Problem on FireTV ...video freeze (4K)

[Hispanico957 9]

My friend (on wifi 5.0) has major problems with playback movies in 4K... movies stutter and freeze.

On my server i see this:

Restarting after playback error
Bitrate reduction due to quality settings
Restarting after playback error

How i can solve this ?

Thank

Hispa

 

Download.rar

Edited February 6 by Hispanico957

[Luke 37084]

 

Hi there, let's look at an example. Please attach the information requested in how to report a media playback issue. Thanks!

 

[Hispanico957 9]

Enclosed my server log and note:

My friend play these 4K movies:

13 Hours - The Secret Soldiers of Benghazi

12 soldiers

Quel treno per Yuma (2007) 4K.mkv

user: BeppeA

Time: 22:15

My friend send log debug

 

Await your reply

Thank

Hispa

Download.rar

Edited February 7 by Hispanico957

[Luke 37084]

Hi, what are you running Emby Server on? It looks like your server machine just can't transcode this quickly enough to be playable.

[Hispanico957 9]

5 ore fa, Luca ha detto:

Ciao, su cosa stai utilizzando Emby Server? Sembra che il tuo computer server non riesca a transcodificarlo abbastanza velocemente da essere riproducibile.

My Emby server is on QNAP TS-451D2

 

Hispa

Edited February 8 by Hispanico957

[rbjtech 4274]

3 hours ago, Hispanico957 said:

My Emby server is on QNAP TS-451D2

 

Hispa

And there is your answer - your NAS simply does not have enough processing power to transcode the 4K file in real time required for playback.

Alternatives are

• increase bandwidth on your upload/their download to ensure it can 'Direct Play' - and does not need to transcode.
• use multi copies (4k and non-4k and then restrict the 4k ones to local only)
• Buy newer hardware  - many more modern NAS devices have more powerful hardware inside (with Quicksync) allowing on the fly transcoding without issues.

If you enter the world of 4K, you need the equipment in order to play/share it I'm afraid ... 

[Hispanico957 9]

1 hour ago, rbjtech said:

And there is your answer - your NAS simply does not have enough processing power to transcode the 4K file in real time required for playback.

Alternatives are

• increase bandwidth on your upload/their download to ensure it can 'Direct Play' - and does not need to transcode.
• use multi copies (4k and non-4k and then restrict the 4k ones to local only)
• Buy newer hardware  - many more modern NAS devices have more powerful hardware inside (with Quicksync) allowing on the fly transcoding without issues.

If you enter the world of 4K, you need the equipment in order to play/share it I'm afraid ... 

PLS my QNAP is a modern NAS also equipped with Quicksync (for your information QuickSync work through Qnap app nas-Client)

Specific: Intel® Celeron® J4025 2-core/2-thread, 2,9 GHz. 4GB flash memory and with 8GB ram, 64-bit x86, Intel® HD Graphics 600

https://www.qnap.com/it-it/product/ts-451d2/specs/hardware

 

Hispa

 

P.S. this problem happened with an user connect with wifi

Edited February 8 by Hispanico957

[rbjtech 4274]

Sorry, yes you are correct, although it's a 7 year old cpu/gpu, the HD Graphics 600 does surprisingly have Quicksync.   I wrongly assumed it didn't.

However - looking at the ffmpeg log, even using quicksync (I guess a very early version of it), it is not able to process the video above 1.0x - ie realtime.   For flawless transcoding - you realistically need at least 1.5x, ideally 2x.   

22:22:53.573 elapsed=00:00:51.61 frame=  877 fps= 17 q=-0.0 size=N/A time=00:00:36.73 bitrate=N/A throttle=off speed=0.712x    
22:22:54.116 elapsed=00:00:52.15 frame=  889 fps= 17 q=-0.0 size=N/A time=00:00:37.47 bitrate=N/A throttle=off speed=0.718x    
22:22:54.672 elapsed=00:00:52.71 frame=  901 fps= 17 q=-0.0 size=N/A time=00:00:37.63 bitrate=N/A throttle=off speed=0.714x    
22:22:55.218 elapsed=00:00:53.25 frame=  913 fps= 17 q=-0.0 size=N/A time=00:00:38.14 bitrate=N/A throttle=off speed=0.716x    
22:22:55.754 elapsed=00:00:53.76 frame=  924 fps= 17 q=-0.0 size=N/A time=00:00:38.62 bitrate=N/A throttle=off speed=0.718x    
22:22:56.300 elapsed=00:00:54.31 frame=  934 fps= 17 q=-0.0 size=N/A time=00:00:39.13 bitrate=N/A throttle=off speed=0.721x  

 

Edited February 8 by rbjtech

[Hispanico957 9]

30 minutes ago, rbjtech said:

Siamo spiacenti, sì, hai ragione, anche se è una CPU/gpu vecchia di 7 anni, l'HD Graphics 600 ha sorprendentemente Quicksync. Ho erroneamente pensato che non fosse così.

Tuttavia, osservando il registro di ffmpeg, anche utilizzando QuickSync (suppongo una versione molto precoce), non è in grado di elaborare il video superiore a 1.0x, ovvero in tempo reale. Per una transcodifica impeccabile: realisticamente hai bisogno di almeno 1,5x, idealmente 2x.   

 

These are my settings/option...  PLS in which way i can solve ?

Thank

Hispa

[rbjtech 4274]

6 minutes ago, Hispanico957 said:

These are my settings/option...  PLS in which way i can solve ?

Same options as I originally said - your hardware unfortunately cannot transode quickly enough - so any one of the options below would resolve.

2 hours ago, rbjtech said:

And there is your answer - your NAS simply does not have enough processing power to transcode the 4K file in real time required for playback.

Alternatives are

• increase bandwidth on your upload/their download to ensure it can 'Direct Play' - and does not need to transcode.
• use multi copies (4k and non-4k and then restrict the 4k ones to local only)
• Buy newer hardware  - many more modern NAS devices have more powerful hardware inside (with Quicksync) allowing on the fly transcoding without issues.

If you enter the world of 4K, you need the equipment in order to play/share it I'm afraid ... 

 

[Luke 37084]

You could also try using the quicksync options instead of vaapi.

[Hispanico957 9]

1 hour ago, Luke said:

You could also try using the quicksync options instead of vaapi.

In which way? deseleting all Vaapi and left only quicksync ?

 

Thank

Hispa

[Luke 37084]

You could try that, yes.