transcoding issue on tizen emby 1.0.22 / Samsung KS8000

[Nightreaver 10]

Hello

 

some of my videos get transcoded cause they have 7.1 audio.

Please add same option for audio transcoding as you have for video transcoding!

 

 

I noticed this cause I have a movie with dual language in 5.1 and 7.1, and 7.1 gets transcoded while 5.1 not.

transcode-log  ( https://pastebin.com/swcwDBfu     )

 

This video plays fine for the 5.1 audio, but not for 7.1 audio.

But beside this, i dont know why video gets transcoded with 7.1 aswell, not just audio.

Edited April 3, 2017 by Nightreaver

[Luke 42077]

link not valid.

[Nightreaver 10]

link not valid.

because the bracket should not be part of the link - fixed it though

 

So the 7.1 audio is TrueHD, why does it get transcoded?

 

This gets transcoded 

 

 

Audio #2

ID : 3

Format : TrueHD

Format profile : TrueHD+Atmos / TrueHD

Codec ID : A_TRUEHD

Duration : 2 h 3 min

Bit rate mode : Variable

Bit rate : 4 834 kb/s

Maximum bit rate : 7 893 kb/s

Channel(s) : Object Based / 8 channels

Channel positions : Object Based / Front: L C R, Side: L R, Back: L R, LFE

Sampling rate : / 48.0 kHz

Frame rate : 1 200.000 FPS (40 spf)

Compression mode : Lossless

Stream size : 4.16 GiB (7%)

Language : English

Default : No

Forced : No

 

 

this 7.1 not 

 

Audio #2

ID : 3

Format : DTS

Format/Info : Digital Theater Systems

Format profile : MA / Core

Mode : 16

Format settings, Endianness : Big

Codec ID : A_DTS

Duration : 1 h 56 min

Bit rate mode : Variable / Constant

Bit rate : 2 525 kb/s / 1 509 kb/s

Channel(s) : 8 channels / 6 channels

Channel positions : Front: L C R, Side: L R, Back: L R, LFE / Front: L C R, Side: L R, LFE

Sampling rate : 48.0 kHz

Frame rate : 93.750 FPS (512 spf)

Bit depth : 16 bits

Compression mode : Lossless / Lossy

Delay relative to video : 2 ms

Stream size : 2.05 GiB (10%)

Language : English

Default : No

Forced

 

Edited April 3, 2017 by Nightreaver

[Luke 42077]

The TV does not support TrueHD therefore it transcodes when that particular audio track is selected, which in this case it is.

[FrostByte 5392]

In addition the KS8000 has a DTS decoder so even though it doesn't support DTS-HD natively either the DTS decoder will still extract the lossy DTS core and play it without it needing transcoding.

 

http://downloadcenter.samsung.com/content/UM/201612/20161209095658187/ENG_US-JZATSCK-1.2.2.pdf

Edited April 3, 2017 by FrostByte

[Nightreaver 10]

The TV does not support TrueHD therefore it transcodes when that particular audio track is selected, which in this case it is.

Okay, so if the audio is transcoded, why does it also transcode the Video? If it could just direct-copy it instead? I assume it would take less resources?

[SamES 1057]

I will confirm tonight but I'm pretty sure that's what should be happening

[SamES 1057]

So this has TrueHD.  The video stream is being copied, audio stream is being converted.

 

 

It probably depends on what the source video codec is (in your case 4K HEVC).  I suspect it needs to be supported by the streaming protocol and this may be causing transcoding