[core] Fixed suspicious (HCRYPT_CTX_F_ENCRYPT & ctx->flags ? ..).
[core] Fixed suspicious (HCRYPT_CTX_F_ENCRYPT & ctx->flags ? ..).

 Using parentheses to clarify the code.
ethouris/srt,Cinegy/srt,ethouris/srt,Haivision/srt,Haivision/srt,Cinegy/srt,ethouris/srt,Haivision/srt,Cinegy/srt,ethouris/srt,Haivision/srt,Cinegy/srt