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

[Philip Langdale]

On Fri, 10 May 2019 11:03:46 +0200
Carl Eugen Hoyos <ceffmpeg at gmail.com> wrote:

> Am Fr., 10. Mai 2019 um 07:59 Uhr schrieb Philip Langdale
> <philipl at overt.org>:
> >
> > I don't think this is terribly useful, as the only thing out there
> > that can even handle NV24 content is VDPAU and the only time you
> > have to deal with it is when doing VDPAU OpenGL interop where
> > swscale is irrelevant. In the other cases you can use YV24
> > (YUV444P).  
> 
> I believe this information was missing from the other commit message
> (or I missed it which is absolutely possible).
> 
> Could it be worthwhile to test where within the vdpau / opengl
> pipeline an issue is making this patch useful?

I mentioned this in the thread around the previous patch.

There's no issue - the interop extension always returns semi planar
formats by design, previously just nv12 for 420 content but now nv24 for
444 content. As I also mentioned, I've got an mpv patch that uses the
new pixel format to correctly handle this case in the interop.

Thanks,

--phil