Initialize SHA-2 512 hashing.
@param context pointer to the function context (of size av_sha512_size) @param bits number of bits in digest (224, 256, 384 or 512 bits) @return zero if initialization succeeded, -1 otherwise
See Implementation
Initialize SHA-2 512 hashing.
@param context pointer to the function context (of size av_sha512_size) @param bits number of bits in digest (224, 256, 384 or 512 bits) @return zero if initialization succeeded, -1 otherwise