CURLOPT\_RTSP\_TRANSPORT(3) Library Functions Manual CURLOPT\_RTSP\_TRANSPORT(3)

# [NAME](#NAME)

CURLOPT\_RTSP\_TRANSPORT - RTSP Transport: header

# [SYNOPSIS](#SYNOPSIS)

```
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_TRANSPORT,


                          char *transport);
```

# [DESCRIPTION](#DESCRIPTION)

Pass a char pointer to tell libcurl what to pass for the Transport: header for this RTSP session. This is mainly a convenience method to avoid needing to set a custom Transport: header for every SETUP request. The application must set a Transport: header before issuing a SETUP request.

The application does not have to keep the string around after setting this option.

# [DEFAULT](#DEFAULT)

NULL

# [PROTOCOLS](#PROTOCOLS)

This functionality affects rtsp only

# [EXAMPLE](#EXAMPLE)

```
int main(void)
{


  CURL *curl = curl_easy_init();


  if(curl) {


    CURLcode result;


    curl_easy_setopt(curl, CURLOPT_URL, "rtsp://example.com/");


    curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_SETUP);


    curl_easy_setopt(curl, CURLOPT_RTSP_TRANSPORT,


                     "RTP/AVP;unicast;client_port=4588-4589");


    result = curl_easy_perform(curl);


    curl_easy_cleanup(curl);


  }
}
```

# [HISTORY](#HISTORY)

**CURL\_RTSPREQ\_*** enums became *long* types in 8.13.0, prior to this version a *long* cast was necessary when passed to [*curl\_easy\_setopt(3)*](/man/os/curl/curl_easy_setopt.3).

# [AVAILABILITY](#AVAILABILITY)

Added in curl 7.20.0

# [RETURN VALUE](#RETURN_VALUE)

[*curl\_easy\_setopt(3)*](/man/os/curl/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)*](/man/os/curl/libcurl-errors.3).

# [SEE ALSO](#SEE_ALSO)

[**CURLOPT\_RTSP\_REQUEST**(3)](/man/os/curl/CURLOPT_RTSP_REQUEST.3), [**CURLOPT\_RTSP\_SESSION\_ID**(3)](/man/os/curl/CURLOPT_RTSP_SESSION_ID.3)

2026-10-01 libcurl

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Document: CURLOPT_RTSP_TRANSPORT(3) from curl 8.22.0-r4 (Chainguard OS)
Source: https://github.com/curl/curl.git