Re: [PATCH 0/2] Add V4L2_BUF_TYPE_META_OUTPUT buffer type

[Tomasz Figa <tfiga@chromium.org>]

Hi Sakari,

On Sat, Aug 19, 2017 at 6:30 AM, Sakari Ailus
<sakari.ailus@linux.intel.com> wrote:
> Hi folks,
>
> Here's a non-RFC version of the META_OUTPUT buffer type patches.
>
> The V4L2_BUF_TYPE_META_OUTPUT buffer type complements the metadata buffer
> types support for OUTPUT buffers, capture being already supported. This is
> intended for similar cases than V4L2_BUF_TYPE_META_CAPTURE but for output
> buffers, e.g. device parameters that may be complex and highly
> hierarchical data structure. Statistics are a current use case for
> metadata capture buffers.
>
> Yong: could you take these to your IPU3 ImgU patchset, please? As that
> would be the first user, the patches would be merged with the driver
> itself.
>
> since RFC:
>
> - Fix make htmldocs build.
>
> - Fix CAPTURE -> OUTPUT in buffer.rst.
>
> - Added " for specifying how the device processes images" in the
>   documentation.
>
> Sakari Ailus (2):
>   v4l: Add support for V4L2_BUF_TYPE_META_OUTPUT
>   docs-rst: v4l: Document V4L2_BUF_TYPE_META_OUTPUT interface
>
>  Documentation/media/uapi/v4l/buffer.rst          |  3 +++
>  Documentation/media/uapi/v4l/dev-meta.rst        | 33 ++++++++++++++----------
>  Documentation/media/uapi/v4l/vidioc-querycap.rst |  3 +++
>  Documentation/media/videodev2.h.rst.exceptions   |  2 ++
>  drivers/media/v4l2-core/v4l2-compat-ioctl32.c    |  2 ++
>  drivers/media/v4l2-core/v4l2-ioctl.c             | 25 ++++++++++++++++++
>  drivers/media/v4l2-core/videobuf2-v4l2.c         |  1 +
>  include/media/v4l2-ioctl.h                       | 17 ++++++++++++
>  include/uapi/linux/videodev2.h                   |  2 ++
>  9 files changed, 75 insertions(+), 13 deletions(-)

For the whole series:
Reviewed-by: Tomasz Figa <tfiga@chromium.org>

Best regards,
Tomasz