Playing 4K 60 FPS videos without hardware acceleration (GPU decoding)

[babam]

My laptop with Intel i3 1115G4 is very bad for playing 4K 60 FPS videos without hardware acceleration (GPU decoding).
Video playback is very stuttering.

Maybe with a more powerful CPU like i5, i7 or Ryzen it will play videos smoothly.

For those who want to try it, here is an example video (10 seconds - 15.3MB) https://drive.google.com/uc?export=down ... 0WHy7CbkMK

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$ mpv av1-4k60fps.webm
$ ffplay av1-4k60fps.webm

Thanks.

[Rava]

My laptop with Intel i3 1115G4 is very bad for playing 4K 60 FPS videos without hardware acceleration (GPU decoding).

Did you try using SM-Windoze doing the same, aka having no specific GPU hardware acceleration active in your windows setup? (Usually most hardware developers use some kind of native video drivers in connection with SM-Windoze)
I am asking because it is normal that video playback, especially larger format files like 4K 60 FPS, being unable to be playing back without any native driver specific to your hardware.
Even SM-Windoze would show in that instance that non-native generic drivers are unable to do that flawlessly therefore my specific question on that.


I played your video using my native NV driver for older hardware (010-nvidia-340.108-k.5.4.30-porteus-v5.0-x86_64_rava.xzm - using, of course kernel 5.4.30-porteus) but I have older more or less inferior hardware and it utterly fails. While ffplay did not report anything mpv did report this:

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Audio/Video desynchronisation detected! Possible reasons include too slow
hardware, temporary CPU spikes, broken drivers, and broken files. Audio
position will not match to the video (see A-V status field).

Its full output:

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guest@porteus:/7/video/TEST$ mpv av1-4k60fps.webm 
 (+) Video --vid=1 (*) (av1 3840x2160 59.940fps)
 (+) Audio --aid=1 --alang=eng (*) (opus 2ch 48000Hz)
AO: [pulse] 48000Hz stereo 2ch float
[autoconvert] Converting yuv420p10 -> yuv420p
VO: [gpu] 3840x2160 yuv420p
AV: 00:00:00 / 00:00:10 (4%) A-V:  0.472 Dropped: 10

Audio/Video desynchronisation detected! Possible reasons include too slow
hardware, temporary CPU spikes, broken drivers, and broken files. Audio
position will not match to the video (see A-V status field).

AV: 00:00:09 / 00:00:10 (100%) A-V:  0.000 Dropped: 324

Exiting... (End of file)

[AcnapyxoB]

It's the same with Intel Core i5-4210M

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 (+) Video --vid=1 (*) (av1 3840x2160 59.940fps)
 (+) Audio --aid=1 --alang=eng (*) (opus 2ch 48000Hz)
AO: [pulse] 48000Hz stereo 2ch float
[ffmpeg/video] av1: No support for codec av1 profile 0.
[ffmpeg/video] av1: Your platform doesn't suppport hardware accelerated AV1 decoding.
[ffmpeg/video] av1: Failed to get pixel format.
Error while decoding frame (hardware decoding)!
VO: [gpu] 3840x2160 yuv420p10
AV: 00:00:00 / 00:00:10 (5%) A-V:  0.436 Dropped: 14

Audio/Video desynchronisation detected! Possible reasons include too slow
hardware, temporary CPU spikes, broken drivers, and broken files. Audio
position will not match to the video (see A-V status field).

AV: 00:00:01 / 00:00:10 (12%) A-V:  1.517 Dropped: 47
Audio device underrun detected.
AV: 00:00:02 / 00:00:10 (23%) A-V:  3.392 Dropped: 92
Audio device underrun detected.
AV: 00:00:02 / 00:00:10 (25%) A-V:  4.033 Dropped: 104
Audio device underrun detected.
AV: 00:00:02 / 00:00:10 (28%) A-V:  4.804 Dropped: 115
Audio device underrun detected.
AV: 00:00:09 / 00:00:10 (100%) A-V:  0.000 Dropped: 367

Exiting... (End of file)

...and similar with Core i5-8265U

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 (+) Video --vid=1 (*) (av1 3840x2160 59.940fps)
 (+) Audio --aid=1 --alang=eng (*) (opus 2ch 48000Hz)
AO: [pulse] 48000Hz stereo 2ch float
VO: [gpu] 3840x2160 yuv420p10
AV: 00:00:01 / 00:00:10 (13%) A-V:  0.480 Dropped: 58

Audio/Video desynchronisation detected! Possible reasons include too slow
hardware, temporary CPU spikes, broken drivers, and broken files. Audio
position will not match to the video (see A-V status field).

