logging: Improve packet loss messages

Avoid flooding of packet loss messages on Windows because the
console is very slow.

Fix packet loss counting.

Author: xlz

examples/Protonect.cpp

@@ -93,8 +93,13 @@ int main(int argc, char *argv[])
   }
 
   libfreenect2::Freenect2 freenect2;
+#if defined(WIN32) || defined(_WIN32) || defined(__WIN32__)
+  // avoid flooing the very slow Windows console with debug messages
+  libfreenect2::setGlobalLogger(libfreenect2::createConsoleLogger(libfreenect2::Logger::Info));
+#else
   // create a console logger with debug level (default is console logger with info level)
   libfreenect2::setGlobalLogger(libfreenect2::createConsoleLogger(libfreenect2::Logger::Debug));
+#endif
   MyFileLogger *filelogger = new MyFileLogger(getenv("LOGFILE"));
   if (filelogger->good())
     libfreenect2::setGlobalLogger(filelogger);

src/depth_packet_stream_parser.cpp

@@ -119,9 +119,9 @@ void DepthPacketStreamParser::onDataReceived(unsigned char* buffer, size_t in_le
                 processed_packets_ = current_sequence_;
               int diff = current_sequence_ - processed_packets_;
               const int interval = 30;
-              if (current_sequence_ % interval == 0 && diff != 0)
+              if ((current_sequence_ % interval == 0 && diff != 0) || diff >= interval)
               {
-                LOG_INFO << diff << " of " << interval << " packets were lost";
+                LOG_INFO << diff << " packets were lost";
                 processed_packets_ = current_sequence_;
               }
             }

src/rgb_packet_stream_parser.cpp

@@ -157,7 +157,7 @@ void RgbPacketStreamParser::onDataReceived(unsigned char* buffer, size_t length)
       }
       else
       {
-        LOG_WARNING << "skipping rgb packet!";
+        LOG_DEBUG << "skipping rgb packet!";
       }
 
       // reset front buffer