Allocate EVP_CIPHER_CTX dynamically
Allocate EVP_CIPHER_CTX dynamically

Required to build against OpenSSL 1.1

Cinegy/srt,Haivision/srt,ethouris/srt,Cinegy/srt,ethouris/srt,Haivision/srt,Haivision/srt,ethouris/srt,Cinegy/srt,Cinegy/srt,ethouris/srt,Haivision/srt