int ff_http_do_new_request(URLContext *h, const char *uri)
{
    HTTPContext *s = h->priv_data;
    AVDictionary *options = NULL;
    int ret;
    char hostname1[1024], hostname2[1024], proto1[10], proto2[10];
    int port1, port2;

    av_url_split(proto1, sizeof(proto1), NULL, 0,
                 hostname1, sizeof(hostname1), &port1,
                 NULL, 0, s->location);
    av_url_split(proto2, sizeof(proto2), NULL, 0,
                 hostname2, sizeof(hostname2), &port2,
                 NULL, 0, uri);
    if (port1 != port2 || strncmp(hostname1, hostname2, sizeof(hostname2)) != 0) {
        av_log(h, AV_LOG_ERROR, "Cannot reuse HTTP connection for different host: %s:%d != %s:%d\n",
            hostname1, port1,
            hostname2, port2
        );
        return AVERROR(EINVAL);
    }

    ret = http_shutdown(h, h->flags);
    if (ret < 0)
        return ret;

    s->end_chunked_post = 0;
    s->chunkend      = 0;
    s->off           = 0;
    s->icy_data_read = 0;
    av_free(s->location);
    s->location = av_strdup(uri);
    if (!s->location)
        return AVERROR(ENOMEM);

    ret = http_open_cnx(h, &options);
    av_dict_free(&options);
    return ret;
}