maint: update deps

deps/curl/docs/libcurl/opts/CURLINFO_RTSP_CSEQ_RECV.md

@@ -0,0 +1,61 @@
+---
+c: Copyright (C) Daniel Stenberg, <daniel@haxx.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLINFO_RTSP_CSEQ_RECV
+Section: 3
+Source: libcurl
+See-also:
+  - CURLINFO_RTSP_SERVER_CSEQ (3)
+  - curl_easy_getinfo (3)
+  - curl_easy_setopt (3)
+---
+
+# NAME
+
+CURLINFO_RTSP_CSEQ_RECV - get the recently received CSeq
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLcode curl_easy_getinfo(CURL *handle, CURLINFO_RTSP_CSEQ_RECV, long *cseq);
+~~~
+
+# DESCRIPTION
+
+Pass a pointer to a long to receive the most recently received CSeq from the
+server. If your application encounters a *CURLE_RTSP_CSEQ_ERROR* then you
+may wish to troubleshoot and/or fix the CSeq mismatch by peeking at this
+value.
+
+# PROTOCOLS
+
+RTSP
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURL *curl = curl_easy_init();
+  if(curl) {
+    CURLcode res;
+    curl_easy_setopt(curl, CURLOPT_URL, "rtsp://rtsp.example.com");
+    res = curl_easy_perform(curl);
+    if(res == CURLE_OK) {
+      long cseq;
+      curl_easy_getinfo(curl, CURLINFO_RTSP_CSEQ_RECV, &cseq);
+    }
+    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.