On 10/27/2016 11:03 PM, Xiang, Haihao wrote:
-----Original Message-----
From: dri-devel [mailto:dri-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf
Of Randy Li
Sent: Monday, October 24, 2016 3:59 PM
To: libva@xxxxxxxxxxxxxxxxxxxxx
Cc: gwenole.beauchesne@xxxxxxxxx; dri-devel@xxxxxxxxxxxxxxxxxxxxx; linux-
rockchip@xxxxxxxxxxxxxxxxxxx; Jaquez, VictorX <victorx.jaquez@xxxxxxxxx>;
eddie.cai <eddie.cai@xxxxxxxxxxxxxx>; 林金发 <alpha.lin@xxxxxxxxxxxxxx>;
herman.chen@xxxxxxxxxxxxxx; vjaquez@xxxxxxxxxx
Subject: How to implement a EGL or DRM display in VA-API driver
Hello:
I am going to implement a EGL and DRM display for Rockchip VA-API driver.
We do have a EGL implementation in Rockchip VA-API driver, but it is
implemented in the standard way, we did that as a X11 display.
I didn't see the usage of struct VADriverVTableEGL in gstreamer, and I have
no idea about where should I implement something functions like
eglExportDRMImageMESA().
VADriverVTableEGL is deprecated in libva, we has a more efficient way to use vaapi and egl.
You can refer to the examples in libyami-utils (https://github.com/01org/libyami-utils.git) for
how to use vaapi and egl.
I see, thank you.
The DRM seems more complex, the reason I want to use the DRM is that,
GPU would not work with the 4K video rendering, so the DRM means that
directly output the video into video controller in our platform. But still have no
idea what kind of thing I should implement in the VA-API driver. It seems that
the VA-API base library would open a DRM instance for the driver, but leaving
those configure for connector, encoder, planes to VA-API driver?
About the DRM, I have implemented a version which pretends a X output, I
would like to know a better way.
configure for connector, encoder, planes aren't a part of va-api driver. You should check libdrm and drm/i915.
You can refer to the test case of modetest in libdrm (git.freedesktop.org/git/mesa/drm)
Could you guys give me same sample code or example of those kind of
display in VA-API or the documents would help(I would not image there is a
VA-API documents)
--
Randy Li
The third produce department
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Randy Li
The third produce department
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