CURLOPT_INTERLEAVEDATA(3) Library Functions Manual CURLOPT_INTERLEAVEDATA(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_INTERLEAVEFUNC-
TION(3) when interleaved RTP data is received. If the interleave func-
tion callback is not set, this pointer is not used anywhere.
DEFAULT
NULL
PROTOCOLS
This functionality affects rtsp only
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 curl 7.20.0
RETURN VALUE
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).
SEE ALSO
CURLOPT_INTERLEAVEFUNCTION(3), CURLOPT_RTSP_REQUEST(3)
libcurl 2026-07-12 CURLOPT_INTERLEAVEDATA(3)
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