From 8eb4964599d8dcb9b6bbd178b4794d1a69504368 Mon Sep 17 00:00:00 2001
From: Shadowghost <Ghost_of_Stone@web.de>
Date: Wed, 2 Sep 2026 09:29:48 +0200
Subject: Never treat a manifest container as an audio codec or a direct play
 target

---
 .../EncodingHelperInferAudioCodecTests.cs          | 40 ++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs

(limited to 'tests/Jellyfin.Controller.Tests/MediaEncoding')

diff --git a/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs b/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs
new file mode 100644
index 0000000000..586db2dd50
--- /dev/null
+++ b/tests/Jellyfin.Controller.Tests/MediaEncoding/EncodingHelperInferAudioCodecTests.cs
@@ -0,0 +1,40 @@
+using MediaBrowser.Common.Configuration;
+using MediaBrowser.Controller.IO;
+using MediaBrowser.Controller.MediaEncoding;
+using Moq;
+using Xunit;
+using IConfiguration = Microsoft.Extensions.Configuration.IConfiguration;
+
+namespace Jellyfin.Controller.Tests.MediaEncoding;
+
+public class EncodingHelperInferAudioCodecTests
+{
+    [Theory]
+    // Manifests and other containers that carry no inferable audio codec.
+    [InlineData("m3u8", "aac")]
+    [InlineData("mpd", "aac")]
+    [InlineData("wtv", "aac")]
+    [InlineData("", "aac")]
+    // Containers with a well known audio codec.
+    [InlineData("mp4", "aac")]
+    [InlineData("mkv", "aac")]
+    [InlineData("webm", "opus")]
+    [InlineData("ts", "mp3")]
+    // Containers named after the codec they carry.
+    [InlineData("flac", "flac")]
+    [InlineData("opus", "opus")]
+    [InlineData("ac3", "ac3")]
+    public void InferAudioCodec_ReturnsAnAudioCodec(string container, string expected)
+    {
+        Assert.Equal(expected, Create().InferAudioCodec(container));
+    }
+
+    private static EncodingHelper Create()
+        => new(
+            Mock.Of<IApplicationPaths>(),
+            Mock.Of<IMediaEncoder>(),
+            Mock.Of<ISubtitleEncoder>(),
+            Mock.Of<IConfiguration>(),
+            Mock.Of<IConfigurationManager>(),
+            Mock.Of<IPathManager>());
+}
-- 
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