[FFmpeg-devel] [PATCH] avcodec/vvc/data: Mark tables as hidden (PR #20510)

[mkver via ffmpeg-devel <ffmpeg-devel@ffmpeg.org>]

PR #20510 opened by mkver
URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20510
Patch URL: https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/20510.patch

This allows compilers to optimize accesses like
ff_vvc_diag_scan_x[2][2][x] by baking the offset derived
from [2][2] into the relocation (so that it is performed
at link-time).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>


>From 6aea9faf166f8e793361d3997e4475c02abac52a Mon Sep 17 00:00:00 2001
From: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
Date: Sat, 13 Sep 2025 05:00:32 +0200
Subject: [PATCH] avcodec/vvc/data: Mark tables as hidden

This allows compilers to optimize accesses like
ff_vvc_diag_scan_x[2][2][x] by baking the offset derived
from [2][2] into the relocation (so that it is performed
at link-time).

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
---
 libavcodec/vvc/data.h | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libavcodec/vvc/data.h b/libavcodec/vvc/data.h
index a0512e626b..a28150484d 100644
--- a/libavcodec/vvc/data.h
+++ b/libavcodec/vvc/data.h
@@ -23,6 +23,9 @@
 
 #include <stdint.h>
 
+#include "libavutil/attributes_internal.h"
+
+FF_VISIBILITY_PUSH_HIDDEN
 extern const uint8_t ff_vvc_diag_scan_x[5][5][16 * 16];
 extern const uint8_t ff_vvc_diag_scan_y[5][5][16 * 16];
 
@@ -80,5 +83,6 @@ extern const uint8_t ff_vvc_alf_class_to_filt_map[16][25];
 extern const uint8_t ff_vvc_alf_aps_class_to_filt_map[25];
 
 const uint8_t* ff_vvc_get_mip_matrix(const int size_id, const int mode_idx);
+FF_VISIBILITY_POP_HIDDEN
 
 #endif /* AVCODEC_VVC_DATA_H */
-- 
2.49.1

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