libobs, obs-scripting, vlc-video: Fix compiler warnings

deps/obs-scripting/obs-scripting-lua.c

@@ -590,9 +590,11 @@ static int enum_sources(lua_State *script)
 
 /* -------------------------------------------- */
 
-static bool source_enum_filters_proc(obs_source_t *source, obs_source_t *filter,
+static void source_enum_filters_proc(obs_source_t *source, obs_source_t *filter,
 				     void *param)
 {
+	UNUSED_PARAMETER(source);
+
 	lua_State *script = param;
 
 	obs_source_get_ref(filter);
@@ -600,7 +602,6 @@ static bool source_enum_filters_proc(obs_source_t *source, obs_source_t *filter,
 
 	size_t idx = lua_rawlen(script, -2);
 	lua_rawseti(script, -2, (int)idx + 1);
-	return true;
 }
 
 static int source_enum_filters(lua_State *script)

libobs/obs-encoder.c

@@ -349,7 +349,7 @@ obs_properties_t *obs_get_encoder_properties(const char *id)
 	const struct obs_encoder_info *ei = find_encoder(id);
 	if (ei && (ei->get_properties || ei->get_properties2)) {
 		obs_data_t *defaults = get_defaults(ei);
-		obs_properties_t *properties;
+		obs_properties_t *properties = NULL;
 
 		if (ei->get_properties2) {
 			properties = ei->get_properties2(NULL, ei->type_data);

plugins/vlc-video/vlc-video-source.c

@@ -230,7 +230,9 @@ static inline unsigned get_format_lines(enum video_format format,
 	case VIDEO_FORMAT_BGRX:
 	case VIDEO_FORMAT_Y800:
 		return height;
-	case VIDEO_FORMAT_NONE:;
+	case VIDEO_FORMAT_NONE:
+	default:
+		break;
 	}
 
 	return 0;