Function av_strncasecmp

libavutil/avstring.c:218–228

}

int av_strncasecmp(const char *a, const char *b, size_t n)
{
    uint8_t c1, c2;
    if (n <= 0)
        return 0;
    do {
        c1 = av_tolower(*a++);
        c2 = av_tolower(*b++);
    } while (--n && c1 && c1 == c2);
    return c1 - c2;
}

char *av_strireplace(const char *str, const char *from, const char *to)
{