FFmpeg
aes_internal.h
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1 /*
2  * copyright (c) 2015 Rodger Combs <rodger.combs@gmail.com>
3  *
4  * This file is part of FFmpeg.
5  *
6  * FFmpeg is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * FFmpeg is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with FFmpeg; if not, write to the Free Software
18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19  */
20 
21 #ifndef AVUTIL_AES_INTERNAL_H
22 #define AVUTIL_AES_INTERNAL_H
23 
24 #include "mem.h"
25 #include <stdint.h>
26 
27 typedef union {
28  uint64_t u64[2];
29  uint32_t u32[4];
30  uint8_t u8x4[4][4];
31  uint8_t u8[16];
32 } av_aes_block;
33 
34 typedef struct AVAES {
35  // Note: round_key[16] is accessed in the init code, but this only
36  // overwrites state, which does not matter (see also commit ba554c0).
37  DECLARE_ALIGNED(16, av_aes_block, round_key)[15];
39  int rounds;
40  void (*crypt)(struct AVAES *a, uint8_t *dst, const uint8_t *src, int count, uint8_t *iv, int rounds);
41 } AVAES;
42 
43 #endif /* AVUTIL_AES_INTERNAL_H */
Memory handling functions.
The reader does not expect b to be semantically here and if the code is changed by maybe adding a a division or other the signedness will almost certainly be mistaken To avoid this confusion a new type was SUINT is the C unsigned type but it holds a signed int to use the same example SUINT a
Definition: undefined.txt:36
#define src
Definition: vp8dsp.c:254
uint8_t
#define DECLARE_ALIGNED(n, t, v)
Declare a variable that is aligned in memory.
Definition: mem.h:112
static struct @321 state
GLsizei count
Definition: opengl_enc.c:108
typedef void(APIENTRY *FF_PFNGLACTIVETEXTUREPROC)(GLenum texture)
int rounds
Definition: aes_internal.h:39