[FFmpeg-devel] [PATCH 1/3] avutil/aes_ctr: rename AES_BLOCK_SIZE to FF_AES_BLOCK_SIZE
James Almer
jamrial at gmail.com
Wed Jun 11 04:54:13 EEST 2025
This is in preparation for the following commit, to prevent redefinitions from
namespace collisions.
Signed-off-by: James Almer <jamrial at gmail.com>
---
libavutil/aes_ctr.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)
diff --git a/libavutil/aes_ctr.c b/libavutil/aes_ctr.c
index 63dcb20d3a..76333ede33 100644
--- a/libavutil/aes_ctr.c
+++ b/libavutil/aes_ctr.c
@@ -29,11 +29,11 @@
#include "mem.h"
#include "random_seed.h"
-#define AES_BLOCK_SIZE (16)
+#define FF_AES_BLOCK_SIZE (16)
typedef struct AVAESCTR {
- DECLARE_ALIGNED(8, uint8_t, counter)[AES_BLOCK_SIZE];
- DECLARE_ALIGNED(8, uint8_t, encrypted_counter)[AES_BLOCK_SIZE];
+ DECLARE_ALIGNED(8, uint8_t, counter)[FF_AES_BLOCK_SIZE];
+ DECLARE_ALIGNED(8, uint8_t, encrypted_counter)[FF_AES_BLOCK_SIZE];
AVAES aes;
} AVAESCTR;
@@ -96,19 +96,19 @@ void av_aes_ctr_increment_iv(struct AVAESCTR *a)
void av_aes_ctr_crypt(struct AVAESCTR *a, uint8_t *dst, const uint8_t *src, int count)
{
- while (count >= AES_BLOCK_SIZE) {
+ while (count >= FF_AES_BLOCK_SIZE) {
av_aes_crypt(&a->aes, a->encrypted_counter, a->counter, 1, NULL, 0);
av_aes_ctr_increment_be64(a->counter + 8);
#if HAVE_FAST_64BIT
- for (int len = 0; len < AES_BLOCK_SIZE; len += 8)
+ for (int len = 0; len < FF_AES_BLOCK_SIZE; len += 8)
AV_WN64(&dst[len], AV_RN64(&src[len]) ^ AV_RN64A(&a->encrypted_counter[len]));
#else
- for (int len = 0; len < AES_BLOCK_SIZE; len += 4)
+ for (int len = 0; len < FF_AES_BLOCK_SIZE; len += 4)
AV_WN32(&dst[len], AV_RN32(&src[len]) ^ AV_RN32A(&a->encrypted_counter[len]));
#endif
- dst += AES_BLOCK_SIZE;
- src += AES_BLOCK_SIZE;
- count -= AES_BLOCK_SIZE;
+ dst += FF_AES_BLOCK_SIZE;
+ src += FF_AES_BLOCK_SIZE;
+ count -= FF_AES_BLOCK_SIZE;
}
if (count > 0) {
--
2.49.0
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