Gabriel Negrisiolo Righi

July 26

On 7/26/2025 at 7:11 AM, robertoj said:

19-dev libclang-19-dev libllvmspirvlib-15-dev

yes, thats it... you need to instal libllvmspirvlib-19-dev though

about kodi... it worked? altough im getting the same artifacs on some videos, its stable and with hw decode on internal player, because the ffmpeg provided by the v4l2 repo is 6.11 had to compile version 21.2 omega gbm platform without internal ffmpeg, then go to video player settings and activate DRM

you need to install jdk11 and select with "sudo update-alternatives --config java"

to compile run cmake with the options

-DCORE_PLATFORM_NAME=gbm -DAPP_RENDER_SYSTEM=gles -DENABLE_INTERNAL_FFMPEG=OFF -DWITH_FFMPEG=/usr/bin/ffmpeg

you should see cmake telling you that ffmpeg version check was disabled and externally selected

After installed you need to launch from a tty

gonna keep testing... the ss bellow is from one episode that i wasnt being able to watch

Quote

Those gliches seems to be only happening with low resolution videos...

soo tested it some more, its working great, when it works, but appart from those artifacts it is buggy with some others videos and it wont play:

i'm testing with online streams also i dont have any movies stored, and this also happens with sw decode on x11 platform btw...

i finally got inputstream.adaptative to compile (if you compile the same version of available kodi on apt you dont have to do this, will be able to just use inputstream from apt, though kodi versions higher than omega requires ffmpeg 7+) and testing with 1080p 60fps

Quote

60fps with PRIME render method set to direct to plane, low cpu usage, video seems smooth but it glitches constantly like a frame drop where it goes back some frames (fps is 12 but it is wrong, video is glitching) and ss is black for some reason)

The entire system crashes when I press stop.

with render method to EGL, smooth 60fps with a bit higher (it goes up to 80%) cpu usage

It says hardware decode and with kodi from apt im not able to get 1080 60fps smooth so I assume it's working?

Definitely better than mpv 👌

July 26

On 7/20/2025 at 5:01 AM, ag123 said:

give kodi a try?

couldnt get it working with platform x11 and forcing it to build without internal ffmpeg stills defaults do software rendering with internal player, you can use mpv as external player it works but ina lot of cases you get a blue screen or a video filled with artifacts then it crashes... i'm compiling it with only gbm and forced external ffmpeg to test

to use kodi with mpv create a file

~/.kodi/userdata/playercorefactory.xml

Quote

<playercorefactory>
<players>
<player name="MPV" type="ExternalPlayer" audio="false" video="true">
<filename>/usr/bin/mpv</filename>
<args>PAN_MESA_DEBUG=gofaster --hwdec=drm --profile=fast --fs "{1}"</args>
<hidexbmc>true</hidexbmc>
<hideconsole>true</hideconsole>
</player>
</players>

<rules action="prepend">
<rule video="true" player="MPV"/>
</rules>
</playercorefactory>

then make it immutable because kodi for some reason keeps deleting it

"sudo chattr +i ~/.kodi/userdata/playercorefactory.xml"

to edit or delete run the same command with -i

July 26

14 hours ago, robertoj said:

Thank you for your suggestions. I am trying to build Mesa in my Orange Pi Zero 3.

I've run into similar problems and checking the bash history, what i used was

sudo apt-get install build-essential meson ninja-build pkg-config git cmake gettext python3-mako python3-pip bison flex zlib1g-dev libelf-dev libunwind-dev libglvnd-dev llvm-18-dev libclang-18-dev libllvmspirvlib-18-dev libdrm-dev libva-dev libvdpau-dev libvulkan-dev vulkan-tools vulkan-validationlayers-dev spirv-tools libx11-dev libxext-dev libxdamage-dev libxfixes-dev libxrandr-dev libxshmfence-dev libxxf86vm-dev libxkbcommon-dev

for what i've saw it seems axtracker is only needed with -Dgallium-xvmc=enabled so try to explicitly disable this if youre not declaring.. and try to keep the build options simple as in

On 7/19/2025 at 7:34 PM, Gabriel Negrisiolo Righi said:

PYTHON=~/src/mesa/mesa_venv/bin/python3 ~/src/mesa/mesa_venv/bin/meson setup build -Dbuildtype=release -Dprefix=/usr -Dgallium-drivers=panfrost -Dvulkan-drivers=panfrost -Dplatforms=x11 -Dvideo-codecs=all

it is worth the hassle, performance increase within latest mesa releases is noticeable

another tip is to create a alias to mpv in basrc (and launch gl applications with the same envs)

alias mpv='vblank_mode=3 MESA_GLTHREAD=1 PAN_MESA_DEBUG=gofaster nice -n -20 mpv'

it is actually faster, but don't set those mesa variables globally as it crashes xfce a lot

