From afd7cce0bb73a852baeacbb0921520f89113a443 Mon Sep 17 00:00:00 2001
From: Wei Kang <wkang.pku@gmail.com>
Date: Wed, 12 Feb 2025 00:30:32 +0800
Subject: [PATCH] Avoid overwrite existing custom fields in dnsmos annotation.
 (#1450)
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Avoid overwritten existing custom fields in dnsmos annotation.

Co-authored-by: Piotr Żelasko <petezor@gmail.com>
---
 lhotse/workflows/dnsmos.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/lhotse/workflows/dnsmos.py b/lhotse/workflows/dnsmos.py
index 1270212c3..7a119ce2a 100644
--- a/lhotse/workflows/dnsmos.py
+++ b/lhotse/workflows/dnsmos.py
@@ -209,5 +209,8 @@ def _annotate_cuts(
 
         for future in tqdm(futures, desc="Processing"):
             cut, result = future.result()
-            new_cut = fastcopy(cut, custom=result)
-            yield new_cut
+            if cut.custom is not None:
+                cut.custom.update(result)
+            else:
+                cut.custom = result
+            yield cut