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98 lines
4.3 KiB
Groff
98 lines
4.3 KiB
Groff
.\" generated by cd2nroff 0.1 from CURLOPT_RTSP_REQUEST.md
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.TH CURLOPT_RTSP_REQUEST 3 "2024-06-01" libcurl
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.SH NAME
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CURLOPT_RTSP_REQUEST \- RTSP request
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.SH SYNOPSIS
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.nf
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#include <curl/curl.h>
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CURLcode curl_easy_setopt(CURL *handle, CURLOPT_RTSP_REQUEST, long request);
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.fi
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.SH DESCRIPTION
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Tell libcurl what kind of RTSP request to make. Pass one of the following RTSP
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enum values as a long in the \fIrequest\fP argument. Unless noted otherwise,
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commands require the Session ID to be initialized.
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.IP CURL_RTSPREQ_OPTIONS
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Used to retrieve the available methods of the server. The application is
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responsible for parsing and obeying the response. The session ID is not needed
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for this method.
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.IP CURL_RTSPREQ_DESCRIBE
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Used to get the low level description of a stream. The application should note
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what formats it understands in the \fI\(aqAccept:\(aq\fP header. Unless set manually,
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libcurl automatically adds in \fI\(aqAccept: application/sdp\(aq\fP. Time\-condition
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headers are added to Describe requests if the \fICURLOPT_TIMECONDITION(3)\fP
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option is used. (The session ID is not needed for this method)
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.IP CURL_RTSPREQ_ANNOUNCE
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When sent by a client, this method changes the description of the session. For
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example, if a client is using the server to record a meeting, the client can
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use Announce to inform the server of all the meta\-information about the
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session. ANNOUNCE acts like an HTTP PUT or POST just like
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\fICURL_RTSPREQ_SET_PARAMETER\fP
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.IP CURL_RTSPREQ_SETUP
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Setup is used to initialize the transport layer for the session. The
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application must set the desired Transport options for a session by using the
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\fICURLOPT_RTSP_TRANSPORT(3)\fP option prior to calling setup. If no session
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ID is currently set with \fICURLOPT_RTSP_SESSION_ID(3)\fP, libcurl extracts
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and uses the session ID in the response to this request. The session ID is not
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needed for this method.
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.IP CURL_RTSPREQ_PLAY
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Send a Play command to the server. Use the \fICURLOPT_RANGE(3)\fP option to
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modify the playback time (e.g. \fInpt=10\-15\fP).
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.IP CURL_RTSPREQ_PAUSE
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Send a Pause command to the server. Use the \fICURLOPT_RANGE(3)\fP option with
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a single value to indicate when the stream should be
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halted. (e.g. \fInpt=25\fP)
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.IP CURL_RTSPREQ_TEARDOWN
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This command terminates an RTSP session. Simply closing a connection does not
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terminate the RTSP session since it is valid to control an RTSP session over
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different connections.
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.IP CURL_RTSPREQ_GET_PARAMETER
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Retrieve a parameter from the server. By default, libcurl adds a
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\fIContent\-Type: text/parameters\fP header on all non\-empty requests unless a
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custom one is set. GET_PARAMETER acts just like an HTTP PUT or POST (see
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\fICURL_RTSPREQ_SET_PARAMETER\fP). Applications wishing to send a heartbeat
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message (e.g. in the presence of a server\-specified timeout) should send use
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an empty GET_PARAMETER request.
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.IP CURL_RTSPREQ_SET_PARAMETER
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Set a parameter on the server. By default, libcurl uses a *Content\-Type:
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text/parameters* header unless a custom one is set. The interaction with
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SET_PARAMETER is much like an HTTP PUT or POST. An application may either use
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\fICURLOPT_UPLOAD(3)\fP with \fICURLOPT_READDATA(3)\fP like an HTTP PUT, or it may use
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\fICURLOPT_POSTFIELDS(3)\fP like an HTTP POST. No chunked transfers are allowed, so
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the application must set the \fICURLOPT_INFILESIZE(3)\fP in the former and
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\fICURLOPT_POSTFIELDSIZE(3)\fP in the latter. Also, there is no use of multi\-part
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POSTs within RTSP.
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.IP CURL_RTSPREQ_RECORD
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Used to tell the server to record a session. Use the \fICURLOPT_RANGE(3)\fP
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option to modify the record time.
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.IP CURL_RTSPREQ_RECEIVE
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This is a special request because it does not send any data to the server. The
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application may call this function in order to receive interleaved RTP
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data. It returns after processing one read buffer of data in order to give the
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application a chance to run.
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.SH DEFAULT
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.SH PROTOCOLS
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RTSP
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.SH EXAMPLE
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.nf
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int main(void)
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{
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CURL *curl = curl_easy_init();
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if(curl) {
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CURLcode res;
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curl_easy_setopt(curl, CURLOPT_URL, "rtsp://example.com/");
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/* ask for options! */
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curl_easy_setopt(curl, CURLOPT_RTSP_REQUEST, CURL_RTSPREQ_OPTIONS);
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res = curl_easy_perform(curl);
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curl_easy_cleanup(curl);
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}
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}
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.fi
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.SH AVAILABILITY
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Added in 7.20.0
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.SH RETURN VALUE
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Returns CURLE_OK if the option is supported, and CURLE_UNKNOWN_OPTION if not.
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.SH SEE ALSO
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.BR CURLOPT_RTSP_SESSION_ID (3),
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.BR CURLOPT_RTSP_STREAM_URI (3)
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