Function ff_http_do_new_request2

libavformat/http.c:527–590

}

int ff_http_do_new_request2(URLContext *h, const char *uri, AVDictionary **opts)
{
    HTTPContext *s = h->priv_data;
    AVDictionary *options = NULL;
    int ret;
    char hostname1[1024], hostname2[1024], proto1[10], proto2[10];
    int port1, port2;

    if (!h->prot ||
        !(!strcmp(h->prot->name, "http") ||
          !strcmp(h->prot->name, "https")))
        return AVERROR(EINVAL);

    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 (strcmp(proto1, proto2) != 0) {
        av_log(h, AV_LOG_INFO, "Cannot reuse HTTP connection for different protocol %s vs %s\n",
               proto1, proto2);
        return AVERROR(EINVAL);
    }
    if (port1 != port2 || strncmp(hostname1, hostname2, sizeof(hostname2)) != 0) {
        av_log(h, AV_LOG_INFO, "Cannot reuse HTTP connection for different host: %s:%d != %s:%d\n",
            hostname1, port1,
            hostname2, port2
        );
        return AVERROR(EINVAL);
    }

    if (!s->end_chunked_post) {
        ret = http_shutdown(h, h->flags);
        if (ret < 0)
            return ret;
    }

    if (s->willclose)
        return AVERROR_EOF;

    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);

    av_free(s->uri);
    s->uri = av_strdup(uri);
    if (!s->uri)
        return AVERROR(ENOMEM);

    if ((ret = av_opt_set_dict(s, opts)) < 0)
        return ret;