ffmpeg | branch: master | Anton Khirnov <an...@khirnov.net> | Wed Jun 26 
14:41:41 2024 +0200| [e939f02ce67f2af570115214d2d5a6d93501dd80] | committer: 
Anton Khirnov

lavc/hevcdec: improve check for PPS changing between slices

Compare actual PPS objects rather than just PPS ID, as the former might
change while the latter stays the same.

Reported-by: Michael Niedermayer <mich...@niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e939f02ce67f2af570115214d2d5a6d93501dd80
---

 libavcodec/hevc/hevcdec.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/hevc/hevcdec.c b/libavcodec/hevc/hevcdec.c
index 01d32086f2..fd143cddab 100644
--- a/libavcodec/hevc/hevcdec.c
+++ b/libavcodec/hevc/hevcdec.c
@@ -603,7 +603,7 @@ static int hls_slice_header(SliceHeader *sh, const 
HEVCContext *s, GetBitContext
         av_log(s->avctx, AV_LOG_ERROR, "PPS id out of range: %d\n", pps_id);
         return AVERROR_INVALIDDATA;
     }
-    if (!sh->first_slice_in_pic_flag && pps_id != sh->pps_id) {
+    if (!sh->first_slice_in_pic_flag && s->ps.pps_list[pps_id] != s->pps) {
         av_log(s->avctx, AV_LOG_ERROR, "PPS changed between slices.\n");
         return AVERROR_INVALIDDATA;
     }

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