Function rtmp_http_open

libavformat/rtmphttp.c:183–258

}

static int rtmp_http_open(URLContext *h, const char *uri, int flags)
{
    RTMP_HTTPContext *rt = h->priv_data;
    char headers[1024], url[1024];
    int ret, off = 0;

    av_url_split(NULL, 0, NULL, 0, rt->host, sizeof(rt->host), &rt->port,
                 NULL, 0, uri);

    /* This is the first request that is sent to the server in order to
     * register a client on the server and start a new session. The server
     * replies with a unique id (usually a number) that is used by the client
     * for all future requests.
     * Note: the reply doesn't contain a value for the polling interval.
     * A successful connect resets the consecutive index that is used
     * in the URLs. */
    if (rt->tls) {
        if (rt->port < 0)
            rt->port = RTMPTS_DEFAULT_PORT;
        ff_url_join(url, sizeof(url), "https", NULL, rt->host, rt->port, "/open/1");
    } else {
        if (rt->port < 0)
            rt->port = RTMPT_DEFAULT_PORT;
        ff_url_join(url, sizeof(url), "http", NULL, rt->host, rt->port, "/open/1");
    }

    /* alloc the http context */
    if ((ret = ffurl_alloc(&rt->stream, url, AVIO_FLAG_READ_WRITE, &h->interrupt_callback)) < 0)
        goto fail;

    /* set options */
    snprintf(headers, sizeof(headers),
             "Cache-Control: no-cache\r\n"
             "Content-type: application/x-fcs\r\n"
             "User-Agent: Shockwave Flash\r\n");
    av_opt_set(rt->stream->priv_data, "headers", headers, 0);
    av_opt_set(rt->stream->priv_data, "multiple_requests", "1", 0);
    av_opt_set_bin(rt->stream->priv_data, "post_data", "", 1, 0);

    if (!rt->stream->protocol_whitelist && h->protocol_whitelist) {
        rt->stream->protocol_whitelist = av_strdup(h->protocol_whitelist);
        if (!rt->stream->protocol_whitelist) {
            ret = AVERROR(ENOMEM);
            goto fail;
        }
    }

    /* open the http context */
    if ((ret = ffurl_connect(rt->stream, NULL)) < 0)
        goto fail;

    /* read the server reply which contains a unique ID */
    for (;;) {
        ret = ffurl_read(rt->stream, rt->client_id + off, sizeof(rt->client_id) - off);
        if (!ret || ret == AVERROR_EOF)
            break;
        if (ret < 0)
            goto fail;