ff_square_tab is always used with an offset; if this table is marked as hidden, the compiler can infer that it and therefore also ff_square_tab + 256 have a fixed offset from the code. This allows to avoid performing "+ 256" at runtime by baking it into the offset from the code to the table.
Signed-off-by: Andreas Rheinhardt <andreas.rheinha...@outlook.com> --- libavcodec/me_cmp.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/libavcodec/me_cmp.h b/libavcodec/me_cmp.h index c6de2d0061..90ea76c891 100644 --- a/libavcodec/me_cmp.h +++ b/libavcodec/me_cmp.h @@ -21,9 +21,11 @@ #include <stdint.h> +#include "libavutil/attributes_internal.h" + #include "avcodec.h" -extern const uint32_t ff_square_tab[512]; +extern const uint32_t attribute_visibility_hidden ff_square_tab[512]; /* minimum alignment rules ;) -- 2.34.1 _______________________________________________ ffmpeg-devel mailing list ffmpeg-devel@ffmpeg.org https://ffmpeg.org/mailman/listinfo/ffmpeg-devel To unsubscribe, visit link above, or email ffmpeg-devel-requ...@ffmpeg.org with subject "unsubscribe".
