JMCC

Corrected. Merry Christmas!

Enviado desde mi moto g(6) plus mediante Tapatalk

Corrected. Merry Christmas!

Enviado desde mi moto g(6) plus mediante Tapatalk

dist-upgrade does not work either. I had to "force" by issuing code { font-family: Consolas,"courier new"; color: crimson; background-color: rgba(0, 0, 0, 0.2); padding: 2px; font-size: 105%; } apt-get install media-buster-legacy-rk3399
This also removed mpv and installed mpv classic.

New packages uploaded to the repos (it may take some hours to synchronize).
Bug fixes: X Desktop no longer restarted on package install, so it can be installed from a desktop session (NOTE: Since the old package is still going to restart X when uninstalled, it is recommended to do this update from console). MPV now is not failing when it cannot create EGL surface (it will just default to standard x11). CEC is now working on several boards (tested in RockPro64 and Rockpi 4B). New features: MPV is now RKMPP accelerated, and allows 4K YouTube Playback (see instructions here).

New packages uploaded to the repos (it may take some hours to synchronize).
Bug fixes: X Desktop no longer restarted on package install, so it can be installed from a desktop session (NOTE: Since the old package is still going to restart X when uninstalled, it is recommended to do this update from console). MPV now is not failing when it cannot create EGL surface (it will just default to standard x11). CEC is now working on several boards (tested in RockPro64 and Rockpi 4B). New features: MPV is now RKMPP accelerated, and allows 4K YouTube Playback (see instructions here).

Haha, you know, crap happens. Upstream Buster is a super-stable distro (IMO the best Debian so far). The problem is with the Legacy kernel, it's a bit messy since there are so many different RK3399 boards, from different vendors with different configurations.
 
Problem was also present in NanoPC-T4. I confirm that building new images fixes the problem here too.
 
 

New packages uploaded to the repos (it may take some hours to synchronize).
Bug fixes: X Desktop no longer restarted on package install, so it can be installed from a desktop session (NOTE: Since the old package is still going to restart X when uninstalled, it is recommended to do this update from console). MPV now is not failing when it cannot create EGL surface (it will just default to standard x11). CEC is now working on several boards (tested in RockPro64 and Rockpi 4B). New features: MPV is now RKMPP accelerated, and allows 4K YouTube Playback (see instructions here).

Glad to hear that
 
The funny thing is that the kernel switching never worked for rk3399 family as it is a bit of a frankenstein...
After https://github.com/armbian/config/pull/127 is merged and published it should work as expected.

New packages uploaded to the repos (it may take some hours to synchronize).
Bug fixes: X Desktop no longer restarted on package install, so it can be installed from a desktop session (NOTE: Since the old package is still going to restart X when uninstalled, it is recommended to do this update from console). MPV now is not failing when it cannot create EGL surface (it will just default to standard x11). CEC is now working on several boards (tested in RockPro64 and Rockpi 4B). New features: MPV is now RKMPP accelerated, and allows 4K YouTube Playback (see instructions here).

New packages uploaded to the repos (it may take some hours to synchronize).
Bug fixes: X Desktop no longer restarted on package install, so it can be installed from a desktop session (NOTE: Since the old package is still going to restart X when uninstalled, it is recommended to do this update from console). MPV now is not failing when it cannot create EGL surface (it will just default to standard x11). CEC is now working on several boards (tested in RockPro64 and Rockpi 4B). New features: MPV is now RKMPP accelerated, and allows 4K YouTube Playback (see instructions here).

Well, it wasn't either VPU accelerated in Bionic, just GPU accelerated -- that is, the video display layer is GPU accelerated, but the frame decoding is done via software.
 
IIRC, the Bionic script had the extension "h264ify" enabled by default, which I could not do in this version of Buster. Just search the Chrome App Store for "h264ify", install it and it should make the difference (h264 is less cpu-demanding than vp9).
 
You can also enable the ScummVM addon in Kodi, and play Monkey Island 

That was the intention, and the purpose of all the testing we did 

Good! We cleared out the libcec part.
 
