From 885e98bfcf1e0de9a2a2ac8aed1ccea1b92af27b Mon Sep 17 00:00:00 2001
From: takov751 <40316768+takov751@users.noreply.github.com>
Date: Wed, 13 May 2026 12:52:44 +0100
Subject: [PATCH] finetune opus encoding

---
 server/utils/ffmpegHelpers.js | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/server/utils/ffmpegHelpers.js b/server/utils/ffmpegHelpers.js
index 7ad2a3aee..c83e29ed3 100644
--- a/server/utils/ffmpegHelpers.js
+++ b/server/utils/ffmpegHelpers.js
@@ -471,7 +471,11 @@ async function mergeAudioFiles(audioTracks, duration, itemCachePath, outputFileP
   ffmpeg.outputOptions(['-f mp4'])
 
   if (audioRequiresEncode) {
-    ffmpeg.outputOptions(['-map 0:a', `-acodec ${audioCodec}`, `-ac ${audioChannels}`, `-b:a ${audioBitrate}`])
+    if (audioCodec === 'opus') {
+      ffmpeg.outputOptions(['-map 0:a', '-c:a libopus', `-b:a ${audioBitrate}`, '-vbr on', '-compression_level 10', '-application voip', `-ac ${audioChannels}`])
+    } else {
+      ffmpeg.outputOptions(['-map 0:a', `-acodec ${audioCodec}`, `-ac ${audioChannels}`, `-b:a ${audioBitrate}`])
+    }
   } else {
     ffmpeg.outputOptions(['-max_muxing_queue_size 1000'])