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.\" generated by cd2nroff 0.1 from CURLOPT_INTERLEAVEDATA.md
.TH CURLOPT_INTERLEAVEDATA 3 "2025-06-27" libcurl
.SH NAME
CURLOPT_INTERLEAVEDATA \- pointer passed to RTSP interleave callback
.SH SYNOPSIS
.nf
#include <curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_INTERLEAVEDATA, void *pointer);
.fi
.SH DESCRIPTION
This is the userdata \fIpointer\fP that is passed to
\fICURLOPT_INTERLEAVEFUNCTION(3)\fP when interleaved RTP data is received. If
the interleave function callback is not set, this pointer is not used
anywhere.
.SH DEFAULT
NULL
.SH PROTOCOLS
This functionality affects rtsp only
.SH EXAMPLE
.nf
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);
}
}
.fi
.SH AVAILABILITY
Added in curl 7.20.0
.SH RETURN VALUE
\fIcurl_easy_setopt(3)\fP returns a CURLcode indicating success or error.
CURLE_OK (0) means everything was OK, non\-zero means an error occurred, see
\fIlibcurl\-errors(3)\fP.
.SH SEE ALSO
.BR CURLOPT_INTERLEAVEFUNCTION (3),
.BR CURLOPT_RTSP_REQUEST (3)