding_method == 2) {
         avpriv_report_missing_feature(avctx, "progressive coding of pixels");
+        return AVERROR_PATCHWELCOME;
     } else {
         av_log(avctx, AV_LOG_ERROR, "Unknown object coding %d\n", coding_method);
+        return AVERROR_INVALIDDATA;
     }
 
     return 0;