Stuttering when playing 4K MOV videos made with iPhone

Escrimark · November 2, 2020 at 8:50 AM

I installed LibreElec on a Raspberryi 4 (1GB RAM).

I run the good piece on an HD TV via HDMI (i.e. the TV does 1080p).

Unfortunately, even 4k videos created with the iPhone cannot be played back without massive jerking.

The files have 3840x2160 and approx. 45,000 kBit / s. or 25,000kBit / s CPU load soars).

Normal 4K media or 4K mp4 files with 15,000kBit / s are played back without any problems. Is this a hardware limitation or something wrong with the software?

Thank you in advance

MArk

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Ich habe LibreElec neu auf einem Raspberryi 4 (1GB RAM) installiert.

Ich betreibe das gute Stück an einem HD-TV via HDMI (d.h. der TV mach 1080p).

Leider lassen sich selbst mit dem iPhone erstellte 4k Videos nicht ohne massives Ruckeln wiedergeben.

Die Dateien haben 3840x2160 und ca. 45.000kBit/s. bzw. 25.000kBit/s CPU-Last schnellt hoch).

Normale 4K Medien oder 4K mp4-Dateien mit 15.000kBit/s werden ohne Probleme wiedergegeben. Ist das eine Hardwarebeschränkung, oder stimmt was mit der Software nicht?

Danke im Voraus

MArk

**CvH** · November 2, 2020 at 10:56 AM Official Post

can you upload some sample (10sec are enough) ?

Escrimark · November 2, 2020 at 3:23 PM

how does it work with the upload of a 4K file. For me it says the maximum in the forum is 1MB.

The log looks weird when I try to play a 4K mov.

Code

2020-11-02 16:22:50.602 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: loading setting definitions
2020-11-02 16:22:50.602 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: trying to load setting definitions from old format...
2020-11-02 16:22:50.608 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: loading setting values
2020-11-02 16:22:50.815 T:2194371440 WARNING: CRenderManager::WaitForBuffer - timeout waiting for buffer
2020-11-02 16:22:53.621 T:2889855856 WARNING: Previous line repeats 5 times.
2020-11-02 16:22:53.621 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: loading setting definitions
2020-11-02 16:22:53.621 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: trying to load setting definitions from old format...
2020-11-02 16:22:53.626 T:2889855856   DEBUG: CAddonSettings[plugin.video.emby]: loading setting values
2020-11-02 16:22:53.885 T:2194371440 WARNING: CRenderManager::WaitForBuffer - timeout waiting for buffer
2020-11-02 16:22:54.058 T:2786038640   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting definitions
2020-11-02 16:22:54.058 T:2786038640   DEBUG: CAddonSettings[plugin.video.youtube]: trying to load setting definitions from old format...
2020-11-02 16:22:54.064 T:2786038640   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting values
2020-11-02 16:22:54.081 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting definitions
2020-11-02 16:22:54.081 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: trying to load setting definitions from old format...
2020-11-02 16:22:54.088 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting values
2020-11-02 16:22:54.099 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting definitions
2020-11-02 16:22:54.099 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: trying to load setting definitions from old format...
2020-11-02 16:22:54.106 T:2399208304   DEBUG: CAddonSettings[plugin.video.youtube]: loading setting values
2020-11-02 16:22:54.402 T:2194371440 WARNING: CRenderManager::WaitForBuffer - timeout waiting for buffer
2020-11-02 16:22:56.641 T:2889855856 WARNING: Previous line repeats 4 times.

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