[FFmpeg-devel] [INFO]AMD D3D11 to OpenCL interop extension for NV12 and P010 textures - split planes

[Alexander Kravchenko]

> -----Original Message-----
> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf Of Mark Thompson
> Sent: Sunday, May 27, 2018 3:29 PM
> To: ffmpeg-devel at ffmpeg.org
> Subject: Re: [FFmpeg-devel] [INFO]AMD D3D11 to OpenCL interop extension for NV12 and P010 textures - split planes
> 
> On 27/05/18 07:57, Alexander Kravchenko wrote:
> > сб, 26 мая 2018 г. в 19:45, Mark Thompson <sw at jkqxz.net>:
> >
> >> On 24/05/18 15:26, Mironov, Mikhail wrote:
> >>> AMD has published OpenCL extension which allows split D3D11 texture
> >> interoped as a single 2D image into two 2D images representing Y and
> >> UV planes.
> >>>
> >> https://www.khronos.org/registry/OpenCL/extensions/amd/cl_amd_planar_
> >> yuv.txt
> >>
> >> Nice!  That looks like exactly what we want :)
> >>
> >> Is there any timeline for when this will be available in released drivers?
> >>
> > Hi Mark.
> > This extension was implemented while ago, so it can be used now.
> 
> I have what claims to be the most recent version of the Radeon drivers (18.5.1, driver version 18.10.16, OpenCL version 24.20.11016.4
> - I don't know which of these is relevant), and it gives me:
> 
> Platform extensions:
> cl_khr_icd cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_amd_event_callback cl_amd_offline_devices
> 
> Device extensions:
> cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics
> cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes
> cl_khr_byte_addressable_store cl_khr_gl_sharing cl_khr_gl_depth_images cl_amd_device_attribute_query cl_amd_vec3
> cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_d3d10_sharing cl_khr_d3d11_sharing
> cl_khr_dx9_media_sharing cl_khr_image2d_from_buffer cl_khr_spir cl_khr_subgroups cl_khr_gl_event cl_khr_depth_images
> cl_khr_mipmap_image cl_khr_mipmap_image_writes cl_amd_liquid_flash
> 
> which doesn't include this extension?
> 


Hi Mark,

It does include the extension. 
Extension was implemented while ago (years ago), but wasn't officially published till now. 

Probably the extension is still not enumerated in device/platform extensions list
Any way it can be used now.


Thanks,
Alexander