[x264-devel] YUY2 to YUV420P with OpenGL ES 3.1

[Emily Bowman]

If you throw it up on a github, it'd probably get a few people who could
use it, at least.

ffmpeg's been working on a gpu replacement/enhancement of swscale for a
long time, but in the meantime, bespoke solutions have to fill the gap.

On Sun, Jan 26, 2020 at 10:37 PM Chris Hiszpanski <chris at hiszpanski.name>
wrote:

> > Colorspace conversion is a bit out of scope for libx264, since that's
> > a very deep rabbit hole to go into.
>
> Makes sense, thanks.
>
> > Note that YUY2 (YUYV) input is natively supported for 4:2:2 encoding
> > already, although afaik it only has SIMD on x86.
>
> Good to know. Yeah, not sure if it makes sense adding SIMD on ARM as
> they're mostly used in relatively lower-powered embedded devices that
> typically have hardware encoders (bizarre to me that i.MX8M does not),
> and the SIMD instructions would barely achieve real-time frame
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