Now, let us try some kernel tweaks. Install these kernel+dtb packages, reboot and try kodi again: https://users.armbian.com/jmcc/packages/kernel-rk64/

Works now. Boy I'm happy. I rarely use console. Never had issue's with the terminal. Only when I've got crashes I use console to reboot. 

Now I'm going to relax and watch a movie with this  
Already done something else today, sandpapered the contact surface of the heatsink of the RockPiX. It was bubbled and painted black. Overheated to 80C and throttle above 75C. Blender was 40m

Now with sandpapered heatsink 60C max no throttle and blender in less than 35m. Now I start my M4V2 and easy fix. 
This is a way better day than yesterday  Thank you!

I see. I normally do install and upgrades "the safe way", from console or ssh. But many people will do it from the desktop. I will release a fix for that and other bugs, G.w.

Enviado desde mi moto g(6) plus mediante Tapatalk

I see. I normally do install and upgrades "the safe way", from console or ssh. But many people will do it from the desktop. I will release a fix for that and other bugs, G.w.

Enviado desde mi moto g(6) plus mediante Tapatalk

Hello, my armsoc fork has some bits here and there to allow working fullscreen acceleration with Mali proprietary drivers on mainline kernel using dumb buffers instead of private Ioctls for rockchip, allwinner and amlogic.
On rockchip it works fine also with the legacy 4.4 kernel too.
Hardware cursor works fine, just switch to HWCURSOR_API_PLANE the attribute here
 
The reason why it is currently set to software cursor is to allow the cursor work on rk322x.
rk322x has only two hardware planes and one plane is forcefully used as primary, so just one hardware plane is left for use.
Current rk322x-legacy armbian variant has a patch that allocates the spare hardware plane as overlay, so if I set armsoc to use hardware cursor, the cursor just disappears because there is no hardware cursor plane!
 
A smarter logic in armsoc would be to run over all the DRM planes looking for the hardware cursor one and use it. Otherwise, in case no hardware cursor plane is present, just use the software cursor.
 
To say it all, almost all rockchip SoCs (including rk3288, rk3339, rk3328 and rk322x) have a special dedicated hardware plane capable of up to 128x128 pixels just to be used for the cursor, so you don't have to sacrifice a general purpose hardware plane. I made an incomplete WIP patch for and it partially works, but has issues that cannot be fixed without changing some surrounding code

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3399 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-rk3399 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".
 
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing YouTube videos up to 4K with this MPV.
ISP Camera with real-time h.264/1080p HW encoding: Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support: It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from LightDM menu as your user account: 


Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.

Just to clarify: teacupx is my Github nickname.
 
I examined paolosabatino's commits, and the only one affecting Rockchip that is not present in my fork, is forcing SW cursor. Since I have not experienced any instability due to using HW cursor in my integration, and on the other hand SW cursor introduces an annoying blink when using accelerated EGL layers, I chose to stay with my fork using HW cursor.
 
@jock Any insights on this?

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3288/3328 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-tinkerboard --install-recommends ## Or ## sudo apt install media-buster-legacy-rk3328 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".  
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing Youtube videos up to 4k with this MPV. ISP Camera with real-time h.264/1080p HW encoding (RK3288 only): Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support (RK3288 only): It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from Light DM menu as your user account: 
 
Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot  
Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3399 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-rk3399 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".
 
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing YouTube videos up to 4K with this MPV.
ISP Camera with real-time h.264/1080p HW encoding: Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support: It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from LightDM menu as your user account: 


Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3399 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-rk3399 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".
 
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing YouTube videos up to 4K with this MPV.
ISP Camera with real-time h.264/1080p HW encoding: Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support: It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from LightDM menu as your user account: 


Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3288/3328 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-tinkerboard --install-recommends ## Or ## sudo apt install media-buster-legacy-rk3328 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".  
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing Youtube videos up to 4k with this MPV. ISP Camera with real-time h.264/1080p HW encoding (RK3288 only): Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support (RK3288 only): It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from Light DM menu as your user account: 
 
Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot  
Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.

Essentialy, yes. VPU is identical in last generation SoC's RK3328 and RK3399, lacking VP9 capabilities in the older RK3288.
 