July 19

Quote

I actually dont remember the exact order of install, but from what i can recall first i compiled and installed libva-v4l2-request-HACK_HEVC.zip and followed that tutorial

then i downloaded h618_hwdec.tar.gz from https://www.elektroda.pl/rtvforum/topic4018092.html#20840047, those are the libs i replaced in /lib/aarch64-linux-gnu/

install latest edge kernel from armbian-config (or enable rolling updates), download kernel hearders and enable gpu in device tree overlays

to compile mesa first install deps than creat a python venv in mesa src directory to download latest meson in it

sudo apt-get install bison build-essential ccache clang cmake flex git glslang-tools libclang-dev libdrm-dev libelf-dev libexpat1-dev libgl1-mesa-dev libgles2-mesa-dev libgoogle-perftools-dev libgtk-3-dev libllvm-18-dev libomxil-bellagio-dev libpciaccess-dev libsensors-dev libspirv-tools-dev libunwind-dev libva-dev libvdpau-dev libvulkan-dev libwayland-dev libx11-dev libx11-xcb-dev libxatracker-dev libxcb-dri2-0-dev libxcb-dri3-dev libxcb-glx0-dev libxcb-present-dev libxcb-randr0-dev libxcb-shm0-dev libxcb-sync-dev libxcb-xfixes0-dev libxdamage-dev libxext-dev libxfixes-dev libxrandr-dev libxshmfence-dev libxxf86vm-dev libzstd-dev llvm-18-dev meson ninja-build pkg-config python3-mako python3-pil wayland-protocols python3-venv

python3 -m venv mesa_venv
source mesa_venv/bin/activate
pip3 install meson

but if i tried to compile from inside the venv i was gettin a mako version error so i exited the venv (just open another terminal window) used this exact command to be able to build from outside the python3 venv

PYTHON=~/src/mesa/mesa_venv/bin/python3 ~/src/mesa/mesa_venv/bin/meson setup build -Dbuildtype=release -Dprefix=/usr -Dgallium-drivers=panfrost -Dvulkan-drivers=panfrost -Dplatforms=x11 -Dvideo-codecs=all

you need to add wayland to platforms if you're using it, i'm not

(replace '~/src/mesa/mesa_venv/bin/python3' and '~/src/mesa/mesa_venv/bin/meson' with the path where you cloned the source...)

install any other dependencies it complains about then install with sudo ninja -C build install

you can confirm with glxinfo -B

gabriel@orangepizero3:~/$ glxinfo -B
name of display: :0.0
display: :0  screen: 0
direct rendering: Yes
Extended renderer info (GLX_MESA_query_renderer):
    Vendor: Mesa (0xffffffff)
    Device: Mali-G31 (Panfrost) (0xffffffff)
    Version: 25.2.0
    Accelerated: yes
    Video memory: 3922MB 
...

i don't know if that libva hack is working but vainfo recognize

gabriel@orangepizero3:~$ LIBVA_DRIVER_NAME=v4l2_request vainfo
libva info: VA-API version 1.20.0
libva info: User environment variable requested driver 'v4l2_request'
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/v4l2_request_drv_video.so
libva info: Found init function __vaDriverInit_1_20
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.20 (libva 2.12.0)
vainfo: Driver version: v4l2-request
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            :	VAEntrypointVLD
      VAProfileMPEG2Main              :	VAEntrypointVLD
      VAProfileH264Main               :	VAEntrypointVLD
      VAProfileH264High               :	VAEntrypointVLD
      VAProfileH264ConstrainedBaseline:	VAEntrypointVLD
      VAProfileH264MultiviewHigh      :	VAEntrypointVLD
      VAProfileH264StereoHigh         :	VAEntrypointVLD
      VAProfileHEVCMain               :	VAEntrypointVLD

and finally mpv (with yt-dlp installed)

gabriel@orangepizero3:~/$ mpv --hwdec=drm --profile=fast https://www.youtube.com/watch?v=Dyzf2evNjwc
 (+) Video --vid=1 (*) (h264 1920x1080 29.970fps)
 (+) Audio --aid=1 --alang=eng (*) (opus 2ch 48000Hz)
File tags:
 Uploader: Zen Mechanics
 Channel_URL: https://www.youtube.com/channel/UCC8n8afKsdaYuI7Pr0J4pgA
Using hardware decoding (drm).
AO: [pulse] 48000Hz stereo 2ch float
VO: [gpu] 1920x1080 drm_prime[nv12]

it is a bit confusing but i hope it helps...

i also recommend this moded mpv handler with youtube playlist and mpv prefetch queueing support: https://github.com/gabreek/mpv-handler-queue

July 19

i've got working with compositor turned on

July 17

For those who are seeking to enable video decode i've been able to get it working with those libs

https://www.elektroda.pl/rtvforum/topic4018092.html#20840047

download h618_hwdec.tar.gz and replace the libs and add "extraargs=cma=256M" to your /boot/armbianEnv.txt , mpv works flawlessly with --hwdec=drm --profile=fast, scrcpy is also fast and with minimal cpu usage...

i'm also using rolling edge kernel, and latest 25.2 mesa from source

libva-v4l2-request-HACK_HEVC.zip

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