CURLOPT_RTSP_SESSION_ID - RTSP session ID

Added in curl 7.20.0

NULL

Pass a char pointer 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 returns CURLE_RTSP_SESSION_ERROR if ID received from the server does not match. If unset (or set to NULL), libcurl automatically sets 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. Using this option multiple times makes the last set string override the previous ones. Set it to NULL to disable its use again.

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

CURLOPT_RTSP_SESSION_ID - RTSP session ID

This functionality affects rtsp only

curl_easy_setopt(3) returns a CURLcode indicating success or error. CURLE_OK (0) means everything was OK, non-zero means an error occurred, see libcurl-errors(3).

CURLOPT_RTSP_REQUEST(3), CURLOPT_RTSP_STREAM_URI(3) libcurl 2025-06-16 CURLOPT_RTSP_SESSION_ID(3)

#include <curl/curl.h> CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_SESSION_ID, char *id);