Implement dummy RTSP GET_PARAMETER so that clients can "ping"

modules/stream_out/rtsp.c

@@ -108,6 +108,8 @@ rtsp_stream_t *RtspSetup( sout_stream_t *p_stream, const vlc_url_t *url )
     httpd_UrlCatch( rtsp->url, HTTPD_MSG_SETUP,    RtspCallback, (void*)rtsp );
     httpd_UrlCatch( rtsp->url, HTTPD_MSG_PLAY,     RtspCallback, (void*)rtsp );
     httpd_UrlCatch( rtsp->url, HTTPD_MSG_PAUSE,    RtspCallback, (void*)rtsp );
+    httpd_UrlCatch( rtsp->url, HTTPD_MSG_GETPARAMETER, RtspCallback,
+                    (void*)rtsp );
     httpd_UrlCatch( rtsp->url, HTTPD_MSG_TEARDOWN, RtspCallback, (void*)rtsp );
     return rtsp;
 
@@ -205,6 +207,7 @@ rtsp_stream_id_t *RtspAddId( rtsp_stream_t *rtsp, sout_stream_id_t *sid,
     httpd_UrlCatch( url, HTTPD_MSG_SETUP,    RtspCallbackId, (void *)id );
     httpd_UrlCatch( url, HTTPD_MSG_PLAY,     RtspCallbackId, (void *)id );
     httpd_UrlCatch( url, HTTPD_MSG_PAUSE,    RtspCallbackId, (void *)id );
+    httpd_UrlCatch( url, HTTPD_MSG_GETPARAMETER, RtspCallbackId, (void *)id );
     httpd_UrlCatch( url, HTTPD_MSG_TEARDOWN, RtspCallbackId, (void *)id );
 
     return id;
@@ -396,7 +399,18 @@ static int RtspCallback( httpd_callback_sys_t *p_args,
 
         case HTTPD_MSG_PAUSE:
             answer->i_status = 405;
-            httpd_MsgAdd( answer, "Allow", "DESCRIBE, PLAY, TEARDOWN" );
+            httpd_MsgAdd( answer, "Allow",
+                          "DESCRIBE, TEARDOWN, PLAY, GET_PARAMETER" );
+            break;
+
+        case HTTPD_MSG_GETPARAMETER:
+            if( query->i_body > 0 )
+            {
+                answer->i_status = 451;
+                break;
+            }
+
+            answer->i_status = 200;
             break;
 
         case HTTPD_MSG_TEARDOWN:
@@ -707,7 +721,18 @@ static int RtspCallbackId( httpd_callback_sys_t *p_args,
 
         case HTTPD_MSG_PAUSE:
             answer->i_status = 405;
-            httpd_MsgAdd( answer, "Allow", "SETUP, PLAY, TEARDOWN" );
+            httpd_MsgAdd( answer, "Allow",
+                          "SETUP, TEARDOWN, PLAY, GET_PARAMETER" );
+            break;
+
+        case HTTPD_MSG_GETPARAMETER:
+            if( query->i_body > 0 )
+            {
+                answer->i_status = 451;
+                break;
+            }
+
+            answer->i_status = 200;
             break;
 
         case HTTPD_MSG_TEARDOWN:

src/network/httpd.c

@@ -2068,7 +2068,7 @@ static void httpd_HostThread( httpd_host_t *host )
 
                     httpd_MsgAdd( answer, "Server", "%s", PACKAGE_STRING );
                     httpd_MsgAdd( answer, "Public", "DESCRIBE, SETUP, "
-                                 "TEARDOWN, PLAY, PAUSE" );
+                                 "TEARDOWN, PLAY, PAUSE, GET_PARAMETER" );
                     httpd_MsgAdd( answer, "Content-Length", "0" );
 
                     cl->i_buffer = -1;  /* Force the creation of the answer in