Hi!
Attached patch fixes #6255.
Please comment, Carl Eugen
From 1c249440c62271565be12112f321ad9aa6a922fb Mon Sep 17 00:00:00 2001
From: Carl Eugen Hoyos <ceho...@ag.or.at>
Date: Fri, 24 Mar 2017 10:38:22 +0100
Subject: [PATCH] lavc/h264_ps: Check that chroma_location is within limits.
Fixes ticket #6255.
---
libavcodec/h264_ps.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/libavcodec/h264_ps.c b/libavcodec/h264_ps.c
index b78ad25..55e6a6e 100644
--- a/libavcodec/h264_ps.c
+++ b/libavcodec/h264_ps.c
@@ -181,6 +181,8 @@ static inline int decode_vui_parameters(GetBitContext *gb,
AVCodecContext *avctx
if (get_bits1(gb)) {
/* chroma_sample_location_type_top_field */
avctx->chroma_sample_location = get_ue_golomb(gb) + 1;
+ if (avctx->chroma_sample_location >= AVCHROMA_LOC_NB)
+ avctx->chroma_sample_location = AVCHROMA_LOC_UNSPECIFIED;
get_ue_golomb(gb); /* chroma_sample_location_type_bottom_field */
}
--
1.7.10.4
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