[FFmpeg-devel] [PATCH] swscale: Add support for NV24 and NV42

[Lauri Kasanen]

On Fri, 10 May 2019 10:08:57 -0700
Philip Langdale <philipl at overt.org> wrote:

> On 2019-05-10 08:12, Lauri Kasanen wrote:
> > On Fri, 10 May 2019 08:07:45 -0700
> > Philip Langdale <philipl at overt.org> wrote:
> >
> >> On Fri, 10 May 2019 09:35:40 +0300
> >> Lauri Kasanen <cand at gmx.com> wrote:
> >>
> >> >
> >> > I'm having trouble making out what formats exactly isSemiPlanarYUV()
> >> > matches. Are you sure it's an equivalent check?
> >> >
> >>
> >> Well, the check's been in there for quite a while; that's not new.
> >>
> >> (isPlanarYUV(pix_fmt) && desc->comp[1].plane == desc->comp[2].plane);
> >>
> >> So, any planar yuv format where component 1 and component 2 are on the
> >> same plane. Except for semi planar formats, you expect either all
> >> components on the same plane (packed, so not planar) or every
> >> component
> >> on a separate plain (normal planar).
> >
> > Yes, I understand that. I mean: can you list all formats that function
> > matches?
>
> For formats that swscale understands:
>
> NV12, NV21
> P010(BE|LE)
> P016(BE|LE)
>
> and now NV24, NV42.
>
> There are also NV16 and NV20(BE|LE) formats which are not supported by
> swscale.

Thanks. Then the ppc part looks ok to me. Please include that list in
the commit message too.

- Lauri