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LG Streaming Profiles Compatibility Issue


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#1 cryzis OFFLINE  

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Posted 01 January 2018 - 01:59 PM

I was testing this app to see what files could be direct played. It looks like the TV can handle all video formats and most audio formats (still waiting to test TrueHD which I don't think will work)

 

The issue I discovered is that the only way to get the server to direct play some of these files is to disable video/audio/and remuxing for the user. It seems from the logs that the server checks the TVs profiles for compatibility, doesn't find it so it starts to transcode/remux. 

 

Whatever method is being used to detect compatibility on these TVs looks to be incorrect.

 

Is this a known issue?



#2 Luke OFFLINE  

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Posted 01 January 2018 - 02:00 PM

hi there, can we take a look at an example? please attach the information requested in how to report a media playback issue. thanks !



#3 cryzis OFFLINE  

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Posted 01 January 2018 - 02:28 PM

Here are the logs. In this example I first played The Expendables 3 (2014) under a user account that had video/audio/remuxing disabled. It direct played, this file has a TrueHD audio stream.

 

I then enabled video/audio/remuxing and after pressing play the screen was black for about 30 seconds while the server switched from direct play to transcoding. The transcode began and the video started playing.

 

So even though the file can be direct played the server for some reason doesn't see this capability in the TVs profiles so it forces transcoding.

 

 

Attached Files



#4 Luke OFFLINE  

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Posted 01 January 2018 - 03:26 PM

Can you please copy and paste the media info of this file from the web app into here? thanks.



#5 cryzis OFFLINE  

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Posted 02 January 2018 - 10:06 AM

As requested

Media Info
Video CodecHEVC
ProfileMain 10
Level153
Resolution3840x2160
Aspect ratio16:9
AnamorphicNo
InterlacedNo
Framerate23.9760246
Bitrate60868 kbps
Pixel formatyuv420p10le
Ref frames1
Title4K HEVC
Audio Languageeng
CodecTRUEHD
Layout7.1
Channels8 ch
Sample rate48000 Hz
Bit depth24 bit
DefaultYes
TitleEng TRUEHD 7.1 Default
Audio Languageeng
CodecAC3
Layout5.1
Channels6 ch
Bitrate640 kbps
Sample rate48000 Hz
DefaultNo
TitleEng Dolby Digital 5.1
Containermkv
Path/bfp/Media/Movies/The Expendables 3 (2014)/The Expendables 3 (2014).mkv


#6 Luke OFFLINE  

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Posted 02 January 2018 - 02:52 PM

Ok, what model LG is this?



#7 cryzis OFFLINE  

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Posted 02 January 2018 - 04:42 PM

OLED55C6P So the LG 2016 Model.



#8 Luke OFFLINE  

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Posted 02 January 2018 - 04:47 PM

Do you have an audio receiver that supports truehd? when you force direct play does the truehd get passed all the way to your receiver? thanks.



#9 cryzis OFFLINE  

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Posted 02 January 2018 - 05:19 PM

Audio is being played through the TV's speakers. Which must be getting converted by the TV? So I think the TV accepts the codec but converts it for playback.

 

My understanding is that only 2017 models support TrueHD passthrough.



#10 Luke OFFLINE  

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Posted 02 January 2018 - 09:02 PM

Yea I think we'll have to adjust the app for the new models, thanks.



#11 cryzis OFFLINE  

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Posted 02 January 2018 - 11:21 PM

Thanks for looking into it!



#12 robawarner OFFLINE  

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Posted 03 January 2018 - 06:09 AM

Hey, just to weigh in. I have a new 43UJ670V 2017 TV, I've edited the LG DLNA profile to allow direct play for all, however it still transcodes for anything with TrueHD audio too (also, if I try to change audio source on a movie with multiple audio tracks to a non TrueHD emby crashes)

 

Let me know if there's any info I can provide to help :)


Edited by robawarner, 03 January 2018 - 06:40 AM.


#13 Luke OFFLINE  

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Posted 03 January 2018 - 09:46 AM

The dlna profile won't affect the app. Thanks.

#14 tonytwist OFFLINE  

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Posted 14 January 2018 - 11:30 PM

Hi all,
I'm on a 2017 b7 OLED with emby v104 and have no issues direct playing HEVC 4k video by editing the DLNA profile, but trueHD and DTS-HD will not pass thru. I get downgraded to plain DD5.1 or DTS.
Apologies if this has already been covered. My understanding is that the 2017 models can pass thru these formats. Is that correct? Limitation of the emby app?

Thanks,

#15 andyblac644 OFFLINE  

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Posted 15 January 2018 - 06:58 AM

Hi all,
I'm on a 2017 b7 OLED with emby v104 and have no issues direct playing HEVC 4k video by editing the DLNA profile, but trueHD and DTS-HD will not pass thru. I get downgraded to plain DD5.1 or DTS.
Apologies if this has already been covered. My understanding is that the 2017 models can pass thru these formats. Is that correct? Limitation of the emby app?

Thanks,

 

 

I believe no 2017 can do DTS-HD,

The manual is accurate. Marketing website is not

 
HDMI Audio Supported Format: DTS (44.1 kHz / 48 kHz), Dolby Digital / Dolby Digital Plus (32 kHz / 44.1 kHz / 48 kHz), PCM (32 kHz / 44.1 kHz / 48 kHz / 96 kHz / 192 kHz) (Depending on model)
 
 
Dolby TrueHD was recently added in Oct 2017 firmware


#16 Luke OFFLINE  

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Posted 15 January 2018 - 11:47 AM

Thanks for the info !

#17 tonytwist OFFLINE  

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Posted 15 January 2018 - 12:01 PM

Thanks guys.

In that case, TrueHD will still not pass thru, it is downgraded to DD5.1

Let me know if I can gather any additional info to help.

#18 andyblac644 OFFLINE  

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Posted 15 January 2018 - 01:01 PM

Thanks guys.

In that case, TrueHD will still not pass thru, it is downgraded to DD5.1

Let me know if I can gather any additional info to help.

 

 

maybe try the movie on a USB stick and play with the LG media player, to confirm your TV can play TrueHD



#19 Luke OFFLINE  

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Posted 15 January 2018 - 01:26 PM

The next release of the app will have direct play improvements. thanks guys.



#20 tonytwist OFFLINE  

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Posted 15 January 2018 - 05:41 PM

So I went back and tried running my ps4 through the b7 OLED with pass thru audio to my marantz reciever. Result is: both TrueHD and DTS-HD will not work. DTS-HD downgrades to DTS and TrueHD just outputs static.
Both of these test movies light up the proper audio when directly connected thru the receiver.
The tv is running os version 4.70.36 from December.

Long story short, the emby app may not be the issue here. I think the b7 (2017) still has a problem with passing thru TrueHD.




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