Re: [FFmpeg-devel] Request for assistance with adding new pixel format (NV12_8L128) in FFmpeg

[Hendrik Leppkes <h.leppkes@gmail.com>]

On Wed, Feb 8, 2023 at 2:08 PM Jean-Baptiste Kempf <jb@videolan.org> wrote:
>
> On Wed, 8 Feb 2023, at 10:47, Le Bao Tin Ha wrote:
> > Hello, you can found the explanation here:
> >
> > https://docs.kernel.org/userspace-api/media/v4l/pixfmt-yuv-planar.html
> >
> > "V4L2_PIX_FMT_NV12M_8L128 is similar to V4L2_PIX_FMT_NV12M but stores
> > pixels in 2D 8x128 tiles, and stores tiles linearly in memory. The
> > image height must be aligned to a multiple of 128. The layouts of the
> > luma and chroma planes are identical.
> >
> > V4L2_PIX_FMT_NV12_8L128 is similar to V4L2_PIX_FMT_NV12M_8L128 but
> > stores two planes in one memory."
>
> Do we really need those PIX_FMT in FFmpeg public API?
>

Tiled formats also really don't fit into our format definitions, and
would not work with any generic pixel format handling code, as far as
I can tell.

- Hendrik
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