Hi,
What you need is the way to connect libva decode and ocl
post-processing by
gpu buffer sharing. You just need to:
1. Decode your video/picture to a VASurface.
2. Use vaAcquireBufferHandle to get VASurface’s handle.
3. Use clCreateBufferFromLibvaIntel/clCreateImageFromLibvaIntel to create
corresponding cl memory object from VASurface’s handle.
4. Use ocl to do post-processing.
5. Invoke vaReleaseBufferHandle to unlock the VASurface.
Libva supports vaAcquireBufferHandle/ vaReleaseBufferHandle since 1.4.0, so
please
update your libva and intel-driver if necessary.
Thanks,
Chuanbo Weng
From: Beignet [mailto:beignet-boun...@lists.freedesktop.org] On Behalf Of
azlin...@gmail.com
Sent: Tuesday, November 18, 2014 19:51
To: beignet
Subject: [Beignet] beignet opencl and libva
Hi:
I need help!
Do anyone have an example: using libva decode, then using ocl post-processing!
Thanks
发自我的小米手机
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