Force mp3 when playback fails because of unsupported aac stream

components/ItemGrid/LoadVideoContentTask.bs

@@ -54,6 +54,7 @@ sub loadItems()
     forceTranscoding = false
 
     m.top.content = [LoadItems_VideoPlayer(id, mediaSourceId, audio_stream_idx, forceTranscoding)]
+    m.top.forceMp3 = false
 end sub
 
 function LoadItems_VideoPlayer(id as string, mediaSourceId = invalid as dynamic, audio_stream_idx = 1 as integer, forceTranscoding = false as boolean) as dynamic
@@ -157,7 +158,7 @@ sub LoadItems_AddVideoContent(video as object, mediaSourceId as dynamic, audio_s
     if not isValid(mediaSourceId) then mediaSourceId = video.id
     if meta.live then mediaSourceId = ""
 
-    m.playbackInfo = ItemPostPlaybackInfo(video.id, mediaSourceId, audio_stream_idx, subtitle_idx, playbackPosition)
+    m.playbackInfo = ItemPostPlaybackInfo(video.id, mediaSourceId, audio_stream_idx, subtitle_idx, playbackPosition, m.top.forceMp3)
     if not isValid(m.playbackInfo)
         video.errorMsg = "Error loading playback info"
         video.content = invalid
@@ -174,7 +175,7 @@ sub LoadItems_AddVideoContent(video as object, mediaSourceId as dynamic, audio_s
             video.SelectedSubtitle = defaultSubtitleIndex
             subtitle_idx = defaultSubtitleIndex
 
-            m.playbackInfo = ItemPostPlaybackInfo(video.id, mediaSourceId, audio_stream_idx, subtitle_idx, playbackPosition)
+            m.playbackInfo = ItemPostPlaybackInfo(video.id, mediaSourceId, audio_stream_idx, subtitle_idx, playbackPosition, m.top.forceMp3)
             if not isValid(m.playbackInfo)
                 video.errorMsg = "Error loading playback info"
                 video.content = invalid

components/ItemGrid/LoadVideoContentTask.xml

@@ -18,6 +18,7 @@
     <field id="studioIds" type="string" value="" />
     <field id="genreIds" type="string" value="" />
     <field id="view" type="string" value="" />
+    <field id="forceMp3" type="boolean" value="false" />
     <!-- Total records available from server-->
     <field id="totalRecordCount" type="int" value="-1" />
     <field id="content" type="array" />

components/video/VideoPlayerView.bs

@@ -34,7 +34,6 @@ sub init()
 
     m.playbackTimer = m.top.findNode("playbackTimer")
     m.bufferCheckTimer = m.top.findNode("bufferCheckTimer")
-    m.top.observeField("state", "onState")
     m.top.observeField("content", "onContentChange")
     m.top.observeField("selectedSubtitle", "onSubtitleChange")
     m.top.observeField("audioIndex", "onAudioIndexChange")
@@ -397,6 +396,8 @@ sub onVideoContentLoaded()
         return
     end if
 
+    m.top.observeField("state", "onState")
+
     m.top.content = videoContent[0].content
     m.top.PlaySessionId = videoContent[0].PlaySessionId
     m.top.videoId = videoContent[0].id
@@ -639,6 +640,17 @@ sub onState(msg)
 
         if not m.playReported and m.top.transcodeAvailable
             m.top.retryWithTranscoding = true ' If playback was not reported, retry with transcoding
+        else if m.top.errorStr = "decoder:pump:Unsupported AAC stream."
+            m.log.info("retrying video with mp3 audio stream", m.currentItem.id, m.top.SelectedSubtitle, m.top.audioIndex)
+
+            m.top.unobserveField("state")
+            m.LoadMetaDataTask.forceMp3 = true
+            m.LoadMetaDataTask.selectedSubtitleIndex = m.top.SelectedSubtitle
+            m.LoadMetaDataTask.selectedAudioStreamIndex = m.top.audioIndex
+            m.LoadMetaDataTask.itemId = m.currentItem.id
+            m.LoadMetaDataTask.observeField("content", "onVideoContentLoaded")
+
+            m.LoadMetaDataTask.control = "RUN"
         else
             ' If an error was encountered, Display dialog
             showPlaybackErrorDialog(tr("Error During Playback"))

components/video/VideoPlayerView.xml

@@ -20,6 +20,7 @@
     <field id="retryWithTranscoding" type="boolean" value="false" />
     <field id="isTranscoded" type="boolean" />
     <field id="transcodeReasons" type="array" />
+    <field id="forceMp3" type="boolean" value="false" />
 
     <field id="videoId" type="string" />
     <field id="mediaSourceId" type="string" />

source/api/Items.bs

@@ -13,7 +13,7 @@ function ItemGetPlaybackInfo(id as string, startTimeTicks = 0 as longinteger)
     return getJson(resp)
 end function
 
-function ItemPostPlaybackInfo(id as string, mediaSourceId = "" as string, audioTrackIndex = -1 as integer, subtitleTrackIndex = -1 as integer, startTimeTicks = 0 as longinteger)
+function ItemPostPlaybackInfo(id as string, mediaSourceId = "" as string, audioTrackIndex = -1 as integer, subtitleTrackIndex = -1 as integer, startTimeTicks = 0 as longinteger, forceMp3 = false as boolean)
     params = {
         "UserId": m.global.session.user.id,
         "StartTimeTicks": startTimeTicks,
@@ -49,24 +49,14 @@ function ItemPostPlaybackInfo(id as string, mediaSourceId = "" as string, audioT
             ' TODO: Remove this after server adds support for transcoding AAC from one profile to another
             if selectedAudioStream.Codec <> invalid and LCase(selectedAudioStream.Codec) = "aac"
                 if selectedAudioStream.Profile <> invalid and LCase(selectedAudioStream.Profile) = "main" or LCase(selectedAudioStream.Profile) = "he-aac"
-                    for each rule in deviceProfile.TranscodingProfiles
-                        if rule.Container = "ts" or rule.Container = "mp4"
-                            if rule.AudioCodec = "aac"
-                                rule.AudioCodec = "mp3"
-                            else if rule.AudioCodec.Left(4) = "aac,"
-                                rule.AudioCodec = mid(rule.AudioCodec, 5)
-
-                                if rule.AudioCodec.Left(3) <> "mp3"
-                                    rule.AudioCodec = "mp3," + rule.AudioCodec
-                                end if
-                            end if
-                        end if
-                    end for
+                    forceMp3 = true
                 end if
             end if
         end if
     end if
 
+    if forceMp3 then forceMp3Audio(deviceProfile)
+
     req = APIRequest(Substitute("Items/{0}/PlaybackInfo", id), params)
     req.SetRequest("POST")
     return postJson(req, FormatJson({ "DeviceProfile": deviceProfile }))
@@ -538,3 +528,20 @@ function TVEpisodeShuffleList(show_id as string)
 
     return data
 end function
+
+' updates the device profile we send the server to force mp3 audio transcoding instead of the default aac
+sub forceMp3Audio(deviceProfile as object)
+    for each rule in deviceProfile.TranscodingProfiles
+        if rule.Container = "ts" or rule.Container = "mp4"
+            if rule.AudioCodec = "aac"
+                rule.AudioCodec = "mp3"
+            else if rule.AudioCodec.Left(4) = "aac,"
+                rule.AudioCodec = mid(rule.AudioCodec, 5)
+
+                if rule.AudioCodec.Left(3) <> "mp3"
+                    rule.AudioCodec = "mp3," + rule.AudioCodec
+                end if
+            end if
+        end if
+    end for
+end sub