From: Frank Plowman <post@frankplowman.com>
To: ffmpeg-devel@ffmpeg.org
Cc: Frank Plowman <post@frankplowman.com>, nuomi2021@gmail.com
Subject: [FFmpeg-devel] [PATCH] lavc/vvc: Stricter bound on pps_exp_slice_height_in_ctus_minus1
Date: Sun, 2 Mar 2025 12:12:38 +0000
Message-ID: <20250302121321.16723-1-post@frankplowman.com> (raw)
When pps_num_exp_slices_in_tile[i] is nonzero, the ith tile is made up
of pps_num_exp_slices_in_tile[i] slices stacked atop one another, where
the height of the jth slice in the ith tile is given by
pps_exp_slice_height_in_ctus_minus1[i][j]. The sum of the heights of
the slices in the tile should not exceed the height of the tile itself.
Signed-off-by: Frank Plowman <post@frankplowman.com>
---
libavcodec/cbs_h266_syntax_template.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/cbs_h266_syntax_template.c b/libavcodec/cbs_h266_syntax_template.c
index b84f3e29db..9f3ad0bb67 100644
--- a/libavcodec/cbs_h266_syntax_template.c
+++ b/libavcodec/cbs_h266_syntax_template.c
@@ -2020,7 +2020,7 @@ static int FUNC(pps) (CodedBitstreamContext *ctx, RWContext *rw,
for (j = 0; j < current->pps_num_exp_slices_in_tile[i];
j++) {
ues(pps_exp_slice_height_in_ctus_minus1[i][j], 0,
- current->row_height_val[tile_y] - 1, 2,
+ remaining_height_in_ctbs_y - 1, 2,
i, j);
slice_height_in_ctus =
current->
--
2.47.0
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