diff --git a/src/ctl/ctl-sink.c b/src/ctl/ctl-sink.c
index 3897b9b..dd89fa4 100644
--- a/src/ctl/ctl-sink.c
+++ b/src/ctl/ctl-sink.c
@@ -77,88 +77,88 @@ static void sink_handle_options(struct ctl_sink *s,
 }
 
 static void sink_handle_get_parameter(struct ctl_sink *s,
-				      struct rtsp_message *m)
+                                      struct rtsp_message *m)
 {
-	_rtsp_message_unref_ struct rtsp_message *rep = NULL;
-	int r;
+    _rtsp_message_unref_ struct rtsp_message *rep = NULL;
+    int r;
 
-	r = rtsp_message_new_reply_for(m, &rep, RTSP_CODE_OK, NULL);
-	if (r < 0)
-		return cli_vERR(r);
+    r = rtsp_message_new_reply_for(m, &rep, RTSP_CODE_OK, NULL);
+    if (r < 0)
+        return cli_vERR(r);
 
-	/* wfd_content_protection */
-	check_and_response_option("wfd_content_protection", "none");
-        GHashTable* protocol_extensions = s->protocol_extensions;
-	/* wfd_video_formats */
-        gchar* wfd_video_formats = NULL;
+    /* wfd_content_protection */
+    check_and_response_option("wfd_content_protection", "none");
+    GHashTable* protocol_extensions = s->protocol_extensions;
+    /* wfd_video_formats */
+    gchar* wfd_video_formats = NULL;
+    if (protocol_extensions != NULL) {
+        gchar* wfd_video_formats_extension = g_hash_table_lookup(protocol_extensions, WFD_VIDEO_FORMATS);
+        if (wfd_video_formats_extension != NULL) {
+            wfd_video_formats = wfd_video_formats_extension;
+        }
+    }
+    bool create_wfd_video_formats = wfd_video_formats == NULL;
+    if (create_wfd_video_formats) {
+        gchar video_formats[128];
+        sprintf(video_formats, "00 00 03 10 %08x %08x %08x 00 0000 0000 10 none none",
+                s->resolutions_cea, s->resolutions_vesa, s->resolutions_hh);
+        wfd_video_formats = strdup(video_formats);
+    }
+    check_and_response_option(WFD_VIDEO_FORMATS, wfd_video_formats);
+    if (create_wfd_video_formats) {
+        g_free(wfd_video_formats);
+    }
+
+    /* wfd_audio_codecs */
+    gchar* wfd_audio_codecs = "AAC 00000007 00";
+    if (protocol_extensions != NULL) {
+        gchar* wfd_audio_codecs_extension = g_hash_table_lookup(protocol_extensions, WFD_AUDIO_CODECS);
+        if (wfd_audio_codecs_extension != NULL) {
+            wfd_audio_codecs = wfd_audio_codecs_extension;
+        }
+    }
+    check_and_response_option(WFD_AUDIO_CODECS, wfd_audio_codecs);
+
+    /* wfd_client_rtp_ports */
+    char wfd_client_rtp_ports[128];
+    sprintf(wfd_client_rtp_ports, "RTP/AVP/UDP;unicast %d 0 mode=play", rstp_port);
+    check_and_response_option("wfd_client_rtp_ports", wfd_client_rtp_ports);
+
+    if (protocol_extensions != NULL) {
+        GList* extension_keys = g_hash_table_get_keys(protocol_extensions);
+        for (int i = 0; i<g_list_length(extension_keys); i++) {
+            gchar* key = g_list_nth_data(extension_keys, i);
+            if (g_strcmp0(key, WFD_VIDEO_FORMATS) == 0
+                || g_strcmp0(key, WFD_AUDIO_CODECS) == 0
+                || g_strcmp0(key, WFD_UIBC_CAPABILITY) == 0) {
+                continue;
+            }
+            gchar* value = g_hash_table_lookup(protocol_extensions, key);
+            check_and_response_option(key, value);
+        }
+    }
+
+    /* wfd_uibc_capability */
+    if (uibc_option) {
+        gchar* wfd_uibc_capability = "input_category_list=GENERIC;"
+                                     "generic_cap_list=Mouse,SingleTouch;"
+                                     "hidc_cap_list=none;"
+                                     "port=none";
         if (protocol_extensions != NULL) {
-            gchar* wfd_video_formats_extension = g_hash_table_lookup(protocol_extensions, WFD_VIDEO_FORMATS);
-            if (wfd_video_formats_extension != NULL) {
-	        wfd_video_formats = wfd_video_formats_extension;
+            gchar* wfd_uibc_capability_extension = g_hash_table_lookup(protocol_extensions, WFD_UIBC_CAPABILITY);
+            if (wfd_uibc_capability_extension != NULL) {
+                wfd_uibc_capability = wfd_uibc_capability_extension;
             }
         }
-        bool create_wfd_video_formats = wfd_video_formats == NULL;
-        if (create_wfd_video_formats) {
-            gchar video_formats[128];
-            sprintf(video_formats, "00 00 03 10 %08x %08x %08x 00 0000 0000 10 none none",
-                    s->resolutions_cea, s->resolutions_vesa, s->resolutions_hh);
-	    wfd_video_formats = strdup(video_formats);
-        }
-        check_and_response_option(WFD_VIDEO_FORMATS, wfd_video_formats);
-        if (create_wfd_video_formats) {
-            g_free(wfd_video_formats);
-        }
+        check_and_response_option(WFD_UIBC_CAPABILITY, wfd_uibc_capability);
+    }
 
