**************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* This software is licensed as described in the file COPYING, which
* you should have received as part of this distribution. The terms
* are also available at https://curl.haxx.se/docs/copyright.html.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the COPYING file.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
**************************************************************************

CURLOPT_RTSP_SESSION_ID - set RTSP session ID #include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_SESSION_ID, char *id); Pass a char * as a parameter to set the value of the current RTSP Session ID for the handle. Useful for resuming an in-progress session. Once this value is set to any non-NULL value, libcurl will return CURLE_RTSP_SESSION_ERROR if ID received from the server does not match. If unset (or set to NULL), libcurl will automatically set the ID the first time the server sets it in a response. The application does not have to keep the string around after setting this option. NULL RTSP

CURL *curl = curl_easy_init();
if(curl) {
 char *prev_id; /* saved from before somehow */
 curl_easy_setopt(curl, CURLOPT_URL, "rtsp://example.com/");
 curl_easy_setopt(curl, CURLOPT_RTSP_SESSION_ID, prev_id);
 ret = curl_easy_perform(curl);
 curl_easy_cleanup(curl);
}

Added in 7.20.0 Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. CURLOPT_RTSP_REQUEST "(3), " CURLOPT_RTSP_STREAM_URI "(3), "