Unknown option: "-3" Unix manual page for CURLOPT_RTSP_STREAM_URI. (host=minya system=Darwin)
CURLOPT_RTSP_STREAM_URI(3) curl_easy_setopt options CURLOPT_RTSP_STREAM_URI(3)

NAME
       CURLOPT_RTSP_STREAM_URI - set RTSP stream URI

SYNOPSIS
       #include <curl/curl.h>

       CURLcode  curl_easy_setopt(CURL  *handle, CURLOPT_RTSP_STREAM_URI, char
       *URI);

DESCRIPTION
       Set the stream URI to operate on by passing a char * . For  example,  a
       single   session   may   be  controlling  rtsp://foo/twister/audio  and
       rtsp://foo/twister/video and the application can switch to  the  appro-
       priate  stream  using  this  option.  If unset, libcurl will default to
       operating on generic server options by passing '*' in the place of  the
       RTSP  Stream  URI.  This  option  is distinct from CURLOPT_URL(3). When
       working with RTSP, the CURLOPT_RTSP_STREAM_URI(3) indicates what URL to
       send to the server in the request header while the CURLOPT_URL(3) indi-
       cates where to make the connection to.  (e.g.  the  CURLOPT_URL(3)  for
       the above examples might be set to rtsp://foo/twister

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

DEFAULT
PROTOCOLS
       RTSP

EXAMPLE
       TODO

AVAILABILITY
       Added in 7.20.0

RETURN VALUE
       Returns CURLE_OK if the option is  supported,  CURLE_UNKNOWN_OPTION  if
       not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space.

SEE ALSO
       CURLOPT_RTSP_REQUEST(3), CURLOPT_RTSP_TRANSPORT(3),

libcurl 7.54.0                 December 21, 2016    CURLOPT_RTSP_STREAM_URI(3)