Fix build for ROS2 Humble (#129)

Author: bjsowa

src/image_streamer.cpp

@@ -58,7 +58,7 @@ void ImageTransportImageStreamer::restreamFrame(double max_age)
   if (inactive_ || !initialized_ )
     return;
   try {
-    if ( last_frame + rclcpp::Duration(max_age) < nh_->now() ) {
+    if ( last_frame + rclcpp::Duration::from_seconds(max_age) < nh_->now() ) {
       boost::mutex::scoped_lock lock(send_mutex_);
       sendImage(output_size_image, nh_->now() ); // don't update last_frame, it may remain an old value.
     }

src/ros_compressed_streamer.cpp

@@ -27,7 +27,7 @@ void RosCompressedStreamer::restreamFrame(double max_age)
   if (inactive_ || (last_msg == 0))
     return;
 
-  if ( last_frame + rclcpp::Duration(max_age) < nh_->now() ) {
+  if ( last_frame + rclcpp::Duration::from_seconds(max_age) < nh_->now() ) {
     boost::mutex::scoped_lock lock(send_mutex_);
     sendImage(last_msg, nh_->now() ); // don't update last_frame, it may remain an old value.
   }

src/web_video_server.cpp

@@ -16,6 +16,7 @@
 #include "async_web_server_cpp/http_reply.hpp"
 
 using namespace std::chrono_literals;
+using namespace boost::placeholders;
 
 namespace web_video_server
 {