From 093e9ae7bfe18509b1f1cd3eaf5cdf4d382bab51 Mon Sep 17 00:00:00 2001
From: Tapani Pihlajakuja <tapani.pihlajakuja@nokia.com>
Date: Fri, 24 Oct 2025 12:59:21 +0300
Subject: [PATCH] Port changes from float MR 2197 to ivas-float-update.

---
 apps/renderer.c   | 23 +++++++++++++++++++++++
 lib_com/options.h |  1 +
 2 files changed, 24 insertions(+)

diff --git a/apps/renderer.c b/apps/renderer.c
index d9e20dc3e..e57df6db7 100644
--- a/apps/renderer.c
+++ b/apps/renderer.c
@@ -70,6 +70,10 @@
 #define IVAS_MAX16B_FLT 32767.0f
 #define IVAS_MIN16B_FLT ( -32768.0f )
 
+#ifdef NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS
+#define OMASA_TDREND_MATCHING_GAIN_DB ( -2.0f )
+#endif
+
 #if !defined( DEBUGGING ) && !defined( WMOPS )
 static
 #endif
@@ -1170,20 +1174,39 @@ int main(
         }
     }
 
+#ifndef NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS
     /* Set the total number of objects */
+#endif
     if ( args.inConfig.numAudioObjects > 0 )
     {
+#ifdef NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS
+        /* Set the total number of objects */
+#endif
         if ( ( error = IVAS_REND_SetTotalNumberOfObjects( hIvasRend, args.inConfig.numAudioObjects ) ) != IVAS_ERR_OK )
         {
             fprintf( stderr, "\nError in IVAS_REND_SetTotalNumberOfObjects(): %s\n", ivas_error_to_string( error ) );
             goto cleanup;
         }
 
+#ifdef NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS
+        /* Set the metadata delay for objects */
+#endif
         if ( ( error = IVAS_REND_SetIsmMetadataDelay( hIvasRend, args.syncMdDelay ) ) != IVAS_ERR_OK )
         {
             fprintf( stderr, "\nError in IVAS_REND_SetIsmMetadataDelay(): %s\n", ivas_error_to_string( error ) );
             goto cleanup;
         }
+#ifdef NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS
+
+        /* For OMASA input and BINAURAL output, apply a gain to objects to match the loudness with MASA part */
+        if ( args.inConfig.numMasaBuses > 0 && args.outConfig.audioConfig == IVAS_AUDIO_CONFIG_BINAURAL )
+        {
+            for ( i = 0; i < args.inConfig.numAudioObjects; ++i )
+            {
+                args.inConfig.audioObjects[i].gain_dB += OMASA_TDREND_MATCHING_GAIN_DB;
+            }
+        }
+#endif
     }
 
     IVAS_REND_LfePanMtx lfePanMatrix;
diff --git a/lib_com/options.h b/lib_com/options.h
index c0b8c7f09..514ac3129 100644
--- a/lib_com/options.h
+++ b/lib_com/options.h
@@ -194,6 +194,7 @@
 #define FIX_RENDERER_STACK                              /* VA: issue 1322: reduction of renderers' buffers size */
 #define FIX_1370_EXTERNAL_ORIENTATION_CHECK             /* Nokia: add sanity check for Euler angles for external orientations */
 #define NONBE_FIX_1197_OMASA_META_BUFFER                /* Nokia: OMASA ISM_MASA_MODE_PARAM_ONE_OBJ history zero in rateswitching - port 251 */
+#define NONBE_1359_FIX_IVASREND_OMASA_BINAURAL_LOUDNESS /* Nokia: issue 1339: Apply scaling to the object-part of OMASA for binaural rendering in IVAS_rend. */
 
 // object-editing feature porting
 #define FIX_HRTF_LOAD_API                               // solves API conflicts between HRTF and object-editing features
-- 
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