AV: 00:00:09 / 00:00:10 (100%) A-V:  0.000 Dropped: 430

Exiting... (End of file)

[babam]

@Rava,
My Porteus-5.0 of course has drivers for Intel GPU (intel-media-driver) and can play av1-4k60fps.webm smoothly.

Can a more powerful CPU be able to play 4K 60 FPS videos smoothly without hardware acceleration.

[babam]

It's the same with Intel Core i5-4210M
...and similar with Core i5-8265U

Thanks for sharing.

[AcnapyxoB]

Thanks for sharing.

The bad is that I tried with intel-media-driver (21.3.5) and it is not going smoothly.

[Rava]

Can a more powerful CPU be able to play 4K 60 FPS videos smoothly without hardware acceleration.

A very state of the art GPU might be able doing so. But I think we are the wrong forum.
A more specialized in video would probably more informative on that. E.g. http://www.doom9.org/index.html?/faqs.htm or http://forum.doom9.org/ might be more helpful? It says about itself "The definitive DVD backup resource" - but it is also about more generic video on PCs related stuff as well.

[fulalas]

On a Ryzen 2700X (8 cores + 8 threads) this snake/sloth video runs at 85% CPU load dropping no frames

CPUs are too generic for this heavy task. GPUs can do better because they have a dedicated pipeline for decoding videos.

[babam]

On a Ryzen 2700X (8 cores + 8 threads) this snake/sloth video runs at 85% CPU load dropping no frames

Thanks, Ryzen 7 2700X is very powerful, R7 2700X has 8 cores + 16 threads

[fulalas]

Well, technically the CPU has 16 threads, but 8 of them are physical cores and the other 8 are virtual (using idle parts of the physical pipeline).

[fulalas]

@babam, try your video again using these modules:

https://www.mediafire.com/file/fgchymgc ... 6_64-1.xzm

https://www.mediafire.com/file/qwzqbnv0 ... x86_64.xzm

https://www.mediafire.com/file/dufiquqx ... 6_64-2.xzm



EDIT: even faster: run the video using this exact command:

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/usr/bin/mpv av1-4k60fps.webm

If you want to improve video performance without having to run via terminal all the time, edit both /usr/local/bin/cell_hwdec and /usr/local/bin/mpv_hwdec and remove all instances of this:

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--video-sync=display-resample

[Rava]

https://www.mediafire.com/file/dufiquqx ... 6_64-2.xzm

Is this one really helping?
In my Port 5 I have this one already:

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ffmpeg version 4.4.1 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 11.2.0 (GCC)

Is your module a somehow patched ffmpeg version 4.4.1 without altering the version number in the module name?
────────────────────────────────────
Thanks for the tips on removing the

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--video-sync=display-resample

parts.

[babam]

@babam, try your video again using these modules:

EDIT: even faster: run the video using this exact command:

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/usr/bin/mpv av1-4k60fps.webm

If you want to improve video performance without having to run via terminal all the time, edit both /usr/local/bin/cell_hwdec and /usr/local/bin/mpv_hwdec and remove all instances of this:

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--video-sync=display-resample

Unfortunately I didn't get any difference in performance.

What is the difference between mpv av1-4k60fps.webm vs /usr/bin/mpv av1-4k60fps.webm

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$ which mpv
/usr/bin/mpv

[Rava]

What is the difference between mpv av1-4k60fps.webm vs /usr/bin/mpv av1-4k60fps.webm

There is no difference for you me thinks.

Unfortunately I didn't get any difference in performance.

Does ffplay work better for you?

[babam]

Does ffplay work better for you?

ffplay is worse than mpv.