diff options
| author | Martin Storsjö <martin@martin.st> | 2012-10-11 15:08:04 +0300 |
|---|---|---|
| committer | Martin Storsjö <martin@martin.st> | 2012-10-11 23:35:27 +0300 |
| commit | 9a92aea27bad2f5603ca85e0d0716c679a6b686c (patch) | |
| tree | a38dae27b4c15cc4a75c0a3745351b8c5b3fd122 /libavutil/sha.h | |
| parent | fb32f31af76ce784c86c59c86c28e5653e223610 (diff) | |
avutil: Add functions for allocating opaque contexts for algorithms
The current API where the plain size is exposed is not of much
use - in most cases it is allocated dynamically anyway.
If allocated e.g. on the stack via an uint8_t array, there's no
guarantee that the struct's members are aligned properly (unless
the array is overallocated and the opaque pointer within it
manually aligned to some unspecified alignment).
Signed-off-by: Martin Storsjö <martin@martin.st>
Diffstat (limited to 'libavutil/sha.h')
| -rw-r--r-- | libavutil/sha.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/libavutil/sha.h b/libavutil/sha.h index 8350954c4b..4c9a0c9095 100644 --- a/libavutil/sha.h +++ b/libavutil/sha.h @@ -23,17 +23,27 @@ #include <stdint.h> +#include "attributes.h" +#include "version.h" + /** * @defgroup lavu_sha SHA * @ingroup lavu_crypto * @{ */ -extern const int av_sha_size; +#if FF_API_CONTEXT_SIZE +extern attribute_deprecated const int av_sha_size; +#endif struct AVSHA; /** + * Allocate an AVSHA context. + */ +struct AVSHA *av_sha_alloc(void); + +/** * Initialize SHA-1 or SHA-2 hashing. * * @param context pointer to the function context (of size av_sha_size) |