[vlc-devel] [PATCH] direct3d11: support YV12 which works better with DXVA2
robux4 at videolabs.io
Wed Apr 1 14:51:04 CEST 2015
On Wed, Apr 1, 2015 at 2:27 PM, Jean-Baptiste Kempf <jb at videolan.org> wrote:
> On 01 Apr, Steve Lhomme wrote :
>> On Wed, Apr 1, 2015 at 2:17 PM, Jean-Baptiste Kempf <jb at videolan.org> wrote:
>> > On 01 Apr, Steve Lhomme wrote :
>> >> I'm working on getting rid of this unnecessary conversion and use NV12
>> >> all the way through. This is the preferred DXVA format and also the
>> > No. So far, our filters are almost exclusively I420/YV12. So, we need
>> > those, to avoid breaking them.
>> If a filter is inserted in the chain, doesn't it take care of the
>> proper input/output conversion ?
> Yes, it adds new filters, in it. But not decoders.
> It's faster to get DxVA directly output in YV12 than having DxVA
> outputting in NV12 and then having a NV12->I420 filter inserted.
I agree but by default people don't use filters. When using filters
it's okay to assume there will be a performance impact.
> With my kindest regards,
> Jean-Baptiste Kempf
> http://www.jbkempf.com/ - +33 672 704 734
> Sent from my Electronic Device
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