GPU, on the other hand, is very similar in the high-end SoC's (RK3288 and RK3399), much faster and supporting OpenGLES 3 and OpenCL 1.2. The weaker one, RK3328, supports only GLES2 and no OpenCL, plus no ISP camera either.
 
There is also a parallel solution for Odroid XU4, I will document it soon. In that case, VPU decoding capabilities are reduced (no 4K, only 1080p). But GPU is the strongest one, as well as VPU encoding.

IT'S FINALLY HERE...

THE OFFICIAL ROCKCHIP-LEGACY MULTIMEDIA INTEGRATION
 
After two years of using a separate script to enable the multimedia features in RK3399 Legacy Kernel, the whole framework has been incorporated to the official Armbian packaging system. The choice distro for this integration is Debian Buster (see FAQ at the end of this post about the reasons).
 
I. Installation
Download a Armbian Buster Legacy Desktop image for your board, and install it with the standard Armbian method. Install the complete multimedia solution with sudo apt update && sudo apt upgrade sudo apt install media-buster-legacy-rk3399 --install-recommends The switch "--install-recommends" will add the whole Kodi binary addons collection (retro-gaming cores, music visualizations, screensavers, additional media decoders/encoders, vfs, etc.), plus the GLES-to-OpenGL wrapper "gl4es".
 
II. Features
Accelerated GLES/EGL X desktop: No action needed. Accelerated Chromium, with WebGL and video display acceleration: No action needed Desktop video player capable of smooth 4K HEVC-HDR: Use the "Rockchip Gst Player" from the Multimedia menu, or choose it with right-click on the media file. Command-line 4K playing is also possible with "gst-play-1.0 --videosink=kmssink". RKMPP-accelerated MPV: Use normally for standard operation (windowed with mouse-operated GUI). For fullscreen, keyboard-operated mode, use the command line switch "--gpu-context=drm" (this will allow you to play smooth 4K).
        - See instructions below, in the next post, for playing YouTube videos up to 4K with this MPV.
ISP Camera with real-time h.264/1080p HW encoding: Using the Gstreamer Plugin. Check this wiki for instructions on how to use it. Most of it applies to Armbian, except for the selection of ov5647/imx219 camera, which must be done using DT overlays. OpenCL 1.2 support: It will be fully functional, no further action needed. You can download some tests and examples from this link. Kodi 18.9 Leia with full RKMPP+GBM acceleration, 4K-HDR capable: You can start it from LightDM menu as your user account: 


Alternatively, you can also run it as a system service with these command lines: sudo systemctl disable lightdm sudo systemctl enable kodi-gbm sudo reboot Full collection of Kodi binary add-ons: Includes retrogaming cores, media encoders and decoders, PVR, screensavers, vfs and audio visualizations. They are all installed with the package "kodi-addons-full", but are disabled by default. They need to be enabled individually within the Kodi GUI. OpenGL 2.1 support through the gl4es wrapper: It is installed with the package "gl4es", with no further action needed.  
III. Sources
This is the list of the sources used for the packages:
 
IV. FAQ
¿Why did you use Debian Buster as a base for this implementation?
It was the most appropriate for several reasons. Upstream Rockchip-Linux developers use Debian buster, so the software could be ported with less modifications than if we chose a different distro. Besides, it is a completely stable distro, unlike Bullseye, which is a moving target as of today. It also has Chromium as a package, unlike Focal that uses snap instead. For last, it has a good backports repo, with several libs that would otherwise need to be compiled and maintained if we chose, for example, Focal.
  ¿Why Legacy instead of Mainline?
This is an implementation based on the vendor's BSP kernel. It has been tested and is reliable, which many people will prefer rather than having a bleeding-edge, less stable implementation. In addition to that, Mainline upstream multimedia support is still a WIP, and lacks many features that are only present on Legacy kernels.
  ¿Will you add new features to this implementation?
No, this implementation will only receive bug fixes if necessary. From now on, all multimedia work will be focused on Mainline and recent distros (like Focal or Bullseye). All new features will go there.