sps_log2_ctu_size_minus5 is between 0 and 2, with 3 reserved for future use. The VVC decoder allows sps_log2_ctu_size_minus5 to be 3, and so ctb_size_y should be at least 16 bits to prevent overflows. An alternative patch would leave sps_log2_ctu_size_minus5 as 8 bits and disallow sps_log2_ctu_size_minus5 = 3.
Signed-off-by: Frank Plowman <p...@frankplowman.com> --- libavcodec/vvc/ps.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vvc/ps.h b/libavcodec/vvc/ps.h index 78f1687fef..6656a06320 100644 --- a/libavcodec/vvc/ps.h +++ b/libavcodec/vvc/ps.h @@ -69,7 +69,7 @@ typedef struct VVCSPS { uint8_t bit_depth; ///< BitDepth uint8_t qp_bd_offset; ///< QpBdOffset uint8_t ctb_log2_size_y; ///< CtbLog2SizeY - uint8_t ctb_size_y; ///< CtbSizeY + uint16_t ctb_size_y; ///< CtbSizeY uint8_t min_cb_log2_size_y; ///< MinCbLog2SizeY uint8_t min_cb_size_y; ///< MinCbSizeY uint8_t max_tb_size_y; ///< MaxTbSizeY -- 2.44.0 _______________________________________________ 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".