-	/* wfd_audio_codecs */
-        gchar* wfd_audio_codecs = "AAC 00000007 00";
-        if (protocol_extensions != NULL) {
-            gchar* wfd_audio_codecs_extension = g_hash_table_lookup(protocol_extensions, WFD_AUDIO_CODECS);
-            if (wfd_audio_codecs_extension != NULL) {
-                wfd_audio_codecs = wfd_audio_codecs_extension;
-            }
-        }
-	check_and_response_option(WFD_AUDIO_CODECS, wfd_audio_codecs);
+    rtsp_message_seal(rep);
+    cli_debug("OUTGOING: %s\n", rtsp_message_get_raw(rep));
 
-	/* wfd_client_rtp_ports */
-	char wfd_client_rtp_ports[128];
-	sprintf(wfd_client_rtp_ports, "RTP/AVP/UDP;unicast %d 0 mode=play", rstp_port);
-	check_and_response_option("wfd_client_rtp_ports", wfd_client_rtp_ports);
-
-        if (protocol_extensions != NULL) {
-            GList* extension_keys = g_hash_table_get_keys(protocol_extensions);
-            for (int i = 0; i<g_list_length(extension_keys); i++) {
-                gchar* key = g_list_nth_data(extension_keys, i);
-                if (g_strcmp0(key, WFD_VIDEO_FORMATS) == 0
-                    || g_strcmp0(key, WFD_AUDIO_CODECS) == 0
-                    || g_strcmp0(key, WFD_UIBC_CAPABILITY) == 0) {
-                    continue;
-                }
-                gchar* value = g_hash_table_lookup(protocol_extensions, key);
-	        check_and_response_option(key, value);
-            }
-        }
-
-	/* wfd_uibc_capability */
-	if (uibc_option) {
-            gchar* wfd_uibc_capability = "input_category_list=GENERIC;"
-                                         "generic_cap_list=Mouse,SingleTouch;"
-                                         "hidc_cap_list=none;"
-                                         "port=none";
-            if (protocol_extensions != NULL) {
-                gchar* wfd_uibc_capability_extension = g_hash_table_lookup(protocol_extensions, WFD_UIBC_CAPABILITY);
-                if (wfd_uibc_capability_extension != NULL) {
-	            wfd_uibc_capability = wfd_uibc_capability_extension;
-                }
-            }
-            check_and_response_option(WFD_UIBC_CAPABILITY, wfd_uibc_capability);
-	}
-
-	rtsp_message_seal(rep);
-	cli_debug("OUTGOING: %s\n", rtsp_message_get_raw(rep));
-
-	r = rtsp_send(s->rtsp, rep);
-	if (r < 0)
-		return cli_vERR(r);
+    r = rtsp_send(s->rtsp, rep);
+    if (r < 0)
+        return cli_vERR(r);
 }
 
 bool check_rtsp_option(struct rtsp_message *m, char *option) {