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blowfish: add av_blowfish_alloc()

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Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This commit is contained in:
James Almer 2015-07-28 16:57:46 -03:00 committed by Anton Khirnov
parent cd4d9df227
commit 7a7df34c91
4 changed files with 32 additions and 1 deletions
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3
doc/APIchanges
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@ -13,6 +13,9 @@ libavutil: 2014-08-09
API changes, most recent first:
2015-xx-xx - lavu 54.17.0
xxxxxxx - Add av_blowfish_alloc().
2015-07-29 - 7e38340 - lavu 54.16.0 - hmac.h
Add AV_HMAC_SHA224 and AV_HMAC_SHA256.

15
libavutil/blowfish.c
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@ -24,8 +24,18 @@
#include "avutil.h"
#include "common.h"
#include "intreadwrite.h"
#include "mem.h"
#include "blowfish.h"
#if !FF_API_CRYPTO_CONTEXT
#define AV_BF_ROUNDS 16
struct AVBlowfish {
uint32_t p[AV_BF_ROUNDS + 2];
uint32_t s[4][256];
};
#endif
static const uint32_t orig_p[AV_BF_ROUNDS + 2] = {
0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344,
0xA4093822, 0x299F31D0, 0x082EFA98, 0xEC4E6C89,
@ -312,6 +322,11 @@ static void F(AVBlowfish *ctx, uint32_t *xl, uint32_t *xr, int i)
*xr = Xl;
}
AVBlowfish *av_blowfish_alloc(void)
{
return av_mallocz(sizeof(struct AVBlowfish));
}
av_cold void av_blowfish_init(AVBlowfish *ctx, const uint8_t *key, int key_len)
{
uint32_t data, data_l, data_r;

10
libavutil/blowfish.h
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@ -22,6 +22,7 @@
#define AVUTIL_BLOWFISH_H
#include <stdint.h>
#include "version.h"
/**
* @defgroup lavu_blowfish Blowfish
@ -29,12 +30,21 @@
* @{
*/
#if FF_API_CRYPTO_CONTEXT
#define AV_BF_ROUNDS 16
typedef struct AVBlowfish {
uint32_t p[AV_BF_ROUNDS + 2];
uint32_t s[4][256];
} AVBlowfish;
#else
typedef struct AVBlowfish AVBlowfish;
#endif
/**
* Allocate an AVBlowfish context.
*/
AVBlowfish *av_blowfish_alloc(void);
/**
* Initialize an AVBlowfish context.

5
libavutil/version.h
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@ -54,7 +54,7 @@
*/
#define LIBAVUTIL_VERSION_MAJOR 54
#define LIBAVUTIL_VERSION_MINOR 16
#define LIBAVUTIL_VERSION_MINOR 17
#define LIBAVUTIL_VERSION_MICRO 0
#define LIBAVUTIL_VERSION_INT AV_VERSION_INT(LIBAVUTIL_VERSION_MAJOR, \
@ -114,6 +114,9 @@
#ifndef FF_API_DLOG
#define FF_API_DLOG (LIBAVUTIL_VERSION_MAJOR < 55)
#endif
#ifndef FF_API_CRYPTO_CONTEXT
#define FF_API_CRYPTO_CONTEXT (LIBAVUTIL_VERSION_MAJOR < 56)
#endif
/**