Server===
plex server Version 1.1.4.2757
freenas FreeNAS-9.10.1 (freebsd)
Pentium G3258 @ 3.20GHz
8GB ram
Client===
XBox One S app version 1.7.1.0
xbox one s audio out: optical, bitstream, dolby digital
Content===
M2TS file: h264 + DTS-MA 5.1
hd_dts_hd_master_audio_sound_check_5_1_lossless.m2ts
download at http://kodi.wiki/view/Samples
Scenario===
Plex server is directstream transcoding the DTS-MA 5.1 --> multichannel AAC
AAC has a bug as I reported at https://forums.plex.tv/discussion/235657/plex-svr-1-1-4-2757-corrupting-rear-channels-with-transcode-of-dts-aac-on-xbox-one-s
Therefore, I created a custom plex server profile and removed aac and ac3.
copied Xbox One.xml
from /usr/local/share/plexmediaserver/Resources/Profiles
to /usr/local/plexdata/Plex Media Server/Profiles
edited the file and changed TranscodeTargets VideoProfile
from audioCodec=“aac,ac3,eac3,mp3”
to audioCodec=“eac3”
Bug===
Errors are reported in XBox Plex app and the Plex Media Server.log
The app reports “Playback error. There was a problem playing this item.”
The log file reports "MDE: unable to find a working transcode profile for audio stream
Workaround===
None known.
Notes===
Recent versions of ffmpeg do support encoding into e-ac3; it is limited to 5.1
XBox One does support playing e-ac3 streams, as can be proven by playing an m2ts file with (h264 + DD+ 7.1) content
Such content is not directplayed by Plex. Plex strangely direct streams both the video and audio as can be seen in the Plex Media Server.log
INFO - [Plex for Xbox One] [MDE] Finished analysis of 1080 (mpegts, h264, eac3, 41, high) INFO - [Plex for Xbox One] canPlay: true INFO - [Plex for Xbox One] canDirectPlay: false INFO - [Plex for Xbox One] canDirectStreamVideo: true INFO - [Plex for Xbox One] canDirectStreamAudio: true INFO - [Plex for Xbox One] bitrate: 11169 INFO - [Plex for Xbox One] videoResolution: 1080 INFO - [Plex for Xbox One] [PDE] Player decision INFO - [Plex for Xbox One] Player: html INFO - [Plex for Xbox One] Protocol: hls INFO - [Plex for Xbox One] Direct Play: false ... DEBUG - Job running: FFMPEG_EXTERNAL_LIBS='/usr/local/plexdata/Plex\ Media\ Server/Codecs/6209f91-1114-freebsd-x86_64/' XDG_CACHE_HOME='/usr/local/plexdata/Plex Media Server/Cache/' XDG_DATA_HOME='/usr/local/share/plexmediaserver/Resources/' X_PLEX_TOKEN='xxxxxxxxxxxxxxxxxxxx' '/usr/local/share/plexmediaserver/Plex Transcoder' '-codec:#0x1011' 'h264' '-noaccurate_seek' '-i' '/media/Misc/hd-dolby-digital-plus-channel-check-lossless.m2ts' '-map' '0:#0x1011' '-codec:0' 'copy' '-map' '0:#0x1100' '-codec:1' 'copy' '-copypriorss:1' '0' '-segment_format' 'mpegts' '-f' 'segment' '-flags' '-global_header' '-segment_time' '10' '-segment_start_number' '0' '-segment_copyts' '1' '-segment_time_delta' '0.0625' '-max_delay' '5000000' '-avoid_negative_ts' 'disabled' '-map_metadata' '-1' '-map_chapters' '-1' 'media-%05d.ts' '-start_at_zero' '-copyts' '-vsync' 'cfr' '-y' '-nostats' '-loglevel' 'quiet' '-loglevel_plex' 'error' '-progressurl' 'http://127.0.0.1:32400/video/:/transcode/session/bo4onsm3zv33/progress'
