stasis_bridge.c: Fixed wrong video_mode shown

Currently, if the bridge has created by the ARI, the video_mode
parameter was
not shown in the BridgeCreated event correctly.

Fixed it and added video_mode shown in the 'bridge show <bridge id>'
cli.

ASTERISK-28987

Change-Id: I8c205126724e34c2bdab9380f523eb62478e4295

main/bridge.c

@@ -5126,6 +5126,7 @@ static char *handle_bridge_show_specific(struct ast_cli_entry *e, int cmd, struc
 	ast_cli(a->fd, "Subclass: %s\n", snapshot->subclass);
 	ast_cli(a->fd, "Creator: %s\n", snapshot->creator);
 	ast_cli(a->fd, "Name: %s\n", snapshot->name);
+	ast_cli(a->fd, "Video-Mode: %s\n", ast_bridge_video_mode_to_string(snapshot->video_mode));
 	ast_cli(a->fd, "Video-Source-Id: %s\n", snapshot->video_source_id);
 	ast_cli(a->fd, "Num-Channels: %u\n", snapshot->num_channels);
 	ast_cli(a->fd, "Num-Active: %u\n", snapshot->num_active);

res/res_stasis.c

@@ -799,12 +799,12 @@ struct ast_bridge *stasis_app_bridge_create(const char *type, const char *name,
 
 	bridge = bridge_stasis_new(capabilities, flags, name, id);
 	if (bridge) {
-		ast_bridge_set_talker_src_video_mode(bridge);
 		if (!ao2_link(app_bridges, bridge)) {
 			ast_bridge_destroy(bridge, 0);
 			bridge = NULL;
 		}
 	}
+
 	return bridge;
 }
 

res/stasis/stasis_bridge.c

@@ -305,6 +305,11 @@ struct ast_bridge *bridge_stasis_new(uint32_t capabilities, unsigned int flags,
 
 	bridge = bridge_alloc(sizeof(struct ast_bridge), &bridge_stasis_v_table);
 	bridge = bridge_base_init(bridge, capabilities, flags, "Stasis", name, id);
+	if (!bridge) {
+		return NULL;
+	}
+
+	ast_bridge_set_talker_src_video_mode(bridge);
 	bridge = bridge_register(bridge);
 
 	return bridge;