2 files changed, 22 insertions, 4 deletions
diff --git a/Jellyfin.Api/Controllers/UniversalAudioController.cs b/Jellyfin.Api/Controllers/UniversalAudioController.cs
index 1d4adae06..07c22f68e 100644
--- a/Jellyfin.Api/Controllers/UniversalAudioController.cs
+++ b/Jellyfin.Api/Controllers/UniversalAudioController.cs
@@ -17,6 +17,7 @@ using MediaBrowser.Controller.MediaEncoding;
 using MediaBrowser.Controller.Streaming;
 using MediaBrowser.Model.Dlna;
 using MediaBrowser.Model.MediaInfo;
+using MediaBrowser.Model.Session;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Mvc;
@@ -137,6 +138,8 @@ public class UniversalAudioController : BaseJellyfinApiController
         // set device specific data
         foreach (var sourceInfo in info.MediaSources)
         {
+            sourceInfo.TranscodingContainer = transcodingContainer;
+            sourceInfo.TranscodingSubProtocol = transcodingProtocol ?? sourceInfo.TranscodingSubProtocol;
             _mediaInfoHelper.SetDeviceSpecificData(
                 item,
                 sourceInfo,
@@ -171,6 +174,8 @@ public class UniversalAudioController : BaseJellyfinApiController
             return Redirect(mediaSource.Path);
         }
 
+        // This one is currently very misleading as the SupportsDirectStream actually means "can direct play"
+        // The definition of DirectStream also seems changed during development
         var isStatic = mediaSource.SupportsDirectStream;
         if (!isStatic && mediaSource.TranscodingSubProtocol == MediaStreamProtocol.hls)
         {
@@ -178,20 +183,25 @@ public class UniversalAudioController : BaseJellyfinApiController
             // ffmpeg option -> file extension
             //        mpegts -> ts
             //          fmp4 -> mp4
-            // TODO: remove this when we switch back to the segment muxer
             var supportedHlsContainers = new[] { "ts", "mp4" };
 
+            // fallback to mpegts if device reports some weird value unsupported by hls
+            var requestedSegmentContainer = Array.Exists(
+                supportedHlsContainers,
+                element => string.Equals(element, transcodingContainer, StringComparison.OrdinalIgnoreCase)) ? transcodingContainer : "ts";
+            var segmentContainer = Array.Exists(
+                supportedHlsContainers,
+                element => string.Equals(element, mediaSource.TranscodingContainer, StringComparison.OrdinalIgnoreCase)) ? mediaSource.TranscodingContainer : requestedSegmentContainer;
             var dynamicHlsRequestDto = new HlsAudioRequestDto
             {
                 Id = itemId,
                 Container = ".m3u8",
                 Static = isStatic,
                 PlaySessionId = info.PlaySessionId,
-                // fallback to mpegts if device reports some weird value unsupported by hls
-                SegmentContainer = Array.Exists(supportedHlsContainers, element => element == transcodingContainer) ? transcodingContainer : "ts",
+                SegmentContainer = segmentContainer,
                 MediaSourceId = mediaSourceId,
                 DeviceId = deviceId,
-                AudioCodec = audioCodec,
+                AudioCodec = mediaSource.TranscodeReasons == TranscodeReason.ContainerNotSupported ? "copy" : audioCodec,
                 EnableAutoStreamCopy = true,
                 AllowAudioStreamCopy = true,
                 AllowVideoStreamCopy = true,
diff --git a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
index b3878a41e..6f040cfae 100644
--- a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
+++ b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
@@ -151,6 +151,14 @@ public class DynamicHlsHelper
 
         var queryString = _httpContextAccessor.HttpContext.Request.QueryString.ToString();
 
+        // from universal audio service, need to override the AudioCodec when the actual request differs from original query
+        if (!string.Equals(state.OutputAudioCodec, _httpContextAccessor.HttpContext.Request.Query["AudioCodec"].ToString(), StringComparison.OrdinalIgnoreCase))
+        {
+            var newQuery = Microsoft.AspNetCore.WebUtilities.QueryHelpers.ParseQuery(_httpContextAccessor.HttpContext.Request.QueryString.ToString());
+            newQuery["AudioCodec"] = state.OutputAudioCodec;
+            queryString = Microsoft.AspNetCore.WebUtilities.QueryHelpers.AddQueryString(string.Empty, newQuery);
+        }
+
         // from universal audio service
         if (!string.IsNullOrWhiteSpace(state.Request.SegmentContainer)
             && !queryString.Contains("SegmentContainer", StringComparison.OrdinalIgnoreCase))