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Git pushed a commit to branch release/7.1
in repository ffmpeg.

commit e8fc0e76b9d851d506ce0cb2808822f648e47713
Author:     Nuo Mi <[email protected]>
AuthorDate: Sat Nov 23 17:32:32 2024 +0800
Commit:     Frank Plowman <[email protected]>
CommitDate: Wed Jun 10 15:12:20 2026 +0100

    avcodec/vvcdec: ensure every CTU belongs to a slice
    
    According to section 6.3.3 "Spatial or component-wise partitionings,"
    CTUs should fully cover slices with no overlaps, gaps, or additions.
    No overlaps are ensured by task_init_parse.
    No gaps and no additions are ensured by this patch.
    
    Co-authored-by: Frank Plowman <[email protected]>
    (cherry picked from commit 5c5a08ecb53b1b9d97512ce398fa395c3fb8c1a8)
---
 libavcodec/vvc/thread.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libavcodec/vvc/thread.c b/libavcodec/vvc/thread.c
index 86a7753c6a..7ff759d889 100644
--- a/libavcodec/vvc/thread.c
+++ b/libavcodec/vvc/thread.c
@@ -822,6 +822,13 @@ int ff_vvc_frame_submit(VVCContext *s, VVCFrameContext *fc)
             }
         }
     }
+    for (int rs = 0; rs < ft->ctu_count; rs++) {
+        const VVCTask *t = ft->tasks + rs;
+        if (!t->sc) {
+            av_log(s->avctx, AV_LOG_ERROR, "frame %5d, CTU(%d, %d) not belong 
to any slice\r\n", (int)fc->decode_order, t->rx, t->ry);
+            return AVERROR_INVALIDDATA;
+        }
+    }
     frame_thread_add_score(s, ft, 0, 0, VVC_TASK_STAGE_INIT);
 
     return 0;

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