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Transcoding instead of DirectPlay Samsung Q80T Video level 5.2


Aliamir37
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Aliamir37

Based on the Samsung documentations, Q80T supports video level 5.2, but my Emby app (latest version installed with USB) says this level is not supported and transcodes the video. 

Is there any solution for this? 

Thanks, 

 
Quote

 

https://developer.samsung.com/smarttv/develop/specifications/media-specifications/2020-tv-video-specifications.html
Video Decoder Limitations
  • H.264 FHD: Level 4.2 supported (FMO/ASO/RS not supported).

  • H.264 UHD: Level 5.1 supported.

  • HEVC FHD: Level 4.1 supported.

  • HEVC UHD: Level 5.2 supported.

  • HEVC 8K : Level 6.1 supported. (8K only)

  • HEVC: Supported only for MKV/MP4/TS containers.

  • VC-1 AP L4: Not supported.

  • GMC 2 and higher: Not supported.

  • MVC: Partially supported.

 

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Edited by Aliamir37
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FrostByte

It's just the premium sets that support 5.2.  So you would not only have to check for Tizen >= 5.5 (2021 sets also), but also check the model

 

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SamES
2 hours ago, Aliamir37 said:

Based on the Samsung documentations, Q80T supports video level 5.2, but my Emby app (latest version installed with USB) says this level is not supported and transcodes the video. 

Can you please port your media info for this file?  My understanding is it's 5.2 for x265/HEVC but still only 5.1 for x264

What file are you trying to play?

1 hour ago, FrostByte said:

So you would not only have to check for Tizen >= 5.5 (2021 sets also), but also check the model

This might be tricky.  We can get the model, but decoding that would be painful.  I haven't seen a method to get the model group but I'll have another look.

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Aliamir37
21 minutes ago, SamES said:

Can you please port your media info for this file?  My understanding is it's 5.2 for x265/HEVC but still only 5.1 for x264

What file are you trying to play?

This might be tricky.  We can get the model, but decoding that would be painful.  I haven't seen a method to get the model group but I'll have another look.

Here is the media info:

My TV is one of the premium ones. 

16A4A543-95E0-4265-8117-E6B61821B826.jpeg

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Happy2Play

So it is above the spec limit per the codec. @Aliamir37

H.264 UHD: Level 5.1 supported.

But this is the second recent topic on the issue of 5.2 in H264.

https://emby.media/community/index.php?/topic/96161-transcoding-whats-should-be-direct-play-4k-very-slow

 

Edited by Happy2Play
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SamES

Can you confirm that it does play correctly without transcoding (ie: from a USB drive connected directly to the TV)

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Aliamir37
2 minutes ago, SamES said:

Can you confirm that it does play correctly without transcoding (ie: from a USB drive connected directly to the TV)

No. I didn’t try with USB. 

I think you are right it supports level 5.2 only for x265. 

Another question, since it has to transcode, is there anyway to move the timeline of video on tv? I only have 10s forward and backward in TV but in PC I can select middle of the timeline for example. It would be great if that was possible on TV too. Moving forward with 10s or 30s steps while transcoding is painful. 
thank you!

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FrostByte

According to the manual for 2020 and 2021 Premium sets

 

H.264 FHD: Level 4.2 supported (FMO/ASO/RS not supported).
H.264 UHD: Level 5.1 supported.
HEVC FHD: Level 4.1 supported.
HEVC UHD: Level 5.2 supported.
HEVC 8K : Level 6.1 supported. (8K only)
HEVC: Supported only for MKV/MP4/TS containers.
VC-1 AP L4: Not supported.
GMC 2 and higher: Not supported.
MVC: Partially supported.

so ya according to the manual H265 4K only for 5.2 and only for Premium TV grouping. 

Not saying it doesn't work though, that's just what Samsung supports.  There's always those edge cases where it works, but it isn't fully supported.

Edited by FrostByte
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SamES
13 hours ago, Happy2Play said:

But this is the second recent topic on the issue of 5.2 in H264

Curiouser and curiouser!.....

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