---

c: Copyright (C) Daniel Stenberg, <daniel.se>, et al. SPDX-License-Identifier: curl Title: CURLOPT_INTERLEAVEDATA Section: 3 Source: libcurl See-also:

• CURLOPT_INTERLEAVEFUNCTION (3)
• CURLOPT_RTSP_REQUEST (3)

---

NAME

CURLOPT_INTERLEAVEDATA - pointer passed to RTSP interleave callback

SYNOPSIS

#include <curl/curl.h>

CURLcode curl_easy_setopt(CURL *handle, CURLOPT_INTERLEAVEDATA, void *pointer);

DESCRIPTION

This is the userdata pointer that is passed to CURLOPT_INTERLEAVEFUNCTION(3) when interleaved RTP data is received. If the interleave function callback is not set, this pointer is not used anywhere.

DEFAULT

NULL

PROTOCOLS

RTSP

EXAMPLE

struct local {
  void *custom;
};
static size_t rtp_write(void *ptr, size_t size, size_t nmemb, void *userp)
{
  struct local *l = userp;
  printf("my pointer: %p\n", l->custom);
  /* take care of the packet in 'ptr', then return... */
  return size * nmemb;
}

int main(void)
{
  struct local rtp_data;
  CURL *curl = curl_easy_init();
  if(curl) {
    curl_easy_setopt(curl, CURLOPT_INTERLEAVEFUNCTION, rtp_write);
    curl_easy_setopt(curl, CURLOPT_INTERLEAVEDATA, &rtp_data);

    curl_easy_perform(curl);
 }
}

AVAILABILITY

Added in 7.20.0

RETURN VALUE

Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.