Hi, I’m new to LibreELEC. My friend gave me his Chromebook R11 CB5-132T - Tech Specs | Laptops | Acer United Kingdom chrome book for me to try this. I’m booting and running LibreELEC on USB and passing through audio to AG receiver. HEVC 1080p videos playing flawless but 2160p videos playing very slow to the point it is unwatchable. USB os is on usb 2 and I’m playing video from usb 3 ssd. Hardware video decoding is also enabled. I’m not sure if this device can handle this. Please advise. Thanks!
4K Video playing very slow
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GJTV -
January 6, 2020 at 6:00 PM -
Thread is Unresolved
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That processor is relatively old. There is no way it will support HEVC software decoding at 2160p (and it lacks the necessary hardware acceleration). You will be able to play some 4k files using the AVC codec, but nothing ripped from a 4k blu-ray without re-encoding.
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Thank you for the response. I tried 4K because the info on the following site said this graphic processor can play 4K hevc Intel HD Graphics 400 (Braswell) - NotebookCheck.net Tech
but like you said it could be the cpu. Wish if there is any work around for it. -
Access your device via SSH and use vainfo to check which acceleration is supported by your HW/SW.
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I tried the command vainfo. this is what came up:
# vainfo
libva info: VA-API version 1.5.0
libva info: va_getDriverName() returns 0
libva info: Trying to open /usr/lib/dri/i965_drv_video.so
libva info: Found init function __vaDriverInit_1_5
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.5 (libva 2.5.0)
vainfo: Driver version: Intel i965 driver for Intel(R) CherryView - 2.3.0
vainfo: Supported profile and entrypoints
VAProfileMPEG2Simple : VAEntrypointVLD
VAProfileMPEG2Simple : VAEntrypointEncSlice
VAProfileMPEG2Main : VAEntrypointVLD
VAProfileMPEG2Main : VAEntrypointEncSlice
VAProfileH264ConstrainedBaseline: VAEntrypointVLD
VAProfileH264ConstrainedBaseline: VAEntrypointEncSlice
VAProfileH264Main : VAEntrypointVLD
VAProfileH264Main : VAEntrypointEncSlice
VAProfileH264High : VAEntrypointVLD
VAProfileH264High : VAEntrypointEncSlice
VAProfileH264MultiviewHigh : VAEntrypointVLD
VAProfileH264MultiviewHigh : VAEntrypointEncSlice
VAProfileH264StereoHigh : VAEntrypointVLD
VAProfileH264StereoHigh : VAEntrypointEncSlice
VAProfileVC1Simple : VAEntrypointVLD
VAProfileVC1Main : VAEntrypointVLD
VAProfileVC1Advanced : VAEntrypointVLD
VAProfileNone : VAEntrypointVideoProc
VAProfileJPEGBaseline : VAEntrypointVLD
VAProfileJPEGBaseline : VAEntrypointEncPicture
VAProfileVP8Version0_3 : VAEntrypointVLD
VAProfileVP8Version0_3 : VAEntrypointEncSlice
VAProfileHEVCMain : VAEntrypointVLD
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- Official Post
4K videos tend to be 10bit HEVC files, your Chromebook only does 8bit via GPU decoding.
So for 10bit videos, the under-powered CPU needs to step in, but is unfortunately not up to the task.
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Thank you. Is there any device or RPI 4 configuration you can recommend for my needs?
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picked up RPI 4 to try on. it can play 4k but I'm not seeing my receiver name in system/audio/Audio output device.
I can see my avr name when I run Chromebook.
So, I'm not able to choose audio passthrough for DTS-HD and TrueHD.
Any ways to make rpi4 to show my receiver?
thanks.
