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libavutil/aes_internal.h
45 строк
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Rodger Combs
lavu/aes: add x86 AESNI optimizations
06 апр 2025, 02:46
06 апр 2025, 02:46
2ea3c51
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/* * copyright (c) 2015 rcombs * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVUTIL_AES_INTERNAL_H #define AVUTIL_AES_INTERNAL_H #include "mem_internal.h" #include <stdint.h> typedef union { uint64_t u64[2]; uint32_t u32[4]; uint8_t u8x4[4][4]; uint8_t u8[16]; } av_aes_block; typedef struct AVAES { // Note: round_key[16] is accessed in the init code, but this only // overwrites state, which does not matter (see also commit ba554c0). DECLARE_ALIGNED(16, av_aes_block, round_key)[15]; DECLARE_ALIGNED(16, av_aes_block, state)[2]; int rounds; void (*crypt)(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int rounds); } AVAES; void ff_init_aes_x86(AVAES *a, int decrypt); #endif /* AVUTIL_AES_INTERNAL_H */