From 582a1d98665eba7f7d7b510633cc283fd72305e1 Mon Sep 17 00:00:00 2001
From: nyanmisaka <nst799610810@gmail.com>
Date: Tue, 6 Jan 2026 23:15:06 +0800
Subject: Add TrueHD and DTS codes string for HLS

Signed-off-by: nyanmisaka <nst799610810@gmail.com>
---
 Jellyfin.Api/Helpers/DynamicHlsHelper.cs      | 17 +++++++++-
 Jellyfin.Api/Helpers/HlsCodecStringHelpers.cs | 47 ++++++++++++++++++++++++++-
 2 files changed, 62 insertions(+), 2 deletions(-)

(limited to 'Jellyfin.Api')

diff --git a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
index 16e51151d..44e1c6d5a 100644
--- a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
+++ b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
@@ -754,7 +754,9 @@ public class DynamicHlsHelper
     {
         if (string.Equals(state.ActualOutputAudioCodec, "aac", StringComparison.OrdinalIgnoreCase))
         {
-            string? profile = state.GetRequestedProfiles("aac").FirstOrDefault();
+            string? profile = EncodingHelper.IsCopyCodec(state.OutputAudioCodec)
+                ? state.AudioStream?.Profile : state.GetRequestedProfiles("aac").FirstOrDefault();
+
             return HlsCodecStringHelpers.GetAACString(profile);
         }
 
@@ -788,6 +790,19 @@ public class DynamicHlsHelper
             return HlsCodecStringHelpers.GetOPUSString();
         }
 
+        if (string.Equals(state.ActualOutputAudioCodec, "truehd", StringComparison.OrdinalIgnoreCase))
+        {
+            return HlsCodecStringHelpers.GetTRUEHDString();
+        }
+
+        if (string.Equals(state.ActualOutputAudioCodec, "dts", StringComparison.OrdinalIgnoreCase))
+        {
+            // lavc only support encoding DTS core profile
+            string? profile = EncodingHelper.IsCopyCodec(state.OutputAudioCodec) ? state.AudioStream?.Profile : "DTS";
+
+            return HlsCodecStringHelpers.GetDTSString(profile);
+        }
+
         return string.Empty;
     }
 
diff --git a/Jellyfin.Api/Helpers/HlsCodecStringHelpers.cs b/Jellyfin.Api/Helpers/HlsCodecStringHelpers.cs
index 0efb7f45d..cf42d5f10 100644
--- a/Jellyfin.Api/Helpers/HlsCodecStringHelpers.cs
+++ b/Jellyfin.Api/Helpers/HlsCodecStringHelpers.cs
@@ -41,6 +41,11 @@ public static class HlsCodecStringHelpers
     /// </summary>
     public const string OPUS = "Opus";
 
+    /// <summary>
+    /// Codec name for TRUEHD.
+    /// </summary>
+    public const string TRUEHD = "mlpa";
+
     /// <summary>
     /// Gets a MP3 codec string.
     /// </summary>
@@ -59,7 +64,7 @@ public static class HlsCodecStringHelpers
     {
         StringBuilder result = new StringBuilder("mp4a", 9);
 
-        if (string.Equals(profile, "HE", StringComparison.OrdinalIgnoreCase))
+        if (string.Equals(profile, "HE-AAC", StringComparison.OrdinalIgnoreCase))
         {
             result.Append(".40.5");
         }
@@ -117,6 +122,46 @@ public static class HlsCodecStringHelpers
         return OPUS;
     }
 
+    /// <summary>
+    /// Gets an TRUEHD codec string.
+    /// </summary>
+    /// <returns>TRUEHD codec string.</returns>
+    public static string GetTRUEHDString()
+    {
+        return TRUEHD;
+    }
+
+    /// <summary>
+    /// Gets an DTS codec string.
+    /// </summary>
+    /// <param name="profile">DTS profile.</param>
+    /// <returns>DTS codec string.</returns>
+    public static string GetDTSString(string? profile)
+    {
+        if (string.Equals(profile, "DTS", StringComparison.OrdinalIgnoreCase)
+            || string.Equals(profile, "DTS-ES", StringComparison.OrdinalIgnoreCase)
+            || string.Equals(profile, "DTS 96/24", StringComparison.OrdinalIgnoreCase))
+        {
+            return "dtsc";
+        }
+
+        if (string.Equals(profile, "DTS-HD HRA", StringComparison.OrdinalIgnoreCase)
+            || string.Equals(profile, "DTS-HD MA", StringComparison.OrdinalIgnoreCase)
+            || string.Equals(profile, "DTS-HD MA + DTS:X", StringComparison.OrdinalIgnoreCase)
+            || string.Equals(profile, "DTS-HD MA + DTS:X IMAX", StringComparison.OrdinalIgnoreCase))
+        {
+            return "dtsh";
+        }
+
+        if (string.Equals(profile, "DTS Express", StringComparison.OrdinalIgnoreCase))
+        {
+            return "dtse";
+        }
+
+        // Default to DTS core if profile is invalid
+        return "dtsc";
+    }
+
     /// <summary>
     /// Gets a H.264 codec string.
     /// </summary>
-- 
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