[FFmpeg-devel] [PATCH] lavfi: add lumakey_opencl filter

[Michael Niedermayer]

On Wed, Jul 25, 2018 at 10:50:43AM -0300, James Almer wrote:
> On 7/25/2018 9:13 AM, Danil Iashchenko wrote:
> > Add lumakey_opencl filter. Behaves like existing lumakey filter.
> 
> Isn't it possible to keep each of these new OpenCL filters as an
> optional codepath within the C version, using an AVOption like "opencl"
> or "hwaccel" to toggle one or another? Or maybe autodetected depending
> on the filter chain and/or input pix_fmt?
> 
> I'm asking because it's getting too crowded. We also have some vaapi and
> qsv duplicate filters, and once we start committing filters using the
> upcoming Vulkan hwcontext the same way, we may also end up introducing
> yet another hardware specific variant for each of these.
> 

> In libavcodec the hwaccels are seamlessly integrated into supported
> decoders. This has been favored over separate full stream hardware
> decoders where possible for the above reasons. It would be ideal to
> achieve the same with libavfilter.

i am in favor of this design as well. The user should not need to have
to know about and manage manually GPU optimizations.

thx

[...]
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Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

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