From c4b7dbf40c15a2ae8b7092b11f6c6f7a93d343ed Mon Sep 17 00:00:00 2001
From: Charles Ewert <cewert@gmail.com>
Date: Sun, 1 Oct 2023 20:18:40 -0400
Subject: [PATCH] force aac 5.1 to use mkv when preserving multichannel audio

---
 components/ItemGrid/LoadVideoContentTask.brs | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/components/ItemGrid/LoadVideoContentTask.brs b/components/ItemGrid/LoadVideoContentTask.brs
index 31c10e3e7..736198a18 100644
--- a/components/ItemGrid/LoadVideoContentTask.brs
+++ b/components/ItemGrid/LoadVideoContentTask.brs
@@ -229,10 +229,16 @@ sub addVideoContentURL(video, mediaSourceId, audio_stream_idx, fully_external)
                 print "Users receiver can not decode the selected multichannel audio stream"
                 ' check to see if the receiver can decode our preferred audio codec
                 preferredCodec = "ac3"
-                if m.global.session.user.settings["playback.forceDTS"]
-                    if selectedAudioStream.Container = "webm" or selectedAudioStream = "mkv"
+                forceMKV = false
+                if selectedAudioStream.Container = "webm" or selectedAudioStream = "mkv"
+                    if m.global.session.user.settings["playback.forceDTS"]
                         preferredCodec = "dts"
                     end if
+                else
+                    ' if the file is aac and not mkv, force container to be mkv
+                    if selectedAudioStream.Codec = "aac"
+                        forceMKV = true
+                    end if
                 end if
                 if di.CanDecodeAudio({ Codec: preferredCodec, ChCnt: selectedAudioStream.Channels, PassThru: 1 }).Result
                     print "Attempting to transcode audio to our preferred multichannel codec"
@@ -240,6 +246,9 @@ sub addVideoContentURL(video, mediaSourceId, audio_stream_idx, fully_external)
                     ' otherwise the roku device will downmix aac/opus to stereo
                     params.Delete("Static")
                     params.audioCodec = preferredCodec
+                    if forceMKV
+                        params.container = "mkv"
+                    end if
                     video.isTranscoded = true
                     video.directplaysupported = false
                     params.transcodeReasons = "Switching audio codecs to preserve multichannel audio support"