[FFmpeg-devel] [PATCH v2 2/2] avcodec/av1dec: Return error for unsupported tile list OBU - fei.w.wang-at-intel.com

From: fei.w.wang-at-intel.com@ffmpeg.org
To: ffmpeg-devel@ffmpeg.org
Cc: fei.w.wang@intel.com
Subject: [FFmpeg-devel] [PATCH v2 2/2] avcodec/av1dec: Return error for unsupported tile list OBU
Date: Thu, 28 Dec 2023 09:24:03 +0800
Message-ID: <20231228012403.1284848-2-fei.w.wang@intel.com> (raw)
In-Reply-To: <20231228012403.1284848-1-fei.w.wang@intel.com>

From: Fei Wang <fei.w.wang@intel.com>

Otherwise decoding maybe successful but output result is incorrect.

Signed-off-by: Fei Wang <fei.w.wang@intel.com>
---
 libavcodec/av1dec.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/libavcodec/av1dec.c b/libavcodec/av1dec.c
index 198fe75aa0..41746b1f11 100644
--- a/libavcodec/av1dec.c
+++ b/libavcodec/av1dec.c
@@ -1202,6 +1202,12 @@ static int av1_receive_frame_internal(AVCodecContext *avctx, AVFrame *frame)
 
         av_log(avctx, AV_LOG_DEBUG, "OBU idx:%d, type:%d, content available:%d.\n", i, unit->type, !!obu);
 
+        if (unit->type == AV1_OBU_TILE_LIST) {
+            av_log(avctx, AV_LOG_ERROR, "Large scale tile decoding is unsupported.\n");
+            ret = AVERROR_PATCHWELCOME;
+            goto end;
+        }
+
         if (!obu)
             continue;
 
-- 
2.25.1

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