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intel / libyami

Yet Another Media Infrastructure. it is core part of media codec with hardware acceleration, it is yummy to your video experience on Linux like platform.
Apache License 2.0
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modesetting xorg driver #862

Closed jsorg71 closed 5 years ago

jsorg71 commented 5 years ago

Of course yami works great with the intel xorg driver when configured with --enable-x11. I noticed that newer intel system default to modesetting driver which uses glamor to accelerate the xserver with opengl. yami should work with modesetting driver as well when --enable-x11 us used? Do you guys use intel or modesetting driver?

xuguangxin commented 5 years ago

We use Xorg driver. Could you share more details about the glamor and modeseting driver?

yami works fine with dma_buf. Basically, if you can get dma_buf handle from your display.
We have grid example to show you how to use libdrm to display directly. We also have example to show you how to share buffers with Opengl . Not sure it can address your problem or not.

thanks

jsorg71 commented 5 years ago

If you go out and buy a new i7 processor and install Debian 9 or Ubuntu 18.04, you will not get the Intel Xorg driver by default. You will get the modesetting driver. With this, va_x11.h functions seem to work but I see corrupted frame once in a while. Still trying to determine what going on. I think this is not a yami issue but just want to bring it up. BTW, thanks for the example links.

jsorg71 commented 5 years ago

I have a bit more info on this. First note this Debian announcement https://tjaalton.wordpress.com/2016/07/23/intel-graphics-gen4-and-newer-now-defaults-to-modesetting-driver-on-x/ Also, I stated i7 but even low end Atom processor NUC like https://ark.intel.com/products/78577/Intel-NUC-Kit-DE3815TYKHE will default modesetting Xorg driver. I tried displaying with GLX, same problem as X11. I was able to get it working with DRI3 with some hacking. This is certainly not a yami bug and not even a libva. I'm pretty sure this is a glamor issue with a missing glFlush or glFinish. I'll close this and find the modesetting bug tracker and report there.

xuguangxin commented 5 years ago

@jsorg71 , thanks for follow up this