h->is_streamed = 1;
static int pipe_open(URLContext *h, const char *filename, int flags){    int fd;    if (flags & URL_WRONLY) {        fd = 1;    } else {        fd = 0;    }#if defined(CONFIG_WIN32) || defined(CONFIG_OS2) || defined(__CYGWIN__)    setmode(fd, O_BINARY);#endif    h->priv_data = (void *)(size_t)fd;    return 0;}