AV_UTF8_FLAG_ACCEPT_SURROGATES  438 libavutil/avstring.c         !(flags & AV_UTF8_FLAG_ACCEPT_SURROGATES))
AV_UTF8_FLAG_ACCEPT_SURROGATES  367 libavutil/avstring.h     AV_UTF8_FLAG_ACCEPT_INVALID_BIG_CODES|AV_UTF8_FLAG_ACCEPT_NON_CHARACTERS|AV_UTF8_FLAG_ACCEPT_SURROGATES