Set DDS processing block settings

Author: OhadMeir

src/dds/rs-dds-sensor-proxy.cpp

@@ -25,6 +25,7 @@
 
 #include <src/proc/color-formats-converter.h>
 
+#include <rsutils/string/nocase.h>
 #include <rsutils/json.h>
 using rsutils::json;
 
@@ -664,7 +665,11 @@ void dds_sensor_proxy::add_processing_block( std::string const & filter_name )
         if( ! ppb )
             LOG_WARNING( "Unsupported processing block '" + filter_name + "' received" );
         else
+        {
+            // Currently processing block factory does not support block settings, add here if needed.
+            add_processing_block_settings( filter_name, ppb );
             super::add_processing_block( ppb );
+        }
     }
     catch( std::exception const & e )
     {
@@ -673,5 +678,24 @@ void dds_sensor_proxy::add_processing_block( std::string const & filter_name )
     }
 }
 
+void dds_sensor_proxy::add_processing_block_settings( const std::string & filter_name,
+                                                      std::shared_ptr< librealsense::processing_block_interface > & ppb ) const
+{
+    if( rsutils::string::nocase_equal( filter_name, "Decimation Filter" ) )
+        if( !ppb->supports_option( RS2_OPTION_STREAM_FILTER ) )
+            LOG_ERROR( "Decimation Filter does not support stream filter option" );
+        else
+            if( rsutils::string::nocase_equal( get_name(), "RGB Camera" ) )
+            {
+                ppb->get_option( RS2_OPTION_STREAM_FILTER ).set( RS2_STREAM_COLOR );
+                ppb->get_option( RS2_OPTION_STREAM_FORMAT_FILTER ).set( RS2_FORMAT_ANY );
+            }
+            else
+            {
+                ppb->get_option( RS2_OPTION_STREAM_FILTER ).set( RS2_STREAM_DEPTH );
+                ppb->get_option( RS2_OPTION_STREAM_FORMAT_FILTER ).set( RS2_FORMAT_Z16 );
+            }
+}
+
 
 }  // namespace librealsense

src/dds/rs-dds-sensor-proxy.h

@@ -115,6 +115,9 @@ class dds_sensor_proxy : public software_sensor
     virtual void add_no_metadata( frame *, streaming_impl & );
     virtual void add_frame_metadata( frame *, rsutils::json const & metadata, streaming_impl & );
 
+    void add_processing_block_settings( const std::string & filter_name,
+                                        std::shared_ptr< librealsense::processing_block_interface > & ppb ) const;
+
     friend class dds_device_proxy;  // Currently calls handle_new_metadata
 };