CURLOPT_RTSP_SESSION_ID - RTSP session ID
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.
CURL *curl = curl_easy_init();
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);
Returns CURLE_OK if the option is supported, CURLE_UNKNOWN_OPTION if not, or
CURLE_OUT_OF_MEMORY if there was insufficient heap space.