Use source audio bitrate if requested codec is lossless

1 files changed, 11 insertions, 2 deletions

diff --git a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
index 555babc0e..4486954c6 100644
--- a/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
+++ b/Jellyfin.Api/Helpers/DynamicHlsHelper.cs
@@ -9,6 +9,7 @@ using System.Threading;
 using System.Threading.Tasks;
 using Jellyfin.Api.Extensions;
 using Jellyfin.Api.Models.StreamingDtos;
+using Jellyfin.Extensions;
 using MediaBrowser.Common.Configuration;
 using MediaBrowser.Common.Extensions;
 using MediaBrowser.Common.Net;
@@ -223,9 +224,17 @@ public class DynamicHlsHelper
                     sdrVideoUrl += "&AllowVideoStreamCopy=false";
 
                     var sdrOutputVideoBitrate = _encodingHelper.GetVideoBitrateParamValue(state.VideoRequest, state.VideoStream, state.OutputVideoCodec);
-                    var sdrOutputAudioBitrate = _encodingHelper.GetAudioBitrateParam(state.VideoRequest, state.AudioStream, state.OutputAudioChannels) ?? 0;
-                    var sdrTotalBitrate = sdrOutputAudioBitrate + sdrOutputVideoBitrate;
+                    var sdrOutputAudioBitrate = 0;
+                    if (EncodingHelper.LosslessAudioCodecs.Contains(state.VideoRequest.AudioCodec, StringComparison.OrdinalIgnoreCase))
+                    {
+                        sdrOutputAudioBitrate = state.AudioStream.BitRate ?? 0;
+                    }
+                    else
+                    {
+                        sdrOutputAudioBitrate = _encodingHelper.GetAudioBitrateParam(state.VideoRequest, state.AudioStream, state.OutputAudioChannels) ?? 0;
+                    }
 
+                    var sdrTotalBitrate = sdrOutputAudioBitrate + sdrOutputVideoBitrate;
                     var sdrPlaylist = AppendPlaylist(builder, state, sdrVideoUrl, sdrTotalBitrate, subtitleGroup);
 
                     // Provide a workaround for the case issue between flac and fLaC.