CURLOPT_RTSP_REQUEST
Section: curl_easy_setopt options (3)
Updated: November 04, 2020
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NAME
CURLOPT_RTSP_REQUEST - specify RTSP request
SYNOPSIS
#include <
curl/curl.h>
CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_REQUEST, long request);
DESCRIPTION
Tell libcurl what kind of RTSP request to make. Pass one of the following RTSP
enum values as a long in the
request argument. Unless noted otherwise,
commands require the Session ID to be initialized.
- CURL_RTSPREQ_OPTIONS
-
Used to retrieve the available methods of the server. The application is
responsible for parsing and obeying the response. The session ID is not needed
for this method.
- CURL_RTSPREQ_DESCRIBE
-
Used to get the low level description of a stream. The application should note
what formats it understands in the 'Accept:' header. Unless set
manually, libcurl will automatically fill in 'Accept: application/sdp'.
Time-condition headers will be added to Describe requests if the
CURLOPT_TIMECONDITION(3) option is active. (The session ID is not
needed for this method)
- CURL_RTSPREQ_ANNOUNCE
-
When sent by a client, this method changes the description of the session. For
example, if a client is using the server to record a meeting, the client can
use Announce to inform the server of all the meta-information about the
session. ANNOUNCE acts like an HTTP PUT or POST just like
CURL_RTSPREQ_SET_PARAMETER
- CURL_RTSPREQ_SETUP
-
Setup is used to initialize the transport layer for the session. The
application must set the desired Transport options for a session by using the
CURLOPT_RTSP_TRANSPORT(3) option prior to calling setup. If no session
ID is currently set with CURLOPT_RTSP_SESSION_ID(3), libcurl will
extract and use the session ID in the response to this request. The session ID
is not needed for this method.
- CURL_RTSPREQ_PLAY
-
Send a Play command to the server. Use the CURLOPT_RANGE(3) option to
modify the playback time (e.g. 'npt=10-15').
- CURL_RTSPREQ_PAUSE
-
Send a Pause command to the server. Use the CURLOPT_RANGE(3) option with
a single value to indicate when the stream should be halted. (e.g. npt='25')
- CURL_RTSPREQ_TEARDOWN
-
This command terminates an RTSP session. Simply closing a connection does not
terminate the RTSP session since it is valid to control an RTSP session over
different connections.
- CURL_RTSPREQ_GET_PARAMETER
-
Retrieve a parameter from the server. By default, libcurl will automatically
include a Content-Type: text/parameters header on all non-empty requests
unless a custom one is set. GET_PARAMETER acts just like an HTTP PUT or POST
(see CURL_RTSPREQ_SET_PARAMETER).
Applications wishing to send a heartbeat message (e.g. in the presence of a
server-specified timeout) should send use an empty GET_PARAMETER request.
- CURL_RTSPREQ_SET_PARAMETER
-
Set a parameter on the server. By default, libcurl will automatically include
a Content-Type: text/parameters header unless a custom one is set. The
interaction with SET_PARAMETER is much like an HTTP PUT or POST. An application
may either use CURLOPT_UPLOAD(3) with CURLOPT_READDATA(3) like a
HTTP PUT, or it may use CURLOPT_POSTFIELDS(3) like an HTTP POST. No
chunked transfers are allowed, so the application must set the
CURLOPT_INFILESIZE(3) in the former and CURLOPT_POSTFIELDSIZE(3)
in the latter. Also, there is no use of multi-part POSTs within RTSP.
- CURL_RTSPREQ_RECORD
-
Used to tell the server to record a session. Use the CURLOPT_RANGE(3)
option to modify the record time.
- CURL_RTSPREQ_RECEIVE
-
This is a special request because it does not send any data to the server. The
application may call this function in order to receive interleaved RTP
data. It will return after processing one read buffer of data in order to give
the application a chance to run.
DEFAULT
PROTOCOLS
RTSP
EXAMPLE
CURL *curl = curl_easy_init();
if(curl) {
curl_easy_setopt(curl, CURLOPT_URL, "rtsp://example.com/");
/* ask for options! */
curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_OPTIONS);
ret = curl_easy_perform(curl);
curl_easy_cleanup(curl);
}
AVAILABILITY
Added in 7.20.0
RETURN VALUE
Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
SEE ALSO
CURLOPT_RTSP_SESSION_ID(3),
CURLOPT_RTSP_STREAM_URI(3),