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

[Philip Langdale]

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.

--phil