[FFmpeg-devel] [PATCH v2 04/16] avcodec/vvcdec: fix uninitialized last element of xxx_bd and ctb_to_xxx_bd arrays

[Nuo Mi]

From: Frank Plowman <post at frankplowman.com>

see "6.5.1 CTB raster scanning, tile scanning, and subpicture scanning processes"

Co-authored-by: Nuo Mi <nuomi2021 at gmail.com>
---
 libavcodec/vvc/vvc_ps.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libavcodec/vvc/vvc_ps.c b/libavcodec/vvc/vvc_ps.c
index 7972803da6..3e7c0b4f5b 100644
--- a/libavcodec/vvc/vvc_ps.c
+++ b/libavcodec/vvc/vvc_ps.c
@@ -290,6 +290,7 @@ static int pps_bd(VVCPPS *pps)
         for (int k = pps->col_bd[i]; k < j; k++)
             pps->ctb_to_col_bd[k] = pps->col_bd[i];
     }
+    pps->col_bd[r->num_tile_columns] = pps->ctb_to_col_bd[pps->ctb_width] = pps->ctb_width;
 
     for (int i = 0, j = 0; i < r->num_tile_rows; i++) {
         pps->row_bd[i] = j;
@@ -297,6 +298,8 @@ static int pps_bd(VVCPPS *pps)
         for (int k = pps->row_bd[i]; k < j; k++)
             pps->ctb_to_row_bd[k] = pps->row_bd[i];
     }
+    pps->row_bd[r->num_tile_rows] = pps->ctb_to_row_bd[pps->ctb_height] = pps->ctb_height;
+
     return 0;
 }
 
-- 
2.25.1